84 lines
2.4 KiB
Nix
84 lines
2.4 KiB
Nix
{ lib
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, stdenvNoCC }:
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let
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# Escape strings for embedding in shell scripts
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escaped = s: "'${lib.escape [ "'" ] s}'";
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escapedList = lib.concatMapStringsSep " " escaped;
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fileName = pathStr: lib.last (lib.splitString "/" pathStr);
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scriptsDir = "$out/share/mpv/scripts";
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# similar to `lib.extends`, but with inverted precedence and recursive update
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extendedBy = args: orig: self:
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let super = args self;
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in lib.recursiveUpdate (orig super) super
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;
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in
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lib.makeOverridable (args: stdenvNoCC.mkDerivation (extendedBy
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(if lib.isFunction args then args else (_: args)) (
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{ pname
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, extraScripts ? []
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, ... }@args:
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let
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strippedName = with builtins;
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let groups = match "mpv[-_](.*)" pname; in
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if groups != null
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then head groups
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else pname
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;
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# either passthru.scriptName, inferred from scriptPath, or from pname
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scriptName = (args.passthru or {}).scriptName or (
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if args ? scriptPath
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then fileName args.scriptPath
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else "${strippedName}.lua"
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);
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scriptPath = args.scriptPath or "./${scriptName}";
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in {
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dontBuild = true;
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preferLocalBuild = true;
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# Prevent `patch` from emitting `.orig` files (that end up in the output)
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patchFlags = [ "--no-backup-if-mismatch" "-p1" ];
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outputHashMode = "recursive";
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installPhase = ''
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runHook preInstall
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if [ -d "${scriptPath}" ]; then
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[ -f "${scriptPath}/main.lua" ] || {
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echo "Script directory '${scriptPath}' does not contain 'main.lua'" >&2
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exit 1
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}
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[ ${with builtins; toString (length extraScripts)} -eq 0 ] || {
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echo "mpvScripts.buildLua does not support 'extraScripts'" \
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"when 'scriptPath' is a directory" >&2
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exit 1
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}
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mkdir -p "${scriptsDir}"
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cp -a "${scriptPath}" "${scriptsDir}/${scriptName}"
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else
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install -m644 -Dt "${scriptsDir}" ${escaped scriptPath}
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${lib.optionalString (extraScripts != []) ''cp -at "${scriptsDir}/" ${escapedList extraScripts}''}
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fi
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runHook postInstall
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'';
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passthru = { inherit scriptName; };
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meta = {
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platforms = lib.platforms.all;
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} // (
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let pos =
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if (args.meta or {}) ? description then
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builtins.unsafeGetAttrPos "description" args.meta
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else
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builtins.unsafeGetAttrPos "pname" args;
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in lib.optionalAttrs
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(pos != null)
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{ position = "${pos.file}:${toString pos.line}"; }
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);
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})
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))
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