157 lines
4.1 KiB
Nix
157 lines
4.1 KiB
Nix
{ stdenv, runCommand, ruby, lib
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, defaultGemConfig, buildRubyGem, buildEnv
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, makeWrapper
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, bundler
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}@defs:
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{
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name ? null
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, pname ? null
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, mainGemName ? null
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, gemdir ? null
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, gemfile ? null
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, lockfile ? null
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, gemset ? null
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, ruby ? defs.ruby
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, gemConfig ? defaultGemConfig
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, postBuild ? null
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, document ? []
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, meta ? {}
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, groups ? ["default"]
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, ignoreCollisions ? false
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, ...
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}@args:
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assert name == null -> pname != null;
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with import ./functions.nix { inherit lib gemConfig; };
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let
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gemFiles = bundlerFiles args;
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importedGemset = if builtins.typeOf gemFiles.gemset != "set"
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then import gemFiles.gemset
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else gemFiles.gemset;
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filteredGemset = filterGemset { inherit ruby groups; } importedGemset;
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configuredGemset = lib.flip lib.mapAttrs filteredGemset (name: attrs:
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applyGemConfigs (attrs // { inherit ruby; gemName = name; })
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);
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hasBundler = builtins.hasAttr "bundler" filteredGemset;
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bundler =
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if hasBundler then gems.bundler
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else defs.bundler.override (attrs: { inherit ruby; });
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gems = lib.flip lib.mapAttrs configuredGemset (name: attrs: buildGem name attrs);
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name' = if name != null then
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name
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else
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let
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gem = gems."${pname}";
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version = gem.version;
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in
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"${pname}-${version}";
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pname' = if pname != null then
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pname
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else
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name;
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copyIfBundledByPath = { bundledByPath ? false, ...}:
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(if bundledByPath then
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assert gemFiles.gemdir != null; "cp -a ${gemFiles.gemdir}/* $out/" #*/
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else ""
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);
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maybeCopyAll = pkgname: if pkgname == null then "" else
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let
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mainGem = gems."${pkgname}" or (throw "bundlerEnv: gem ${pkgname} not found");
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in
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copyIfBundledByPath mainGem;
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# We have to normalize the Gemfile.lock, otherwise bundler tries to be
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# helpful by doing so at run time, causing executables to immediately bail
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# out. Yes, I'm serious.
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confFiles = runCommand "gemfile-and-lockfile" {} ''
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mkdir -p $out
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${maybeCopyAll mainGemName}
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cp ${gemFiles.gemfile} $out/Gemfile || ls -l $out/Gemfile
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cp ${gemFiles.lockfile} $out/Gemfile.lock || ls -l $out/Gemfile.lock
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'';
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buildGem = name: attrs: (
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let
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gemAttrs = composeGemAttrs ruby gems name attrs;
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in
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if gemAttrs.type == "path" then
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pathDerivation gemAttrs
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else
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buildRubyGem gemAttrs
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);
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envPaths = lib.attrValues gems ++ lib.optional (!hasBundler) bundler;
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basicEnv = buildEnv {
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inherit ignoreCollisions;
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name = name';
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paths = envPaths;
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pathsToLink = [ "/lib" ];
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postBuild = genStubsScript (defs // args // {
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inherit confFiles bundler groups;
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binPaths = envPaths;
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}) + lib.optionalString (postBuild != null) postBuild;
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meta = { platforms = ruby.meta.platforms; } // meta;
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passthru = rec {
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inherit ruby bundler gems confFiles envPaths;
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wrappedRuby = stdenv.mkDerivation {
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name = "wrapped-ruby-${pname'}";
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nativeBuildInputs = [ makeWrapper ];
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buildCommand = ''
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mkdir -p $out/bin
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for i in ${ruby}/bin/*; do
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makeWrapper "$i" $out/bin/$(basename "$i") \
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--set BUNDLE_GEMFILE ${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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done
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'';
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};
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env = let
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irbrc = builtins.toFile "irbrc" ''
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if !(ENV["OLD_IRBRC"].nil? || ENV["OLD_IRBRC"].empty?)
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require ENV["OLD_IRBRC"]
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end
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require 'rubygems'
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require 'bundler/setup'
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'';
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in stdenv.mkDerivation {
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name = "${pname'}-interactive-environment";
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nativeBuildInputs = [ wrappedRuby basicEnv ];
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shellHook = ''
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export OLD_IRBRC=$IRBRC
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export IRBRC=${irbrc}
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'';
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buildCommand = ''
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echo >&2 ""
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echo >&2 "*** Ruby 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
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echo >&2 ""
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exit 1
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'';
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};
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};
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};
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in
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basicEnv
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