forked from mirrors/nixpkgs
59 lines
1.6 KiB
Nix
59 lines
1.6 KiB
Nix
# idea: provide nix environment for your developement actions
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# experimental
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/*
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# example:
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# add postgresql to environment and create ctags (tagfiles can be extracted from TAG_FILES)
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# add this to your ~/.nixpkgs/config.nix
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devEnvs = pkgs : with pkgs; with sourceAndTags;
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let simple = { name, buildInputs ? [], cTags ? [] }:
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pkgs.myEnvFun {
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inherit name stdenv;
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buildInputs = buildInputs
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++ map (x : sourceWithTagsDerivation ( (addCTaggingInfo x ).passthru.sourceWithTags ) ) cTags;
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extraCmds = ". ~/.bashrc; cd $PWD
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# configure should find them
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export LDFLAGS=$NIX_LDFLAGS
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export CFLAGS=$NIX_CFLAGS_COMPILE
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";
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preBuild = "export TAG_FILES";
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};
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in {
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postgresql = simple {
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name = "postgresql";
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buildInputs = [postgresql];
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cTags = [postgresql ];
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};
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};
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Put this into your .bashrc
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loadEnv(){ . "${HOME}/.nix-profile/dev-envs/${1}" }
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then install and
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$ loadEnv postgresql
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*/
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args: args.stdenv.mkDerivation (
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{ extraCmds =""; } // {
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phases = "buildPhase";
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buildPhase = ''
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eval "$preBuild"
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name=${args.name}
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o=$out/dev-envs/$name
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ensureDir `dirname $o`
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echo "
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OLDPATH=\$PATH " >> $o
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export | grep -v HOME= | grep -v PATH= | grep -v PWD= | grep -v TEMP= | grep -v TMP= >> $o
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echo "
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PATH=$PATH:$OLDPATH
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for i in \$buildInputs; do
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export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:\$i/lib
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done
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export PATH=\$PATH:\$OLDPATH
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$extraCmds
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echo env $name loaded
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" >> $o
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'';
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} // args // { name = "${args.name}-env"; } )
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