git-commit-vandalism/git_remote_helpers/git/importer.py
John Keeping 29cf0d3873 git_remote_helpers: fix input when running under Python 3
Although 2to3 will fix most issues in Python 2 code to make it run under
Python 3, it does not handle the new strict separation between byte
strings and unicode strings.  There is one instance in
git_remote_helpers where we are caught by this, which is when reading
refs from "git for-each-ref".

Fix this by operating on the returned string as a byte string rather
than a unicode string.  As this method is currently only used internally
by the class this does not affect code anywhere else.

Note that we cannot use byte strings in the source as the 'b' prefix is
not supported before Python 2.7 so in order to maintain compatibility
with the maximum range of Python versions we use an explicit call to
encode().

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-20 16:34:32 -08:00

70 lines
1.9 KiB
Python

import os
import subprocess
from git_remote_helpers.util import check_call, check_output
class GitImporter(object):
"""An importer for testgit repositories.
This importer simply delegates to git fast-import.
"""
def __init__(self, repo):
"""Creates a new importer for the specified repo.
"""
self.repo = repo
def get_refs(self, gitdir):
"""Returns a dictionary with refs.
Note that the keys in the returned dictionary are byte strings as
read from git.
"""
args = ["git", "--git-dir=" + gitdir, "for-each-ref", "refs/heads"]
lines = check_output(args).strip().split('\n'.encode('ascii'))
refs = {}
for line in lines:
value, name = line.split(' '.encode('ascii'))
name = name.strip('commit\t'.encode('ascii'))
refs[name] = value
return refs
def do_import(self, base):
"""Imports a fast-import stream to the given directory.
Simply delegates to git fast-import.
"""
dirname = self.repo.get_base_path(base)
if self.repo.local:
gitdir = self.repo.gitpath
else:
gitdir = os.path.abspath(os.path.join(dirname, '.git'))
path = os.path.abspath(os.path.join(dirname, 'testgit.marks'))
if not os.path.exists(dirname):
os.makedirs(dirname)
refs_before = self.get_refs(gitdir)
args = ["git", "--git-dir=" + gitdir, "fast-import", "--quiet", "--export-marks=" + path]
if os.path.exists(path):
args.append("--import-marks=" + path)
check_call(args)
refs_after = self.get_refs(gitdir)
changed = {}
for name, value in refs_after.iteritems():
if refs_before.get(name) == value:
continue
changed[name] = value
return changed