From 55de03e081e89ac35c4b9743435ca202457c4a92 Mon Sep 17 00:00:00 2001
From: Aron Parsons <aparsons@knackworks.com>
Date: Jan 24 2020 04:15:40 +0000
Subject: builder: add bootstrap-chroot support for mock


fixes https://pagure.io/koji/issue/1017

---

diff --git a/builder/kojid b/builder/kojid
index 0c6a256..254346e 100755
--- a/builder/kojid
+++ b/builder/kojid
@@ -534,7 +534,13 @@ class BuildRoot(object):
         return koji.pathinfo.taskrelpath(self.task_id)
 
     def init(self):
-        rv = self.mock(['--init'])
+        args = ['--init']
+
+        if 'mock.bootstrap_chroot' in self.config['extra']:
+            if self.config['extra']['mock.bootstrap_chroot']:
+                args.append('--bootstrap-chroot')
+
+        rv = self.mock(args)
 
         if rv:
             self.expire()
diff --git a/docs/source/using_the_koji_build_system.rst b/docs/source/using_the_koji_build_system.rst
index 7517307..fa9d40e 100644
--- a/docs/source/using_the_koji_build_system.rst
+++ b/docs/source/using_the_koji_build_system.rst
@@ -455,6 +455,9 @@ environment follows:
 * `mock.new_chroot` - 0/1 value. If it is set, `--new-chroot` or
   `--old-chroot` option is appended to any mock call. If it is not set,
   mock's default behavior is used.
+* `mock.bootstrap_chroot` - 0/1 value. If it is set, `--bootstrap-chroot`
+  is appended to the mock init call.  This tells mock to build in two stages,
+  using chroot rpm for creating the build chroot
 
 Using Koji to control tasks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^