summaryrefslogtreecommitdiff
path: root/lua/nvim-treesitter/install.lua
blob: 381afaa4af28e397f44edad7deb586d921d423b8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
local api = vim.api
local fn = vim.fn
local luv = vim.loop

local configs = require'nvim-treesitter.configs'
local utils = require'nvim-treesitter.utils'
local parsers = require'nvim-treesitter.parsers'

local M = {}

local function iter_cmd(cmd_list, i, ft)
  if i == #cmd_list + 1 then return print('Treesitter parser for '..ft..' has been installed') end

  local attr = cmd_list[i]
  if attr.info then print(attr.info) end

  local handle

  handle = luv.spawn(attr.cmd, attr.opts, vim.schedule_wrap(function(code)
    handle:close()
    if code ~= 0 then return api.nvim_err_writeln(attr.err) end
    iter_cmd(cmd_list, i + 1, ft)
  end))
end

local function run_install(cache_folder, package_path, ft, repo)
  local project_name = 'tree-sitter-'..ft
  local project_repo = cache_folder..'/'..project_name
  -- compile_location only needed for typescript installs.
  local compile_location = cache_folder..'/'..(repo.location or project_name)
  local parser_lib_name = package_path.."/parser/"..ft..".so"
  local command_list = {
    {
      cmd = 'rm',
      opts = {
        args = { '-rf', project_repo },
      }
    },
    {
      cmd = 'git',
      info = 'Downloading...',
      err = 'Error during download, please verify your internet connection',
      opts = {
        args = { 'clone', '--single-branch', '--branch', 'master', '--depth', '1', repo.url, project_name },
        cwd = cache_folder,
      },
    },
    {
      cmd = 'cc',
      info = 'Compiling...',
      err = 'Error during compilation',
      opts = {
        args = vim.tbl_flatten({
            '-o',
            'parser.so',
            '-I./src',
            repo.files,
            '-shared',
            '-Os',
            '-lstdc++',
            '-fPIC',
          }),
        cwd = compile_location
      }
    },
    {
      cmd = 'mv',
      opts = {
        args = { compile_location..'/parser.so', parser_lib_name }
      }
    },
    {
      cmd = 'rm',
      opts = {
        args = { '-rf', project_repo }
      }
    }
  }

  iter_cmd(command_list, 1, ft)
end

-- TODO(kyazdani): this should work on windows too
local function install(...)
  if fn.has('win32') == 1 then
    return api.nvim_err_writeln('This command is not available on windows at the moment.')
  end

  if fn.executable('git') == 0 then
    return api.nvim_err_writeln('Git is required on your system to run this command')
  end

  local package_path, err = utils.get_package_path()
  if err then return api.nvim_err_writeln(err) end

  local cache_folder, err = utils.get_cache_dir()
  if err then return api.nvim_err_writeln(err) end

  for _, ft in ipairs({ ... }) do
    if #api.nvim_get_runtime_file('parser/'..ft..'.so', false) > 0 then
      local yesno = fn.input(ft .. ' parser already available: would you like to reinstall ? y/n: ')
      print('\n ') -- mandatory to avoid messing up command line
      if not string.match(yesno, '^y.*') then return end
    end

    local parser_config = configs.get_parser_configs()[ft]
    if not parser_config then
      return api.nvim_err_writeln('Parser not available for language '..ft)
    end

    local install_info = parser_config.install_info
    vim.validate {
      url={ install_info.url, 'string' },
      files={ install_info.files, 'table' }
    }

    run_install(cache_folder, package_path, ft, install_info)
  end
end


M.ensure_installed = function(languages)
  if type(languages) == 'string' then
    if languages == 'all' then
      languages = configs.available_parsers()
    else
      languages = {languages}
    end
  end

  for _, ft in ipairs(languages) do
    if not parsers.has_parser(ft) then
      install(ft)
    end
  end
end


M.commands = {
  TSInstall = {
    run = install,
    args = {
      "-nargs=+",
      "-complete=custom,v:lua.ts_installable_parsers"
    },
    description = '`:TSInstall {ft}` installs a parser under nvim-treesitter/parser/{name}.so'
  }
}

return M