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