test: initial tests for notmuch-git

[notmuch] / notmuch-git.py

diff --git a/notmuch-git.py b/notmuch-git.py
index fb42e5bf89a7bac3292e19c42b97b7c6cde5c5ae..5475d0dbd26328da380d9ec20994f395c06c6667 100644 (file)
--- a/notmuch-git.py
+++ b/notmuch-git.py
@@ -50,13 +50,9 @@ _LOG = _logging.getLogger('nmbug')
 _LOG.setLevel(_logging.WARNING)
 _LOG.addHandler(_logging.StreamHandler())
 
-NMBGIT = _os.path.expanduser(
-    _os.getenv('NMBGIT', _os.path.join('~', '.nmbug')))
-_NMBGIT = _os.path.join(NMBGIT, '.git')
-if _os.path.isdir(_NMBGIT):
-    NMBGIT = _NMBGIT
+NMBGIT = None
+TAG_PREFIX = None
 
-TAG_PREFIX = _os.getenv('NMBPREFIX', 'notmuch::')
 _HEX_ESCAPE_REGEX = _re.compile('%[0-9A-F]{2}')
 _TAG_DIRECTORY = 'tags/'
 _TAG_FILE_REGEX = _re.compile(_TAG_DIRECTORY + '(?P<id>[^/]*)/(?P<tag>[^/]*)')
@@ -77,10 +73,6 @@ def _hex_quote(string, safe='+@=:,'):
         lambda match: match.group(0).lower(),
         uppercase_escapes)
 
-
-_ENCODED_TAG_PREFIX = _hex_quote(TAG_PREFIX, safe='+@=,')  # quote ':'
-
-
 def _xapian_quote(string):
     """
     Quote a string for Xapian's QueryParser.
@@ -279,7 +271,13 @@ def clone(repository):
             wait=True)
     _git(args=['config', '--unset', 'core.worktree'], wait=True, expect=(0, 5))
     _git(args=['config', 'core.bare', 'true'], wait=True)
-    _git(args=['branch', 'config', 'origin/config'], wait=True)
+    (status, stdout, stderr) = _git(args=['show-ref', '--verify',
+                                          '--quiet',
+                                          'refs/remotes/origin/config'],
+                                    expect=(0,1),
+                                    wait=True)
+    if status == 0:
+        _git(args=['branch', 'config', 'origin/config'], wait=True)
     existing_tags = get_tags()
     if existing_tags:
         _LOG.warning(
@@ -353,6 +351,25 @@ def fetch(remote=None):
     _git(args=args, wait=True)
 
 
+def init(remote=None):
+    """
+    Create an empty nmbug repository.
+
+    This wraps 'git init' with a few extra steps to support subsequent
+    status and commit commands.
+    """
+    _spawn(args=['git', '--git-dir', NMBGIT, 'init', '--bare'], wait=True)
+    _git(args=['config', 'core.logallrefupdates', 'true'], wait=True)
+    # create an empty blob (e69de29bb2d1d6434b8b29ae775ad8c2e48c5391)
+    _git(args=['hash-object', '-w', '--stdin'], input='', wait=True)
+    _git(
+        args=[
+            'commit', '--allow-empty', '-m', 'Start a new nmbug repository'
+        ],
+        additional_env={'GIT_WORK_TREE': NMBGIT},
+        wait=True)
+
+
 def checkout():
     """
     Update the notmuch database from Git.
@@ -686,6 +703,13 @@ if __name__ == '__main__':
     parser = argparse.ArgumentParser(
         description=__doc__.strip(),
         formatter_class=argparse.RawDescriptionHelpFormatter)
+    parser.add_argument(
+        '-C', '--git-dir', metavar='REPO',
+        help='Git repository to operate on.')
+    parser.add_argument(
+        '-p', '--tag-prefix', metavar='PREFIX',
+        default = _os.getenv('NMBPREFIX', 'notmuch::'),
+        help='Prefix of tags to operate on.')
     parser.add_argument(
         '-l', '--log-level',
         choices=['critical', 'error', 'warning', 'info', 'debug'],
@@ -706,6 +730,7 @@ if __name__ == '__main__':
             'commit',
             'fetch',
             'help',
+            'init',
             'log',
             'merge',
             'pull',
@@ -795,10 +820,26 @@ if __name__ == '__main__':
 
     args = parser.parse_args()
 
+    if args.git_dir:
+        NMBGIT = args.git_dir
+    else:
+        NMBGIT = _os.path.expanduser(
+        _os.getenv('NMBGIT', _os.path.join('~', '.nmbug')))
+        _NMBGIT = _os.path.join(NMBGIT, '.git')
+        if _os.path.isdir(_NMBGIT):
+            NMBGIT = _NMBGIT
+
+    TAG_PREFIX = args.tag_prefix
+    _ENCODED_TAG_PREFIX = _hex_quote(TAG_PREFIX, safe='+@=,')  # quote ':'
+
     if args.log_level:
         level = getattr(_logging, args.log_level.upper())
         _LOG.setLevel(level)
 
+    # for test suite
+    for var in ['NMBGIT', 'NMBPREFIX', 'NOTMUCH_PROFILE', 'NOTMUCH_CONFIG' ]:
+        _LOG.debug('env {:s} = {:s}'.format(var, _os.getenv(var,'%None%')))
+
     if not getattr(args, 'func', None):
         parser.print_usage()
         _sys.exit(1)