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nixpkgs/pkgs/build-support/build-fhs-chrootenv/default.nix
2015-12-04 00:58:47 +03:00

49 lines
1.3 KiB
Nix

{ stdenv } : { env, extraInstallCommands ? "" } :
let
# References to shell scripts that set up or tear down the environment
initSh = ./init.sh.in;
mountSh = ./mount.sh.in;
loadSh = ./load.sh.in;
umountSh = ./umount.sh.in;
destroySh = ./destroy.sh.in;
name = env.pname;
in stdenv.mkDerivation {
name = "${name}-chrootenv";
preferLocalBuild = true;
buildCommand = ''
mkdir -p $out/bin
cd $out/bin
sed -e "s|@chrootEnv@|${env}|g" \
-e "s|@name@|${name}|g" \
-e "s|@shell@|${stdenv.shell}|g" \
${initSh} > init-${name}-chrootenv
chmod +x init-${name}-chrootenv
sed -e "s|@shell@|${stdenv.shell}|g" \
-e "s|@name@|${name}|g" \
${mountSh} > mount-${name}-chrootenv
chmod +x mount-${name}-chrootenv
sed -e "s|@shell@|${stdenv.shell}|g" \
-e "s|@name@|${name}|g" \
${loadSh} > load-${name}-chrootenv
chmod +x load-${name}-chrootenv
sed -e "s|@shell@|${stdenv.shell}|g" \
-e "s|@name@|${name}|g" \
${umountSh} > umount-${name}-chrootenv
chmod +x umount-${name}-chrootenv
sed -e "s|@chrootEnv@|${env}|g" \
-e "s|@shell@|${stdenv.shell}|g" \
-e "s|@name@|${name}|g" \
${destroySh} > destroy-${name}-chrootenv
chmod +x destroy-${name}-chrootenv
${extraInstallCommands}
'';
}