[atomic] Add a script to create ostree repo

This is a wrapper over ostree and rpm-ostree. It is intended to be run
in either Koji or Mock chroot.

Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>

bin/pungi-make-ostree

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+
+here = sys.path[0]
+if here != '/usr/bin':
+    sys.path.insert(0, os.path.dirname(here))
+
+from pungi import atomic
+
+
+if __name__ == '__main__':
+    atomic.main()

pungi/atomic.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+
+"""
+This module contains functions required by pungi-make-atomic.
+It is expected to be runnable in Koji runroot.
+"""
+
+import argparse
+import os
+from kobo import shortcuts
+
+
+def make_log_file(log_dir, filename):
+    """Return path to log file with given name, if log_dir is set."""
+    if not log_dir:
+        return None
+    return os.path.join(log_dir, '{}.log'.format(filename))
+
+
+def init_atomic_repo(repo, log_dir=None):
+    """If the atomic repo does not exist, initialize it."""
+    log_file = make_log_file(log_dir, 'init-atomic-repo')
+    if not os.path.isdir(repo):
+        shortcuts.run(['ostree', 'init', '--repo={}'.format(repo), '--mode=archive-z2'],
+                      log_file=log_file)
+
+
+def make_ostree_repo(repo, config, log_dir=None):
+    log_file = make_log_file(log_dir, 'create-atomic-repo')
+    shortcuts.run(['rpm-ostree', 'compose', 'tree', '--repo={}'.format(repo), config],
+                  log_file=log_file)
+
+
+def run(opts):
+    init_atomic_repo(opts.atomic_repo, log_dir=opts.log_dir)
+    make_ostree_repo(opts.atomic_repo, opts.treefile, log_dir=opts.log_dir)
+
+
+def main(args=None):
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--log-dir',
+                        help='where to log output')
+
+    parser.add_argument('atomic_repo', metavar='ATOMIC_REPO',
+                        help='where to put the atomic repo')
+    parser.add_argument('--treefile', required=True,
+                        help='treefile for rpm-ostree')
+
+    opts = parser.parse_args(args)
+
+    run(opts)

tests/test_atomic_script.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+
+import unittest
+import mock
+
+import os
+import sys
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'bin'))
+
+from tests import helpers
+from pungi import atomic
+
+
+class OstreeScriptTest(helpers.PungiTestCase):
+
+    @mock.patch('kobo.shortcuts.run')
+    def test_full_run(self, run):
+        atomic.main([
+            '--log-dir={}'.format(os.path.join(self.topdir, 'logs', 'Atomic')),
+            '--treefile={}'.format(os.path.join(self.topdir, 'work', 'fedora-atomic-docker-host.json')),
+            os.path.join(self.topdir, 'atomic'),
+        ])
+        self.maxDiff = None
+        self.assertItemsEqual(
+            run.call_args_list,
+            [mock.call(['ostree', 'init', '--repo={}/atomic'.format(self.topdir), '--mode=archive-z2'],
+                       log_file=self.topdir + '/logs/Atomic/init-atomic-repo.log'),
+             mock.call(['rpm-ostree', 'compose', 'tree', '--repo={}/atomic'.format(self.topdir),
+                        self.topdir + '/work/fedora-atomic-docker-host.json'],
+                       log_file=self.topdir + '/logs/Atomic/create-atomic-repo.log')])
+
+
+if __name__ == '__main__':
+    unittest.main()