110 lines
4 KiB
Nix
110 lines
4 KiB
Nix
# Arguments that this derivation gets when it is created with `callPackage`
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{ stdenv
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, buildEnv
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, lib
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, makeWrapper
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, mpvScripts
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, symlinkJoin
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, writeTextDir
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, yt-dlp
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# the unwrapped mpv derivation
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}:
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let
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# arguments to the function (exposed as `mpv-unwrapped.wrapper` in top-level)
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wrapper = {
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mpv,
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extraMakeWrapperArgs ? [],
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youtubeSupport ? true,
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# a set of derivations (probably from `mpvScripts`) where each is expected
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# to have a `scriptName` passthru attribute that points to the name of the
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# script that would reside in the script's derivation's
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# `$out/share/mpv/scripts/`.
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#
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# A script can optionally also provide `passthru.extraWrapperArgs`
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# attribute.
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scripts ? [],
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extraUmpvWrapperArgs ? []
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}:
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let
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binPath = lib.makeBinPath ([
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mpv.luaEnv
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] ++ lib.optionals youtubeSupport [
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yt-dlp
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] ++ lib.optionals mpv.vapoursynthSupport [
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mpv.vapoursynth.python3
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]);
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# All arguments besides the input and output binaries (${mpv}/bin/mpv and
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# $out/bin/mpv). These are used by the darwin specific makeWrapper call
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# used to wrap $out/Applications/mpv.app/Contents/MacOS/mpv as well.
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mostMakeWrapperArgs = lib.strings.escapeShellArgs ([ "--inherit-argv0"
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# These are always needed (TODO: Explain why)
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"--prefix" "LUA_CPATH" ";" "${mpv.luaEnv}/lib/lua/${mpv.lua.luaversion}/?.so"
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"--prefix" "LUA_PATH" ";" "${mpv.luaEnv}/share/lua/${mpv.lua.luaversion}/?.lua"
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] ++ lib.optionals mpv.vapoursynthSupport [
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"--prefix" "PYTHONPATH" ":" "${mpv.vapoursynth}/${mpv.vapoursynth.python3.sitePackages}"
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] ++ lib.optionals (binPath != "") [
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"--prefix" "PATH" ":" binPath
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] ++ (lib.lists.flatten (map
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# For every script in the `scripts` argument, add the necessary flags to the wrapper
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(script:
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[
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"--add-flags"
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# Here we rely on the existence of the `scriptName` passthru
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# attribute of the script derivation from the `scripts`
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"--script=${script}/share/mpv/scripts/${script.scriptName}"
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]
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# scripts can also set the `extraWrapperArgs` passthru
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++ (script.extraWrapperArgs or [])
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) scripts
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)) ++ extraMakeWrapperArgs)
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;
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umpvWrapperArgs = lib.strings.escapeShellArgs ([
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"--inherit-argv0"
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"--set" "MPV" "${placeholder "out"}/bin/mpv"
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] ++ extraUmpvWrapperArgs)
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;
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in
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symlinkJoin {
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name = "mpv-with-scripts-${mpv.version}";
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# TODO: don't link all mpv outputs and convert package to mpv-unwrapped?
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paths = [ mpv.all ];
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nativeBuildInputs = [ makeWrapper ];
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passthru.unwrapped = mpv;
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passthru.tests.mpv-scripts-should-not-collide = buildEnv {
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name = "mpv-scripts-env";
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paths = lib.pipe mpvScripts [
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# filters "override" "overrideDerivation" "recurseForDerivations"
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(lib.filterAttrs (key: script: lib.isDerivation script))
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# replaces unfree and meta.broken scripts with decent placeholders
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(lib.mapAttrsToList (key: script:
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if (builtins.tryEval script.outPath).success
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then script
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else writeTextDir "share/mpv/scripts/${script.scriptName}" "placeholder of ${script.name}"
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))
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];
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};
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postBuild = ''
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# wrapProgram can't operate on symlinks
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rm "$out/bin/mpv"
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makeWrapper "${mpv}/bin/mpv" "$out/bin/mpv" ${mostMakeWrapperArgs}
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rm "$out/bin/umpv"
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makeWrapper "${mpv}/bin/umpv" "$out/bin/umpv" ${umpvWrapperArgs}
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'' + lib.optionalString stdenv.hostPlatform.isDarwin ''
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# wrapProgram can't operate on symlinks
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rm "$out/Applications/mpv.app/Contents/MacOS/mpv"
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makeWrapper "${mpv}/Applications/mpv.app/Contents/MacOS/mpv" "$out/Applications/mpv.app/Contents/MacOS/mpv" ${mostMakeWrapperArgs}
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'';
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meta = {
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inherit (mpv.meta) homepage description longDescription maintainers;
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mainProgram = "mpv";
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};
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};
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in
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lib.makeOverridable wrapper
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