GitPython/git/objects/commit.py at fetch_n_push · orestis/GitPython · GitHub

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# commit.py

# This module is part of GitPython and is released under

# the BSD License: http://www.opensource.org/licenses/bsd-license.php

from git.util import RepoAliasMixin

from gitdb.object.commit import Commit as GitDB_Commit

from git.diff import Diffable

from gitdb.util import (

Iterable,

Actor

)

from gitdb import IStream

from cStringIO import StringIO

from util import parse_date

from time import altzone

import os

__all__ = ('Commit', )

class Commit(GitDB_Commit, Diffable, Iterable, RepoAliasMixin):

"""Provides additional git-command based functionality to the default gitdb commit object"""

__slots__ = tuple()

def count(self, paths='', **kwargs):

"""Count the number of commits reachable from this commit

:param paths:

is an optinal path or a list of paths restricting the return value

to commits actually containing the paths

:param kwargs:

Additional options to be passed to git-rev-list. They must not alter

the ouput style of the command, or parsing will yield incorrect results

:return: int defining the number of reachable commits"""

# yes, it makes a difference whether empty paths are given or not in our case

# as the empty paths version will ignore merge commits for some reason.

if paths:

return len(self.repo.git.rev_list(self.hexsha, '--', paths, **kwargs).splitlines())

else:

return len(self.repo.git.rev_list(self.hexsha, **kwargs).splitlines())

@property

def name_rev(self):

"""

:return:

String describing the commits hex sha based on the closest Reference.

Mostly useful for UI purposes"""

return self.repo.git.name_rev(self)

@classmethod

def iter_items(cls, repo, rev, paths='', **kwargs):

"""Find all commits matching the given criteria.

:param repo: is the Repo

:param rev: revision specifier, see git-rev-parse for viable options

:param paths:

is an optinal path or list of paths, if set only Commits that include the path

or paths will be considered

:param kwargs:

optional keyword arguments to git rev-list where

``max_count`` is the maximum number of commits to fetch

``skip`` is the number of commits to skip

``since`` all commits since i.e. '1970-01-01'

:return: iterator yielding Commit items"""

if 'pretty' in kwargs:

raise ValueError("--pretty cannot be used as parsing expects single sha's only")

# END handle pretty

args = list()

if paths:

args.extend(('--', paths))

# END if paths

proc = repo.git.rev_list(rev, args, as_process=True, **kwargs)

return cls._iter_from_process_or_stream(repo, proc)

def iter_parents(self, paths='', **kwargs):

"""Iterate _all_ parents of this commit.

:param paths:

Optional path or list of paths limiting the Commits to those that

contain at least one of the paths

:param kwargs: All arguments allowed by git-rev-list

:return: Iterator yielding Commit objects which are parents of self """

# skip ourselves

skip = kwargs.get("skip", 1)

if skip == 0: # skip ourselves

skip = 1

kwargs['skip'] = skip

return self.iter_items(self.repo, self, paths, **kwargs)

@property

def stats(self):

"""Create a git stat from changes between this commit and its first parent

or from all changes done if this is the very first commit.

:return: git.Stats"""

if not self.parents:

text = self.repo.git.diff_tree(self.hexsha, '--', numstat=True, root=True)

text2 = ""

for line in text.splitlines()[1:]:

(insertions, deletions, filename) = line.split("\t")

text2 += "%s\t%s\t%s\n" % (insertions, deletions, filename)

text = text2

else:

text = self.repo.git.diff(self.parents[0].hexsha, self.hexsha, '--', numstat=True)

return Stats._list_from_string(self.repo, text)

@classmethod

def create_from_tree(cls, repo, tree, message, parent_commits=None, head=False):

"""Commit the given tree, creating a commit object.

:param repo: Repo object the commit should be part of

:param tree: Tree object or hex or bin sha

the tree of the new commit

:param message: Commit message. It may be an empty string if no message is provided.

It will be converted to a string in any case.

:param parent_commits:

Optional Commit objects to use as parents for the new commit.

If empty list, the commit will have no parents at all and become

a root commit.

If None , the current head commit will be the parent of the

new commit object

:param head:

If True, the HEAD will be advanced to the new commit automatically.

Else the HEAD will remain pointing on the previous commit. This could

lead to undesired results when diffing files.

:return: Commit object representing the new commit

:note:

Additional information about the committer and Author are taken from the

environment or from the git configuration, see git-commit-tree for

more information"""

parents = parent_commits

if parent_commits is None:

try:

parent_commits = [ repo.head.commit ]

except ValueError:

# empty repositories have no head commit

parent_commits = list()

# END handle parent commits

# END if parent commits are unset

# retrieve all additional information, create a commit object, and

# serialize it

# Generally:

# * Environment variables override configuration values

# * Sensible defaults are set according to the git documentation

# COMMITER AND AUTHOR INFO

cr = repo.config_reader()

env = os.environ

committer = Actor.committer(cr)

author = Actor.author(cr)

# PARSE THE DATES

unix_time = int(time())

offset = altzone

author_date_str = env.get(cls.env_author_date, '')

if author_date_str:

author_time, author_offset = parse_date(author_date_str)

else:

author_time, author_offset = unix_time, offset

# END set author time

committer_date_str = env.get(cls.env_committer_date, '')

if committer_date_str:

committer_time, committer_offset = parse_date(committer_date_str)

else:

committer_time, committer_offset = unix_time, offset

# END set committer time

# assume utf8 encoding

enc_section, enc_option = cls.conf_encoding.split('.')

conf_encoding = cr.get_value(enc_section, enc_option, cls.default_encoding)

# if the tree is no object, make sure we create one - otherwise

# the created commit object is invalid

if isinstance(tree, str):

tree = repo.tree(tree)

# END tree conversion

# CREATE NEW COMMIT

new_commit = cls(repo, cls.NULL_BIN_SHA, tree,

author, author_time, author_offset,

committer, committer_time, committer_offset,

message, parent_commits, conf_encoding)

stream = StringIO()

new_commit._serialize(stream)

streamlen = stream.tell()

stream.seek(0)

istream = repo.odb.store(IStream(cls.type, streamlen, stream))

new_commit.binsha = istream.binsha

if head:

# need late import here, importing git at the very beginning throws

# as well ...

import git.refs

try:

repo.head.set_commit(new_commit, logmsg="commit: %s" % message)

except ValueError:

# head is not yet set to the ref our HEAD points to

# Happens on first commit

import git.refs

master = git.refs.Head.create(repo, repo.head.ref, new_commit, logmsg="commit (initial): %s" % message)

repo.head.set_reference(master, logmsg='commit: Switching to %s' % master)

# END handle empty repositories

# END advance head handling

return new_commit

#} END serializable implementation

GitPython/git/objects/commit.py at fetch_n_push · orestis/GitPython · GitHub

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