/brz/remove-bazaar

# Copyright (C) 2006, 2007 Canonical Ltd

#

# 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

"""The basic test suite for bzr-git."""

import subprocess

import time

from bzrlib import (

    osutils,

    tests,

    trace,

    )

from  bzrlib.plugins.git import errors

TestCase = tests.TestCase

TestCaseInTempDir = tests.TestCaseInTempDir

TestCaseWithTransport = tests.TestCaseWithTransport

TestCaseWithMemoryTransport = tests.TestCaseWithMemoryTransport

class _GitCommandFeature(tests.Feature):

    def _probe(self):

        try:

            p = subprocess.Popen(['git', '--version'], stdout=subprocess.PIPE)

        except IOError:

            return False

        out, err = p.communicate()

        trace.mutter('Using: %s', out.rstrip('\n'))

        return True

    def feature_name(self):

        return 'git'

GitCommandFeature = _GitCommandFeature()

def run_git(*args):

    cmd = ['git'] + list(args)

    p = subprocess.Popen(cmd,

                         stdout=subprocess.PIPE,

                         stderr=subprocess.PIPE)

    out, err = p.communicate()

    if p.returncode != 0:

        raise AssertionError('Bad return code: %d for %s:\n%s'

                             % (p.returncode, ' '.join(cmd), err))

    return out

class GitBranchBuilder(object):

    def __init__(self, stream=None):

        self.commit_info = []

        self.stream = stream

        self._process = None

        self._counter = 0

        self._branch = 'refs/heads/master'

        if stream is None:

            # Write the marks file into the git sandbox.

            self._marks_file_name = osutils.abspath('marks')

            self._process = subprocess.Popen(

                ['git', 'fast-import', '--quiet',

                 # GIT doesn't support '--export-marks foo'

                 # it only supports '--export-marks=foo'

                 # And gives a 'unknown option' otherwise.

                 '--export-marks=' + self._marks_file_name,

                ],

                stdout=subprocess.PIPE,

                stderr=subprocess.PIPE,

                stdin=subprocess.PIPE,

                )

            self.stream = self._process.stdin

        else:

            self._process = None

    def set_branch(self, branch):

        """Set the branch we are committing."""

        self._branch = branch

    def _write(self, text):

        try:

            self.stream.write(text)

        except IOError, e:

            if self._process is None:

                raise

            raise errors.GitCommandError(self._process.returncode,

                                         'git fast-import',

                                         self._process.stderr.read())

    def _writelines(self, lines):

        try:

            self.stream.writelines(lines)

        except IOError, e:

            if self._process is None:

                raise

            raise errors.GitCommandError(self._process.returncode,

                                         'git fast-import',

                                         self._process.stderr.read())

    def _create_blob(self, content):

        self._counter += 1

        self._write('blob\n')

        self._write('mark :%d\n' % (self._counter,))

        self._write('data %d\n' % (len(content),))

        self._write(content)

        self._write('\n')

        return self._counter

    def set_file(self, path, content, executable):

        """Create or update content at a given path."""

        mark = self._create_blob(content)

        if executable:

            mode = '100755'

        else:

            mode = '100644'

        self.commit_info.append('M %s :%d %s\n'

                                % (mode, mark, self._encode_path(path)))

    def set_link(self, path, link_target):

        """Create or update a link at a given path."""

        mark = self._create_blob(link_target)

        self.commit_info.append('M 120000 :%d %s\n'

                                % (mark, self._encode_path(path)))

    def delete_entry(self, path):

        """This will delete files or symlinks at the given location."""

        self.commit_info.append('D %s\n' % (self._encode_path(path),))

    @staticmethod

    def _encode_path(path):

        if '\n' in path or path[0] == '"':

            path = path.replace('\\', '\\\\')

            path = path.replace('\n', '\\n')

            path = path.replace('"', '\\"')

            path = '"' + path + '"'

        return path.encode('utf-8')

    # TODO: Author

    # TODO: Author timestamp+timezone

    def commit(self, committer, message, timestamp=None,

               timezone='+0000', author=None,

               merge=None, base=None):

        """Commit the new content.

        :param committer: The name and address for the committer

        :param message: The commit message

        :param timestamp: The timestamp for the commit

        :param timezone: The timezone of the commit, such as '+0000' or '-1000'

        :param author: The name and address of the author (if different from

            committer)

        :param merge: A list of marks if this should merge in another commit

        :param base: An id for the base revision (primary parent) if that

            is not the last commit.

        :return: A mark which can be used in the future to reference this

            commit.

        """

        self._counter += 1

        mark = self._counter

        if timestamp is None:

            timestamp = int(time.time())

        self._write('commit %s\n' % (self._branch,))

        self._write('mark :%d\n' % (mark,))

        self._write('committer %s %s %s\n'

                    % (committer, timestamp, timezone))

        message = message.encode('UTF-8')

        self._write('data %d\n' % (len(message),))

        self._write(message)

        self._write('\n')

        if base is not None:

            self._write('from :%d\n' % (base,))

        if merge is not None:

            for m in merge:

                self._write('merge :%d\n' % (m,))

        self._writelines(self.commit_info)

        self._write('\n')

        self.commit_info = []

        return mark

    def reset(self, ref=None, mark=None):

        """Create or recreate the named branch.

        :param ref: branch name, defaults to the current branch.

        :param mark: commit the branch will point to.

        """

        if ref is None:

            ref = self._branch

        self._write('reset %s\n' % (ref,))

        if mark is not None:

            self._write('from :%d\n' % mark)

        self._write('\n')

    def finish(self):

        """We are finished building, close the stream, get the id mapping"""

        self.stream.close()

        if self._process is None:

            return {}

        if self._process.wait() != 0:

            raise errors.GitCommandError(self._process.returncode,

                                         'git fast-import',

                                         self._process.stderr.read())

        marks_file = open(self._marks_file_name)

        mapping = {}

        for line in marks_file:

            mark, shasum = line.split()

            assert mark.startswith(':')

            mapping[int(mark[1:])] = shasum

        marks_file.close()

        return mapping

def test_suite():

    loader = tests.TestLoader()

    suite = tests.TestSuite()

    testmod_names = [

        'test_builder',

        'test_git_branch',

        'test_git_dir',

        'test_git_repository',

        'test_model',

        'test_ids',

        'test_blackbox',

        ]

    testmod_names = ['%s.%s' % (__name__, t) for t in testmod_names]

    suite.addTests(loader.loadTestsFromModuleNames(testmod_names))

    return suite