Files

160 lines
4.8 KiB
Nix

{
stdenv,
buildEnv,
lib,
makeBinaryWrapper,
mpvScripts,
mpv-unwrapped,
symlinkJoin,
writeTextDir,
yt-dlp,
extraMakeWrapperArgs ? [ ],
youtubeSupport ? true,
# a set of derivations (probably from `mpvScripts`) where each is expected
# to have a `scriptName` passthru attribute that points to the name of the
# script that would reside in the script's derivation's
# `$out/share/mpv/scripts/`.
#
# A script can optionally also provide `passthru.extraWrapperArgs`
# attribute.
scripts ? [ ],
extraUmpvWrapperArgs ? [ ],
}:
let
binPath = lib.makeBinPath (
[
mpv-unwrapped.luaEnv
]
++ lib.optionals mpv-unwrapped.vapoursynthSupport [
mpv-unwrapped.vapoursynth.python3
]
);
# With some tools, we want to prioritize tools that are in PATH. For example, users may want
# to quickly expose a newer version of yt-dlp through the nix shell because it needs to be
# kept up-to-date for it to work.
fallbackBinPath = lib.makeBinPath (lib.optionals youtubeSupport [ yt-dlp ]);
# All arguments besides the input and output binaries (${mpv-unwrapped}/bin/mpv and
# $out/bin/mpv). These are used by the darwin specific makeWrapper call
# used to wrap $out/Applications/mpv.app/Contents/MacOS/mpv as well.
mostMakeWrapperArgs = lib.strings.escapeShellArgs (
[
"--inherit-argv0"
# These are always needed (TODO: Explain why)
"--prefix"
"LUA_CPATH"
";"
"${mpv-unwrapped.luaEnv}/lib/lua/${mpv-unwrapped.lua.luaversion}/?.so"
"--prefix"
"LUA_PATH"
";"
"${mpv-unwrapped.luaEnv}/share/lua/${mpv-unwrapped.lua.luaversion}/?.lua"
]
++ lib.optionals mpv-unwrapped.vapoursynthSupport [
"--prefix"
"PYTHONPATH"
":"
"${mpv-unwrapped.vapoursynth}/${mpv-unwrapped.vapoursynth.python3.sitePackages}"
]
++ lib.optionals (binPath != "") [
"--prefix"
"PATH"
":"
binPath
]
++ lib.optionals (fallbackBinPath != "") [
"--suffix"
"PATH"
":"
fallbackBinPath
]
++ (lib.lists.flatten (
map
# For every script in the `scripts` argument, add the necessary flags to the wrapper
(
script:
let
mkScriptArgs = script: scriptName: [
"--add-flags"
"--script=${script}/share/mpv/scripts/${scriptName}"
];
in
# Here we rely on the existence of the `scriptName` passthru
# attribute of the script derivation from the `scripts`
(mkScriptArgs script script.scriptName)
# scripts might need others to be explicitly loaded
++ (map (extraScriptName: mkScriptArgs script extraScriptName) (script.extraScriptsToLoad or [ ]))
# scripts can also set the `extraWrapperArgs` passthru
++ (script.extraWrapperArgs or [ ])
)
scripts
))
++ extraMakeWrapperArgs
);
umpvWrapperArgs = lib.strings.escapeShellArgs (
[
"--inherit-argv0"
"--set"
"MPV"
"${placeholder "out"}/bin/mpv"
]
++ extraUmpvWrapperArgs
);
in
symlinkJoin {
pname = "mpv-with-scripts";
inherit (mpv-unwrapped) version;
# TODO: don't link all mpv outputs
paths = [ mpv-unwrapped.all ];
nativeBuildInputs = [ makeBinaryWrapper ];
passthru.unwrapped = mpv-unwrapped;
passthru.tests.mpv-scripts-should-not-collide = buildEnv {
name = "mpv-scripts-env";
paths = lib.pipe mpvScripts [
# filters "throw" aliases
(lib.filterAttrs (key: script: (builtins.tryEval (lib.isDerivation script)).success))
# filters "override" "overrideDerivation" "recurseForDerivations"
(lib.filterAttrs (key: script: lib.isDerivation script))
# filters mpv scripts that opt out of this check
(lib.filterAttrs (key: script: !(script.passthru.dontCollideCheck or false)))
# replaces unfree and meta.broken scripts with decent placeholders
(lib.mapAttrsToList (
key: script:
if (builtins.tryEval script.outPath).success then
script
else
writeTextDir "share/mpv/scripts/${script.scriptName}" "placeholder of ${script.name}"
))
];
};
postBuild = ''
# wrapProgram can't operate on symlinks
rm "$out/bin/mpv"
makeWrapper "${mpv-unwrapped}/bin/mpv" "$out/bin/mpv" ${mostMakeWrapperArgs}
rm "$out/bin/umpv"
makeWrapper "${mpv-unwrapped}/bin/umpv" "$out/bin/umpv" ${umpvWrapperArgs}
''
+ lib.optionalString stdenv.hostPlatform.isDarwin ''
# wrapProgram can't operate on symlinks
rm "$out/Applications/mpv.app/Contents/MacOS/mpv"
makeWrapper "${mpv-unwrapped}/Applications/mpv.app/Contents/MacOS/mpv" "$out/Applications/mpv.app/Contents/MacOS/mpv" ${mostMakeWrapperArgs}
'';
meta = {
inherit (mpv-unwrapped.meta)
homepage
description
longDescription
maintainers
;
mainProgram = "mpv";
};
}