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{ lib, callPackage, runCommandLocal, writeScript, stdenv, coreutils }:
let buildFHSEnv = callPackage ./env.nix { }; in
args@{ name, version ? null, runScript ? "bash", extraInstallCommands ? "", meta ? {}, passthru ? {}, ... }:
let
env = buildFHSEnv (removeAttrs args [ "version" "runScript" "extraInstallCommands" "meta" "passthru" ]);
chrootenv = callPackage ./chrootenv {};
init = run: writeScript "${name}-init" ''
#! ${stdenv.shell}
for i in ${env}/* /host/*; do
path="/''${i##*/}"
[ -e "$path" ] || ${coreutils}/bin/ln -s "$i" "$path"
done
[ -d "$1" ] && [ -r "$1" ] && cd "$1"
shift
source /etc/profile
exec ${run} "$@"
'';
versionStr = lib.optionalString (version != null) ("-" + version);
nameAndVersion = name + versionStr;
in runCommandLocal nameAndVersion {
inherit meta;
passthru = passthru // {
env = runCommandLocal "${name}-shell-env" {
shellHook = ''
exec ${chrootenv}/bin/chrootenv ${init runScript} "$(pwd)"
'';
} ''
echo >&2 ""
echo >&2 "*** User chroot 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
echo >&2 ""
exit 1
'';
};
} ''
mkdir -p $out/bin
cat <<EOF >$out/bin/${name}
#! ${stdenv.shell}
exec ${chrootenv}/bin/chrootenv ${init runScript} "\$(pwd)" "\$@"
EOF
chmod +x $out/bin/${name}
${extraInstallCommands}
''
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