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cef857e8b7
Because the gemdir was referenced on the derivation, it would cause the whole gemdir to get added to the store, which would in turn force the derivation to be rebuilt whenever unrelated folder files would change.
69 lines
2.6 KiB
Nix
69 lines
2.6 KiB
Nix
{ lib, stdenv, callPackage, runCommand, makeWrapper, ruby }@defs:
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# Use for simple installation of Ruby tools shipped in a Gem.
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# Start with a Gemfile that includes `gem <toolgem>`
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# > nix-shell -p bundler bundix
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# (shell)> bundle lock
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# (shell)> bundix
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# Then use rubyTool in the default.nix:
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# rubyTool { pname = "gemifiedTool"; gemdir = ./.; exes = ["gemified-tool"]; }
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# The 'exes' parameter ensures that a copy of e.g. rake doesn't polute the system.
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{
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# use the name of the name in question; its version will be picked up from the gemset
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pname
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# Gemdir is the location of the Gemfile{,.lock} and gemset.nix; usually ./.
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# This is required unless gemfile, lockfile, and gemset are all provided
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, gemdir ? null
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# Exes is the list of executables provided by the gems in the Gemfile
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, exes ? []
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# Scripts are ruby programs depend on gems in the Gemfile (e.g. scripts/rails)
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, scripts ? []
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, ruby ? defs.ruby
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, gemfile ? null
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, lockfile ? null
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, gemset ? null
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, preferLocalBuild ? false
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, allowSubstitutes ? false
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, installManpages ? true
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, meta ? {}
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, buildInputs ? []
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, postBuild ? ""
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, gemConfig ? null
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, passthru ? {}
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}@args:
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let
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basicEnv = (callPackage ../bundled-common {}) args;
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cmdArgs = removeAttrs args [ "pname" "postBuild" "gemConfig" "passthru" "gemset" "gemdir" ] // {
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inherit preferLocalBuild allowSubstitutes; # pass the defaults
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buildInputs = buildInputs ++ lib.optional (scripts != []) makeWrapper;
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meta = { platforms = ruby.meta.platforms; } // meta;
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passthru = basicEnv.passthru // {
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inherit basicEnv;
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inherit (basicEnv) env;
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} // passthru;
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};
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in
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runCommand basicEnv.name cmdArgs ''
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mkdir -p $out/bin
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${(lib.concatMapStrings (x: "ln -s '${basicEnv}/bin/${x}' $out/bin/${x};\n") exes)}
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${(lib.concatMapStrings (s: "makeWrapper $out/bin/$(basename ${s}) $srcdir/${s} " +
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"--set BUNDLE_GEMFILE ${basicEnv.confFiles}/Gemfile "+
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"--set BUNDLE_PATH ${basicEnv}/${ruby.gemPath} "+
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"--set BUNDLE_FROZEN 1 "+
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"--set GEM_HOME ${basicEnv}/${ruby.gemPath} "+
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"--set GEM_PATH ${basicEnv}/${ruby.gemPath} "+
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"--run \"cd $srcdir\";\n") scripts)}
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${lib.optionalString installManpages ''
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for section in {1..9}; do
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mandir="$out/share/man/man$section"
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find -L ${basicEnv}/${ruby.gemPath}/gems/${basicEnv.name} \( -wholename "*/man/*.$section" -o -wholename "*/man/man$section/*.$section" \) -print -execdir mkdir -p $mandir \; -execdir cp '{}' $mandir \;
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done
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''}
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''
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