Rewrite ninja generation scripts in Lua

3 files changed, 123 insertions, 113 deletions

diff --git a/pkg/mpv/gen.lua b/pkg/mpv/gen.lua
new file mode 100644
index 00000000..5d77a98b
--- /dev/null
+++ b/pkg/mpv/gen.lua
@@ -0,0 +1,123 @@
+rule('versionhdr', 'sh $srcdir/version.sh --cwd=$srcdir --versionh=$out')
+build('versionhdr', '$outdir/version.h', {'|', '$srcdir/version.sh'})
+
+sub('tools.ninja', function()
+	toolchain 'host'
+	set('srcdir', '$dir')
+	exe('file2string', {'file2string.c'})
+end)
+
+cflags{
+	'-D _GNU_SOURCE',
+	'-I $dir',
+	'-I $outdir',
+	'-I $srcdir',
+	'-I pkg/ffmpeg/src',
+	'-I $builddir/pkg/ffmpeg/include',
+	'-I $builddir/pkg/zlib/include',
+}
+local libs = {
+	'ffmpeg/libavcodec.a.d',
+	'ffmpeg/libavdevice.a.d',
+	'ffmpeg/libavfilter.a.d',
+	'ffmpeg/libavformat.a.d',
+	'ffmpeg/libavutil.a',
+	'ffmpeg/libswresample.a.d',
+	'ffmpeg/libswscale.a.d',
+	'zlib/libz.a',
+}
+pkg.deps = {
+	'$outdir/version.h',
+	'pkg/ffmpeg/headers',
+	'pkg/zlib/headers',
+}
+
+rule('file2string', '$outdir/file2string $in >$out.tmp && mv $out.tmp $out')
+function file2string(out, inp)
+	build('file2string', '$outdir/'..out, {'$srcdir/'..inp, '|', '$outdir/file2string'})
+	table.insert(pkg.deps, '$outdir/'..out)
+end
+
+file2string('input/input_conf.h', 'etc/input.conf')
+file2string('player/builtin_conf.inc', 'etc/builtin.conf')
+file2string('sub/osd_font.h', 'sub/osd_font.otf')
+for _, f in ipairs{'assdraw', 'defaults', 'options', 'osc', 'ytdl_hook'} do
+	file2string('player/lua/'..f..'.inc', 'player/lua/'..f..'.lua')
+end
+
+local options = {}
+for line in io.lines(pkg.dir..'/config.h') do
+	local var, val = line:match('^#define ([^ ]+) ([^ ]+)')
+	if var and val == '1' then
+		options[var] = true
+	end
+end
+local sources = {}
+for line in io.lines(pkg.dir..'/sources.txt') do
+	local i = line:find(' ', 1, true)
+	local add = true
+	if i then
+		local var = line:sub(i + 1):upper():gsub('-', '_')
+		local neg = var:sub(1, 1) == '!'
+		if neg then
+			var = var:sub(2)
+		end
+		add = options['HAVE_'..var] or false ~= neg
+	end
+	if add then
+		sources[line:sub(1, i and i - 1)] = true
+	end
+end
+sources = table.keys(sources)
+table.insert(pkg.inputs.gen, {'$dir/config.h', '$dir/sources.txt'})
+
+if options['HAVE_ALSA'] then
+	cflags{'-I $builddir/pkg/alsa-lib/include'}
+	table.insert(libs, 'alsa-lib/libasound.a')
+	table.insert(pkg.deps, 'pkg/alsa-lib/headers')
+end
+if options['HAVE_DRM'] then
+	cflags{
+		'-I pkg/libdrm/src',
+		'-I pkg/libdrm/src/include/drm',
+	}
+	table.insert(libs, 'libdrm/libdrm.a')
+	table.insert(pkg.deps, '$builddir/pkg/libdrm/fetch.stamp')
+end
+if options['HAVE_LIBASS'] then
+	cflags{'-I $builddir/pkg/libass/include'}
+	table.insert(libs, 'libass/libass.a.d')
+	table.insert(pkg.deps, 'pkg/libass/headers')
+end
+if options['HAVE_LUA'] then
+	cflags{'-I pkg/lua/src/src'}
+	table.insert(libs, 'lua/liblua.a')
+	table.insert(pkg.deps, '$builddir/pkg/lua/fetch.stamp')
+end
+if options['HAVE_WAYLAND'] then
+	cflags{
+		'-I $builddir/pkg/wayland/include',
+		'-I pkg/libxkbcommon/src',
+	}
+	table.insert(libs, {
+		'wayland/libwayland-client.a.d',
+		'wayland/libwayland-cursor.a.d',
+		'libxkbcommon/libxkbcommon.a',
+	})
+	table.insert(pkg.deps, {
+		'pkg/wayland/headers',
+		'$builddir/pkg/libxkbcommon/fetch.stamp',
+	})
+end
+
+exe('mpv', {
+	'ta/ta.c',
+	'ta/ta_talloc.c',
+	'ta/ta_utils.c',
+	sources,
+	expand{'$builddir/pkg/', libs},
+})
+file('bin/mpv', '755', '$outdir/mpv')
+man{'DOCS/man/mpv.1'}
+
+fetch 'git'
diff --git a/pkg/mpv/gen.rc b/pkg/mpv/gen.rc
deleted file mode 100644
index 5ba8eb3e..00000000
--- a/pkg/mpv/gen.rc
+++ /dev/null
@@ -1,94 +0,0 @@
-cflags=(\
-	-D _GNU_SOURCE\
-	-I '$dir' \
-	-I '$outdir' \
-	-I '$srcdir' \
-	-I pkg/ffmpeg/src\
-	-I '$builddir'/pkg/ffmpeg/include\
-	-I '$builddir'/pkg/zlib/include\
-)
-
-srcs=(\
-        ta/^(ta.c ta_talloc.c ta_utils.c)\
-	`{awk -f sources.awk 'sources=sources.txt' config.h}\
-)
-checkstatus
-
-libs=(\
-	ffmpeg/^(\
-		libavcodec.a.d\
-		libavdevice.a.d\
-		libavfilter.a.d\
-		libavformat.a.d\
-		libavutil.a\
-		libswresample.a.d\
-		libswscale.a.d\
-	)\
-	zlib/libz.a\
-)
-
-deps=('$outdir'/version.h pkg/^(zlib ffmpeg)^/headers)
-
-rule versionhdr 'sh $srcdir/version.sh --cwd=$srcdir --versionh=$out'
-build '$outdir'/version.h versionhdr '|' '$srcdir'/version.sh
-
-{
-	toolchain host
-	set srcdir '$dir'
-	exe file2string file2string.c
-} >tools.ninja ; subninja tools.ninja
-
-rule file2string '$outdir/file2string $in >$out.tmp && mv $out.tmp $out'
-
-fn file2string {
-	build '$outdir'/$1 file2string '$srcdir'/$2 '|' '$outdir'/file2string
-	deps=($deps '$outdir'/$1)
-}
-
-file2string input/input_conf.h etc/input.conf
-file2string player/builtin_conf.inc etc/builtin.conf
-file2string sub/osd_font.h sub/osd_font.otf
-for(f in assdraw defaults options osc ytdl_hook)
-	file2string player/lua/$f.inc player/lua/$f.lua
-
-if(grep -qF 'HAVE_ALSA 1' config.h) {
-	cflags=($cflags -I '$builddir'/pkg/alsa-lib/include)
-	libs=($libs alsa-lib/libasound.a)
-	deps=($deps pkg/alsa-lib/headers)
-}
-if(grep -qF 'HAVE_DRM 1' config.h) {
-	cflags=($cflags '-I pkg/libdrm/'^(src src/include/drm))
-	libs=($libs libdrm/libdrm.a)
-	deps=($deps '$builddir'/pkg/libdrm/fetch.stamp)
-}
-if(grep -qF 'HAVE_LIBASS 1' config.h) {
-	cflags=($cflags -I '$builddir'/pkg/libass/include)
-	libs=($libs libass/libass.a.d)
-	deps=($deps pkg/libass/headers)
-}
-if(grep -qF 'HAVE_LUA 1' config.h) {
-	cflags=($cflags -I pkg/lua/src/src)
-	libs=($libs lua/liblua.a)
-	deps=($deps '$builddir'/pkg/lua/fetch.stamp)
-}
-if(grep -qF 'HAVE_WAYLAND 1' config.h) {
-	cflags=($cflags\
-		-I '$builddir'/pkg/wayland/include\
-		-I pkg/libxkbcommon/src\
-	)
-	libs=($libs\
-		wayland/libwayland-^(client cursor)^.a.d\
-		libxkbcommon/libxkbcommon.a\
-	)
-	deps=($deps pkg/wayland/headers '$builddir'/pkg/libxkbcommon/fetch.stamp)
-}
-
-cflags $cflags
-phony deps $deps
-
-exe mpv -d '$dir'/deps $srcs '$builddir'/pkg/$libs
-file bin/mpv '$outdir'/mpv 755
-man -d DOCS/man 1 mpv.1
-
-gen_inputs='$dir'/^(sources.awk sources.txt config.h)
-fetch git
diff --git a/pkg/mpv/sources.awk b/pkg/mpv/sources.awk
deleted file mode 100644
index 622d74b3..00000000
--- a/pkg/mpv/sources.awk
+++ /dev/null
@@ -1,19 +0,0 @@
-# usage: awk -f sources.awk sources=sources.txt config.h
-
-$1 == "#define" && $3 ~ /[01]/ {
-	cfg[$2] = $3
-}
-
-END {
-	while (getline < sources) {
-		if (NF == 2) {
-			var = toupper($2)
-			gsub("-", "_", var)
-			if (neg = var ~ /^!/)
-				var = substr(var, 2)
-			if (cfg["HAVE_" var] == neg)
-				continue
-		}
-		print $1
-	}
-}