dulwich.patch module

Classes for dealing with git am-style patches.

These patches are basically unified diffs with some extra metadata tacked on.

dulwich.patch.gen_diff_header(paths, modes, shas)

Write a blob diff header.

Parameters:
  • paths – Tuple with old and new path
  • modes – Tuple with old and new modes
  • shas – Tuple with old and new shas
dulwich.patch.get_summary(commit)

Determine the summary line for use in a filename.

Parameters:commit – Commit
Returns:Summary string
dulwich.patch.git_am_patch_split(f, encoding=None)

Parse a git-am-style patch and split it up into bits.

Parameters:
  • f – File-like object to parse
  • encoding – Encoding to use when creating Git objects
Returns:

Tuple with commit object, diff contents and git version

dulwich.patch.is_binary(content)

See if the first few bytes contain any null characters.

Parameters:content – Bytestring to check for binary content
dulwich.patch.parse_patch_message(msg, encoding=None)

Extract a Commit object and patch from an e-mail message.

Parameters:
  • msg – An email message (email.message.Message)
  • encoding – Encoding to use to encode Git commits
Returns:

Tuple with commit object, diff contents and git version

dulwich.patch.patch_filename(p, root)
dulwich.patch.shortid(hexsha)
dulwich.patch.unified_diff(a, b, fromfile='', tofile='', fromfiledate='', tofiledate='', n=3, lineterm='\n')

difflib.unified_diff that can detect “No newline at end of file” as original “git diff” does.

Based on the same function in Python2.7 difflib.py

dulwich.patch.write_blob_diff(f, old_file, new_file)

Write blob diff.

Parameters:
  • f – File-like object to write to
  • old_file – (path, mode, hexsha) tuple (None if nonexisting)
  • new_file – (path, mode, hexsha) tuple (None if nonexisting)
Note:

The use of write_object_diff is recommended over this function.

dulwich.patch.write_commit_patch(f, commit, contents, progress, version=None, encoding=None)

Write a individual file patch.

Parameters:
  • commit – Commit object
  • progress – Tuple with current patch number and total.
Returns:

tuple with filename and contents

dulwich.patch.write_object_diff(f, store, old_file, new_file, diff_binary=False)

Write the diff for an object.

Parameters:
  • f – File-like object to write to
  • store – Store to retrieve objects from, if necessary
  • old_file – (path, mode, hexsha) tuple
  • new_file – (path, mode, hexsha) tuple
  • diff_binary – Whether to diff files even if they are considered binary files by is_binary().
Note:

the tuple elements should be None for nonexistant files

dulwich.patch.write_tree_diff(f, store, old_tree, new_tree, diff_binary=False)

Write tree diff.

Parameters:
  • f – File-like object to write to.
  • old_tree – Old tree id
  • new_tree – New tree id
  • diff_binary – Whether to diff files even if they are considered binary files by is_binary().