87 lines
2.2 KiB
Nix
87 lines
2.2 KiB
Nix
{stdenv, glibc, glibcLocales, gcc, coreutils, diffutils, findutils, gnused, gnugrep, gnutar, gzip, bzip2,
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bashInteractive, xz, shadow, gawk, less, buildEnv}:
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{name, pkgs ? [], profile ? ""}:
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let
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basePkgs = [
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glibc glibcLocales gcc coreutils diffutils findutils gnused gnugrep gnutar
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gzip bzip2 bashInteractive xz shadow gawk less
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];
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# Compose a global profile for the chroot environment
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profilePkg = stdenv.mkDerivation {
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name = "${name}-chrootenv-profile";
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buildCommand = ''
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mkdir -p $out/etc
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cat >> $out/etc/profile << "EOF"
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export PS1='${name}-chrootenv:\u@\h:\w\$ '
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${profile}
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EOF
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'';
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};
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paths = basePkgs ++ [ profilePkg ] ++ pkgs;
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# Composes a /usr like directory structure
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staticUsrProfile = buildEnv {
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name = "system-profile";
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inherit paths;
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};
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# References to shell scripts that set up or tear down the environment
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initSh = ./init.sh.in;
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mountSh = ./mount.sh.in;
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loadSh = ./load.sh.in;
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umountSh = ./umount.sh.in;
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destroySh = ./destroy.sh.in;
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in
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stdenv.mkDerivation {
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name = "${name}-chrootenv";
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buildCommand = ''
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mkdir -p $out/sw
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cd $out/sw
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for i in ${staticUsrProfile}/{etc,bin,lib{,32,64},sbin,var}
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do
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if [ -x "$i" ]
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then
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ln -s "$i"
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fi
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done
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ln -s ${staticUsrProfile} usr
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cd ..
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mkdir -p bin
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cd bin
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sed -e "s|@chrootEnv@|$out|g" \
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-e "s|@name@|${name}|g" \
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-e "s|@shell@|${stdenv.shell}|g" \
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${initSh} > init-${name}-chrootenv
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chmod +x init-${name}-chrootenv
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sed -e "s|@shell@|${stdenv.shell}|g" \
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-e "s|@name@|${name}|g" \
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${mountSh} > mount-${name}-chrootenv
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chmod +x mount-${name}-chrootenv
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sed -e "s|@shell@|${stdenv.shell}|g" \
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-e "s|@name@|${name}|g" \
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${loadSh} > load-${name}-chrootenv
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chmod +x load-${name}-chrootenv
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sed -e "s|@shell@|${stdenv.shell}|g" \
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-e "s|@name@|${name}|g" \
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${umountSh} > umount-${name}-chrootenv
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chmod +x umount-${name}-chrootenv
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sed -e "s|@chrootEnv@|$out|g" \
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-e "s|@shell@|${stdenv.shell}|g" \
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-e "s|@name@|${name}|g" \
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${destroySh} > destroy-${name}-chrootenv
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chmod +x destroy-${name}-chrootenv
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'';
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}
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