109 lines
2.9 KiB
Nix
109 lines
2.9 KiB
Nix
{ pkgs, stdenv } :
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let inherit (pkgs) stdenv runCommand perl;
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in
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{
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/*
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usage example creating a derivation installing ruby, sup and a lib:
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packageOverrides = {
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rubyCollection = collection {
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name = "ruby";
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list = let l = rubyLibs; in
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[ pkgs.ruby l.chronic l.sup ];
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};
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}
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*/
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collection = {list, name} : runCommand "collection-${name}" {} ''
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mkdir -p $out/nix-support
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echo ${builtins.toString list} > $out/nix-support/propagated-user-env-packages
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'';
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/* creates a derivation symlinking references C/C++ libs into one include and lib directory called $out/cdt-envs/${name}
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then you can
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ln -s ~/.nix-profile/cdt-envs/name ./nix-deps
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and add .nix-deps/{libs,includes} to IDE's such as Eclipse/ Netbeans etc.
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To update replace library versions just replace the symlink
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*/
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cdtEnv = { name, buildInputs }:
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stdenv.mkDerivation {
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name = "cdt-env-${name}";
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inherit buildInputs;
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phases = "installPhase";
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installPhase = ''
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set -x
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# requires bash4
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PATH=$PATH:${pkgs.pkgconfig}/bin
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perlScript=$(dirname $(dirname ${builtins.getEnv "NIXPKGS_ALL"}))/build-support/buildenv/builder.pl
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# now collect includes and lib paths
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# probably the nix hooks work best, so reuse them by reading NIX_CFLAGS_COMPILE and NIX_LDFLAGS
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PKG_CONFIG_KNOWN_PACKAGES=$(pkg-config --list-all | sed 's/ .*//')
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declare -A INCLUDE_PATHS
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declare -A LIB_PATHS
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declare -A LIBS
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declare -A CFLAGS_OTHER
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PKG_CONFIG_LIBS="$(pkg-config --libs $PKG_CONFIG_KNOWN_PACKAGES)"
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PKG_CONFIG_CFLAGS="$(pkg-config --cflags $PKG_CONFIG_KNOWN_PACKAGES)"
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for i in $NIX_CFLAGS_COMPILE $PKG_CONFIG_CFLAGS; do
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echo i is $i
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case $i in
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-I*) INCLUDE_PATHS["''${i/-I/}"]= ;;
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*) CFLAGS_OTHER["''${i}"]= ;;
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esac
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echo list is now ''${!INCLUDE_PATHS[@]}
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done
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for i in $NIX_LDFLAGS $PKG_CONFIG_LIBS; do
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case $i in
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-L*)
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LIB_PATHS["''${i/-L/}"]= ;;
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esac
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done
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for i in $NIX_LDFLAGS $PKG_CONFIG_LIBS; do
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echo chekcing $i
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case $i in
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-l*) LIBS["''${i}"]= ;;
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esac;
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done
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# build output env
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target="$out/cdt-envs/${name}"
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link(){
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echo "link !!!!"
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echo $1
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echo $2
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(
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export out="$1"
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export paths="$2"
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export ignoreCollisions=1
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export manifest=
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export pathsToLink=/
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${perl}/bin/perl $perlScript
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)
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}
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ensureDir $target/{include,lib}
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link $target/lib "$(echo "''${!LIB_PATHS[@]}")"
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link $target/include "$(echo "''${!INCLUDE_PATHS[@]}")"
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echo "''${!LIBS[@]}" > $target/libs
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echo "''${!CFLAGS_OTHER[@]}" > $target/cflags-other
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echo "''${PKG_CONFIG_PATH}" > $target/PKG_CONFIG_PATH
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echo "''${PATH}" > $target/PATH
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'';
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};
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}
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