# Contributor: Jakub Jirutka <jakub@jirutka.cz>
# Maintainer: Jakub Jirutka <jakub@jirutka.cz>

# Note: This software is total mess and it seems to be nearly impossible to
#   create a clean distribution package.
global pkgname := 'emscripten'
# Keep with sync with pkg emscrypten-fastcomp!
global pkgver := '1.37.9'
global pkgrel := '3'
global pkgdesc := '"An LLVM-to-JavaScript Compiler'"
global url := '"https://kripken.github.io/emscripten-site/'"
global arch := '"all'"
global license := '"MIT UOI-NCSA'"
global depends := ""$pkgname-optimizer>=$pkgver emscripten-fastcomp>=$pkgver
	nodejs python2 node-closurecompiler-externs""
global makedepends := '"binaryen clang cmake'"
global checkdepends := '"closure-compiler'"
global subpackages := ""$pkgname-optimizer
	$pkgname-libs-asmjs:libs_asmjs:noarch
	$pkgname-libs-wasm:libs_wasm:noarch""
global source := ""$pkgname-$pkgver.tar.gz::https://github.com/kripken/$pkgname/archive/$pkgver.tar.gz
	fix-python-shebang.patch
	settings_template-paths.patch
	add-system-level-config.patch
	move-emcc-txt.patch
	binaryen-wasm-js-path.patch
	closurecompiler-externs-path.patch
	closurecompiler-language_in-es6.patch
	embuilder-fix-task-all-for-wasm.patch
	embuilder-omit-provided.patch
	add-global-cache.patch
	emscripten.cfg""
global builddir := ""$srcdir/$pkgname-$pkgver""

global _ports := '"Bullet-version_1:bullet
	FreeType-version_1:freetype
	libpng-version_1:libpng
	Ogg-version_1:ogg
	SDL2-version_13:sdl2
	SDL2_image-version_3:sdl2-image
	SDL2_net-version_2:sdl2-net
	SDL2_ttf-version_1:sdl2-ttf
	Vorbis-version_1:vorbis
	zlib-version_1:zlib
	'"
for _port in [$_ports] {
	global _port := $(_port%:*)
	global source := ""$source $pkgname-port-$_port-zip::https://github.com/emscripten-ports/$(_port%-*)/archive/$(_port##*-).zip""
}

export EM_CACHE="$srcdir/cache"
export EM_CONFIG="$srcdir/.emscripten"
export EM_PORTS="$srcdir/ports"

proc prepare {
	default_prepare

	cd $builddir

	# This file is read from emcc.py for --help.
	cp site/build/text/docs/tools_reference/emcc.txt .

	sed -e "s|/usr/share/emscripten|$builddir|" \
		-e "s|/usr/bin/emoptimizer|$builddir/tools/optimizer/optimizer|" \
		"$srcdir"/emscripten.cfg > $EM_CONFIG

	# Symlink fetched ports to the directory where emscripten can find them.
	mkdir -p $EM_PORTS
	var port = ''; for port in [$_ports] {
		ln -s "$srcdir"/$pkgname-port-$(port%:*)-zip "$EM_PORTS"/$(port#*:).zip
	}

	# Backup and patch system_libs.py to block fetching ports from internet.
	cp tools/system_libs.py tools/system_libs.py.orig
	sed -Ei 's/^(\s+).*\.urlopen\(.*/\1logging.error("fetching disabled in abuild"); exit(1)/' \
		tools/system_libs.py
}

proc build {
	cd "$builddir"/tools/optimizer

	msg "Building optimizer..."
	cmake \
		-DCMAKE_BUILD_TYPE=Release \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_CXX_FLAGS="$CXXFLAGS" \
		-DCMAKE_C_FLAGS="$CFLAGS" \
		-DCMAKE_C_COMPILER=clang \
		-DCMAKE_VERBOSE_MAKEFILE=ON
	make

	cd $builddir

	msg "Building libraries and ports for asm.js..."
	./embuilder.py build ALL

	msg "Building libraries and ports for WebAssembly..."
	env EMCC_WASM_BACKEND=1 ./embuilder.py build ALL
}

proc check {
	cd "$builddir"/tests

	rm -f hello_world.js*
	../emcc -Os --closure 1 -o hello_world.js hello_world.c
	node hello_world.js
}

proc package {
	var destdir = ""$pkgdir/usr/share/$pkgname""
	var name = ''

	mkdir -p $destdir
	cp -r "$builddir"/* "$destdir"/

	cd $destdir

	# Revert original file without connection blocking.
	mv tools/system_libs.py.orig tools/system_libs.py

	find . -name "*.bat" -delete
	find . -name "*.pyc" -delete  # these contain wrong absolute path
	rm -r docs   # there are only few PDFs and TeX sources
	rm -r media  # media for website
	rm -r site   # a website (?)
	rm -r tests  # looks more like a dump of random sources than decent tests
	rm -r third_party  # bundled stuff
	rm -r tools/optimizer  # we've already built it
	rm AUTHORS LICENSE *.md *.markdown package.json
	rm system/lib/build_cxx_natively.sh tools/update_libc_symbols.sh  # garbage

	mkdir -p "$pkgdir"/usr/bin
	for name in  [em++ em-config emar embuilder.py emcc emcmake \
		emconfigure emlink.py emmake emrun emscons]
	{
		ln -s ../share/$pkgname/$name "$pkgdir"/usr/bin/$name
	}

	install -D -m 644 "$srcdir"/emscripten.cfg "$pkgdir"/etc/emscripten.cfg

	mkdir cache  # this directory should not exist yet!
	install -m 644 "$EM_CACHE"/is_vanilla.txt cache/
}

proc optimizer {
	global pkgdesc := '"Emscripten's optimizer for asm.js code'"
	global depends := ''""

	install -D -m 755 "$builddir"/tools/optimizer/optimizer \
		"$subpkgdir"/usr/bin/emoptimizer
}

proc libs_asmjs {
	global pkgdesc := '"Prebuilt libraries and ports for Emscripten - asm.js'"
	global depends := ""$pkgname=$pkgver-r$pkgrel""
	var destdir = ""$subpkgdir/usr/share/$pkgname/cache/asmjs""

	mkdir -p $destdir
	cp -r "$EM_CACHE"/asmjs/*.bc "$destdir"/
}

proc libs_wasm {
	global pkgdesc := '"Prebuilt libraries and ports for Emscripten - WebAssembly'"
	global depends := ""$pkgname=$pkgver-r$pkgrel""
	var destdir = ""$subpkgdir/usr/share/$pkgname/cache/wasm""

	mkdir -p $destdir
	cp -r "$EM_CACHE"/wasm/*.bc "$destdir"/
}

global sha512sums := '"0efd9035d3dce0726025b5b8e30129885eef30f915c502b8957150e4ffc11fd0e9a2b605854cdf69ca3eb05e5102bf34341b7edd2116f5fa29fd170a28e7f07f  emscripten-1.37.9.tar.gz
a61e172ced6b72adb53a840255a9753905a0c7a1c9f8965345781b9cdcc8a596c4dc88f036e91bd5c05d8b3eb2908bbb7d991c4e1abcf35a46be67b9765e546a  fix-python-shebang.patch
f190ea32dcd4af2661f455ffd8773cb0f7b30ba4a96d22609e11af7186ed1a5c230f3c379d717f23213e87143bb5601acc4d75799631854d0312ff308cbcc14b  settings_template-paths.patch
10a7a545f468a5f71fdf1cca0e0be983db5d21387202b851bd11f811c2a0a74f4e4c8733ae9ff933df4ea49c3f5e8e4e16fc3651bc98bb8c37a0828bb29eca7e  add-system-level-config.patch
6613ef4cf41bcf0ecc13a0415cdc847f4ec112f07dd19573000ea6a9a6f2360aee6b2db01f822d117d5022dc58b2421be89fe3421c46fd6857737d07ce489c1e  move-emcc-txt.patch
a2a2c9b56e8d655b06fdbac2e297e07a0bbcdc3e3df7c913b5caac8ddf20f66b91ed77ac46275adcf8e92baedb5a50cb554c8f3fa59823e17006e17d8d11e820  binaryen-wasm-js-path.patch
1d699aa0ab4b257d58c30ebefd6fbce9a74df964c37f360dcbcaaa6e6c6f4bc8e3f706f32e5855fb6e307d099c7eaca47d07d12a52c83caab43b268fccb606ef  closurecompiler-externs-path.patch
5b63f42e4934c7c6d5eedb9e46636a488bc0723618dd0b5d5b720d58cf9d1f6a6e6a768fe1ce1188f86bbb931b6881dfdfc36f8c0584775cb66a9d9e8a2cbb9a  closurecompiler-language_in-es6.patch
53bb9b64222dd445e8aefbb5a4b87bc6d562ea578a6f7a04c2605703f0235633583144fe478031e650a7346ba89f6e0aaf6c435aedb8398131fa02940356bc17  embuilder-fix-task-all-for-wasm.patch
3d2fb817ea3e1dd661900df1e27bd135f39076723494b7ffbbe9e1561ae0a0e62a4ed0058301cf3e6b9a13f75adafe58dc902d4a32ade2cb16754a7fd5e542af  embuilder-omit-provided.patch
8d02f598df12ecbebab151a9d9e6972164bddf4da586e5a3070f2a5b35248b622a663a513295c1bf79fcf13523940ea5e47f8ab1def86e28b260dba8bfef7bac  add-global-cache.patch
42142064f828c39fbeb04e65c13c0eae8d843ee8541e67db361086b2d44ad896604d561220363f71aa8aa9f07ae6c285a39f49d9078f5a56e022879ed987c020  emscripten.cfg
3922486816cf7d99ee02c3c1ef63d94290e8ed304016dd9927137d04206e7674d9df8773a4abb7bb57783d0a5107ad0f893aa87acfb34f7b316eec22ca55a536  emscripten-port-Bullet-version_1-zip
0d0b1280ba0501ad0a23cf1daa1f86821c722218b59432734d3087a89acd22aabd5c3e5e1269700dcd41e87073046e906060f167c032eb91a3ac8c5808a02783  emscripten-port-FreeType-version_1-zip
a19ede8a4339f2745a490c22f3893899e1a5eae9d2b270e49d88d3a85239fbbaa26c9a352d0e6fb8bb69b4f45bd00c1ae9eff29b60cf03e79c5df45a4409992f  emscripten-port-libpng-version_1-zip
929e8d6003c06ae09593021b83323c8f1f54532b67b8ba189f4aedce52c25dc182bac474de5392c46ad5b0dea5a24928e4ede1492d52f4dd5cd58eea9be4dba7  emscripten-port-Ogg-version_1-zip
e7cbcafc1398c337814caa4b91692989d65ed5ffdd8ff1bebb9673a566bba6c16f1e3b72abefaff4b3e390b6571eba678e9ea197cdfd14641648b5282688ef50  emscripten-port-SDL2-version_13-zip
785d6f636b5124dbfc65841fcd5c75df42c8186cb85e5c977e6e321317f0381a7690125a78e6687da1081b1ce6c876040d04083e770e2c8b28e7c2e776287555  emscripten-port-SDL2_image-version_3-zip
317b22ad9b6b2f7b40fac7b7c426da2fa2da1803bbe58d480631f1e5b190d730763f2768c77c72affa806c69a1e703f401b15a1be3ec611cd259950d5ebc3711  emscripten-port-SDL2_net-version_2-zip
6ce426de0411ba51dd307027c4ef00ff3de4ee396018e524265970039132ab20adb29c2d2e61576c393056374f03fd148dd96f0c4abf8dcee51853dd32f0778f  emscripten-port-SDL2_ttf-version_1-zip
99bee75beb662f8520bbb18ad6dbf8590d30eb3a7360899f0ac4764ca72fe8013da37c9df21e525f9d2dc5632827d4b4cea558cbc938e7fbed0c41a29a7a2dc5  emscripten-port-Vorbis-version_1-zip
77f7d8f18fe11bb66a57e358325b7422d721f7b506bd63293cfde74079f958864db66ead5a36c311a76dd8c2b089b7659641a5522de650de0f9e6865782a60dd  emscripten-port-zlib-version_1-zip'"
(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:pkgname) op:Equal rhs:{(emscripten)} spids:[13])]
      spids: [13]
    )
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:pkgver) op:Equal rhs:{(1.37.9)} spids:[19])]
      spids: [19]
    )
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:pkgrel) op:Equal rhs:{(3)} spids:[22])]
      spids: [22]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:pkgdesc)
          op: Equal
          rhs: {(DQ ("An LLVM-to-JavaScript Compiler"))}
          spids: [25]
        )
      ]
      spids: [25]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:url)
          op: Equal
          rhs: {(DQ ("https://kripken.github.io/emscripten-site/"))}
          spids: [30]
        )
      ]
      spids: [30]
    )
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:arch) op:Equal rhs:{(DQ (all))} spids:[35])]
      spids: [35]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:license)
          op: Equal
          rhs: {(DQ ("MIT UOI-NCSA"))}
          spids: [40]
        )
      ]
      spids: [40]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:depends)
          op: Equal
          rhs: 
            {
              (DQ ($ VSub_Name "$pkgname") ("-optimizer>=") ($ VSub_Name "$pkgver") 
                (" emscripten-fastcomp>=") ($ VSub_Name "$pkgver") ("\n") ("\tnodejs python2 node-closurecompiler-externs")
              )
            }
          spids: [45]
        )
      ]
      spids: [45]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:makedepends)
          op: Equal
          rhs: {(DQ ("binaryen clang cmake"))}
          spids: [56]
        )
      ]
      spids: [56]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:checkdepends)
          op: Equal
          rhs: {(DQ (closure-compiler))}
          spids: [61]
        )
      ]
      spids: [61]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:subpackages)
          op: Equal
          rhs: 
            {
              (DQ ($ VSub_Name "$pkgname") ("-optimizer\n") ("\t") ($ VSub_Name "$pkgname") 
                ("-libs-asmjs:libs_asmjs:noarch\n") ("\t") ($ VSub_Name "$pkgname") ("-libs-wasm:libs_wasm:noarch")
              )
            }
          spids: [66]
        )
      ]
      spids: [66]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:source)
          op: Equal
          rhs: 
            {
              (DQ ($ VSub_Name "$pkgname") (-) ($ VSub_Name "$pkgver") 
                (".tar.gz::https://github.com/kripken/") ($ VSub_Name "$pkgname") (/archive/) ($ VSub_Name "$pkgver") (".tar.gz\n") 
                ("\tfix-python-shebang.patch\n") ("\tsettings_template-paths.patch\n") ("\tadd-system-level-config.patch\n") ("\tmove-emcc-txt.patch\n") 
                ("\tbinaryen-wasm-js-path.patch\n") ("\tclosurecompiler-externs-path.patch\n") ("\tclosurecompiler-language_in-es6.patch\n") 
                ("\tembuilder-fix-task-all-for-wasm.patch\n") ("\tembuilder-omit-provided.patch\n") ("\tadd-global-cache.patch\n") ("\temscripten.cfg")
              )
            }
          spids: [78]
        )
      ]
      spids: [78]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:builddir)
          op: Equal
          rhs: {(DQ ($ VSub_Name "$srcdir") (/) ($ VSub_Name "$pkgname") (-) ($ VSub_Name "$pkgver"))}
          spids: [101]
        )
      ]
      spids: [101]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:_ports)
          op: Equal
          rhs: 
            {
              (DQ ("Bullet-version_1:bullet\n") ("\tFreeType-version_1:freetype\n") 
                ("\tlibpng-version_1:libpng\n") ("\tOgg-version_1:ogg\n") ("\tSDL2-version_13:sdl2\n") ("\tSDL2_image-version_3:sdl2-image\n") 
                ("\tSDL2_net-version_2:sdl2-net\n") ("\tSDL2_ttf-version_1:sdl2-ttf\n") ("\tVorbis-version_1:vorbis\n") ("\tzlib-version_1:zlib\n") ("\t")
              )
            }
          spids: [111]
        )
      ]
      spids: [111]
    )
    (ForEach
      iter_name: _port
      iter_words: [{($ VSub_Name "$_ports")}]
      do_arg_iter: False
      body: 
        (DoGroup
          children: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:_port)
                  op: Equal
                  rhs: 
                    {
                      (BracedVarSub
                        token: <VSub_Name _port>
                        suffix_op: (StringUnary op_id:VOp1_Percent arg_word:{(":*")})
                        spids: [139 143]
                      )
                    }
                  spids: [138]
                )
              ]
              spids: [138]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:source)
                  op: Equal
                  rhs: 
                    {
                      (DQ ($ VSub_Name "$source") (" ") ($ VSub_Name "$pkgname") (-port-) 
                        ($ VSub_Name "$_port") ("-zip::https://github.com/emscripten-ports/") 
                        (BracedVarSub
                          token: <VSub_Name _port>
                          suffix_op: (StringUnary op_id:VOp1_Percent arg_word:{("-*")})
                          spids: [154 158]
                        ) (/archive/) 
                        (BracedVarSub
                          token: <VSub_Name _port>
                          suffix_op: (StringUnary op_id:VOp1_DPound arg_word:{("*-")})
                          spids: [160 164]
                        ) (.zip)
                      )
                    }
                  spids: [146]
                )
              ]
              spids: [146]
            )
          ]
          spids: [135 168]
        )
      spids: [131 133]
    )
    (C {(export)} {(Lit_VarLike "EM_CACHE=") (DQ ($ VSub_Name "$srcdir") (/cache))})
    (C {(export)} {(Lit_VarLike "EM_CONFIG=") (DQ ($ VSub_Name "$srcdir") (/.emscripten))})
    (C {(export)} {(Lit_VarLike "EM_PORTS=") (DQ ($ VSub_Name "$srcdir") (/ports))})
    (FuncDef
      name: prepare
      body: 
        (BraceGroup
          children: [
            (C {(default_prepare)})
            (C {(cd)} {(DQ ($ VSub_Name "$builddir"))})
            (C {(cp)} {(site/build/text/docs/tools_reference/emcc.txt)} {(.)})
            (SimpleCommand
              words: [
                {(sed)}
                {(-e)}
                {(DQ ("s|/usr/share/emscripten|") ($ VSub_Name "$builddir") ("|"))}
                {(-e)}
                {
                  (DQ ("s|/usr/bin/emoptimizer|") ($ VSub_Name "$builddir") 
                    ("/tools/optimizer/optimizer|")
                  )
                }
                {(DQ ($ VSub_Name "$srcdir")) (/emscripten.cfg)}
              ]
              redirects: [
                (Redir
                  op_id: Redir_Great
                  fd: -1
                  arg_word: {(DQ ($ VSub_Name "$EM_CONFIG"))}
                  spids: [254]
                )
              ]
            )
            (C {(mkdir)} {(-p)} {(DQ ($ VSub_Name "$EM_PORTS"))})
            (Sentence
              child: 
                (Assignment
                  keyword: Assign_Local
                  pairs: [(assign_pair lhs:(LhsName name:port) op:Equal spids:[277])]
                  spids: [275]
                )
              terminator: <Op_Semi ";">
            )
            (ForEach
              iter_name: port
              iter_words: [{($ VSub_Name "$_ports")}]
              do_arg_iter: False
              body: 
                (DoGroup
                  children: [
                    (C {(ln)} {(-s)} 
                      {(DQ ($ VSub_Name "$srcdir")) (/) ($ VSub_Name "$pkgname") (-port-) 
                        (BracedVarSub
                          token: <VSub_Name port>
                          suffix_op: (StringUnary op_id:VOp1_Percent arg_word:{(":*")})
                          spids: [302 306]
                        ) (-zip)
                      } 
                      {(DQ ($ VSub_Name "$EM_PORTS")) (/) 
                        (BracedVarSub
                          token: <VSub_Name port>
                          suffix_op: (StringUnary op_id:VOp1_Pound arg_word:{("*:")})
                          spids: [313 317]
                        ) (.zip)
                      }
                    )
                  ]
                  spids: [289 321]
                )
              spids: [285 287]
            )
            (C {(cp)} {(tools/system_libs.py)} {(tools/system_libs.py.orig)})
            (C {(sed)} {(-Ei)} 
              {
                (SQ 
                  <
"s/^(\\s+).*\\.urlopen\\(.*/\\1logging.error(\"fetching disabled in abuild\"); exit(1)/"
                  >
                )
              } {(tools/system_libs.py)}
            )
          ]
          spids: [200]
        )
      spids: [196 199]
    )
    (FuncDef
      name: build
      body: 
        (BraceGroup
          children: [
            (C {(cd)} {(DQ ($ VSub_Name "$builddir")) (/tools/optimizer)})
            (C {(msg)} {(DQ ("Building optimizer..."))})
            (C {(cmake)} {(-DCMAKE_BUILD_TYPE) (Lit_Other "=") (Release)} 
              {(-DCMAKE_INSTALL_PREFIX) (Lit_Other "=") (/usr)} {(-DCMAKE_CXX_FLAGS) (Lit_Other "=") (DQ ($ VSub_Name "$CXXFLAGS"))} 
              {(-DCMAKE_C_FLAGS) (Lit_Other "=") (DQ ($ VSub_Name "$CFLAGS"))} {(-DCMAKE_C_COMPILER) (Lit_Other "=") (clang)} {(-DCMAKE_VERBOSE_MAKEFILE) (Lit_Other "=") (ON)}
            )
            (C {(make)})
            (C {(cd)} {(DQ ($ VSub_Name "$builddir"))})
            (C {(msg)} {(DQ ("Building libraries and ports for asm.js..."))})
            (C {(./embuilder.py)} {(build)} {(ALL)})
            (C {(msg)} {(DQ ("Building libraries and ports for WebAssembly..."))})
            (SimpleCommand
              words: [{(./embuilder.py)} {(build)} {(ALL)}]
              more_env: [(env_pair name:EMCC_WASM_BACKEND val:{(1)} spids:[451])]
            )
          ]
          spids: [355]
        )
      spids: [351 354]
    )
    (FuncDef
      name: check
      body: 
        (BraceGroup
          children: [
            (C {(cd)} {(DQ ($ VSub_Name "$builddir")) (/tests)})
            (C {(rm)} {(-f)} {(hello_world.js) (Lit_Other "*")})
            (C {(../emcc)} {(-Os)} {(--closure)} {(1)} {(-o)} {(hello_world.js)} {(hello_world.c)})
            (C {(node)} {(hello_world.js)})
          ]
          spids: [467]
        )
      spids: [463 466]
    )
    (FuncDef
      name: package
      body: 
        (BraceGroup
          children: [
            (Assignment
              keyword: Assign_Local
              pairs: [
                (assign_pair
                  lhs: (LhsName name:destdir)
                  op: Equal
                  rhs: {(DQ ($ VSub_Name "$pkgdir") (/usr/share/) ($ VSub_Name "$pkgname"))}
                  spids: [518]
                )
              ]
              spids: [516]
            )
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