From 22bc886f1ed031646a0a4dfb6502246d8aaa2b06 Mon Sep 17 00:00:00 2001
From: Samuel Dionne-Riel <samuel@dionne-riel.com>
Date: Sun, 24 Mar 2019 16:18:31 -0400
Subject: [PATCH] outpaths.nix: Makes callable

The behaviour of the callable outpaths.nix is such that it will call
nix-env as expected to run the equivalent ofborg step, in the CWD.

The directory it is ran on can be changed using `--argstr path ...`.
---
 ofborg/src/outpaths.nix | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
 mode change 100644 => 100755 ofborg/src/outpaths.nix

diff --git a/ofborg/src/outpaths.nix b/ofborg/src/outpaths.nix
old mode 100644
new mode 100755
index 995a8ff..483fcf2
--- a/ofborg/src/outpaths.nix
+++ b/ofborg/src/outpaths.nix
@@ -1,7 +1,12 @@
-{ checkMeta }:
+#!/usr/bin/env nix-shell
+# When using as a callable script, passing `--argstr path some/path` overrides $PWD.
+#!nix-shell -p nix -i "nix-env -qaP --no-name --out-path --arg checkMeta true --argstr path $PWD -f"
+{ checkMeta
+, path ? ./.
+}:
 let
-  lib = import ./lib;
-  hydraJobs = import ./pkgs/top-level/release.nix
+  lib = import (path + "/lib");
+  hydraJobs = import (path + "/pkgs/top-level/release.nix")
     # Compromise: accuracy vs. resources needed for evaluation.
     {
       supportedSystems = [