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|
{ pkgs, stdenv } :
let inherit (pkgs) stdenv runCommand perl lib;
in
{
/*
Usage example creating a derivation installing ruby, sup and a lib:
packageOverrides = {
rubyCollection = collection {
name = "ruby";
list = let l = rubyPackages; in
[ pkgs.ruby l.chronic l.sup ];
};
}
*/
collection = {list, name} : runCommand "collection-${name}" {} ''
mkdir -p $out/nix-support
printWords ${builtins.toString list} > $out/nix-support/propagated-user-env-packages
'';
/* creates a derivation symlinking references C/C++ libs into one include and lib directory called $out/cdt-envs/${name}
then you can
ln -s ~/.nix-profile/cdt-envs/name ./nix-deps
and add .nix-deps/{libs,includes} to IDE's such as Eclipse/ Netbeans etc.
To update replace library versions just replace the symlink
*/
cdtEnv = { name, buildInputs }:
stdenv.mkDerivation {
name = "cdt-env-${name}";
inherit buildInputs;
phases = "installPhase";
installPhase = ''
set -x
# requires bash4
PATH=$PATH:${pkgs.pkgconfig}/bin
perlScript=$(dirname $(dirname ${builtins.getEnv "NIXPKGS_ALL"}))/build-support/buildenv/builder.pl
# now collect includes and lib paths
# probably the nix hooks work best, so reuse them by reading NIX_CFLAGS_COMPILE and NIX_LDFLAGS
PKG_CONFIG_KNOWN_PACKAGES=$(pkg-config --list-all | sed 's/ .*//')
declare -A INCLUDE_PATHS
declare -A LIB_PATHS
declare -A LIBS
declare -A CFLAGS_OTHER
PKG_CONFIG_LIBS="$(pkg-config --libs $PKG_CONFIG_KNOWN_PACKAGES)"
PKG_CONFIG_CFLAGS="$(pkg-config --cflags $PKG_CONFIG_KNOWN_PACKAGES)"
for i in $NIX_CFLAGS_COMPILE $PKG_CONFIG_CFLAGS; do
echo i is $i
case $i in
-I*) INCLUDE_PATHS["''${i/-I/}"]= ;;
*) CFLAGS_OTHER["''${i}"]= ;;
esac
echo list is now ''${!INCLUDE_PATHS[@]}
done
for i in $NIX_LDFLAGS $PKG_CONFIG_LIBS; do
case $i in
-L*)
LIB_PATHS["''${i/-L/}"]= ;;
esac
done
for i in $NIX_LDFLAGS $PKG_CONFIG_LIBS; do
echo chekcing $i
case $i in
-l*) LIBS["''${i}"]= ;;
esac;
done
# build output env
target="$out/cdt-envs/${name}"
link(){
echo "link !!!!"
echo $1
echo $2
(
export out="$1"
export paths="$2"
export ignoreCollisions=1
export manifest=
export pathsToLink=/
${perl}/bin/perl $perlScript
)
}
mkdir -p $target/{include,lib}
link $target/lib "$(echo "''${!LIB_PATHS[@]}")"
link $target/include "$(echo "''${!INCLUDE_PATHS[@]}")"
echo "''${!LIBS[@]}" > $target/libs
echo "''${!CFLAGS_OTHER[@]}" > $target/cflags-other
echo "''${PKG_CONFIG_PATH}" > $target/PKG_CONFIG_PATH
echo "''${PATH}" > $target/PATH
'';
};
# build a debug version of a package
debugVersion = pkg: lib.overrideDerivation pkg (attrs: {
prePhases = ["debugPhase"] ++ lib.optionals (attrs ? prePhases) attrs.prePhases;
postPhases = ["objectsPhase"] ++ lib.optionals (attrs ? postPhases) attrs.postPhases;
dontStrip = true;
CFLAGS="-ggdb -O0";
CXXFLAGS="-ggdb -O0";
debugPhase = ''
s=$out/src
mkdir -p $s; cd $s;
export TMP=$s
export TEMP=$s
for var in CFLAGS CXXFLAGS NIX_CFLAGS_COMPILE; do
declare -x "$var=''${!var} -ggdb -O0"
done
echo "file should tell that executable has not been stripped"
'';
objectsPhase = ''
cd $out/src
find . -name "*.o" -exec rm {} \;
'';
});
# build an optimized ersion of a package but with symbols and source
symbolsVersion = pkg: lib.overrideDerivation pkg (attrs: {
prePhases = ["debugPhase"] ++ lib.optionals (attrs ? prePhases) attrs.prePhases;
postPhases = ["objectsPhase"] ++ lib.optionals (attrs ? postPhases) attrs.postPhases;
dontStrip = true;
CFLAGS="-g -O2";
CXXFLAGS="-g -O2";
debugPhase = ''
s=$out/src
mkdir -p $s; cd $s;
export TMP=$s
export TEMP=$s
for var in CFLAGS CXXFLAGS NIX_CFLAGS_COMPILE; do
declare -x "$var=''${!var} -g -O2"
done
echo "file should tell that executable has not been stripped"
'';
objectsPhase = ''
cd $out/src
find . -name "*.o" -exec rm {} \;
'';
});
}
|