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21 files changed, 3276 insertions, 0 deletions

diff --git a/src/luarocks/cmd/build.lua b/src/luarocks/cmd/build.lua
new file mode 100644
index 0000000..3268041
--- /dev/null
+++ b/src/luarocks/cmd/build.lua
@@ -0,0 +1,198 @@
+
+--- Module implementing the LuaRocks "build" command.
+-- Builds a rock, compiling its C parts if any.
+local cmd_build = {}
+
+local pack = require("luarocks.pack")
+local path = require("luarocks.path")
+local util = require("luarocks.util")
+local fetch = require("luarocks.fetch")
+local fs = require("luarocks.fs")
+local deps = require("luarocks.deps")
+local remove = require("luarocks.remove")
+local cfg = require("luarocks.core.cfg")
+local build = require("luarocks.build")
+local writer = require("luarocks.manif.writer")
+local search = require("luarocks.search")
+local make = require("luarocks.cmd.make")
+local repos = require("luarocks.repos")
+
+function cmd_build.add_to_parser(parser)
+   local cmd = parser:command("build", "Build and install a rock, compiling its C parts if any.\n"..  -- luacheck: ignore 431
+      "If the sources contain a luarocks.lock file, uses it as an authoritative source for "..
+      "exact version of dependencies.\n"..
+      "If no arguments are given, behaves as luarocks make.", util.see_also())
+      :summary("Build/compile a rock.")
+
+   cmd:argument("rock", "A rockspec file, a source rock file, or the name of "..
+      "a rock to be fetched from a repository.")
+      :args("?")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Rock version.")
+      :args("?")
+
+   cmd:flag("--only-deps --deps-only", "Install only the dependencies of the rock.")
+   cmd:option("--branch", "Override the `source.branch` field in the loaded "..
+      "rockspec. Allows to specify a different branch to fetch. Particularly "..
+      'for "dev" rocks.')
+      :argname("<name>")
+   cmd:flag("--pin", "Create a luarocks.lock file listing the exact "..
+      "versions of each dependency found for this rock (recursively), "..
+      "and store it in the rock's directory. "..
+      "Ignores any existing luarocks.lock file in the rock's sources.")
+   make.cmd_options(cmd)
+end
+
+--- Build and install a rock.
+-- @param rock_filename string: local or remote filename of a rock.
+-- @param opts table: build options
+-- @return boolean or (nil, string, [string]): True if build was successful,
+-- or false and an error message and an optional error code.
+local function build_rock(rock_filename, opts)
+   assert(type(rock_filename) == "string")
+   assert(opts:type() == "build.opts")
+
+   local ok, err, errcode
+
+   local unpack_dir
+   unpack_dir, err, errcode = fetch.fetch_and_unpack_rock(rock_filename, nil, opts.verify)
+   if not unpack_dir then
+      return nil, err, errcode
+   end
+
+   local rockspec_filename = path.rockspec_name_from_rock(rock_filename)
+
+   ok, err = fs.change_dir(unpack_dir)
+   if not ok then return nil, err end
+
+   local rockspec
+   rockspec, err, errcode = fetch.load_rockspec(rockspec_filename)
+   if not rockspec then
+      return nil, err, errcode
+   end
+
+   ok, err, errcode = build.build_rockspec(rockspec, opts)
+
+   fs.pop_dir()
+   return ok, err, errcode
+end
+
+local function do_build(name, namespace, version, opts)
+   assert(type(name) == "string")
+   assert(type(namespace) == "string" or not namespace)
+   assert(version == nil or type(version) == "string")
+   assert(opts:type() == "build.opts")
+
+   local url, err
+   if name:match("%.rockspec$") or name:match("%.rock$") then
+      url = name
+   else
+      url, err = search.find_src_or_rockspec(name, namespace, version, opts.check_lua_versions)
+      if not url then
+         return nil, err
+      end
+   end
+
+   name, version = path.parse_name(url)
+   if name and repos.is_installed(name, version) then
+      if not opts.rebuild then
+         util.printout(name .. " " .. version .. " is already installed in " .. path.root_dir(cfg.root_dir))
+         util.printout("Use --force to reinstall.")
+         return name, version, "skip"
+      end
+   end
+
+   if url:match("%.rockspec$") then
+      local rockspec, err = fetch.load_rockspec(url, nil, opts.verify)
+      if not rockspec then
+         return nil, err
+      end
+      return build.build_rockspec(rockspec, opts)
+   end
+
+   if url:match("%.src%.rock$") then
+      opts.need_to_fetch = false
+   end
+
+   return build_rock(url, opts)
+end
+
+--- Driver function for "build" command.
+-- If a package name is given, forwards the request to "search" and,
+-- if returned a result, installs the matching rock.
+-- When passing a package name, a version number may also be given.
+-- @return boolean or (nil, string, exitcode): True if build was successful; nil and an
+-- error message otherwise. exitcode is optionally returned.
+function cmd_build.command(args)
+   if not args.rock then
+      return make.command(args)
+   end
+
+   local opts = build.opts({
+      need_to_fetch = true,
+      minimal_mode = false,
+      deps_mode = deps.get_deps_mode(args),
+      build_only_deps = not not (args.only_deps and not args.pack_binary_rock),
+      namespace = args.namespace,
+      branch = args.branch,
+      verify = not not args.verify,
+      check_lua_versions = not not args.check_lua_versions,
+      pin = not not args.pin,
+      rebuild = not not (args.force or args.force_fast),
+      no_install = false
+   })
+
+   if args.sign and not args.pack_binary_rock then
+      return nil, "In the build command, --sign is meant to be used only with --pack-binary-rock"
+   end
+
+   if args.pack_binary_rock then
+      return pack.pack_binary_rock(args.rock, args.namespace, args.version, args.sign, function()
+         local name, version = do_build(args.rock, args.namespace, args.version, opts)
+         if name and args.no_doc then
+            util.remove_doc_dir(name, version)
+         end
+         return name, version
+      end)
+   end
+
+   local name, version, skip = do_build(args.rock, args.namespace, args.version, opts)
+   if not name then
+      return nil, version
+   end
+   if skip == "skip" then
+      return name, version
+   end
+
+   if args.no_doc then
+      util.remove_doc_dir(name, version)
+   end
+
+   if opts.build_only_deps then
+      util.printout("Stopping after installing dependencies for " ..name.." "..version)
+      util.printout()
+   else
+      if (not args.keep) and not cfg.keep_other_versions then
+         local ok, err, warn = remove.remove_other_versions(name, version, args.force, args.force_fast)
+         if not ok then
+            return nil, err
+         elseif warn then
+            util.printerr(err)
+         end
+      end
+   end
+
+   if opts.deps_mode ~= "none" then
+      writer.check_dependencies(nil, deps.get_deps_mode(args))
+   end
+   return name, version
+end
+
+cmd_build.needs_lock = function(args)
+   if args.pack_binary_rock then
+      return false
+   end
+   return true
+end
+
+return cmd_build
diff --git a/src/luarocks/cmd/config.lua b/src/luarocks/cmd/config.lua
new file mode 100644
index 0000000..d67711a
--- /dev/null
+++ b/src/luarocks/cmd/config.lua
@@ -0,0 +1,392 @@
+--- Module implementing the LuaRocks "config" command.
+-- Queries information about the LuaRocks configuration.
+local config_cmd = {}
+
+local persist = require("luarocks.persist")
+local config = require("luarocks.config")
+local cfg = require("luarocks.core.cfg")
+local util = require("luarocks.util")
+local deps = require("luarocks.deps")
+local dir = require("luarocks.dir")
+local fs = require("luarocks.fs")
+local json = require("luarocks.vendor.dkjson")
+
+function config_cmd.add_to_parser(parser)
+   local cmd = parser:command("config", [[
+Query information about the LuaRocks configuration.
+
+* When given a configuration key, it prints the value of that key according to
+  the currently active configuration (taking into account all config files and
+  any command-line flags passed)
+
+  Examples:
+     luarocks config variables.LUA_INCDIR
+     luarocks config lua_version
+
+* When given a configuration key and a value, it overwrites the config file (see
+  the --scope option below to determine which) and replaces the value of the
+  given key with the given value.
+
+  * `lua_dir` is a special key as it checks for a valid Lua installation
+    (equivalent to --lua-dir) and sets several keys at once.
+  * `lua_version` is a special key as it changes the default Lua version
+    used by LuaRocks commands (equivalent to passing --lua-version).
+
+  Examples:
+     luarocks config variables.OPENSSL_DIR /usr/local/openssl
+     luarocks config lua_dir /usr/local
+     luarocks config lua_version 5.3
+
+* When given a configuration key and --unset, it overwrites the config file (see
+  the --scope option below to determine which) and deletes that key from the
+  file.
+
+  Example: luarocks config variables.OPENSSL_DIR --unset
+
+* When given no arguments, it prints the entire currently active configuration,
+  resulting from reading the config files from all scopes.
+
+  Example: luarocks config]], util.see_also([[
+   https://github.com/luarocks/luarocks/wiki/Config-file-format
+   for detailed information on the LuaRocks config file format.
+]]))
+      :summary("Query information about the LuaRocks configuration.")
+
+   cmd:argument("key", "The configuration key.")
+      :args("?")
+   cmd:argument("value", "The configuration value.")
+      :args("?")
+
+   cmd:option("--scope", "The scope indicates which config file should be rewritten.\n"..
+      '* Using a wrapper created with `luarocks init`, the default is "project".\n'..
+      '* Using --local (or when `local_by_default` is `true`), the default is "user".\n'..
+      '* Otherwise, the default is "system".')
+      :choices({"system", "user", "project"})
+   cmd:flag("--unset", "Delete the key from the configuration file.")
+   cmd:flag("--json", "Output as JSON.")
+
+   -- Deprecated flags
+   cmd:flag("--lua-incdir"):hidden(true)
+   cmd:flag("--lua-libdir"):hidden(true)
+   cmd:flag("--lua-ver"):hidden(true)
+   cmd:flag("--system-config"):hidden(true)
+   cmd:flag("--user-config"):hidden(true)
+   cmd:flag("--rock-trees"):hidden(true)
+end
+
+local function config_file(conf)
+   print(dir.normalize(conf.file))
+   if conf.found then
+      return true
+   else
+      return nil, "file not found"
+   end
+end
+
+local function traverse_varstring(var, tbl, fn, missing_parent)
+   local k, r = var:match("^%[([0-9]+)%]%.(.*)$")
+   if k then
+      k = tonumber(k)
+   else
+      k, r = var:match("^([^.[]+)%.(.*)$")
+      if not k then
+         k, r = var:match("^([^[]+)(%[.*)$")
+      end
+   end
+
+   if k then
+      if not tbl[k] and missing_parent then
+         missing_parent(tbl, k)
+      end
+
+      if tbl[k] then
+         return traverse_varstring(r, tbl[k], fn, missing_parent)
+      else
+         return nil, "Unknown entry " .. k
+      end
+   end
+
+   local i = var:match("^%[([0-9]+)%]$")
+   if i then
+      var = tonumber(i)
+   end
+
+   return fn(tbl, var)
+end
+
+local function print_json(value)
+   print(json.encode(value))
+   return true
+end
+
+local function print_entry(var, tbl, is_json)
+   return traverse_varstring(var, tbl, function(t, k)
+      if not t[k] then
+         return nil, "Unknown entry " .. k
+      end
+      local val = t[k]
+
+      if not config.should_skip(var, val) then
+         if is_json then
+            return print_json(val)
+         elseif type(val) == "string" then
+            print(val)
+         else
+            persist.write_value(io.stdout, val)
+         end
+      end
+      return true
+   end)
+end
+
+local function infer_type(var)
+   local typ
+   traverse_varstring(var, cfg, function(t, k)
+      if t[k] ~= nil then
+         typ = type(t[k])
+      end
+   end)
+   return typ
+end
+
+local function write_entries(keys, scope, do_unset)
+   if scope == "project" and not cfg.config_files.project then
+      return nil, "Current directory is not part of a project. You may want to run `luarocks init`."
+   end
+
+   local file_name = cfg.config_files[scope].file
+
+   local tbl, err = persist.load_config_file_if_basic(file_name, cfg)
+   if not tbl then
+      return nil, err
+   end
+
+   for var, val in util.sortedpairs(keys) do
+      traverse_varstring(var, tbl, function(t, k)
+         if do_unset then
+            t[k] = nil
+         else
+            local typ = infer_type(var)
+            local v
+            if typ == "number" and tonumber(val) then
+               v = tonumber(val)
+            elseif typ == "boolean" and val == "true" then
+               v = true
+            elseif typ == "boolean" and val == "false" then
+               v = false
+            else
+               v = val
+            end
+            t[k] = v
+            keys[var] = v
+         end
+         return true
+      end, function(p, k)
+         p[k] = {}
+      end)
+   end
+
+   local ok, err = fs.make_dir(dir.dir_name(file_name))
+   if not ok then
+      return nil, err
+   end
+
+   ok, err = persist.save_from_table(file_name, tbl)
+   if ok then
+      print(do_unset and "Removed" or "Wrote")
+      for var, val in util.sortedpairs(keys) do
+         if do_unset then
+            print(("\t%s"):format(var))
+         else
+            if type(val) == "string" then
+               print(("\t%s = %q"):format(var, val))
+            else
+               print(("\t%s = %s"):format(var, tostring(val)))
+            end
+         end
+      end
+      print(do_unset and "from" or "to")
+      print("\t" .. file_name)
+      return true
+   else
+      return nil, err
+   end
+end
+
+local function get_scope(args)
+   return args.scope
+          or (args["local"] and "user")
+          or (args.project_tree and "project")
+          or (cfg.local_by_default and "user")
+          or (fs.is_writable(cfg.config_files["system"].file) and "system")
+          or "user"
+end
+
+local function report_on_lua_incdir_config(value, lua_version)
+   local variables = {
+      ["LUA_DIR"] = cfg.variables.LUA_DIR,
+      ["LUA_BINDIR"] = cfg.variables.LUA_BINDIR,
+      ["LUA_INCDIR"] = value,
+      ["LUA_LIBDIR"] = cfg.variables.LUA_LIBDIR,
+      ["LUA"] = cfg.variables.LUA,
+   }
+
+   local ok, err = deps.check_lua_incdir(variables, lua_version)
+   if not ok then
+      util.printerr()
+      util.warning((err:gsub(" You can use.*", "")))
+   end
+   return ok
+end
+
+local function report_on_lua_libdir_config(value, lua_version)
+   local variables = {
+      ["LUA_DIR"] = cfg.variables.LUA_DIR,
+      ["LUA_BINDIR"] = cfg.variables.LUA_BINDIR,
+      ["LUA_INCDIR"] = cfg.variables.LUA_INCDIR,
+      ["LUA_LIBDIR"] = value,
+      ["LUA"] = cfg.variables.LUA,
+   }
+
+   local ok, err, _, err_files = deps.check_lua_libdir(variables, lua_version)
+   if not ok then
+      util.printerr()
+      util.warning((err:gsub(" You can use.*", "")))
+      util.printerr("Tried:")
+      for _, l in pairs(err_files or {}) do
+         for _, d in ipairs(l) do
+            util.printerr("\t" .. d)
+         end
+      end
+   end
+   return ok
+end
+
+local function warn_bad_c_config()
+   util.printerr()
+   util.printerr("LuaRocks may not work correctly when building C modules using this configuration.")
+   util.printerr()
+end
+
+--- Driver function for "config" command.
+-- @return boolean: True if succeeded, nil on errors.
+function config_cmd.command(args)
+   local lua_version = args.lua_version or cfg.lua_version
+
+   deps.check_lua_incdir(cfg.variables, lua_version)
+   deps.check_lua_libdir(cfg.variables, lua_version)
+
+   -- deprecated flags
+   if args.lua_incdir then
+      print(cfg.variables.LUA_INCDIR)
+      return true
+   end
+   if args.lua_libdir then
+      print(cfg.variables.LUA_LIBDIR)
+      return true
+   end
+   if args.lua_ver then
+      print(cfg.lua_version)
+      return true
+   end
+   if args.system_config then
+      return config_file(cfg.config_files.system)
+   end
+   if args.user_config then
+      return config_file(cfg.config_files.user)
+   end
+   if args.rock_trees then
+      for _, tree in ipairs(cfg.rocks_trees) do
+      	if type(tree) == "string" then
+      	   util.printout(dir.normalize(tree))
+      	else
+      	   local name = tree.name and "\t"..tree.name or ""
+      	   util.printout(dir.normalize(tree.root)..name)
+      	end
+      end
+      return true
+   end
+
+   if args.key == "lua_version" and args.value then
+      local scope = get_scope(args)
+      if scope == "project" and not cfg.config_files.project then
+         return nil, "Current directory is not part of a project. You may want to run `luarocks init`."
+      end
+
+      local location = cfg.config_files[scope]
+      if (not location) or (not location.file) then
+         return nil, "could not get config file location for " .. tostring(scope) .. " scope"
+      end
+
+      local prefix = dir.dir_name(location.file)
+      local ok, err = persist.save_default_lua_version(prefix, args.value)
+      if not ok then
+         return nil, "could not set default Lua version: " .. err
+      end
+      print("Lua version will default to " .. args.value .. " in " .. prefix)
+   end
+
+   if args.key == "lua_dir" and args.value then
+      local scope = get_scope(args)
+      local keys = {
+         ["variables.LUA_DIR"] = cfg.variables.LUA_DIR,
+         ["variables.LUA_BINDIR"] = cfg.variables.LUA_BINDIR,
+         ["variables.LUA_INCDIR"] = cfg.variables.LUA_INCDIR,
+         ["variables.LUA_LIBDIR"] = cfg.variables.LUA_LIBDIR,
+         ["variables.LUA"] = cfg.variables.LUA,
+      }
+      if args.lua_version then
+         local prefix = dir.dir_name(cfg.config_files[scope].file)
+         persist.save_default_lua_version(prefix, args.lua_version)
+      end
+      local ok, err = write_entries(keys, scope, args.unset)
+      if ok then
+         local inc_ok = report_on_lua_incdir_config(cfg.variables.LUA_INCDIR, lua_version)
+         local lib_ok = ok and report_on_lua_libdir_config(cfg.variables.LUA_LIBDIR, lua_version)
+         if not (inc_ok and lib_ok) then
+            warn_bad_c_config()
+         end
+      end
+
+      return ok, err
+   end
+
+   if args.key then
+      if args.key:match("^[A-Z]") then
+         args.key = "variables." .. args.key
+      end
+
+      if args.value or args.unset then
+         local scope = get_scope(args)
+
+         local ok, err = write_entries({ [args.key] = args.value or args.unset }, scope, args.unset)
+
+         if ok then
+            if args.key == "variables.LUA_INCDIR" then
+               local ok = report_on_lua_incdir_config(args.value, lua_version)
+               if not ok then
+                  warn_bad_c_config()
+               end
+            elseif args.key == "variables.LUA_LIBDIR" then
+               local ok = report_on_lua_libdir_config(args.value, lua_version)
+               if not ok then
+                  warn_bad_c_config()
+               end
+            end
+         end
+
+         return ok, err
+      else
+         return print_entry(args.key, cfg, args.json)
+      end
+   end
+
+   if args.json then
+      return print_json(config.get_config_for_display(cfg))
+   else
+      print(config.to_string(cfg))
+      return true
+   end
+end
+
+return config_cmd
diff --git a/src/luarocks/cmd/doc.lua b/src/luarocks/cmd/doc.lua
new file mode 100644
index 0000000..a311700
--- /dev/null
+++ b/src/luarocks/cmd/doc.lua
@@ -0,0 +1,153 @@
+
+--- Module implementing the LuaRocks "doc" command.
+-- Shows documentation for an installed rock.
+local doc = {}
+
+local util = require("luarocks.util")
+local queries = require("luarocks.queries")
+local search = require("luarocks.search")
+local path = require("luarocks.path")
+local dir = require("luarocks.dir")
+local fetch = require("luarocks.fetch")
+local fs = require("luarocks.fs")
+local download = require("luarocks.download")
+
+function doc.add_to_parser(parser)
+   local cmd = parser:command("doc", "Show documentation for an installed rock.\n\n"..
+      "Without any flags, tries to load the documentation using a series of heuristics.\n"..
+      "With flags, return only the desired information.", util.see_also([[
+   For more information about a rock, see the 'show' command.
+]]))
+      :summary("Show documentation for an installed rock.")
+
+   cmd:argument("rock", "Name of the rock.")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Version of the rock.")
+      :args("?")
+
+   cmd:flag("--home", "Open the home page of project.")
+   cmd:flag("--list", "List documentation files only.")
+   cmd:flag("--porcelain", "Produce machine-friendly output.")
+end
+
+local function show_homepage(homepage, name, namespace, version)
+   if not homepage then
+      return nil, "No 'homepage' field in rockspec for "..util.format_rock_name(name, namespace, version)
+   end
+   util.printout("Opening "..homepage.." ...")
+   fs.browser(homepage)
+   return true
+end
+
+local function try_to_open_homepage(name, namespace, version)
+   local temp_dir, err = fs.make_temp_dir("doc-"..name.."-"..(version or ""))
+   if not temp_dir then
+      return nil, "Failed creating temporary directory: "..err
+   end
+   util.schedule_function(fs.delete, temp_dir)
+   local ok, err = fs.change_dir(temp_dir)
+   if not ok then return nil, err end
+   local filename, err = download.download("rockspec", name, namespace, version)
+   if not filename then return nil, err end
+   local rockspec, err = fetch.load_local_rockspec(filename)
+   if not rockspec then return nil, err end
+   fs.pop_dir()
+   local descript = rockspec.description or {}
+   return show_homepage(descript.homepage, name, namespace, version)
+end
+
+--- Driver function for "doc" command.
+-- @return boolean: True if succeeded, nil on errors.
+function doc.command(args)
+   local query = queries.new(args.rock, args.namespace, args.version)
+   local iname, iversion, repo = search.pick_installed_rock(query, args.tree)
+   if not iname then
+      local rock = util.format_rock_name(args.rock, args.namespace, args.version)
+      util.printout(rock.." is not installed. Looking for it in the rocks servers...")
+      return try_to_open_homepage(args.rock, args.namespace, args.version)
+   end
+   local name, version = iname, iversion
+
+   local rockspec, err = fetch.load_local_rockspec(path.rockspec_file(name, version, repo))
+   if not rockspec then return nil,err end
+   local descript = rockspec.description or {}
+
+   if args.home then
+      return show_homepage(descript.homepage, name, args.namespace, version)
+   end
+
+   local directory = path.install_dir(name, version, repo)
+
+   local docdir
+   local directories = { "doc", "docs" }
+   for _, d in ipairs(directories) do
+      local dirname = dir.path(directory, d)
+      if fs.is_dir(dirname) then
+         docdir = dirname
+         break
+      end
+   end
+   if not docdir then
+      if descript.homepage and not args.list then
+         util.printout("Local documentation directory not found -- opening "..descript.homepage.." ...")
+         fs.browser(descript.homepage)
+         return true
+      end
+      return nil, "Documentation directory not found for "..name.." "..version
+   end
+
+   docdir = dir.normalize(docdir)
+   local files = fs.find(docdir)
+   local htmlpatt = "%.html?$"
+   local extensions = { htmlpatt, "%.md$", "%.txt$",  "%.textile$", "" }
+   local basenames = { "index", "readme", "manual" }
+
+   local porcelain = args.porcelain
+   if #files > 0 then
+      util.title("Documentation files for "..name.." "..version, porcelain)
+      if porcelain then
+         for _, file in ipairs(files) do
+            util.printout(docdir.."/"..file)
+         end
+      else
+         util.printout(docdir.."/")
+         for _, file in ipairs(files) do
+            util.printout("\t"..file)
+         end
+      end
+   end
+
+   if args.list then
+      return true
+   end
+
+   for _, extension in ipairs(extensions) do
+      for _, basename in ipairs(basenames) do
+         local filename = basename..extension
+         local found
+         for _, file in ipairs(files) do
+            if file:lower():match(filename) and ((not found) or #file < #found) then
+               found = file
+            end
+         end
+         if found then
+            local pathname = dir.path(docdir, found)
+            util.printout()
+            util.printout("Opening "..pathname.." ...")
+            util.printout()
+            local ok = fs.browser(pathname)
+            if not ok and not pathname:match(htmlpatt) then
+               local fd = io.open(pathname, "r")
+               util.printout(fd:read("*a"))
+               fd:close()
+            end
+            return true
+         end
+      end
+   end
+
+   return true
+end
+
+
+return doc
diff --git a/src/luarocks/cmd/download.lua b/src/luarocks/cmd/download.lua
new file mode 100644
index 0000000..eae8243
--- /dev/null
+++ b/src/luarocks/cmd/download.lua
@@ -0,0 +1,51 @@
+
+--- Module implementing the luarocks "download" command.
+-- Download a rock from the repository.
+local cmd_download = {}
+
+local util = require("luarocks.util")
+local download = require("luarocks.download")
+
+function cmd_download.add_to_parser(parser)
+   local cmd = parser:command("download", "Download a specific rock file from a rocks server.", util.see_also())
+
+   cmd:argument("name", "Name of the rock.")
+      :args("?")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Version of the rock.")
+      :args("?")
+
+   cmd:flag("--all", "Download all files if there are multiple matches.")
+   cmd:mutex(
+      cmd:flag("--source", "Download .src.rock if available."),
+      cmd:flag("--rockspec", "Download .rockspec if available."),
+      cmd:option("--arch", "Download rock for a specific architecture."))
+   cmd:flag("--check-lua-versions", "If the rock can't be found, check repository "..
+      "and report if it is available for another Lua version.")
+end
+
+--- Driver function for the "download" command.
+-- @return boolean or (nil, string): true if successful or nil followed
+-- by an error message.
+function cmd_download.command(args)
+   if not args.name and not args.all then
+      return nil, "Argument missing. "..util.see_help("download")
+   end
+
+   args.name = args.name or ""
+
+   local arch
+
+   if args.source then
+      arch = "src"
+   elseif args.rockspec then
+      arch = "rockspec"
+   elseif args.arch then
+      arch = args.arch
+   end
+
+   local dl, err = download.download(arch, args.name, args.namespace, args.version, args.all, args.check_lua_versions)
+   return dl and true, err
+end
+
+return cmd_download
diff --git a/src/luarocks/cmd/init.lua b/src/luarocks/cmd/init.lua
new file mode 100644
index 0000000..b5359c9
--- /dev/null
+++ b/src/luarocks/cmd/init.lua
@@ -0,0 +1,219 @@
+
+local init = {}
+
+local cfg = require("luarocks.core.cfg")
+local fs = require("luarocks.fs")
+local path = require("luarocks.path")
+local deps = require("luarocks.deps")
+local dir = require("luarocks.dir")
+local util = require("luarocks.util")
+local persist = require("luarocks.persist")
+local write_rockspec = require("luarocks.cmd.write_rockspec")
+
+function init.add_to_parser(parser)
+   local cmd = parser:command("init", "Initialize a directory for a Lua project using LuaRocks.", util.see_also())
+
+   cmd:argument("name", "The project name.")
+      :args("?")
+   cmd:argument("version", "An optional project version.")
+      :args("?")
+   cmd:option("--wrapper-dir", "Location where the 'lua' and 'luarocks' wrapper scripts " ..
+      "should be generated; if not given, the current directory is used as a default.")
+   cmd:flag("--reset", "Delete any .luarocks/config-5.x.lua and ./lua and generate new ones.")
+   cmd:flag("--no-wrapper-scripts", "Do not generate wrapper ./lua and ./luarocks launcher scripts.")
+   cmd:flag("--no-gitignore", "Do not generate a .gitignore file.")
+
+   cmd:group("Options for specifying rockspec data", write_rockspec.cmd_options(cmd))
+end
+
+local function gitignore_path(pwd, wrapper_dir, filename)
+   local norm_cur = fs.absolute_name(pwd)
+   local norm_file = fs.absolute_name(dir.path(wrapper_dir, filename))
+   if norm_file:sub(1, #norm_cur) == norm_cur then
+      return norm_file:sub(#norm_cur + 2)
+   else
+      return filename
+   end
+end
+
+local function write_gitignore(entries)
+   local gitignore = ""
+   local fd = io.open(".gitignore", "r")
+   if fd then
+      gitignore = fd:read("*a")
+      fd:close()
+      gitignore = "\n" .. gitignore .. "\n"
+   end
+
+   fd = io.open(".gitignore", gitignore and "a" or "w")
+   if fd then
+      for _, entry in ipairs(entries) do
+         entry = "/" .. entry
+         if not gitignore:find("\n"..entry.."\n", 1, true) then
+            fd:write(entry.."\n")
+         end
+      end
+      fd:close()
+   end
+end
+
+local function inject_tree(tree)
+   path.use_tree(tree)
+   local tree_set = false
+   for _, t in ipairs(cfg.rocks_trees) do
+      if type(t) == "table" then
+         if t.name == "project" then
+            t.root = tree
+            tree_set = true
+         end
+      end
+   end
+   if not tree_set then
+      table.insert(cfg.rocks_trees, 1, { name = "project", root = tree })
+   end
+end
+
+local function write_wrapper_scripts(wrapper_dir, luarocks_wrapper, lua_wrapper)
+   local tree = dir.path(fs.current_dir(), "lua_modules")
+
+   fs.make_dir(wrapper_dir)
+
+   luarocks_wrapper = dir.path(wrapper_dir, luarocks_wrapper)
+   if not fs.exists(luarocks_wrapper) then
+      util.printout("Preparing " .. luarocks_wrapper .. " ...")
+      fs.wrap_script(arg[0], luarocks_wrapper, "none", nil, nil, "--project-tree", tree)
+   else
+      util.printout(luarocks_wrapper .. " already exists. Not overwriting it!")
+   end
+
+   lua_wrapper = dir.path(wrapper_dir, lua_wrapper)
+   local write_lua_wrapper = true
+   if fs.exists(lua_wrapper) then
+      if not util.lua_is_wrapper(lua_wrapper) then
+         util.printout(lua_wrapper .. " already exists and does not look like a wrapper script. Not overwriting.")
+         write_lua_wrapper = false
+      end
+   end
+
+   if write_lua_wrapper then
+      if util.check_lua_version(cfg.variables.LUA, cfg.lua_version) then
+         util.printout("Preparing " .. lua_wrapper .. " for version " .. cfg.lua_version .. "...")
+
+         -- Inject tree so it shows up as a lookup path in the wrappers
+         inject_tree(tree)
+
+         fs.wrap_script(nil, lua_wrapper, "all")
+      else
+         util.warning("No Lua interpreter detected for version " .. cfg.lua_version .. ". Not creating " .. lua_wrapper)
+      end
+   end
+end
+
+--- Driver function for "init" command.
+-- @return boolean: True if succeeded, nil on errors.
+function init.command(args)
+   local do_gitignore = not args.no_gitignore
+   local do_wrapper_scripts = not args.no_wrapper_scripts
+   local wrapper_dir = args.wrapper_dir or "."
+
+   local pwd = fs.current_dir()
+
+   if not args.name then
+      args.name = dir.base_name(pwd)
+      if args.name == "/" then
+         return nil, "When running from the root directory, please specify the <name> argument"
+      end
+   end
+
+   util.title("Initializing project '" .. args.name .. "' for Lua " .. cfg.lua_version .. " ...")
+
+   local ok, err = deps.check_lua_incdir(cfg.variables)
+   if not ok then
+      return nil, err
+   end
+
+   local has_rockspec = false
+   for file in fs.dir() do
+      if file:match("%.rockspec$") then
+         has_rockspec = true
+         break
+      end
+   end
+
+   if not has_rockspec then
+      args.version = args.version or "dev"
+      args.location = pwd
+      local ok, err = write_rockspec.command(args)
+      if not ok then
+         util.printerr(err)
+      end
+   end
+
+   local ext = cfg.wrapper_suffix
+   local luarocks_wrapper = "luarocks" .. ext
+   local lua_wrapper = "lua" .. ext
+
+   if do_gitignore then
+      util.printout("Adding entries to .gitignore ...")
+      local ignores = { "lua_modules", ".luarocks" }
+      if do_wrapper_scripts then
+         table.insert(ignores, 1, gitignore_path(pwd, wrapper_dir, luarocks_wrapper))
+         table.insert(ignores, 2, gitignore_path(pwd, wrapper_dir, lua_wrapper))
+      end
+      write_gitignore(ignores)
+   end
+
+   util.printout("Preparing ./.luarocks/ ...")
+   fs.make_dir(".luarocks")
+   local config_file = ".luarocks/config-" .. cfg.lua_version .. ".lua"
+
+   if args.reset then
+      if do_wrapper_scripts then
+         fs.delete(fs.absolute_name(dir.path(wrapper_dir, lua_wrapper)))
+      end
+      fs.delete(fs.absolute_name(config_file))
+   end
+
+   local config_tbl, err = persist.load_config_file_if_basic(config_file, cfg)
+   if config_tbl then
+      local varnames = {
+         "LUA_DIR",
+         "LUA_INCDIR",
+         "LUA_LIBDIR",
+         "LUA_BINDIR",
+         "LUA",
+      }
+      for _, varname in ipairs(varnames) do
+         if cfg.variables[varname] then
+            config_tbl.variables = config_tbl.variables or {}
+            config_tbl.variables[varname] = cfg.variables[varname]
+         end
+      end
+      local ok, err = persist.save_from_table(config_file, config_tbl)
+      if ok then
+         util.printout("Wrote " .. config_file)
+      else
+         util.printout("Failed writing " .. config_file .. ": " .. err)
+      end
+   else
+      util.printout("Will not attempt to overwrite " .. config_file)
+   end
+
+   ok, err = persist.save_default_lua_version(".luarocks", cfg.lua_version)
+   if not ok then
+      util.printout("Failed setting default Lua version: " .. err)
+   end
+
+   util.printout("Preparing ./lua_modules/ ...")
+   fs.make_dir("lua_modules/lib/luarocks/rocks-" .. cfg.lua_version)
+
+   if do_wrapper_scripts then
+      write_wrapper_scripts(wrapper_dir, luarocks_wrapper, lua_wrapper)
+   end
+
+   return true
+end
+
+init.needs_lock = function() return true end
+
+return init
diff --git a/src/luarocks/cmd/install.lua b/src/luarocks/cmd/install.lua
new file mode 100644
index 0000000..05e31fe
--- /dev/null
+++ b/src/luarocks/cmd/install.lua
@@ -0,0 +1,271 @@
+--- Module implementing the LuaRocks "install" command.
+-- Installs binary rocks.
+local install = {}
+
+local dir = require("luarocks.dir")
+local path = require("luarocks.path")
+local repos = require("luarocks.repos")
+local fetch = require("luarocks.fetch")
+local util = require("luarocks.util")
+local fs = require("luarocks.fs")
+local deps = require("luarocks.deps")
+local writer = require("luarocks.manif.writer")
+local remove = require("luarocks.remove")
+local search = require("luarocks.search")
+local queries = require("luarocks.queries")
+local cfg = require("luarocks.core.cfg")
+
+function install.add_to_parser(parser)
+   local cmd = parser:command("install", "Install a rock.", util.see_also())  -- luacheck: ignore 431
+
+   cmd:argument("rock", "The name of a rock to be fetched from a repository "..
+      "or a filename of a locally available rock.")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Version of the rock.")
+      :args("?")
+
+   cmd:flag("--keep", "Do not remove previously installed versions of the "..
+      "rock after building a new one. This behavior can be made permanent by "..
+      "setting keep_other_versions=true in the configuration file.")
+   cmd:flag("--force", "If --keep is not specified, force removal of "..
+      "previously installed versions if it would break dependencies. "..
+      "If rock is already installed, reinstall it anyway.")
+   cmd:flag("--force-fast", "Like --force, but performs a forced removal "..
+      "without reporting dependency issues.")
+   cmd:flag("--only-deps --deps-only", "Install only the dependencies of the rock.")
+   cmd:flag("--no-doc", "Install the rock without its documentation.")
+   cmd:flag("--verify", "Verify signature of the rockspec or src.rock being "..
+      "built. If the rockspec or src.rock is being downloaded, LuaRocks will "..
+      "attempt to download the signature as well. Otherwise, the signature "..
+      "file should be already available locally in the same directory.\n"..
+      "You need the signer’s public key in your local keyring for this "..
+      "option to work properly.")
+   cmd:flag("--check-lua-versions", "If the rock can't be found, check repository "..
+      "and report if it is available for another Lua version.")
+   util.deps_mode_option(cmd)
+   cmd:flag("--no-manifest", "Skip creating/updating the manifest")
+   cmd:flag("--pin", "If the installed rock is a Lua module, create a "..
+      "luarocks.lock file listing the exact versions of each dependency found for "..
+      "this rock (recursively), and store it in the rock's directory. "..
+      "Ignores any existing luarocks.lock file in the rock's sources.")
+   -- luarocks build options
+   parser:flag("--pack-binary-rock"):hidden(true)
+   parser:option("--branch"):hidden(true)
+   parser:flag("--sign"):hidden(true)
+end
+
+install.opts = util.opts_table("install.opts", {
+   namespace = "string?",
+   keep = "boolean",
+   force = "boolean",
+   force_fast = "boolean",
+   no_doc = "boolean",
+   deps_mode = "string",
+   verify = "boolean",
+})
+
+--- Install a binary rock.
+-- @param rock_file string: local or remote filename of a rock.
+-- @param opts table: installation options
+-- @return (string, string) or (nil, string, [string]): Name and version of
+-- installed rock if succeeded or nil and an error message followed by an error code.
+function install.install_binary_rock(rock_file, opts)
+   assert(type(rock_file) == "string")
+   assert(opts:type() == "install.opts")
+
+   local namespace = opts.namespace
+   local deps_mode = opts.deps_mode
+
+   local name, version, arch = path.parse_name(rock_file)
+   if not name then
+      return nil, "Filename "..rock_file.." does not match format 'name-version-revision.arch.rock'."
+   end
+
+   if arch ~= "all" and arch ~= cfg.arch then
+      return nil, "Incompatible architecture "..arch, "arch"
+   end
+   if repos.is_installed(name, version) then
+      if not (opts.force or opts.force_fast) then
+         util.printout(name .. " " .. version .. " is already installed in " .. path.root_dir(cfg.root_dir))
+         util.printout("Use --force to reinstall.")
+         return name, version
+      end
+      repos.delete_version(name, version, opts.deps_mode)
+   end
+
+   local install_dir = path.install_dir(name, version)
+
+   local rollback = util.schedule_function(function()
+      fs.delete(install_dir)
+      fs.remove_dir_if_empty(path.versions_dir(name))
+   end)
+
+   local ok, err, errcode = fetch.fetch_and_unpack_rock(rock_file, install_dir, opts.verify)
+   if not ok then return nil, err, errcode end
+
+   local rockspec, err = fetch.load_rockspec(path.rockspec_file(name, version))
+   if err then
+      return nil, "Failed loading rockspec for installed package: "..err, errcode
+   end
+
+   if opts.deps_mode ~= "none" then
+      ok, err, errcode = deps.check_external_deps(rockspec, "install")
+      if err then return nil, err, errcode end
+   end
+
+   -- For compatibility with .rock files built with LuaRocks 1
+   if not fs.exists(path.rock_manifest_file(name, version)) then
+      ok, err = writer.make_rock_manifest(name, version)
+      if err then return nil, err end
+   end
+
+   if namespace then
+      ok, err = writer.make_namespace_file(name, version, namespace)
+      if err then return nil, err end
+   end
+
+   if deps_mode ~= "none" then
+      local deplock_dir = fs.exists(dir.path(".", "luarocks.lock"))
+                          and "."
+                          or install_dir
+      ok, err, errcode = deps.fulfill_dependencies(rockspec, "dependencies", deps_mode, opts.verify, deplock_dir)
+      if err then return nil, err, errcode end
+   end
+
+   ok, err = repos.deploy_files(name, version, repos.should_wrap_bin_scripts(rockspec), deps_mode)
+   if err then return nil, err end
+
+   util.remove_scheduled_function(rollback)
+   rollback = util.schedule_function(function()
+      repos.delete_version(name, version, deps_mode)
+   end)
+
+   ok, err = repos.run_hook(rockspec, "post_install")
+   if err then return nil, err end
+
+   util.announce_install(rockspec)
+   util.remove_scheduled_function(rollback)
+   return name, version
+end
+
+--- Installs the dependencies of a binary rock.
+-- @param rock_file string: local or remote filename of a rock.
+-- @param opts table: installation options
+-- @return (string, string) or (nil, string, [string]): Name and version of
+-- the rock whose dependencies were installed if succeeded or nil and an error message
+-- followed by an error code.
+function install.install_binary_rock_deps(rock_file, opts)
+   assert(type(rock_file) == "string")
+   assert(opts:type() == "install.opts")
+
+   local name, version, arch = path.parse_name(rock_file)
+   if not name then
+      return nil, "Filename "..rock_file.." does not match format 'name-version-revision.arch.rock'."
+   end
+
+   if arch ~= "all" and arch ~= cfg.arch then
+      return nil, "Incompatible architecture "..arch, "arch"
+   end
+
+   local install_dir = path.install_dir(name, version)
+
+   local ok, err, errcode = fetch.fetch_and_unpack_rock(rock_file, install_dir, opts.verify)
+   if not ok then return nil, err, errcode end
+
+   local rockspec, err = fetch.load_rockspec(path.rockspec_file(name, version))
+   if err then
+      return nil, "Failed loading rockspec for installed package: "..err, errcode
+   end
+
+   ok, err, errcode = deps.fulfill_dependencies(rockspec, "dependencies", opts.deps_mode, opts.verify, install_dir)
+   if err then return nil, err, errcode end
+
+   util.printout()
+   util.printout("Successfully installed dependencies for " ..name.." "..version)
+
+   return name, version
+end
+
+local function install_rock_file_deps(filename, opts)
+   assert(opts:type() == "install.opts")
+
+   local name, version = install.install_binary_rock_deps(filename, opts)
+   if not name then return nil, version end
+
+   writer.check_dependencies(nil, opts.deps_mode)
+   return name, version
+end
+
+local function install_rock_file(filename, opts)
+   assert(type(filename) == "string")
+   assert(opts:type() == "install.opts")
+
+   local name, version = install.install_binary_rock(filename, opts)
+   if not name then return nil, version end
+
+   if opts.no_doc then
+      util.remove_doc_dir(name, version)
+   end
+
+   if (not opts.keep) and not cfg.keep_other_versions then
+      local ok, err, warn = remove.remove_other_versions(name, version, opts.force, opts.force_fast)
+      if not ok then
+         return nil, err
+      elseif warn then
+         util.printerr(err)
+      end
+   end
+
+   writer.check_dependencies(nil, opts.deps_mode)
+   return name, version
+end
+
+--- Driver function for the "install" command.
+-- If an URL or pathname to a binary rock is given, fetches and installs it.
+-- If a rockspec or a source rock is given, forwards the request to the "build"
+-- command.
+-- If a package name is given, forwards the request to "search" and,
+-- if returned a result, installs the matching rock.
+-- @return boolean or (nil, string, exitcode): True if installation was
+-- successful, nil and an error message otherwise. exitcode is optionally returned.
+function install.command(args)
+   if args.rock:match("%.rockspec$") or args.rock:match("%.src%.rock$") then
+      local build = require("luarocks.cmd.build")
+      return build.command(args)
+   elseif args.rock:match("%.rock$") then
+      local deps_mode = deps.get_deps_mode(args)
+      local opts = install.opts({
+         namespace = args.namespace,
+         keep = not not args.keep,
+         force = not not args.force,
+         force_fast = not not args.force_fast,
+         no_doc = not not args.no_doc,
+         deps_mode = deps_mode,
+         verify = not not args.verify,
+      })
+      if args.only_deps then
+         return install_rock_file_deps(args.rock, opts)
+      else
+         return install_rock_file(args.rock, opts)
+      end
+   else
+      local url, err = search.find_rock_checking_lua_versions(
+                          queries.new(args.rock, args.namespace, args.version),
+                          args.check_lua_versions)
+      if not url then
+         return nil, err
+      end
+      util.printout("Installing "..url)
+      args.rock = url
+      return install.command(args)
+   end
+end
+
+install.needs_lock = function(args)
+   if args.pack_binary_rock then
+      return false
+   end
+   return true
+end
+
+return install
diff --git a/src/luarocks/cmd/lint.lua b/src/luarocks/cmd/lint.lua
new file mode 100644
index 0000000..738503c
--- /dev/null
+++ b/src/luarocks/cmd/lint.lua
@@ -0,0 +1,50 @@
+
+--- Module implementing the LuaRocks "lint" command.
+-- Utility function that checks syntax of the rockspec.
+local lint = {}
+
+local util = require("luarocks.util")
+local download = require("luarocks.download")
+local fetch = require("luarocks.fetch")
+
+function lint.add_to_parser(parser)
+   local cmd = parser:command("lint", "Check syntax of a rockspec.\n\n"..
+      "Returns success if the text of the rockspec is syntactically correct, else failure.",
+      util.see_also())
+      :summary("Check syntax of a rockspec.")
+
+   cmd:argument("rockspec", "The rockspec to check.")
+end
+
+function lint.command(args)
+
+   local filename = args.rockspec
+   if not filename:match(".rockspec$") then
+      local err
+      filename, err = download.download("rockspec", filename:lower())
+      if not filename then
+         return nil, err
+      end
+   end
+
+   local rs, err = fetch.load_local_rockspec(filename)
+   if not rs then
+      return nil, "Failed loading rockspec: "..err
+   end
+
+   local ok = true
+
+   -- This should have been done in the type checker,
+   -- but it would break compatibility of other commands.
+   -- Making 'lint' alone be stricter shouldn't be a problem,
+   -- because extra-strict checks is what lint-type commands
+   -- are all about.
+   if not rs.description or not rs.description.license then
+      util.printerr("Rockspec has no description.license field.")
+      ok = false
+   end
+
+   return ok, ok or filename.." failed consistency checks."
+end
+
+return lint
diff --git a/src/luarocks/cmd/list.lua b/src/luarocks/cmd/list.lua
new file mode 100644
index 0000000..7b2682f
--- /dev/null
+++ b/src/luarocks/cmd/list.lua
@@ -0,0 +1,96 @@
+
+--- Module implementing the LuaRocks "list" command.
+-- Lists currently installed rocks.
+local list = {}
+
+local search = require("luarocks.search")
+local queries = require("luarocks.queries")
+local vers = require("luarocks.core.vers")
+local cfg = require("luarocks.core.cfg")
+local util = require("luarocks.util")
+local path = require("luarocks.path")
+
+function list.add_to_parser(parser)
+   local cmd = parser:command("list", "List currently installed rocks.", util.see_also())
+
+   cmd:argument("filter", "A substring of a rock name to filter by.")
+      :args("?")
+   cmd:argument("version", "Rock version to filter by.")
+      :args("?")
+
+   cmd:flag("--outdated", "List only rocks for which there is a higher "..
+      "version available in the rocks server.")
+   cmd:flag("--porcelain", "Produce machine-friendly output.")
+end
+
+local function check_outdated(trees, query)
+   local results_installed = {}
+   for _, tree in ipairs(trees) do
+      search.local_manifest_search(results_installed, path.rocks_dir(tree), query)
+   end
+   local outdated = {}
+   for name, versions in util.sortedpairs(results_installed) do
+      versions = util.keys(versions)
+      table.sort(versions, vers.compare_versions)
+      local latest_installed = versions[1]
+
+      local query_available = queries.new(name:lower())
+      local results_available, err = search.search_repos(query_available)
+
+      if results_available[name] then
+         local available_versions = util.keys(results_available[name])
+         table.sort(available_versions, vers.compare_versions)
+         local latest_available = available_versions[1]
+         local latest_available_repo = results_available[name][latest_available][1].repo
+
+         if vers.compare_versions(latest_available, latest_installed) then
+            table.insert(outdated, { name = name, installed = latest_installed, available = latest_available, repo = latest_available_repo })
+         end
+      end
+   end
+   return outdated
+end
+
+local function list_outdated(trees, query, porcelain)
+   util.title("Outdated rocks:", porcelain)
+   local outdated = check_outdated(trees, query)
+   for _, item in ipairs(outdated) do
+      if porcelain then
+         util.printout(item.name, item.installed, item.available, item.repo)
+      else
+         util.printout(item.name)
+         util.printout("   "..item.installed.." < "..item.available.." at "..item.repo)
+         util.printout()
+      end
+   end
+   return true
+end
+
+--- Driver function for "list" command.
+-- @return boolean: True if succeeded, nil on errors.
+function list.command(args)
+   local query = queries.new(args.filter and args.filter:lower() or "", args.namespace, args.version, true)
+   local trees = cfg.rocks_trees
+   local title = "Rocks installed for Lua "..cfg.lua_version
+   if args.tree then
+      trees = { args.tree }
+      title = title .. " in " .. args.tree
+   end
+
+   if args.outdated then
+      return list_outdated(trees, query, args.porcelain)
+   end
+
+   local results = {}
+   for _, tree in ipairs(trees) do
+      local ok, err, errcode = search.local_manifest_search(results, path.rocks_dir(tree), query)
+      if not ok and errcode ~= "open" then
+         util.warning(err)
+      end
+   end
+   util.title(title, args.porcelain)
+   search.print_result_tree(results, args.porcelain)
+   return true
+end
+
+return list
diff --git a/src/luarocks/cmd/make.lua b/src/luarocks/cmd/make.lua
new file mode 100644
index 0000000..0b3db27
--- /dev/null
+++ b/src/luarocks/cmd/make.lua
@@ -0,0 +1,163 @@
+
+--- Module implementing the LuaRocks "make" command.
+-- Builds sources in the current directory, but unlike "build",
+-- it does not fetch sources, etc., assuming everything is
+-- available in the current directory.
+local make = {}
+
+local build = require("luarocks.build")
+local util = require("luarocks.util")
+local cfg = require("luarocks.core.cfg")
+local fetch = require("luarocks.fetch")
+local pack = require("luarocks.pack")
+local remove = require("luarocks.remove")
+local deps = require("luarocks.deps")
+local writer = require("luarocks.manif.writer")
+
+function make.cmd_options(parser)
+   parser:flag("--no-install", "Do not install the rock.")
+   parser:flag("--no-doc", "Install the rock without its documentation.")
+   parser:flag("--pack-binary-rock", "Do not install rock. Instead, produce a "..
+      ".rock file with the contents of compilation in the current directory.")
+   parser:flag("--keep", "Do not remove previously installed versions of the "..
+      "rock after building a new one. This behavior can be made permanent by "..
+      "setting keep_other_versions=true in the configuration file.")
+   parser:flag("--force", "If --keep is not specified, force removal of "..
+      "previously installed versions if it would break dependencies. "..
+      "If rock is already installed, reinstall it anyway.")
+   parser:flag("--force-fast", "Like --force, but performs a forced removal "..
+      "without reporting dependency issues.")
+   parser:flag("--verify", "Verify signature of the rockspec or src.rock being "..
+      "built. If the rockspec or src.rock is being downloaded, LuaRocks will "..
+      "attempt to download the signature as well. Otherwise, the signature "..
+      "file should be already available locally in the same directory.\n"..
+      "You need the signer’s public key in your local keyring for this "..
+      "option to work properly.")
+   parser:flag("--sign", "To be used with --pack-binary-rock. Also produce a "..
+      "signature file for the generated .rock file.")
+   parser:flag("--check-lua-versions", "If the rock can't be found, check repository "..
+      "and report if it is available for another Lua version.")
+   parser:flag("--pin", "Pin the exact dependencies used for the rockspec"..
+      "being built into a luarocks.lock file in the current directory.")
+   parser:flag("--no-manifest", "Skip creating/updating the manifest")
+   parser:flag("--only-deps --deps-only", "Install only the dependencies of the rock.")
+   util.deps_mode_option(parser)
+end
+
+function make.add_to_parser(parser)
+   -- luacheck: push ignore 431
+   local cmd = parser:command("make", [[
+Builds sources in the current directory, but unlike "build", it does not fetch
+sources, etc., assuming everything is available in the current directory. If no
+argument is given, it looks for a rockspec in the current directory and in
+"rockspec/" and "rockspecs/" subdirectories, picking the rockspec with newest
+version or without version name. If rockspecs for different rocks are found or
+there are several rockspecs without version, you must specify which to use,
+through the command-line.
+
+This command is useful as a tool for debugging rockspecs.
+To install rocks, you'll normally want to use the "install" and "build"
+commands. See the help on those for details.
+
+If the current directory contains a luarocks.lock file, it is used as the
+authoritative source for exact version of dependencies. The --pin flag
+overrides and recreates this file scanning dependency based on ranges.
+]], util.see_also())
+      :summary("Compile package in current directory using a rockspec.")
+   -- luacheck: pop
+
+   cmd:argument("rockspec", "Rockspec for the rock to build.")
+      :args("?")
+
+   make.cmd_options(cmd)
+end
+
+--- Driver function for "make" command.
+-- @return boolean or (nil, string, exitcode): True if build was successful; nil and an
+-- error message otherwise. exitcode is optionally returned.
+function make.command(args)
+   local rockspec_filename = args.rockspec
+   if not rockspec_filename then
+      local err
+      rockspec_filename, err = util.get_default_rockspec()
+      if not rockspec_filename then
+         return nil, err
+      end
+   end
+   if not rockspec_filename:match("rockspec$") then
+      return nil, "Invalid argument: 'make' takes a rockspec as a parameter. "..util.see_help("make")
+   end
+
+   local rockspec, err, errcode = fetch.load_rockspec(rockspec_filename)
+   if not rockspec then
+      return nil, err
+   end
+
+   local name, namespace = util.split_namespace(rockspec.name)
+   namespace = namespace or args.namespace
+
+   local opts = build.opts({
+      need_to_fetch = false,
+      minimal_mode = true,
+      deps_mode = deps.get_deps_mode(args),
+      build_only_deps = not not (args.only_deps and not args.pack_binary_rock),
+      namespace = namespace,
+      branch = args.branch,
+      verify = not not args.verify,
+      check_lua_versions = not not args.check_lua_versions,
+      pin = not not args.pin,
+      rebuild = true,
+      no_install = not not args.no_install
+   })
+
+   if args.sign and not args.pack_binary_rock then
+      return nil, "In the make command, --sign is meant to be used only with --pack-binary-rock"
+   end
+
+   if args.no_install then
+      return build.build_rockspec(rockspec, opts)
+   elseif args.pack_binary_rock then
+      return pack.pack_binary_rock(name, namespace, rockspec.version, args.sign, function()
+         local name, version = build.build_rockspec(rockspec, opts)  -- luacheck: ignore 431
+         if name and args.no_doc then
+            util.remove_doc_dir(name, version)
+         end
+         return name, version
+      end)
+   else
+      local ok, err = build.build_rockspec(rockspec, opts)
+      if not ok then return nil, err end
+      local name, version = ok, err  -- luacheck: ignore 421
+
+      if opts.build_only_deps then
+         util.printout("Stopping after installing dependencies for " ..name.." "..version)
+         util.printout()
+         return name, version
+      end
+
+      if args.no_doc then
+         util.remove_doc_dir(name, version)
+      end
+
+      if (not args.keep) and not cfg.keep_other_versions then
+         local ok, err, warn = remove.remove_other_versions(name, version, args.force, args.force_fast)
+         if not ok then
+            return nil, err
+         elseif warn then
+            util.printerr(warn)
+         end
+      end
+
+      writer.check_dependencies(nil, deps.get_deps_mode(args))
+      return name, version
+   end
+end
+
+make.needs_lock = function(args)
+   if args.pack_binary_rock or args.no_install then
+      return false
+   end
+   return true
+end
+
+return make
diff --git a/src/luarocks/cmd/new_version.lua b/src/luarocks/cmd/new_version.lua
new file mode 100644
index 0000000..ccba933
--- /dev/null
+++ b/src/luarocks/cmd/new_version.lua
@@ -0,0 +1,228 @@
+
+--- Module implementing the LuaRocks "new_version" command.
+-- Utility function that writes a new rockspec, updating data from a previous one.
+local new_version = {}
+
+local util = require("luarocks.util")
+local download = require("luarocks.download")
+local fetch = require("luarocks.fetch")
+local persist = require("luarocks.persist")
+local fs = require("luarocks.fs")
+local dir = require("luarocks.dir")
+local type_rockspec = require("luarocks.type.rockspec")
+
+function new_version.add_to_parser(parser)
+   local cmd = parser:command("new_version", [[
+This is a utility function that writes a new rockspec, updating data from a
+previous one.
+
+If a package name is given, it downloads the latest rockspec from the default
+server. If a rockspec is given, it uses it instead. If no argument is given, it
+looks for a rockspec same way 'luarocks make' does.
+
+If the version number is not given and tag is passed using --tag, it is used as
+the version, with 'v' removed from beginning.  Otherwise, it only increments the
+revision number of the given (or downloaded) rockspec.
+
+If a URL is given, it replaces the one from the old rockspec with the given URL.
+If a URL is not given and a new version is given, it tries to guess the new URL
+by replacing occurrences of the version number in the URL or tag; if the guessed
+URL is invalid, the old URL is restored. It also tries to download the new URL
+to determine the new MD5 checksum.
+
+If a tag is given, it replaces the one from the old rockspec. If there is an old
+tag but no new one passed, it is guessed in the same way URL is.
+
+If a directory is not given, it defaults to the current directory.
+
+WARNING: it writes the new rockspec to the given directory, overwriting the file
+if it already exists.]], util.see_also())
+      :summary("Auto-write a rockspec for a new version of a rock.")
+
+   cmd:argument("rock", "Package name or rockspec.")
+      :args("?")
+   cmd:argument("new_version", "New version of the rock.")
+      :args("?")
+   cmd:argument("new_url", "New URL of the rock.")
+      :args("?")
+
+   cmd:option("--dir", "Output directory for the new rockspec.")
+   cmd:option("--tag", "New SCM tag.")
+end
+
+
+local function try_replace(tbl, field, old, new)
+   if not tbl[field] then
+      return false
+   end
+   local old_field = tbl[field]
+   local new_field = tbl[field]:gsub(old, new)
+   if new_field ~= old_field then
+      util.printout("Guessing new '"..field.."' field as "..new_field)
+      tbl[field] = new_field
+      return true
+   end
+   return false
+end
+
+-- Try to download source file using URL from a rockspec.
+-- If it specified MD5, update it.
+-- @return (true, false) if MD5 was not specified or it stayed same,
+-- (true, true) if MD5 changed, (nil, string) on error.
+local function check_url_and_update_md5(out_rs, invalid_is_error)
+   local file, temp_dir = fetch.fetch_url_at_temp_dir(out_rs.source.url, "luarocks-new-version-"..out_rs.package)
+   if not file then
+      if invalid_is_error then
+         return nil, "invalid URL - "..temp_dir
+      end
+      util.warning("invalid URL - "..temp_dir)
+      return true, false
+   end
+   do
+      local inferred_dir, found_dir = fetch.find_base_dir(file, temp_dir, out_rs.source.url, out_rs.source.dir)
+      if not inferred_dir then
+         return nil, found_dir
+      end
+
+      if found_dir and found_dir ~= inferred_dir then
+         out_rs.source.dir = found_dir
+      end
+   end
+   if file then
+      if out_rs.source.md5 then
+         util.printout("File successfully downloaded. Updating MD5 checksum...")
+         local new_md5, err = fs.get_md5(file)
+         if not new_md5 then
+            return nil, err
+         end
+         local old_md5 = out_rs.source.md5
+         out_rs.source.md5 = new_md5
+         return true, new_md5 ~= old_md5
+      else
+         util.printout("File successfully downloaded.")
+         return true, false
+      end
+   end
+end
+
+local function update_source_section(out_rs, url, tag, old_ver, new_ver)
+   if tag then
+      out_rs.source.tag = tag
+   end
+   if url then
+      out_rs.source.url = url
+      return check_url_and_update_md5(out_rs)
+   end
+   if new_ver == old_ver then
+      return true
+   end
+   if out_rs.source.dir then
+      try_replace(out_rs.source, "dir", old_ver, new_ver)
+   end
+   if out_rs.source.file then
+      try_replace(out_rs.source, "file", old_ver, new_ver)
+   end
+
+   local old_url = out_rs.source.url
+   if try_replace(out_rs.source, "url", old_ver, new_ver) then
+      local ok, md5_changed = check_url_and_update_md5(out_rs, true)
+      if ok then
+         return ok, md5_changed
+      end
+      out_rs.source.url = old_url
+   end
+   if tag or try_replace(out_rs.source, "tag", old_ver, new_ver) then
+      return true
+   end
+   -- Couldn't replace anything significant, use the old URL.
+   local ok, md5_changed = check_url_and_update_md5(out_rs)
+   if not ok then
+      return nil, md5_changed
+   end
+   if md5_changed then
+      util.warning("URL is the same, but MD5 has changed. Old rockspec is broken.")
+   end
+   return true
+end
+
+function new_version.command(args)
+   if not args.rock then
+      local err
+      args.rock, err = util.get_default_rockspec()
+      if not args.rock then
+         return nil, err
+      end
+   end
+
+   local filename, err
+   if args.rock:match("rockspec$") then
+      filename, err = fetch.fetch_url(args.rock)
+      if not filename then
+         return nil, err
+      end
+   else
+      filename, err = download.download("rockspec", args.rock:lower())
+      if not filename then
+         return nil, err
+      end
+   end
+
+   local valid_rs, err = fetch.load_rockspec(filename)
+   if not valid_rs then
+      return nil, err
+   end
+
+   local old_ver, old_rev = valid_rs.version:match("(.*)%-(%d+)$")
+   local new_ver, new_rev
+
+   if args.tag and not args.new_version then
+      args.new_version = args.tag:gsub("^v", "")
+   end
+
+   local out_dir
+   if args.dir then
+      out_dir = dir.normalize(args.dir)
+   end
+
+   if args.new_version then
+      new_ver, new_rev = args.new_version:match("(.*)%-(%d+)$")
+      new_rev = tonumber(new_rev)
+      if not new_rev then
+         new_ver = args.new_version
+         new_rev = 1
+      end
+   else
+      new_ver = old_ver
+      new_rev = tonumber(old_rev) + 1
+   end
+   local new_rockver = new_ver:gsub("-", "")
+
+   local out_rs, err = persist.load_into_table(filename)
+   local out_name = out_rs.package:lower()
+   out_rs.version = new_rockver.."-"..new_rev
+
+   local ok, err = update_source_section(out_rs, args.new_url, args.tag, old_ver, new_ver)
+   if not ok then return nil, err end
+
+   if out_rs.build and out_rs.build.type == "module" then
+      out_rs.build.type = "builtin"
+   end
+
+   local out_filename = out_name.."-"..new_rockver.."-"..new_rev..".rockspec"
+   if out_dir then
+      out_filename = dir.path(out_dir, out_filename)
+      fs.make_dir(out_dir)
+   end
+   persist.save_from_table(out_filename, out_rs, type_rockspec.order)
+
+   util.printout("Wrote "..out_filename)
+
+   local valid_out_rs, err = fetch.load_local_rockspec(out_filename)
+   if not valid_out_rs then
+      return nil, "Failed loading generated rockspec: "..err
+   end
+
+   return true
+end
+
+return new_version
diff --git a/src/luarocks/cmd/pack.lua b/src/luarocks/cmd/pack.lua
new file mode 100644
index 0000000..29a43e7
--- /dev/null
+++ b/src/luarocks/cmd/pack.lua
@@ -0,0 +1,36 @@
+
+--- Module implementing the LuaRocks "pack" command.
+-- Creates a rock, packing sources or binaries.
+local cmd_pack = {}
+
+local util = require("luarocks.util")
+local pack = require("luarocks.pack")
+local queries = require("luarocks.queries")
+
+function cmd_pack.add_to_parser(parser)
+   local cmd = parser:command("pack", "Create a rock, packing sources or binaries.", util.see_also())
+
+   cmd:argument("rock", "A rockspec file, for creating a source rock, or the "..
+      "name of an installed package, for creating a binary rock.")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "A version may be given if the first argument is a rock name.")
+      :args("?")
+
+   cmd:flag("--sign", "Produce a signature file as well.")
+end
+
+--- Driver function for the "pack" command.
+-- @return boolean or (nil, string): true if successful or nil followed
+-- by an error message.
+function cmd_pack.command(args)
+   local file, err
+   if args.rock:match(".*%.rockspec") then
+      file, err = pack.pack_source_rock(args.rock)
+   else
+      local query = queries.new(args.rock, args.namespace, args.version)
+      file, err = pack.pack_installed_rock(query, args.tree)
+   end
+   return pack.report_and_sign_local_file(file, err, args.sign)
+end
+
+return cmd_pack
diff --git a/src/luarocks/cmd/path.lua b/src/luarocks/cmd/path.lua
new file mode 100644
index 0000000..ba34655
--- /dev/null
+++ b/src/luarocks/cmd/path.lua
@@ -0,0 +1,83 @@
+
+--- @module luarocks.path_cmd
+-- Driver for the `luarocks path` command.
+local path_cmd = {}
+
+local util = require("luarocks.util")
+local cfg = require("luarocks.core.cfg")
+local fs = require("luarocks.fs")
+
+function path_cmd.add_to_parser(parser)
+   local cmd = parser:command("path", [[
+Returns the package path currently configured for this installation
+of LuaRocks, formatted as shell commands to update LUA_PATH and LUA_CPATH.
+
+On Unix systems, you may run:
+  eval `luarocks path`
+And on Windows:
+  luarocks path > "%temp%\_lrp.bat"
+  call "%temp%\_lrp.bat" && del "%temp%\_lrp.bat"]],
+  util.see_also())
+      :summary("Return the currently configured package path.")
+
+   cmd:flag("--no-bin", "Do not export the PATH variable.")
+   cmd:flag("--append", "Appends the paths to the existing paths. Default is "..
+      "to prefix the LR paths to the existing paths.")
+   cmd:flag("--lr-path", "Prints Lua path components defined by the configured rocks trees " ..
+      "(not formatted as a shell command)")
+   cmd:flag("--lr-cpath", "Prints Lua cpath components defined by the configured rocks trees " ..
+      "(not formatted as a shell command)")
+   cmd:flag("--full", "By default, --lr-path and --lr-cpath only include the paths " ..
+      "derived by the LuaRocks rocks_trees. Using --full includes any other components " ..
+      "defined in your system's package.(c)path, either via the running interpreter's " ..
+      "default paths or via LUA_(C)PATH(_5_x) environment variables (in short, using " ..
+      "--full produces the same lists as shown in the shell outputs of 'luarocks path').")
+   cmd:flag("--lr-bin", "Exports the system path (not formatted as shell command).")
+   cmd:flag("--bin"):hidden(true)
+end
+
+--- Driver function for "path" command.
+-- @return boolean This function always succeeds.
+function path_cmd.command(args)
+   local lr_path, lr_cpath, lr_bin = cfg.package_paths(args.tree)
+   local path_sep = cfg.export_path_separator
+
+   local full_list = ((not args.lr_path) and (not args.lr_cpath) and (not args.lr_bin))
+                     or args.full
+
+   local clean_path = util.cleanup_path(os.getenv("PATH") or "", path_sep, nil, true)
+
+   if full_list then
+      if args.append then
+         lr_path = package.path .. ";" .. lr_path
+         lr_cpath = package.cpath .. ";" .. lr_cpath
+         lr_bin = clean_path .. path_sep .. lr_bin
+      else
+         lr_path =  lr_path.. ";" .. package.path
+         lr_cpath = lr_cpath .. ";" .. package.cpath
+         lr_bin = lr_bin .. path_sep .. clean_path
+      end
+   end
+
+   if args.lr_path then
+      util.printout(util.cleanup_path(lr_path, ';', cfg.lua_version, true))
+      return true
+   elseif args.lr_cpath then
+      util.printout(util.cleanup_path(lr_cpath, ';', cfg.lua_version, true))
+      return true
+   elseif args.lr_bin then
+      util.printout(util.cleanup_path(lr_bin, path_sep, nil, true))
+      return true
+   end
+
+   local lpath_var, lcpath_var = util.lua_path_variables()
+
+   util.printout(fs.export_cmd(lpath_var, util.cleanup_path(lr_path, ';', cfg.lua_version, args.append)))
+   util.printout(fs.export_cmd(lcpath_var, util.cleanup_path(lr_cpath, ';', cfg.lua_version, args.append)))
+   if not args.no_bin then
+      util.printout(fs.export_cmd("PATH", util.cleanup_path(lr_bin, path_sep, nil, args.append)))
+   end
+   return true
+end
+
+return path_cmd
diff --git a/src/luarocks/cmd/purge.lua b/src/luarocks/cmd/purge.lua
new file mode 100644
index 0000000..30811dd
--- /dev/null
+++ b/src/luarocks/cmd/purge.lua
@@ -0,0 +1,73 @@
+
+--- Module implementing the LuaRocks "purge" command.
+-- Remove all rocks from a given tree.
+local purge = {}
+
+local util = require("luarocks.util")
+local path = require("luarocks.path")
+local search = require("luarocks.search")
+local vers = require("luarocks.core.vers")
+local repos = require("luarocks.repos")
+local writer = require("luarocks.manif.writer")
+local cfg = require("luarocks.core.cfg")
+local remove = require("luarocks.remove")
+local queries = require("luarocks.queries")
+
+function purge.add_to_parser(parser)
+   -- luacheck: push ignore 431
+   local cmd = parser:command("purge", [[
+This command removes rocks en masse from a given tree.
+By default, it removes all rocks from a tree.
+
+The --tree option is mandatory: luarocks purge does not assume a default tree.]],
+   util.see_also())
+      :summary("Remove all installed rocks from a tree.")
+   -- luacheck: pop
+
+   cmd:flag("--old-versions", "Keep the highest-numbered version of each "..
+      "rock and remove the other ones. By default it only removes old "..
+      "versions if they are not needed as dependencies. This can be "..
+      "overridden with the flag --force.")
+   cmd:flag("--force", "If --old-versions is specified, force removal of "..
+      "previously installed versions if it would break dependencies.")
+   cmd:flag("--force-fast", "Like --force, but performs a forced removal "..
+      "without reporting dependency issues.")
+end
+
+function purge.command(args)
+   local tree = args.tree
+
+   local results = {}
+   search.local_manifest_search(results, path.rocks_dir(tree), queries.all())
+
+   local sort = function(a,b) return vers.compare_versions(b,a) end
+   if args.old_versions then
+      sort = vers.compare_versions
+   end
+
+   for package, versions in util.sortedpairs(results) do
+      for version, _ in util.sortedpairs(versions, sort) do
+         if args.old_versions then
+            util.printout("Keeping "..package.." "..version.."...")
+            local ok, err, warn = remove.remove_other_versions(package, version, args.force, args.force_fast)
+            if not ok then
+               util.printerr(err)
+            elseif warn then
+               util.printerr(err)
+            end
+            break
+         else
+            util.printout("Removing "..package.." "..version.."...")
+            local ok, err = repos.delete_version(package, version, "none", true)
+            if not ok then
+               util.printerr(err)
+            end
+         end
+      end
+   end
+   return writer.make_manifest(cfg.rocks_dir, "one")
+end
+
+purge.needs_lock = function() return true end
+
+return purge
diff --git a/src/luarocks/cmd/remove.lua b/src/luarocks/cmd/remove.lua
new file mode 100644
index 0000000..8b11bcd
--- /dev/null
+++ b/src/luarocks/cmd/remove.lua
@@ -0,0 +1,72 @@
+
+--- Module implementing the LuaRocks "remove" command.
+-- Uninstalls rocks.
+local cmd_remove = {}
+
+local remove = require("luarocks.remove")
+local util = require("luarocks.util")
+local cfg = require("luarocks.core.cfg")
+local search = require("luarocks.search")
+local path = require("luarocks.path")
+local deps = require("luarocks.deps")
+local writer = require("luarocks.manif.writer")
+local queries = require("luarocks.queries")
+
+function cmd_remove.add_to_parser(parser)
+   -- luacheck: push ignore 431
+   local cmd = parser:command("remove", [[
+Uninstall a rock.
+
+If a version is not given, try to remove all versions at once.
+Will only perform the removal if it does not break dependencies.
+To override this check and force the removal, use --force or --force-fast.]],
+   util.see_also())
+      :summary("Uninstall a rock.")
+   -- luacheck: pop
+
+   cmd:argument("rock", "Name of the rock to be uninstalled.")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Version of the rock to uninstall.")
+      :args("?")
+
+   cmd:flag("--force", "Force removal if it would break dependencies.")
+   cmd:flag("--force-fast", "Perform a forced removal without reporting dependency issues.")
+   util.deps_mode_option(cmd)
+end
+
+--- Driver function for the "remove" command.
+-- @return boolean or (nil, string, exitcode): True if removal was
+-- successful, nil and an error message otherwise. exitcode is optionally returned.
+function cmd_remove.command(args)
+   local name = args.rock
+   local deps_mode = deps.get_deps_mode(args)
+
+   local rock_type = name:match("%.(rock)$") or name:match("%.(rockspec)$")
+   local version = args.version
+   local filename = name
+   if rock_type then
+      name, version = path.parse_name(filename)
+      if not name then return nil, "Invalid "..rock_type.." filename: "..filename end
+   end
+
+   name = name:lower()
+
+   local results = {}
+   search.local_manifest_search(results, cfg.rocks_dir, queries.new(name, args.namespace, version))
+   if not results[name] then
+      local rock = util.format_rock_name(name, args.namespace, version)
+      return nil, "Could not find rock '"..rock.."' in "..path.rocks_tree_to_string(cfg.root_dir)
+   end
+
+   local ok, err = remove.remove_search_results(results, name, deps_mode, args.force, args.force_fast)
+   if not ok then
+      return nil, err
+   end
+
+   writer.check_dependencies(nil, deps.get_deps_mode(args))
+   return true
+end
+
+cmd_remove.needs_lock = function() return true end
+
+return cmd_remove
diff --git a/src/luarocks/cmd/search.lua b/src/luarocks/cmd/search.lua
new file mode 100644
index 0000000..6cab6d8
--- /dev/null
+++ b/src/luarocks/cmd/search.lua
@@ -0,0 +1,84 @@
+
+--- Module implementing the LuaRocks "search" command.
+-- Queries LuaRocks servers.
+local cmd_search = {}
+
+local cfg = require("luarocks.core.cfg")
+local util = require("luarocks.util")
+local search = require("luarocks.search")
+local queries = require("luarocks.queries")
+local results = require("luarocks.results")
+
+function cmd_search.add_to_parser(parser)
+   local cmd = parser:command("search", "Query the LuaRocks servers.", util.see_also())
+
+   cmd:argument("name", "Name of the rock to search for.")
+      :args("?")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Rock version to search for.")
+      :args("?")
+
+   cmd:flag("--source", "Return only rockspecs and source rocks, to be used "..
+      'with the "build" command.')
+   cmd:flag("--binary", "Return only pure Lua and binary rocks (rocks that "..
+      'can be used with the "install" command without requiring a C toolchain).')
+   cmd:flag("--all", "List all contents of the server that are suitable to "..
+      "this platform, do not filter by name.")
+   cmd:flag("--porcelain", "Return a machine readable format.")
+end
+
+--- Splits a list of search results into two lists, one for "source" results
+-- to be used with the "build" command, and one for "binary" results to be
+-- used with the "install" command.
+-- @param result_tree table: A search results table.
+-- @return (table, table): Two tables, one for source and one for binary
+-- results.
+local function split_source_and_binary_results(result_tree)
+   local sources, binaries = {}, {}
+   for name, versions in pairs(result_tree) do
+      for version, repositories in pairs(versions) do
+         for _, repo in ipairs(repositories) do
+            local where = sources
+            if repo.arch == "all" or repo.arch == cfg.arch then
+               where = binaries
+            end
+            local entry = results.new(name, version, repo.repo, repo.arch)
+            search.store_result(where, entry)
+         end
+      end
+   end
+   return sources, binaries
+end
+
+--- Driver function for "search" command.
+-- @return boolean or (nil, string): True if build was successful; nil and an
+-- error message otherwise.
+function cmd_search.command(args)
+   local name = args.name
+
+   if args.all then
+      name, args.version = "", nil
+   end
+
+   if not args.name and not args.all then
+      return nil, "Enter name and version or use --all. "..util.see_help("search")
+   end
+
+   local query = queries.new(name, args.namespace, args.version, true)
+   local result_tree, err = search.search_repos(query)
+   local porcelain = args.porcelain
+   local full_name = util.format_rock_name(name, args.namespace, args.version)
+   util.title(full_name .. " - Search results for Lua "..cfg.lua_version..":", porcelain, "=")
+   local sources, binaries = split_source_and_binary_results(result_tree)
+   if next(sources) and not args.binary then
+      util.title("Rockspecs and source rocks:", porcelain)
+      search.print_result_tree(sources, porcelain)
+   end
+   if next(binaries) and not args.source then
+      util.title("Binary and pure-Lua rocks:", porcelain)
+      search.print_result_tree(binaries, porcelain)
+   end
+   return true
+end
+
+return cmd_search
diff --git a/src/luarocks/cmd/show.lua b/src/luarocks/cmd/show.lua
new file mode 100644
index 0000000..88cbbad
--- /dev/null
+++ b/src/luarocks/cmd/show.lua
@@ -0,0 +1,314 @@
+--- Module implementing the LuaRocks "show" command.
+-- Shows information about an installed rock.
+local show = {}
+
+local queries = require("luarocks.queries")
+local search = require("luarocks.search")
+local dir = require("luarocks.core.dir")
+local fs = require("luarocks.fs")
+local cfg = require("luarocks.core.cfg")
+local util = require("luarocks.util")
+local path = require("luarocks.path")
+local fetch = require("luarocks.fetch")
+local manif = require("luarocks.manif")
+local repos = require("luarocks.repos")
+
+function show.add_to_parser(parser)
+   local cmd = parser:command("show", [[
+Show information about an installed rock.
+
+Without any flags, show all module information.
+With flags, return only the desired information.]], util.see_also())
+      :summary("Show information about an installed rock.")
+
+   cmd:argument("rock", "Name of an installed rock.")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Rock version.")
+      :args("?")
+
+   cmd:flag("--home", "Show home page of project.")
+   cmd:flag("--modules", "Show all modules provided by the package as used by require().")
+   cmd:flag("--deps", "Show packages the package depends on.")
+   cmd:flag("--build-deps", "Show build-only dependencies for the package.")
+   cmd:flag("--test-deps", "Show dependencies for testing the package.")
+   cmd:flag("--rockspec", "Show the full path of the rockspec file.")
+   cmd:flag("--mversion", "Show the package version.")
+   cmd:flag("--rock-tree", "Show local tree where rock is installed.")
+   cmd:flag("--rock-namespace", "Show rock namespace.")
+   cmd:flag("--rock-dir", "Show data directory of the installed rock.")
+   cmd:flag("--rock-license", "Show rock license.")
+   cmd:flag("--issues", "Show URL for project's issue tracker.")
+   cmd:flag("--labels", "List the labels of the rock.")
+   cmd:flag("--porcelain", "Produce machine-friendly output.")
+end
+
+local friendly_template = [[
+          :
+?namespace:${namespace}/${package} ${version} - ${summary}
+!namespace:${package} ${version} - ${summary}
+          :
+*detailed :${detailed}
+?detailed :
+?license  :License:      \t${license}
+?homepage :Homepage:     \t${homepage}
+?issues   :Issues:       \t${issues}
+?labels   :Labels:       \t${labels}
+?location :Installed in: \t${location}
+?commands :
+?commands :Commands:
+*commands :\t${name} (${file})
+?modules  :
+?modules  :Modules:
+*modules  :\t${name} (${file})
+?bdeps    :
+?bdeps    :Has build dependency on:
+*bdeps    :\t${name} (${label})
+?tdeps    :
+?tdeps    :Tests depend on:
+*tdeps    :\t${name} (${label})
+?deps     :
+?deps     :Depends on:
+*deps     :\t${name} (${label})
+?ideps    :
+?ideps    :Indirectly pulling:
+*ideps    :\t${name} (${label})
+          :
+]]
+
+local porcelain_template = [[
+?namespace:namespace\t${namespace}
+?package  :package\t${package}
+?version  :version\t${version}
+?summary  :summary\t${summary}
+*detailed :detailed\t${detailed}
+?license  :license\t${license}
+?homepage :homepage\t${homepage}
+?issues   :issues\t${issues}
+?labels   :labels\t${labels}
+?location :location\t${location}
+*commands :command\t${name}\t${file}
+*modules  :module\t${name}\t${file}
+*bdeps    :build_dependency\t${name}\t${label}
+*tdeps    :test_dependency\t${name}\t${label}
+*deps     :dependency\t${name}\t${label}
+*ideps    :indirect_dependency\t${name}\t${label}
+]]
+
+local function keys_as_string(t, sep)
+   local keys = util.keys(t)
+   table.sort(keys)
+   return table.concat(keys, sep or " ")
+end
+
+local function word_wrap(line)
+   local width = tonumber(os.getenv("COLUMNS")) or 80
+   if width > 80 then width = 80 end
+   if #line > width then
+      local brk = width
+      while brk > 0 and line:sub(brk, brk) ~= " " do
+         brk = brk - 1
+      end
+      if brk > 0 then
+         return line:sub(1, brk-1) .. "\n" .. word_wrap(line:sub(brk+1))
+      end
+   end
+   return line
+end
+
+local function format_text(text)
+   text = text:gsub("^%s*",""):gsub("%s$", ""):gsub("\n[ \t]+","\n"):gsub("([^\n])\n([^\n])","%1 %2")
+   local paragraphs = util.split_string(text, "\n\n")
+   for n, line in ipairs(paragraphs) do
+      paragraphs[n] = word_wrap(line)
+   end
+   return (table.concat(paragraphs, "\n\n"):gsub("%s$", ""))
+end
+
+local function installed_rock_label(dep, tree)
+   local installed, version
+   local rocks_provided = util.get_rocks_provided()
+   if rocks_provided[dep.name] then
+      installed, version = true, rocks_provided[dep.name]
+   else
+      installed, version = search.pick_installed_rock(dep, tree)
+   end
+   return installed and "using "..version or "missing"
+end
+
+local function render(template, data)
+   local out = {}
+   for cmd, var, line in template:gmatch("(.)([a-z]*)%s*:([^\n]*)\n") do
+      line = line:gsub("\\t", "\t")
+      local d = data[var]
+      if cmd == " " then
+         table.insert(out, line)
+      elseif cmd == "?" or cmd == "*" or cmd == "!" then
+         if (cmd == "!" and d == nil)
+             or (cmd ~= "!" and (type(d) == "string"
+                                 or (type(d) == "table" and next(d)))) then
+            local n = cmd == "*" and #d or 1
+            for i = 1, n do
+               local tbl = cmd == "*" and d[i] or data
+               if type(tbl) == "string" then
+                  tbl = tbl:gsub("%%", "%%%%")
+               end
+               table.insert(out, (line:gsub("${([a-z]+)}", tbl)))
+            end
+         end
+      end
+   end
+   return table.concat(out, "\n")
+end
+
+local function adjust_path(name, version, basedir, pathname, suffix)
+   pathname = dir.path(basedir, pathname)
+   local vpathname = path.versioned_name(pathname, basedir, name, version)
+   return (fs.exists(vpathname)
+          and vpathname
+          or pathname) .. (suffix or "")
+end
+
+local function modules_to_list(name, version, repo)
+   local ret = {}
+   local rock_manifest = manif.load_rock_manifest(name, version, repo)
+
+   local lua_dir = path.deploy_lua_dir(repo)
+   local lib_dir = path.deploy_lib_dir(repo)
+   repos.recurse_rock_manifest_entry(rock_manifest.lua, function(pathname)
+      table.insert(ret, {
+         name = path.path_to_module(pathname),
+         file = adjust_path(name, version, lua_dir, pathname),
+      })
+   end)
+   repos.recurse_rock_manifest_entry(rock_manifest.lib, function(pathname)
+      table.insert(ret, {
+         name = path.path_to_module(pathname),
+         file = adjust_path(name, version, lib_dir, pathname),
+      })
+   end)
+   table.sort(ret, function(a, b)
+      if a.name == b.name then
+         return a.file < b.file
+      end
+      return a.name < b.name
+   end)
+   return ret
+end
+
+local function commands_to_list(name, version, repo)
+   local ret = {}
+   local rock_manifest = manif.load_rock_manifest(name, version, repo)
+
+   local bin_dir = path.deploy_bin_dir(repo)
+   repos.recurse_rock_manifest_entry(rock_manifest.bin, function(pathname)
+      table.insert(ret, {
+         name = name,
+         file = adjust_path(name, version, bin_dir, pathname, cfg.wrapper_suffix),
+      })
+   end)
+   table.sort(ret, function(a, b)
+      if a.name == b.name then
+         return a.file < b.file
+      end
+      return a.name < b.name
+   end)
+   return ret
+end
+
+local function deps_to_list(dependencies, tree)
+   local ret = {}
+   for _, dep in ipairs(dependencies or {}) do
+      table.insert(ret, { name = tostring(dep), label = installed_rock_label(dep, tree) })
+   end
+   return ret
+end
+
+local function indirect_deps(mdeps, rdeps, tree)
+   local ret = {}
+   local direct_deps = {}
+   for _, dep in ipairs(rdeps) do
+      direct_deps[dep] = true
+   end
+   for dep_name in util.sortedpairs(mdeps or {}) do
+      if not direct_deps[dep_name] then
+         table.insert(ret, { name = tostring(dep_name), label = installed_rock_label(queries.new(dep_name), tree) })
+      end
+   end
+   return ret
+end
+
+local function show_rock(template, namespace, name, version, rockspec, repo, minfo, tree)
+   local desc = rockspec.description or {}
+   local data = {
+      namespace = namespace,
+      package = rockspec.package,
+      version = rockspec.version,
+      summary = desc.summary or "",
+      detailed = desc.detailed and util.split_string(format_text(desc.detailed), "\n"),
+      license = desc.license,
+      homepage = desc.homepage,
+      issues = desc.issues_url,
+      labels = desc.labels and table.concat(desc.labels, ", "),
+      location = path.rocks_tree_to_string(repo),
+      commands = commands_to_list(name, version, repo),
+      modules = modules_to_list(name, version, repo),
+      bdeps = deps_to_list(rockspec.build_dependencies, tree),
+      tdeps = deps_to_list(rockspec.test_dependencies, tree),
+      deps = deps_to_list(rockspec.dependencies, tree),
+      ideps = indirect_deps(minfo.dependencies, rockspec.dependencies, tree),
+   }
+   util.printout(render(template, data))
+end
+
+--- Driver function for "show" command.
+-- @return boolean: True if succeeded, nil on errors.
+function show.command(args)
+   local query = queries.new(args.rock, args.namespace, args.version, true)
+
+   local name, version, repo, repo_url = search.pick_installed_rock(query, args.tree)
+   if not name then
+      return nil, version
+   end
+   local tree = path.rocks_tree_to_string(repo)
+   local directory = path.install_dir(name, version, repo)
+   local namespace = path.read_namespace(name, version, tree)
+   local rockspec_file = path.rockspec_file(name, version, repo)
+   local rockspec, err = fetch.load_local_rockspec(rockspec_file)
+   if not rockspec then return nil,err end
+
+   local descript = rockspec.description or {}
+   local manifest, err = manif.load_manifest(repo_url)
+   if not manifest then return nil,err end
+   local minfo = manifest.repository[name][version][1]
+
+   if args.rock_tree then util.printout(tree)
+   elseif args.rock_namespace then util.printout(namespace)
+   elseif args.rock_dir then util.printout(directory)
+   elseif args.home then util.printout(descript.homepage)
+   elseif args.rock_license then util.printout(descript.license)
+   elseif args.issues then util.printout(descript.issues_url)
+   elseif args.labels then util.printout(descript.labels and table.concat(descript.labels, "\n"))
+   elseif args.modules then util.printout(keys_as_string(minfo.modules, "\n"))
+   elseif args.deps then
+      for _, dep in ipairs(rockspec.dependencies) do
+         util.printout(tostring(dep))
+      end
+   elseif args.build_deps then
+      for _, dep in ipairs(rockspec.build_dependencies) do
+         util.printout(tostring(dep))
+      end
+   elseif args.test_deps then
+      for _, dep in ipairs(rockspec.test_dependencies) do
+         util.printout(tostring(dep))
+      end
+   elseif args.rockspec then util.printout(rockspec_file)
+   elseif args.mversion then util.printout(version)
+   elseif args.porcelain then
+      show_rock(porcelain_template, namespace, name, version, rockspec, repo, minfo, args.tree)
+   else
+      show_rock(friendly_template, namespace, name, version, rockspec, repo, minfo, args.tree)
+   end
+   return true
+end
+
+return show
diff --git a/src/luarocks/cmd/test.lua b/src/luarocks/cmd/test.lua
new file mode 100644
index 0000000..b353bd8
--- /dev/null
+++ b/src/luarocks/cmd/test.lua
@@ -0,0 +1,48 @@
+
+--- Module implementing the LuaRocks "test" command.
+-- Tests a rock, compiling its C parts if any.
+local cmd_test = {}
+
+local util = require("luarocks.util")
+local test = require("luarocks.test")
+
+function cmd_test.add_to_parser(parser)
+   local cmd = parser:command("test", [[
+Run the test suite for the Lua project in the current directory.
+
+If the first argument is a rockspec, it will use it to determine the parameters
+for running tests; otherwise, it will attempt to detect the rockspec.
+
+Any additional arguments are forwarded to the test suite.
+To make sure that test suite flags are not interpreted as LuaRocks flags, use --
+to separate LuaRocks arguments from test suite arguments.]],
+      util.see_also())
+      :summary("Run the test suite in the current directory.")
+
+   cmd:argument("rockspec", "Project rockspec.")
+      :args("?")
+   cmd:argument("args", "Test suite arguments.")
+      :args("*")
+   cmd:flag("--prepare", "Only install dependencies needed for testing only, but do not run the test")
+
+   cmd:option("--test-type", "Specify the test suite type manually if it was "..
+      "not specified in the rockspec and it could not be auto-detected.")
+      :argname("<type>")
+end
+
+function cmd_test.command(args)
+   if args.rockspec and args.rockspec:match("rockspec$") then
+      return test.run_test_suite(args.rockspec, args.test_type, args.args, args.prepare)
+   end
+
+   table.insert(args.args, 1, args.rockspec)
+
+   local rockspec, err = util.get_default_rockspec()
+   if not rockspec then
+      return nil, err
+   end
+
+   return test.run_test_suite(rockspec, args.test_type, args.args, args.prepare)
+end
+
+return cmd_test
diff --git a/src/luarocks/cmd/unpack.lua b/src/luarocks/cmd/unpack.lua
new file mode 100644
index 0000000..a0ade4f
--- /dev/null
+++ b/src/luarocks/cmd/unpack.lua
@@ -0,0 +1,169 @@
+
+--- Module implementing the LuaRocks "unpack" command.
+-- Unpack the contents of a rock.
+local unpack = {}
+
+local fetch = require("luarocks.fetch")
+local fs = require("luarocks.fs")
+local util = require("luarocks.util")
+local build = require("luarocks.build")
+local dir = require("luarocks.dir")
+local search = require("luarocks.search")
+
+function unpack.add_to_parser(parser)
+   local cmd = parser:command("unpack", [[
+Unpacks the contents of a rock in a newly created directory.
+Argument may be a rock file, or the name of a rock in a rocks server.
+In the latter case, the rock version may be given as a second argument.]],
+      util.see_also())
+      :summary("Unpack the contents of a rock.")
+
+   cmd:argument("rock", "A rock file or the name of a rock.")
+      :action(util.namespaced_name_action)
+   cmd:argument("version", "Rock version.")
+      :args("?")
+
+   cmd:flag("--force", "Unpack files even if the output directory already exists.")
+   cmd:flag("--check-lua-versions", "If the rock can't be found, check repository "..
+      "and report if it is available for another Lua version.")
+end
+
+--- Load a rockspec file to the given directory, fetches the source
+-- files specified in the rockspec, and unpack them inside the directory.
+-- @param rockspec_file string: The URL for a rockspec file.
+-- @param dir_name string: The directory where to store and unpack files.
+-- @return table or (nil, string): the loaded rockspec table or
+-- nil and an error message.
+local function unpack_rockspec(rockspec_file, dir_name)
+   assert(type(rockspec_file) == "string")
+   assert(type(dir_name) == "string")
+
+   local rockspec, err = fetch.load_rockspec(rockspec_file)
+   if not rockspec then
+      return nil, "Failed loading rockspec "..rockspec_file..": "..err
+   end
+   local ok, err = fs.change_dir(dir_name)
+   if not ok then return nil, err end
+   local ok, sources_dir = fetch.fetch_sources(rockspec, true, ".")
+   if not ok then
+      return nil, sources_dir
+   end
+   ok, err = fs.change_dir(sources_dir)
+   if not ok then return nil, err end
+   ok, err = build.apply_patches(rockspec)
+   fs.pop_dir()
+   if not ok then return nil, err end
+   return rockspec
+end
+
+--- Load a .rock file to the given directory and unpack it inside it.
+-- @param rock_file string: The URL for a .rock file.
+-- @param dir_name string: The directory where to unpack.
+-- @param kind string: the kind of rock file, as in the second-level
+-- extension in the rock filename (eg. "src", "all", "linux-x86")
+-- @return table or (nil, string): the loaded rockspec table or
+-- nil and an error message.
+local function unpack_rock(rock_file, dir_name, kind)
+   assert(type(rock_file) == "string")
+   assert(type(dir_name) == "string")
+
+   local ok, err, errcode = fetch.fetch_and_unpack_rock(rock_file, dir_name)
+   if not ok then
+      return nil, err, errcode
+   end
+   ok, err = fs.change_dir(dir_name)
+   if not ok then return nil, err end
+   local rockspec_file = dir_name..".rockspec"
+   local rockspec, err = fetch.load_rockspec(rockspec_file)
+   if not rockspec then
+      return nil, "Failed loading rockspec "..rockspec_file..": "..err
+   end
+   if kind == "src" then
+      if rockspec.source.file then
+         local ok, err = fs.unpack_archive(rockspec.source.file)
+         if not ok then return nil, err end
+         ok, err = fetch.find_rockspec_source_dir(rockspec, ".")
+         if not ok then return nil, err end
+         ok, err = fs.change_dir(rockspec.source.dir)
+         if not ok then return nil, err end
+         ok, err = build.apply_patches(rockspec)
+         fs.pop_dir()
+         if not ok then return nil, err end
+      end
+   end
+   return rockspec
+end
+
+--- Create a directory and perform the necessary actions so that
+-- the sources for the rock and its rockspec are unpacked inside it,
+-- laid out properly so that the 'make' command is able to build the module.
+-- @param file string: A rockspec or .rock URL.
+-- @return boolean or (nil, string): true if successful or nil followed
+-- by an error message.
+local function run_unpacker(file, force)
+   assert(type(file) == "string")
+
+   local base_name = dir.base_name(file)
+   local dir_name, kind, extension = base_name:match("(.*)%.([^.]+)%.(rock)$")
+   if not extension then
+      dir_name, extension = base_name:match("(.*)%.(rockspec)$")
+      kind = "rockspec"
+   end
+   if not extension then
+      return nil, file.." does not seem to be a valid filename."
+   end
+
+   local exists = fs.exists(dir_name)
+   if exists and not force then
+      return nil, "Directory "..dir_name.." already exists."
+   end
+   if not exists then
+      local ok, err = fs.make_dir(dir_name)
+      if not ok then return nil, err end
+   end
+   local rollback = util.schedule_function(fs.delete, fs.absolute_name(dir_name))
+
+   local rockspec, err
+   if extension == "rock" then
+      rockspec, err = unpack_rock(file, dir_name, kind)
+   elseif extension == "rockspec" then
+      rockspec, err = unpack_rockspec(file, dir_name)
+   end
+   if not rockspec then
+      return nil, err
+   end
+   if kind == "src" or kind == "rockspec" then
+      fetch.find_rockspec_source_dir(rockspec, ".")
+      if rockspec.source.dir ~= "." then
+         local ok = fs.copy(rockspec.local_abs_filename, rockspec.source.dir, "read")
+         if not ok then
+            return nil, "Failed copying unpacked rockspec into unpacked source directory."
+         end
+      end
+      util.printout()
+      util.printout("Done. You may now enter directory ")
+      util.printout(dir.path(dir_name, rockspec.source.dir))
+      util.printout("and type 'luarocks make' to build.")
+   end
+   util.remove_scheduled_function(rollback)
+   return true
+end
+
+--- Driver function for the "unpack" command.
+-- @return boolean or (nil, string): true if successful or nil followed
+-- by an error message.
+function unpack.command(args)
+   local url, err
+   if args.rock:match(".*%.rock") or args.rock:match(".*%.rockspec") then
+      url = args.rock
+   else
+      url, err = search.find_src_or_rockspec(args.rock, args.namespace, args.version, args.check_lua_versions)
+      if not url then
+         return nil, err
+      end
+   end
+
+   return run_unpacker(url, args.force)
+end
+
+return unpack
diff --git a/src/luarocks/cmd/upload.lua b/src/luarocks/cmd/upload.lua
new file mode 100644
index 0000000..6b84e45
--- /dev/null
+++ b/src/luarocks/cmd/upload.lua
@@ -0,0 +1,128 @@
+
+local upload = {}
+
+local signing = require("luarocks.signing")
+local util = require("luarocks.util")
+local fetch = require("luarocks.fetch")
+local pack = require("luarocks.pack")
+local cfg = require("luarocks.core.cfg")
+local Api = require("luarocks.upload.api")
+
+function upload.add_to_parser(parser)
+   local cmd = parser:command("upload", "Pack a source rock file (.src.rock extension) "..
+      "and upload it and the rockspec to the public rocks repository.", util.see_also())
+      :summary("Upload a rockspec to the public rocks repository.")
+
+   cmd:argument("rockspec", "Rockspec for the rock to upload.")
+   cmd:argument("src-rock", "A corresponding .src.rock file; if not given it will be generated.")
+      :args("?")
+
+   cmd:flag("--skip-pack", "Do not pack and send source rock.")
+   cmd:option("--api-key", "Pass an API key. It will be stored for subsequent uses.")
+      :argname("<key>")
+   cmd:option("--temp-key", "Use the given a temporary API key in this "..
+      "invocation only. It will not be stored.")
+      :argname("<key>")
+   cmd:flag("--force", "Replace existing rockspec if the same revision of a "..
+      "module already exists. This should be used only in case of upload "..
+      "mistakes: when updating a rockspec, increment the revision number "..
+      "instead.")
+   cmd:flag("--sign", "Upload a signature file alongside each file as well.")
+   cmd:flag("--debug"):hidden(true)
+end
+
+local function is_dev_version(version)
+   return version:match("^dev") or version:match("^scm")
+end
+
+function upload.command(args)
+   local api, err = Api.new(args)
+   if not api then
+      return nil, err
+   end
+   if cfg.verbose then
+      api.debug = true
+   end
+
+   local rockspec, err, errcode = fetch.load_rockspec(args.rockspec)
+   if err then
+      return nil, err, errcode
+   end
+
+   util.printout("Sending " .. tostring(args.rockspec) .. " ...")
+   local res, err = api:method("check_rockspec", {
+      package = rockspec.package,
+      version = rockspec.version
+   })
+   if not res then return nil, err end
+
+   if not res.module then
+      util.printout("Will create new module (" .. tostring(rockspec.package) .. ")")
+   end
+   if res.version and not args.force then
+      return nil, "Revision "..rockspec.version.." already exists on the server. "..util.see_help("upload")
+   end
+
+   local sigfname
+   local rock_sigfname
+
+   if args.sign then
+      sigfname, err = signing.sign_file(args.rockspec)
+      if err then
+         return nil, "Failed signing rockspec: " .. err
+      end
+      util.printout("Signed rockspec: "..sigfname)
+   end
+
+   local rock_fname
+   if args.src_rock then
+      rock_fname = args.src_rock
+   elseif not args.skip_pack and not is_dev_version(rockspec.version) then
+      util.printout("Packing " .. tostring(rockspec.package))
+      rock_fname, err = pack.pack_source_rock(args.rockspec)
+      if not rock_fname then
+         return nil, err
+      end
+   end
+
+   if rock_fname and args.sign then
+      rock_sigfname, err = signing.sign_file(rock_fname)
+      if err then
+         return nil, "Failed signing rock: " .. err
+      end
+      util.printout("Signed packed rock: "..rock_sigfname)
+   end
+
+   local multipart = require("luarocks.upload.multipart")
+
+   res, err = api:method("upload", nil, {
+     rockspec_file = multipart.new_file(args.rockspec),
+     rockspec_sig = sigfname and multipart.new_file(sigfname),
+   })
+   if not res then return nil, err end
+
+   if res.is_new and #res.manifests == 0 then
+      util.printerr("Warning: module not added to root manifest due to name taken.")
+   end
+
+   local module_url = res.module_url
+
+   if rock_fname then
+      if (not res.version) or (not res.version.id) then
+         return nil, "Invalid response from server."
+      end
+      util.printout(("Sending " .. tostring(rock_fname) .. " ..."))
+      res, err = api:method("upload_rock/" .. ("%d"):format(res.version.id), nil, {
+         rock_file = multipart.new_file(rock_fname),
+         rock_sig = rock_sigfname and multipart.new_file(rock_sigfname),
+      })
+      if not res then return nil, err end
+   end
+
+   util.printout()
+   util.printout("Done: " .. tostring(module_url))
+   util.printout()
+   return true
+end
+
+return upload
diff --git a/src/luarocks/cmd/which.lua b/src/luarocks/cmd/which.lua
new file mode 100644
index 0000000..f50a43c
--- /dev/null
+++ b/src/luarocks/cmd/which.lua
@@ -0,0 +1,40 @@
+
+--- @module luarocks.which_cmd
+-- Driver for the `luarocks which` command.
+local which_cmd = {}
+
+local loader = require("luarocks.loader")
+local cfg = require("luarocks.core.cfg")
+local util = require("luarocks.util")
+
+function which_cmd.add_to_parser(parser)
+   local cmd = parser:command("which", 'Given a module name like "foo.bar", '..
+      "output which file would be loaded to resolve that module by "..
+      'luarocks.loader, like "/usr/local/lua/'..cfg.lua_version..'/foo/bar.lua".',
+      util.see_also())
+      :summary("Tell which file corresponds to a given module name.")
+
+   cmd:argument("modname", "Module name.")
+end
+
+--- Driver function for "which" command.
+-- @return boolean This function terminates the interpreter.
+function which_cmd.command(args)
+   local pathname, rock_name, rock_version, where = loader.which(args.modname, "lp")
+
+   if pathname then
+      util.printout(pathname)
+      if where == "l" then
+         util.printout("(provided by " .. tostring(rock_name) .. " " .. tostring(rock_version) .. ")")
+      else
+         local key = rock_name
+         util.printout("(found directly via package." .. key.. " -- not installed as a rock?)")
+      end
+      return true
+   end
+
+   return nil, "Module '" .. args.modname .. "' not found."
+end
+
+return which_cmd
+
diff --git a/src/luarocks/cmd/write_rockspec.lua b/src/luarocks/cmd/write_rockspec.lua
new file mode 100644
index 0000000..871cdd4
--- /dev/null
+++ b/src/luarocks/cmd/write_rockspec.lua
@@ -0,0 +1,408 @@
+
+local write_rockspec = {}
+
+local builtin = require("luarocks.build.builtin")
+local cfg = require("luarocks.core.cfg")
+local dir = require("luarocks.dir")
+local fetch = require("luarocks.fetch")
+local fs = require("luarocks.fs")
+local persist = require("luarocks.persist")
+local rockspecs = require("luarocks.rockspecs")
+local type_rockspec = require("luarocks.type.rockspec")
+local util = require("luarocks.util")
+
+local lua_versions = {
+   "5.1",
+   "5.2",
+   "5.3",
+   "5.4",
+   "5.1,5.2",
+   "5.2,5.3",
+   "5.3,5.4",
+   "5.1,5.2,5.3",
+   "5.2,5.3,5.4",
+   "5.1,5.2,5.3,5.4"
+}
+
+function write_rockspec.cmd_options(parser)
+   return parser:option("--output", "Write the rockspec with the given filename.\n"..
+         "If not given, a file is written in the current directory with a "..
+         "filename based on given name and version.")
+         :argname("<file>"),
+      parser:option("--license", 'A license string, such as "MIT/X11" or "GNU GPL v3".')
+         :argname("<string>"),
+      parser:option("--summary", "A short one-line description summary.")
+         :argname("<txt>"),
+      parser:option("--detailed", "A longer description string.")
+         :argname("<txt>"),
+      parser:option("--homepage", "Project homepage.")
+         :argname("<txt>"),
+      parser:option("--lua-versions", 'Supported Lua versions. Accepted values are: "'..
+         table.concat(lua_versions, '", "')..'".')
+         :argname("<ver>")
+         :choices(lua_versions),
+      parser:option("--rockspec-format", 'Rockspec format version, such as "1.0" or "1.1".')
+         :argname("<ver>"),
+      parser:option("--tag", "Tag to use. Will attempt to extract version number from it."),
+      parser:option("--lib", "A comma-separated list of libraries that C files need to link to.")
+         :argname("<libs>")
+end
+
+function write_rockspec.add_to_parser(parser)
+   local cmd = parser:command("write_rockspec", [[
+This command writes an initial version of a rockspec file,
+based on a name, a version, and a location (an URL or a local path).
+If only two arguments are given, the first one is considered the name and the
+second one is the location.
+If only one argument is given, it must be the location.
+If no arguments are given, current directory is used as the location.
+LuaRocks will attempt to infer name and version if not given,
+using 'dev' as a fallback default version.
+
+Note that the generated file is a _starting point_ for writing a
+rockspec, and is not guaranteed to be complete or correct. ]], util.see_also())
+      :summary("Write a template for a rockspec file.")
+
+   cmd:argument("name", "Name of the rock.")
+      :args("?")
+   cmd:argument("version", "Rock version.")
+      :args("?")
+   cmd:argument("location", "URL or path to the rock sources.")
+      :args("?")
+
+   write_rockspec.cmd_options(cmd)
+end
+
+local function open_file(name)
+   return io.open(dir.path(fs.current_dir(), name), "r")
+end
+
+local function fetch_url(rockspec)
+   local file, temp_dir, err_code, err_file, err_temp_dir = fetch.fetch_sources(rockspec, false)
+   if err_code == "source.dir" then
+      file, temp_dir = err_file, err_temp_dir
+   elseif not file then
+      util.warning("Could not fetch sources - "..temp_dir)
+      return false
+   end
+   util.printout("File successfully downloaded. Making checksum and checking base dir...")
+   if dir.is_basic_protocol(rockspec.source.protocol) then
+      rockspec.source.md5 = fs.get_md5(file)
+   end
+   local inferred_dir, found_dir = fetch.find_base_dir(file, temp_dir, rockspec.source.url)
+   return true, found_dir or inferred_dir, temp_dir
+end
+
+local lua_version_dep = {
+   ["5.1"] = "lua ~> 5.1",
+   ["5.2"] = "lua ~> 5.2",
+   ["5.3"] = "lua ~> 5.3",
+   ["5.4"] = "lua ~> 5.4",
+   ["5.1,5.2"] = "lua >= 5.1, < 5.3",
+   ["5.2,5.3"] = "lua >= 5.2, < 5.4",
+   ["5.3,5.4"] = "lua >= 5.3, < 5.5",
+   ["5.1,5.2,5.3"] = "lua >= 5.1, < 5.4",
+   ["5.2,5.3,5.4"] = "lua >= 5.2, < 5.5",
+   ["5.1,5.2,5.3,5.4"] = "lua >= 5.1, < 5.5",
+}
+
+local simple_scm_protocols = {
+   git = true,
+   ["git+http"] = true,
+   ["git+https"] = true,
+   ["git+ssh"] = true,
+   hg = true,
+   ["hg+http"] = true,
+   ["hg+https"] = true,
+   ["hg+ssh"] = true,
+}
+
+local detect_url
+do
+   local function detect_url_from_command(program, args, directory)
+      local command = fs.Q(cfg.variables[program:upper()]).. " "..args
+      local pipe = io.popen(fs.command_at(directory, fs.quiet_stderr(command)))
+      if not pipe then return nil end
+      local url = pipe:read("*a"):match("^([^\r\n]+)")
+      pipe:close()
+      if not url then return nil end
+      if url:match("^[^@:/]+@[^@:/]+:.*$") then
+         local u, h, p = url:match("^([^@]+)@([^:]+):(.*)$")
+         url = program.."+ssh://"..u.."@"..h.."/"..p
+      elseif not util.starts_with(url, program.."://") then
+         url = program.."+"..url
+      end
+
+      if simple_scm_protocols[dir.split_url(url)] then
+         return url
+      end
+   end
+
+   local function detect_scm_url(directory)
+      return detect_url_from_command("git", "config --get remote.origin.url", directory) or
+         detect_url_from_command("hg", "paths default", directory)
+   end
+
+   detect_url = function(url_or_dir)
+      if url_or_dir:match("://") then
+         return url_or_dir
+      else
+         return detect_scm_url(url_or_dir) or "*** please add URL for source tarball, zip or repository here ***"
+      end
+   end
+end
+
+local function detect_homepage(url, homepage)
+   if homepage then
+      return homepage
+   end
+   local url_protocol, url_path = dir.split_url(url)
+
+   if simple_scm_protocols[url_protocol] then
+      for _, domain in ipairs({"github.com", "bitbucket.org", "gitlab.com"}) do
+         if util.starts_with(url_path, domain) then
+            return "https://"..url_path:gsub("%.git$", "")
+         end
+      end
+   end
+
+   return "*** please enter a project homepage ***"
+end
+
+local function detect_description()
+   local fd = open_file("README.md") or open_file("README")
+   if not fd then return end
+   local data = fd:read("*a")
+   fd:close()
+   local paragraph = data:match("\n\n([^%[].-)\n\n")
+   if not paragraph then paragraph = data:match("\n\n(.*)") end
+   local summary, detailed
+   if paragraph then
+      detailed = paragraph
+
+      if #paragraph < 80 then
+         summary = paragraph:gsub("\n", "")
+      else
+         summary = paragraph:gsub("\n", " "):match("([^.]*%.) ")
+      end
+   end
+   return summary, detailed
+end
+
+local licenses = {
+   [78656] = "MIT",
+   [49311] = "ISC",
+}
+
+local function detect_license(data)
+   local strip_copyright = (data:gsub("^Copyright [^\n]*\n", ""))
+   local sum = 0
+   for i = 1, #strip_copyright do
+      local num = string.byte(strip_copyright:sub(i,i))
+      if num > 32 and num <= 128 then
+         sum = sum + num
+      end
+   end
+   return licenses[sum]
+end
+
+local function check_license()
+   local fd = open_file("COPYING") or open_file("LICENSE") or open_file("MIT-LICENSE.txt")
+   if not fd then return nil end
+   local data = fd:read("*a")
+   fd:close()
+   local license = detect_license(data)
+   if license then
+      return license, data
+   end
+   return nil, data
+end
+
+local function fill_as_builtin(rockspec, libs)
+   rockspec.build.type = "builtin"
+
+   local incdirs, libdirs
+   if libs then
+      incdirs, libdirs = {}, {}
+      for _, lib in ipairs(libs) do
+         local upper = lib:upper()
+         incdirs[#incdirs+1] = "$("..upper.."_INCDIR)"
+         libdirs[#libdirs+1] = "$("..upper.."_LIBDIR)"
+      end
+   end
+
+   rockspec.build.modules, rockspec.build.install, rockspec.build.copy_directories = builtin.autodetect_modules(libs, incdirs, libdirs)
+end
+
+local function rockspec_cleanup(rockspec)
+   rockspec.source.file = nil
+   rockspec.source.protocol = nil
+   rockspec.source.identifier = nil
+   rockspec.source.dir = nil
+   rockspec.source.dir_set = nil
+   rockspec.source.pathname = nil
+   rockspec.variables = nil
+   rockspec.name = nil
+   rockspec.format_is_at_least = nil
+   rockspec.local_abs_filename = nil
+   rockspec.rocks_provided = nil
+   for _, list in ipairs({"dependencies", "build_dependencies", "test_dependencies"}) do
+      if rockspec[list] and not next(rockspec[list]) then
+         rockspec[list] = nil
+      end
+   end
+   for _, list in ipairs({"dependencies", "build_dependencies", "test_dependencies"}) do
+      if rockspec[list] then
+         for i, entry in ipairs(rockspec[list]) do
+            rockspec[list][i] = tostring(entry)
+         end
+      end
+   end
+end
+
+function write_rockspec.command(args)
+   local name, version = args.name, args.version
+   local location = args.location
+
+   if not name then
+      location = "."
+   elseif not version then
+      location = name
+      name = nil
+   elseif not location then
+      location = version
+      version = nil
+   end
+
+   if args.tag then
+      if not version then
+         version = args.tag:gsub("^v", "")
+      end
+   end
+
+   local protocol, pathname = dir.split_url(location)
+   if protocol == "file" then
+      if pathname == "." then
+         name = name or dir.base_name(fs.current_dir())
+      end
+   elseif dir.is_basic_protocol(protocol) then
+      local filename = dir.base_name(location)
+      local newname, newversion = filename:match("(.*)-([^-]+)")
+      if newname then
+         name = name or newname
+         version = version or newversion:gsub("%.[a-z]+$", ""):gsub("%.tar$", "")
+      end
+   else
+      name = name or dir.base_name(location):gsub("%.[^.]+$", "")
+   end
+
+   if not name then
+      return nil, "Could not infer rock name. "..util.see_help("write_rockspec")
+   end
+   version = version or "dev"
+
+   local filename = args.output or dir.path(fs.current_dir(), name:lower().."-"..version.."-1.rockspec")
+
+   local url = detect_url(location)
+   local homepage = detect_homepage(url, args.homepage)
+
+   local rockspec, err = rockspecs.from_persisted_table(filename, {
+      rockspec_format = args.rockspec_format,
+      package = name,
+      version = version.."-1",
+      source = {
+         url = url,
+         tag = args.tag,
+      },
+      description = {
+         summary = args.summary or "*** please specify description summary ***",
+         detailed = args.detailed or "*** please enter a detailed description ***",
+         homepage = homepage,
+         license = args.license or "*** please specify a license ***",
+      },
+      dependencies = {
+         lua_version_dep[args.lua_versions],
+      },
+      build = {},
+   })
+   assert(not err, err)
+   rockspec.source.protocol = protocol
+
+   if not next(rockspec.dependencies) then
+      util.warning("Please specify supported Lua versions with --lua-versions=<ver>. "..util.see_help("write_rockspec"))
+   end
+
+   local local_dir = location
+
+   if location:match("://") then
+      rockspec.source.file = dir.base_name(location)
+      if not dir.is_basic_protocol(rockspec.source.protocol) then
+         if version ~= "dev" then
+            rockspec.source.tag = args.tag or "v" .. version
+         end
+      end
+      rockspec.source.dir = nil
+      local ok, base_dir, temp_dir = fetch_url(rockspec)
+      if ok then
+         if base_dir ~= dir.base_name(location) then
+            rockspec.source.dir = base_dir
+         end
+      end
+      if base_dir then
+         local_dir = dir.path(temp_dir, base_dir)
+      else
+         local_dir = nil
+      end
+   end
+
+   if not local_dir then
+      local_dir = "."
+   end
+
+   local libs = nil
+   if args.lib then
+      libs = {}
+      rockspec.external_dependencies = {}
+      for lib in args.lib:gmatch("([^,]+)") do
+         table.insert(libs, lib)
+         rockspec.external_dependencies[lib:upper()] = {
+            library = lib
+         }
+      end
+   end
+
+   local ok, err = fs.change_dir(local_dir)
+   if not ok then return nil, "Failed reaching files from project - error entering directory "..local_dir end
+
+   if not (args.summary and args.detailed) then
+      local summary, detailed = detect_description()
+      rockspec.description.summary = args.summary or summary
+      rockspec.description.detailed = args.detailed or detailed
+   end
+
+   if not args.license then
+      local license, fulltext = check_license()
+      if license then
+         rockspec.description.license = license
+      elseif license then
+         util.title("Could not auto-detect type for project license:")
+         util.printout(fulltext)
+         util.printout()
+         util.title("Please fill in the source.license field manually or use --license.")
+      end
+   end
+
+   fill_as_builtin(rockspec, libs)
+
+   rockspec_cleanup(rockspec)
+
+   persist.save_from_table(filename, rockspec, type_rockspec.order)
+
+   util.printout()
+   util.printout("Wrote template at "..filename.." -- you should now edit and finish it.")
+   util.printout()
+
+   return true
+end
+
+return write_rockspec