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+# Copyright (C) 2007 Steve Borho <steve@borho.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+import os
+import tempfile
+
+import config
+from rcs import invoke, CommandError
+
+def invoke_client(*args, **kwargs):
+ directory = kwargs['directory']
+ expect = kwargs.get('expect', (0, 1))
+ cl_args = ["hg"]
+ cl_args.extend(args)
+ status,output,error = invoke(cl_args, expect, cwd=directory)
+ return status, output
+
+def add_id(filename, paranoid=False):
+ invoke_client("add", filename, directory='.')
+
+def delete_id(filename):
+ invoke_client("rm", filename, directory='.')
+
+def mkdir(path, paranoid=False):
+ os.mkdir(path)
+
+def set_file_contents(path, contents):
+ add = not os.path.exists(path)
+ file(path, "wb").write(contents)
+ if add:
+ add_id(path)
+
+def lookup_revision(revno, directory):
+ return invoke_client('log', '--rev', str(revno), '--template={node}',
+ directory=directory)[1].rstrip('\n')
+
+def export(revno, directory, revision_dir):
+ invoke_client("archive", "--rev", str(revno), revision_dir,
+ directory=directory)
+
+def find_or_make_export(revno, directory):
+ revision_id = lookup_revision(revno, directory)
+ home = os.path.expanduser("~")
+ revision_root = os.path.join(home, ".be_revs")
+ if not os.path.exists(revision_root):
+ os.mkdir(revision_root)
+ revision_dir = os.path.join(revision_root, revision_id)
+ if not os.path.exists(revision_dir):
+ export(revno, directory, revision_dir)
+ return revision_dir
+
+def hg_root(path):
+ return invoke_client("root", "-R", path, directory=None)[1].rstrip('\r')
+
+def path_in_reference(bug_dir, spec):
+ if spec is None:
+ spec = int(invoke_client('tip', '--template="{rev}"',
+ directory=bug_dir)[1])
+ rel_bug_dir = bug_dir[len(hg_root(bug_dir)):]
+ export_root = find_or_make_export(spec, directory=bug_dir)
+ return os.path.join(export_root, rel_bug_dir)
+
+
+def unlink(path):
+ try:
+ os.unlink(path)
+ delete_id(path)
+ except OSError, e:
+ if e.errno != 2:
+ raise
+
+
+def detect(path):
+ """Detect whether a directory is revision-controlled using Mercurial"""
+ path = os.path.realpath(path)
+ old_path = None
+ while True:
+ if os.path.exists(os.path.join(path, ".hg")):
+ return True
+ if path == old_path:
+ return False
+ old_path = path
+ path = os.path.dirname(path)
+
+def precommit(directory):
+ pass
+
+def commit(directory, summary, body=None):
+ if body is not None:
+ summary += '\n' + body
+ descriptor, filename = tempfile.mkstemp()
+ try:
+ temp_file = os.fdopen(descriptor, 'wb')
+ temp_file.write(summary)
+ temp_file.close()
+ invoke_client('commit', '--logfile', filename, directory=directory)
+ finally:
+ os.unlink(filename)
+
+def postcommit(directory):
+ pass
+
+name = "hg"