diff --git a/dulwich/porcelain.py b/dulwich/porcelain.py index e3cf4262..5fd511d5 100644 --- a/dulwich/porcelain.py +++ b/dulwich/porcelain.py @@ -1,1933 +1,1937 @@ # porcelain.py -- Porcelain-like layer on top of Dulwich # Copyright (C) 2013 Jelmer Vernooij # # Dulwich is dual-licensed under the Apache License, Version 2.0 and the GNU # General Public License as public by the Free Software Foundation; version 2.0 # or (at your option) any later version. You can redistribute it and/or # modify it under the terms of either of these two licenses. # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # You should have received a copy of the licenses; if not, see # for a copy of the GNU General Public License # and for a copy of the Apache # License, Version 2.0. # """Simple wrapper that provides porcelain-like functions on top of Dulwich. Currently implemented: * archive * add * branch{_create,_delete,_list} * check-ignore * checkout * clone * commit * commit-tree * daemon * describe * diff-tree * fetch * init * ls-files * ls-remote * ls-tree * pull * push * rm * remote{_add} * receive-pack * reset * rev-list * tag{_create,_delete,_list} * upload-pack * update-server-info * status * symbolic-ref These functions are meant to behave similarly to the git subcommands. Differences in behaviour are considered bugs. +Note: one of the consequences of this is that paths tend to be +interpreted relative to the current working directory rather than relative +to the repository root. + Functions should generally accept both unicode strings and bytestrings """ from collections import namedtuple from contextlib import ( closing, contextmanager, ) from io import BytesIO, RawIOBase import datetime import os from pathlib import Path import posixpath import shutil import stat import sys import time from typing import ( Dict, Optional, Tuple, Union, ) from dulwich.archive import ( tar_stream, ) from dulwich.client import ( get_transport_and_path, ) from dulwich.config import ( StackedConfig, ) from dulwich.diff_tree import ( CHANGE_ADD, CHANGE_DELETE, CHANGE_MODIFY, CHANGE_RENAME, CHANGE_COPY, RENAME_CHANGE_TYPES, ) from dulwich.errors import ( SendPackError, ) from dulwich.graph import ( can_fast_forward, ) from dulwich.ignore import IgnoreFilterManager from dulwich.index import ( blob_from_path_and_stat, get_unstaged_changes, ) from dulwich.object_store import ( tree_lookup_path, ) from dulwich.objects import ( Commit, Tag, format_timezone, parse_timezone, pretty_format_tree_entry, ) from dulwich.objectspec import ( parse_commit, parse_object, parse_ref, parse_reftuples, parse_tree, ) from dulwich.pack import ( write_pack_index, write_pack_objects, ) from dulwich.patch import write_tree_diff from dulwich.protocol import ( Protocol, ZERO_SHA, ) from dulwich.refs import ( ANNOTATED_TAG_SUFFIX, LOCAL_BRANCH_PREFIX, strip_peeled_refs, RefsContainer, ) from dulwich.repo import BaseRepo, Repo from dulwich.server import ( FileSystemBackend, TCPGitServer, ReceivePackHandler, UploadPackHandler, update_server_info as server_update_server_info, ) # Module level tuple definition for status output GitStatus = namedtuple("GitStatus", "staged unstaged untracked") class NoneStream(RawIOBase): """Fallback if stdout or stderr are unavailable, does nothing.""" def read(self, size=-1): return None def readall(self): return None def readinto(self, b): return None def write(self, b): return None default_bytes_out_stream = getattr(sys.stdout, "buffer", None) or NoneStream() default_bytes_err_stream = getattr(sys.stderr, "buffer", None) or NoneStream() DEFAULT_ENCODING = "utf-8" class Error(Exception): """Porcelain-based error. """ def __init__(self, msg, inner=None): super(Error, self).__init__(msg) self.inner = inner class RemoteExists(Error): """Raised when the remote already exists.""" def open_repo(path_or_repo): """Open an argument that can be a repository or a path for a repository.""" if isinstance(path_or_repo, BaseRepo): return path_or_repo return Repo(path_or_repo) @contextmanager def _noop_context_manager(obj): """Context manager that has the same api as closing but does nothing.""" yield obj def open_repo_closing(path_or_repo): """Open an argument that can be a repository or a path for a repository. returns a context manager that will close the repo on exit if the argument is a path, else does nothing if the argument is a repo. """ if isinstance(path_or_repo, BaseRepo): return _noop_context_manager(path_or_repo) return closing(Repo(path_or_repo)) def path_to_tree_path(repopath, path, tree_encoding=DEFAULT_ENCODING): """Convert a path to a path usable in an index, e.g. bytes and relative to the repository root. Args: repopath: Repository path, absolute or relative to the cwd path: A path, absolute or relative to the cwd Returns: A path formatted for use in e.g. an index """ # Pathlib resolve before Python 3.6 could raises FileNotFoundError in case # there is no file matching the path so we reuse the old implementation for # Python 3.5 if sys.version_info < (3, 6): if not isinstance(path, bytes): path = os.fsencode(path) if not isinstance(repopath, bytes): repopath = os.fsencode(repopath) treepath = os.path.relpath(path, repopath) if treepath.startswith(b".."): err_msg = "Path %r not in repo path (%r)" % (path, repopath) raise ValueError(err_msg) if os.path.sep != "/": treepath = treepath.replace(os.path.sep.encode("ascii"), b"/") return treepath else: # Resolve might returns a relative path on Windows # https://bugs.python.org/issue38671 if sys.platform == "win32": path = os.path.abspath(path) path = Path(path) resolved_path = path.resolve() # Resolve and abspath seems to behave differently regarding symlinks, # as we are doing abspath on the file path, we need to do the same on # the repo path or they might not match if sys.platform == "win32": repopath = os.path.abspath(repopath) repopath = Path(repopath).resolve() try: relpath = resolved_path.relative_to(repopath) except ValueError: # If path is a symlink that points to a file outside the repo, we # want the relpath for the link itself, not the resolved target if path.is_symlink(): parent = path.parent.resolve() relpath = (parent / path.name).relative_to(repopath) else: raise if sys.platform == "win32": return str(relpath).replace(os.path.sep, "/").encode(tree_encoding) else: return bytes(relpath) class DivergedBranches(Error): """Branches have diverged and fast-forward is not possible.""" def check_diverged(repo, current_sha, new_sha): """Check if updating to a sha can be done with fast forwarding. Args: repo: Repository object current_sha: Current head sha new_sha: New head sha """ try: can = can_fast_forward(repo, current_sha, new_sha) except KeyError: can = False if not can: raise DivergedBranches(current_sha, new_sha) def archive( repo, committish=None, outstream=default_bytes_out_stream, errstream=default_bytes_err_stream, ): """Create an archive. Args: repo: Path of repository for which to generate an archive. committish: Commit SHA1 or ref to use outstream: Output stream (defaults to stdout) errstream: Error stream (defaults to stderr) """ if committish is None: committish = "HEAD" with open_repo_closing(repo) as repo_obj: c = parse_commit(repo_obj, committish) for chunk in tar_stream( repo_obj.object_store, repo_obj.object_store[c.tree], c.commit_time ): outstream.write(chunk) def update_server_info(repo="."): """Update server info files for a repository. Args: repo: path to the repository """ with open_repo_closing(repo) as r: server_update_server_info(r) def symbolic_ref(repo, ref_name, force=False): """Set git symbolic ref into HEAD. Args: repo: path to the repository ref_name: short name of the new ref force: force settings without checking if it exists in refs/heads """ with open_repo_closing(repo) as repo_obj: ref_path = _make_branch_ref(ref_name) if not force and ref_path not in repo_obj.refs.keys(): raise Error("fatal: ref `%s` is not a ref" % ref_name) repo_obj.refs.set_symbolic_ref(b"HEAD", ref_path) def commit( repo=".", message=None, author=None, committer=None, encoding=None, no_verify=False, ): """Create a new commit. Args: repo: Path to repository message: Optional commit message author: Optional author name and email committer: Optional committer name and email no_verify: Skip pre-commit and commit-msg hooks Returns: SHA1 of the new commit """ # FIXME: Support --all argument # FIXME: Support --signoff argument if getattr(message, "encode", None): message = message.encode(encoding or DEFAULT_ENCODING) if getattr(author, "encode", None): author = author.encode(encoding or DEFAULT_ENCODING) if getattr(committer, "encode", None): committer = committer.encode(encoding or DEFAULT_ENCODING) with open_repo_closing(repo) as r: return r.do_commit( message=message, author=author, committer=committer, encoding=encoding, no_verify=no_verify, ) def commit_tree(repo, tree, message=None, author=None, committer=None): """Create a new commit object. Args: repo: Path to repository tree: An existing tree object author: Optional author name and email committer: Optional committer name and email """ with open_repo_closing(repo) as r: return r.do_commit( message=message, tree=tree, committer=committer, author=author ) def init(path=".", bare=False): """Create a new git repository. Args: path: Path to repository. bare: Whether to create a bare repository. Returns: A Repo instance """ if not os.path.exists(path): os.mkdir(path) if bare: return Repo.init_bare(path) else: return Repo.init(path) def clone( source, target=None, bare=False, checkout=None, errstream=default_bytes_err_stream, outstream=None, origin=b"origin", depth=None, **kwargs ): """Clone a local or remote git repository. Args: source: Path or URL for source repository target: Path to target repository (optional) bare: Whether or not to create a bare repository checkout: Whether or not to check-out HEAD after cloning errstream: Optional stream to write progress to outstream: Optional stream to write progress to (deprecated) origin: Name of remote from the repository used to clone depth: Depth to fetch at Returns: The new repository """ # TODO(jelmer): This code overlaps quite a bit with Repo.clone if outstream is not None: import warnings warnings.warn( "outstream= has been deprecated in favour of errstream=.", DeprecationWarning, stacklevel=3, ) errstream = outstream if checkout is None: checkout = not bare if checkout and bare: raise Error("checkout and bare are incompatible") if target is None: target = source.split("/")[-1] if not os.path.exists(target): os.mkdir(target) if bare: r = Repo.init_bare(target) else: r = Repo.init(target) reflog_message = b"clone: from " + source.encode("utf-8") try: target_config = r.get_config() if not isinstance(source, bytes): source = source.encode(DEFAULT_ENCODING) target_config.set((b"remote", origin), b"url", source) target_config.set( (b"remote", origin), b"fetch", b"+refs/heads/*:refs/remotes/" + origin + b"/*", ) target_config.write_to_path() fetch_result = fetch( r, origin, errstream=errstream, message=reflog_message, depth=depth, **kwargs ) for key, target in fetch_result.symrefs.items(): r.refs.set_symbolic_ref(key, target) try: head = r[fetch_result.refs[b"HEAD"]] except KeyError: head = None else: r[b"HEAD"] = head.id if checkout and not bare and head is not None: errstream.write(b"Checking out " + head.id + b"\n") r.reset_index(head.tree) except BaseException: shutil.rmtree(target) r.close() raise return r def add(repo=".", paths=None): """Add files to the staging area. Args: repo: Repository for the files paths: Paths to add. No value passed stages all modified files. Returns: Tuple with set of added files and ignored files If the repository contains ignored directories, the returned set will contain the path to an ignored directory (with trailing slash). Individual files within ignored directories will not be returned. """ ignored = set() with open_repo_closing(repo) as r: repo_path = Path(r.path).resolve() ignore_manager = IgnoreFilterManager.from_repo(r) if not paths: paths = list( get_untracked_paths( str(Path(os.getcwd()).resolve()), str(repo_path), r.open_index(), ) ) relpaths = [] if not isinstance(paths, list): paths = [paths] for p in paths: path = Path(p) relpath = str(path.resolve().relative_to(repo_path)) # FIXME: Support patterns if path.is_dir(): relpath = os.path.join(relpath, "") if ignore_manager.is_ignored(relpath): ignored.add(relpath) continue relpaths.append(relpath) r.stage(relpaths) return (relpaths, ignored) def _is_subdir(subdir, parentdir): """Check whether subdir is parentdir or a subdir of parentdir If parentdir or subdir is a relative path, it will be disamgibuated relative to the pwd. """ parentdir_abs = os.path.realpath(parentdir) + os.path.sep subdir_abs = os.path.realpath(subdir) + os.path.sep return subdir_abs.startswith(parentdir_abs) # TODO: option to remove ignored files also, in line with `git clean -fdx` def clean(repo=".", target_dir=None): """Remove any untracked files from the target directory recursively Equivalent to running `git clean -fd` in target_dir. Args: repo: Repository where the files may be tracked target_dir: Directory to clean - current directory if None """ if target_dir is None: target_dir = os.getcwd() with open_repo_closing(repo) as r: if not _is_subdir(target_dir, r.path): raise Error("target_dir must be in the repo's working dir") config = r.get_config_stack() require_force = config.get_boolean( # noqa: F841 (b"clean",), b"requireForce", True ) # TODO(jelmer): if require_force is set, then make sure that -f, -i or # -n is specified. index = r.open_index() ignore_manager = IgnoreFilterManager.from_repo(r) paths_in_wd = _walk_working_dir_paths(target_dir, r.path) # Reverse file visit order, so that files and subdirectories are # removed before containing directory for ap, is_dir in reversed(list(paths_in_wd)): if is_dir: # All subdirectories and files have been removed if untracked, # so dir contains no tracked files iff it is empty. is_empty = len(os.listdir(ap)) == 0 if is_empty: os.rmdir(ap) else: ip = path_to_tree_path(r.path, ap) is_tracked = ip in index rp = os.path.relpath(ap, r.path) is_ignored = ignore_manager.is_ignored(rp) if not is_tracked and not is_ignored: os.remove(ap) def remove(repo=".", paths=None, cached=False): """Remove files from the staging area. Args: repo: Repository for the files paths: Paths to remove """ with open_repo_closing(repo) as r: index = r.open_index() for p in paths: full_path = os.fsencode(os.path.abspath(p)) tree_path = path_to_tree_path(r.path, p) try: index_sha = index[tree_path].sha except KeyError: raise Error("%s did not match any files" % p) if not cached: try: st = os.lstat(full_path) except OSError: pass else: try: blob = blob_from_path_and_stat(full_path, st) except IOError: pass else: try: committed_sha = tree_lookup_path( r.__getitem__, r[r.head()].tree, tree_path )[1] except KeyError: committed_sha = None if blob.id != index_sha and index_sha != committed_sha: raise Error( "file has staged content differing " "from both the file and head: %s" % p ) if index_sha != committed_sha: raise Error("file has staged changes: %s" % p) os.remove(full_path) del index[tree_path] index.write() rm = remove def commit_decode(commit, contents, default_encoding=DEFAULT_ENCODING): if commit.encoding: encoding = commit.encoding.decode("ascii") else: encoding = default_encoding return contents.decode(encoding, "replace") def commit_encode(commit, contents, default_encoding=DEFAULT_ENCODING): if commit.encoding: encoding = commit.encoding.decode("ascii") else: encoding = default_encoding return contents.encode(encoding) def print_commit(commit, decode, outstream=sys.stdout): """Write a human-readable commit log entry. Args: commit: A `Commit` object outstream: A stream file to write to """ outstream.write("-" * 50 + "\n") outstream.write("commit: " + commit.id.decode("ascii") + "\n") if len(commit.parents) > 1: outstream.write( "merge: " + "...".join([c.decode("ascii") for c in commit.parents[1:]]) + "\n" ) outstream.write("Author: " + decode(commit.author) + "\n") if commit.author != commit.committer: outstream.write("Committer: " + decode(commit.committer) + "\n") time_tuple = time.gmtime(commit.author_time + commit.author_timezone) time_str = time.strftime("%a %b %d %Y %H:%M:%S", time_tuple) timezone_str = format_timezone(commit.author_timezone).decode("ascii") outstream.write("Date: " + time_str + " " + timezone_str + "\n") outstream.write("\n") outstream.write(decode(commit.message) + "\n") outstream.write("\n") def print_tag(tag, decode, outstream=sys.stdout): """Write a human-readable tag. Args: tag: A `Tag` object decode: Function for decoding bytes to unicode string outstream: A stream to write to """ outstream.write("Tagger: " + decode(tag.tagger) + "\n") time_tuple = time.gmtime(tag.tag_time + tag.tag_timezone) time_str = time.strftime("%a %b %d %Y %H:%M:%S", time_tuple) timezone_str = format_timezone(tag.tag_timezone).decode("ascii") outstream.write("Date: " + time_str + " " + timezone_str + "\n") outstream.write("\n") outstream.write(decode(tag.message)) outstream.write("\n") def show_blob(repo, blob, decode, outstream=sys.stdout): """Write a blob to a stream. Args: repo: A `Repo` object blob: A `Blob` object decode: Function for decoding bytes to unicode string outstream: A stream file to write to """ outstream.write(decode(blob.data)) def show_commit(repo, commit, decode, outstream=sys.stdout): """Show a commit to a stream. Args: repo: A `Repo` object commit: A `Commit` object decode: Function for decoding bytes to unicode string outstream: Stream to write to """ print_commit(commit, decode=decode, outstream=outstream) if commit.parents: parent_commit = repo[commit.parents[0]] base_tree = parent_commit.tree else: base_tree = None diffstream = BytesIO() write_tree_diff(diffstream, repo.object_store, base_tree, commit.tree) diffstream.seek(0) outstream.write(commit_decode(commit, diffstream.getvalue())) def show_tree(repo, tree, decode, outstream=sys.stdout): """Print a tree to a stream. Args: repo: A `Repo` object tree: A `Tree` object decode: Function for decoding bytes to unicode string outstream: Stream to write to """ for n in tree: outstream.write(decode(n) + "\n") def show_tag(repo, tag, decode, outstream=sys.stdout): """Print a tag to a stream. Args: repo: A `Repo` object tag: A `Tag` object decode: Function for decoding bytes to unicode string outstream: Stream to write to """ print_tag(tag, decode, outstream) show_object(repo, repo[tag.object[1]], decode, outstream) def show_object(repo, obj, decode, outstream): return { b"tree": show_tree, b"blob": show_blob, b"commit": show_commit, b"tag": show_tag, }[obj.type_name](repo, obj, decode, outstream) def print_name_status(changes): """Print a simple status summary, listing changed files.""" for change in changes: if not change: continue if isinstance(change, list): change = change[0] if change.type == CHANGE_ADD: path1 = change.new.path path2 = "" kind = "A" elif change.type == CHANGE_DELETE: path1 = change.old.path path2 = "" kind = "D" elif change.type == CHANGE_MODIFY: path1 = change.new.path path2 = "" kind = "M" elif change.type in RENAME_CHANGE_TYPES: path1 = change.old.path path2 = change.new.path if change.type == CHANGE_RENAME: kind = "R" elif change.type == CHANGE_COPY: kind = "C" yield "%-8s%-20s%-20s" % (kind, path1, path2) def log( repo=".", paths=None, outstream=sys.stdout, max_entries=None, reverse=False, name_status=False, ): """Write commit logs. Args: repo: Path to repository paths: Optional set of specific paths to print entries for outstream: Stream to write log output to reverse: Reverse order in which entries are printed name_status: Print name status max_entries: Optional maximum number of entries to display """ with open_repo_closing(repo) as r: walker = r.get_walker(max_entries=max_entries, paths=paths, reverse=reverse) for entry in walker: def decode(x): return commit_decode(entry.commit, x) print_commit(entry.commit, decode, outstream) if name_status: outstream.writelines( [line + "\n" for line in print_name_status(entry.changes())] ) # TODO(jelmer): better default for encoding? def show( repo=".", objects=None, outstream=sys.stdout, default_encoding=DEFAULT_ENCODING, ): """Print the changes in a commit. Args: repo: Path to repository objects: Objects to show (defaults to [HEAD]) outstream: Stream to write to default_encoding: Default encoding to use if none is set in the commit """ if objects is None: objects = ["HEAD"] if not isinstance(objects, list): objects = [objects] with open_repo_closing(repo) as r: for objectish in objects: o = parse_object(r, objectish) if isinstance(o, Commit): def decode(x): return commit_decode(o, x, default_encoding) else: def decode(x): return x.decode(default_encoding) show_object(r, o, decode, outstream) def diff_tree(repo, old_tree, new_tree, outstream=sys.stdout): """Compares the content and mode of blobs found via two tree objects. Args: repo: Path to repository old_tree: Id of old tree new_tree: Id of new tree outstream: Stream to write to """ with open_repo_closing(repo) as r: write_tree_diff(outstream, r.object_store, old_tree, new_tree) def rev_list(repo, commits, outstream=sys.stdout): """Lists commit objects in reverse chronological order. Args: repo: Path to repository commits: Commits over which to iterate outstream: Stream to write to """ with open_repo_closing(repo) as r: for entry in r.get_walker(include=[r[c].id for c in commits]): outstream.write(entry.commit.id + b"\n") def tag(*args, **kwargs): import warnings warnings.warn( "tag has been deprecated in favour of tag_create.", DeprecationWarning ) return tag_create(*args, **kwargs) def tag_create( repo, tag, author=None, message=None, annotated=False, objectish="HEAD", tag_time=None, tag_timezone=None, sign=False, ): """Creates a tag in git via dulwich calls: Args: repo: Path to repository tag: tag string author: tag author (optional, if annotated is set) message: tag message (optional) annotated: whether to create an annotated tag objectish: object the tag should point at, defaults to HEAD tag_time: Optional time for annotated tag tag_timezone: Optional timezone for annotated tag sign: GPG Sign the tag (bool, defaults to False, pass True to use default GPG key, pass a str containing Key ID to use a specific GPG key) """ with open_repo_closing(repo) as r: object = parse_object(r, objectish) if annotated: # Create the tag object tag_obj = Tag() if author is None: # TODO(jelmer): Don't use repo private method. author = r._get_user_identity(r.get_config_stack()) tag_obj.tagger = author tag_obj.message = message + "\n".encode() tag_obj.name = tag tag_obj.object = (type(object), object.id) if tag_time is None: tag_time = int(time.time()) tag_obj.tag_time = tag_time if tag_timezone is None: # TODO(jelmer) Use current user timezone rather than UTC tag_timezone = 0 elif isinstance(tag_timezone, str): tag_timezone = parse_timezone(tag_timezone) tag_obj.tag_timezone = tag_timezone if sign: tag_obj.sign(sign if isinstance(sign, str) else None) r.object_store.add_object(tag_obj) tag_id = tag_obj.id else: tag_id = object.id r.refs[_make_tag_ref(tag)] = tag_id def list_tags(*args, **kwargs): import warnings warnings.warn( "list_tags has been deprecated in favour of tag_list.", DeprecationWarning, ) return tag_list(*args, **kwargs) def tag_list(repo, outstream=sys.stdout): """List all tags. Args: repo: Path to repository outstream: Stream to write tags to """ with open_repo_closing(repo) as r: tags = sorted(r.refs.as_dict(b"refs/tags")) return tags def tag_delete(repo, name): """Remove a tag. Args: repo: Path to repository name: Name of tag to remove """ with open_repo_closing(repo) as r: if isinstance(name, bytes): names = [name] elif isinstance(name, list): names = name else: raise Error("Unexpected tag name type %r" % name) for name in names: del r.refs[_make_tag_ref(name)] def reset(repo, mode, treeish="HEAD"): """Reset current HEAD to the specified state. Args: repo: Path to repository mode: Mode ("hard", "soft", "mixed") treeish: Treeish to reset to """ if mode != "hard": raise Error("hard is the only mode currently supported") with open_repo_closing(repo) as r: tree = parse_tree(r, treeish) r.reset_index(tree.id) def get_remote_repo( repo: Repo, remote_location: Optional[Union[str, bytes]] = None ) -> Tuple[Optional[str], str]: config = repo.get_config() if remote_location is None: remote_location = get_branch_remote(repo) if isinstance(remote_location, str): encoded_location = remote_location.encode() else: encoded_location = remote_location section = (b"remote", encoded_location) remote_name = None # type: Optional[str] if config.has_section(section): remote_name = encoded_location.decode() url = config.get(section, "url") encoded_location = url else: remote_name = None return (remote_name, encoded_location.decode()) def push( repo, remote_location=None, refspecs=None, outstream=default_bytes_out_stream, errstream=default_bytes_err_stream, force=False, **kwargs ): """Remote push with dulwich via dulwich.client Args: repo: Path to repository remote_location: Location of the remote refspecs: Refs to push to remote outstream: A stream file to write output errstream: A stream file to write errors force: Force overwriting refs """ # Open the repo with open_repo_closing(repo) as r: if refspecs is None: refspecs = [active_branch(r)] (remote_name, remote_location) = get_remote_repo(r, remote_location) # Get the client and path client, path = get_transport_and_path( remote_location, config=r.get_config_stack(), **kwargs ) selected_refs = [] remote_changed_refs = {} def update_refs(refs): selected_refs.extend(parse_reftuples(r.refs, refs, refspecs, force=force)) new_refs = {} # TODO: Handle selected_refs == {None: None} for (lh, rh, force_ref) in selected_refs: if lh is None: new_refs[rh] = ZERO_SHA remote_changed_refs[rh] = None else: try: localsha = r.refs[lh] except KeyError: raise Error("No valid ref %s in local repository" % lh) if not force_ref and rh in refs: check_diverged(r, refs[rh], localsha) new_refs[rh] = localsha remote_changed_refs[rh] = localsha return new_refs err_encoding = getattr(errstream, "encoding", None) or DEFAULT_ENCODING remote_location = client.get_url(path) try: result = client.send_pack( path, update_refs, generate_pack_data=r.generate_pack_data, progress=errstream.write, ) except SendPackError as e: raise Error( "Push to " + remote_location + " failed -> " + e.args[0].decode(), inner=e, ) else: errstream.write( b"Push to " + remote_location.encode(err_encoding) + b" successful.\n" ) for ref, error in (result.ref_status or {}).items(): if error is not None: errstream.write( b"Push of ref %s failed: %s\n" % (ref, error.encode(err_encoding)) ) else: errstream.write(b"Ref %s updated\n" % ref) if remote_name is not None: _import_remote_refs(r.refs, remote_name, remote_changed_refs) def pull( repo, remote_location=None, refspecs=None, outstream=default_bytes_out_stream, errstream=default_bytes_err_stream, fast_forward=True, force=False, **kwargs ): """Pull from remote via dulwich.client Args: repo: Path to repository remote_location: Location of the remote refspec: refspecs to fetch outstream: A stream file to write to output errstream: A stream file to write to errors """ # Open the repo with open_repo_closing(repo) as r: (remote_name, remote_location) = get_remote_repo(r, remote_location) if refspecs is None: refspecs = [b"HEAD"] selected_refs = [] def determine_wants(remote_refs, **kwargs): selected_refs.extend( parse_reftuples(remote_refs, r.refs, refspecs, force=force) ) return [ remote_refs[lh] for (lh, rh, force_ref) in selected_refs if remote_refs[lh] not in r.object_store ] client, path = get_transport_and_path( remote_location, config=r.get_config_stack(), **kwargs ) fetch_result = client.fetch( path, r, progress=errstream.write, determine_wants=determine_wants ) for (lh, rh, force_ref) in selected_refs: try: check_diverged(r, r.refs[rh], fetch_result.refs[lh]) except DivergedBranches: if fast_forward: raise else: raise NotImplementedError("merge is not yet supported") r.refs[rh] = fetch_result.refs[lh] if selected_refs: r[b"HEAD"] = fetch_result.refs[selected_refs[0][1]] # Perform 'git checkout .' - syncs staged changes tree = r[b"HEAD"].tree r.reset_index(tree=tree) if remote_name is not None: _import_remote_refs(r.refs, remote_name, fetch_result.refs) def status(repo=".", ignored=False): """Returns staged, unstaged, and untracked changes relative to the HEAD. Args: repo: Path to repository or repository object ignored: Whether to include ignored files in `untracked` Returns: GitStatus tuple, staged - dict with lists of staged paths (diff index/HEAD) unstaged - list of unstaged paths (diff index/working-tree) untracked - list of untracked, un-ignored & non-.git paths """ with open_repo_closing(repo) as r: # 1. Get status of staged tracked_changes = get_tree_changes(r) # 2. Get status of unstaged index = r.open_index() normalizer = r.get_blob_normalizer() filter_callback = normalizer.checkin_normalize unstaged_changes = list(get_unstaged_changes(index, r.path, filter_callback)) untracked_paths = get_untracked_paths( r.path, r.path, index, exclude_ignored=not ignored ) untracked_changes = list(untracked_paths) return GitStatus(tracked_changes, unstaged_changes, untracked_changes) def _walk_working_dir_paths(frompath, basepath, prune_dirnames=None): """Get path, is_dir for files in working dir from frompath Args: frompath: Path to begin walk basepath: Path to compare to prune_dirnames: Optional callback to prune dirnames during os.walk dirnames will be set to result of prune_dirnames(dirpath, dirnames) """ for dirpath, dirnames, filenames in os.walk(frompath): # Skip .git and below. if ".git" in dirnames: dirnames.remove(".git") if dirpath != basepath: continue if ".git" in filenames: filenames.remove(".git") if dirpath != basepath: continue if dirpath != frompath: yield dirpath, True for filename in filenames: filepath = os.path.join(dirpath, filename) yield filepath, False if prune_dirnames: dirnames[:] = prune_dirnames(dirpath, dirnames) def get_untracked_paths(frompath, basepath, index, exclude_ignored=False): """Get untracked paths. Args: frompath: Path to walk basepath: Path to compare to index: Index to check against exclude_ignored: Whether to exclude ignored paths Note: ignored directories will never be walked for performance reasons. If exclude_ignored is False, only the path to an ignored directory will be yielded, no files inside the directory will be returned """ with open_repo_closing(basepath) as r: ignore_manager = IgnoreFilterManager.from_repo(r) ignored_dirs = [] def prune_dirnames(dirpath, dirnames): for i in range(len(dirnames) - 1, -1, -1): path = os.path.join(dirpath, dirnames[i]) ip = os.path.join(os.path.relpath(path, basepath), "") if ignore_manager.is_ignored(ip): if not exclude_ignored: ignored_dirs.append( os.path.join(os.path.relpath(path, frompath), "") ) del dirnames[i] return dirnames for ap, is_dir in _walk_working_dir_paths( frompath, basepath, prune_dirnames=prune_dirnames ): if not is_dir: ip = path_to_tree_path(basepath, ap) if ip not in index: if ( not exclude_ignored or not ignore_manager.is_ignored( os.path.relpath(ap, basepath) ) ): yield os.path.relpath(ap, frompath) yield from ignored_dirs def get_tree_changes(repo): """Return add/delete/modify changes to tree by comparing index to HEAD. Args: repo: repo path or object Returns: dict with lists for each type of change """ with open_repo_closing(repo) as r: index = r.open_index() # Compares the Index to the HEAD & determines changes # Iterate through the changes and report add/delete/modify # TODO: call out to dulwich.diff_tree somehow. tracked_changes = { "add": [], "delete": [], "modify": [], } try: tree_id = r[b"HEAD"].tree except KeyError: tree_id = None for change in index.changes_from_tree(r.object_store, tree_id): if not change[0][0]: tracked_changes["add"].append(change[0][1]) elif not change[0][1]: tracked_changes["delete"].append(change[0][0]) elif change[0][0] == change[0][1]: tracked_changes["modify"].append(change[0][0]) else: raise NotImplementedError("git mv ops not yet supported") return tracked_changes def daemon(path=".", address=None, port=None): """Run a daemon serving Git requests over TCP/IP. Args: path: Path to the directory to serve. address: Optional address to listen on (defaults to ::) port: Optional port to listen on (defaults to TCP_GIT_PORT) """ # TODO(jelmer): Support git-daemon-export-ok and --export-all. backend = FileSystemBackend(path) server = TCPGitServer(backend, address, port) server.serve_forever() def web_daemon(path=".", address=None, port=None): """Run a daemon serving Git requests over HTTP. Args: path: Path to the directory to serve address: Optional address to listen on (defaults to ::) port: Optional port to listen on (defaults to 80) """ from dulwich.web import ( make_wsgi_chain, make_server, WSGIRequestHandlerLogger, WSGIServerLogger, ) backend = FileSystemBackend(path) app = make_wsgi_chain(backend) server = make_server( address, port, app, handler_class=WSGIRequestHandlerLogger, server_class=WSGIServerLogger, ) server.serve_forever() def upload_pack(path=".", inf=None, outf=None): """Upload a pack file after negotiating its contents using smart protocol. Args: path: Path to the repository inf: Input stream to communicate with client outf: Output stream to communicate with client """ if outf is None: outf = getattr(sys.stdout, "buffer", sys.stdout) if inf is None: inf = getattr(sys.stdin, "buffer", sys.stdin) path = os.path.expanduser(path) backend = FileSystemBackend(path) def send_fn(data): outf.write(data) outf.flush() proto = Protocol(inf.read, send_fn) handler = UploadPackHandler(backend, [path], proto) # FIXME: Catch exceptions and write a single-line summary to outf. handler.handle() return 0 def receive_pack(path=".", inf=None, outf=None): """Receive a pack file after negotiating its contents using smart protocol. Args: path: Path to the repository inf: Input stream to communicate with client outf: Output stream to communicate with client """ if outf is None: outf = getattr(sys.stdout, "buffer", sys.stdout) if inf is None: inf = getattr(sys.stdin, "buffer", sys.stdin) path = os.path.expanduser(path) backend = FileSystemBackend(path) def send_fn(data): outf.write(data) outf.flush() proto = Protocol(inf.read, send_fn) handler = ReceivePackHandler(backend, [path], proto) # FIXME: Catch exceptions and write a single-line summary to outf. handler.handle() return 0 def _make_branch_ref(name): if getattr(name, "encode", None): name = name.encode(DEFAULT_ENCODING) return LOCAL_BRANCH_PREFIX + name def _make_tag_ref(name): if getattr(name, "encode", None): name = name.encode(DEFAULT_ENCODING) return b"refs/tags/" + name def branch_delete(repo, name): """Delete a branch. Args: repo: Path to the repository name: Name of the branch """ with open_repo_closing(repo) as r: if isinstance(name, list): names = name else: names = [name] for name in names: del r.refs[_make_branch_ref(name)] def branch_create(repo, name, objectish=None, force=False): """Create a branch. Args: repo: Path to the repository name: Name of the new branch objectish: Target object to point new branch at (defaults to HEAD) force: Force creation of branch, even if it already exists """ with open_repo_closing(repo) as r: if objectish is None: objectish = "HEAD" object = parse_object(r, objectish) refname = _make_branch_ref(name) ref_message = b"branch: Created from " + objectish.encode("utf-8") if force: r.refs.set_if_equals(refname, None, object.id, message=ref_message) else: if not r.refs.add_if_new(refname, object.id, message=ref_message): raise Error("Branch with name %s already exists." % name) def branch_list(repo): """List all branches. Args: repo: Path to the repository """ with open_repo_closing(repo) as r: return r.refs.keys(base=LOCAL_BRANCH_PREFIX) def active_branch(repo): """Return the active branch in the repository, if any. Args: repo: Repository to open Returns: branch name Raises: KeyError: if the repository does not have a working tree IndexError: if HEAD is floating """ with open_repo_closing(repo) as r: active_ref = r.refs.follow(b"HEAD")[0][1] if not active_ref.startswith(LOCAL_BRANCH_PREFIX): raise ValueError(active_ref) return active_ref[len(LOCAL_BRANCH_PREFIX) :] def get_branch_remote(repo): """Return the active branch's remote name, if any. Args: repo: Repository to open Returns: remote name Raises: KeyError: if the repository does not have a working tree """ with open_repo_closing(repo) as r: branch_name = active_branch(r.path) config = r.get_config() try: remote_name = config.get((b"branch", branch_name), b"remote") except KeyError: remote_name = b"origin" return remote_name def _import_remote_refs( refs_container: RefsContainer, remote_name: str, refs: Dict[str, str], message: Optional[bytes] = None, prune: bool = False, prune_tags: bool = False, ): stripped_refs = strip_peeled_refs(refs) branches = { n[len(LOCAL_BRANCH_PREFIX) :]: v for (n, v) in stripped_refs.items() if n.startswith(LOCAL_BRANCH_PREFIX) } refs_container.import_refs( b"refs/remotes/" + remote_name.encode(), branches, message=message, prune=prune, ) tags = { n[len(b"refs/tags/") :]: v for (n, v) in stripped_refs.items() if n.startswith(b"refs/tags/") and not n.endswith(ANNOTATED_TAG_SUFFIX) } refs_container.import_refs(b"refs/tags", tags, message=message, prune=prune_tags) def fetch( repo, remote_location=None, outstream=sys.stdout, errstream=default_bytes_err_stream, message=None, depth=None, prune=False, prune_tags=False, force=False, **kwargs ): """Fetch objects from a remote server. Args: repo: Path to the repository remote_location: String identifying a remote server outstream: Output stream (defaults to stdout) errstream: Error stream (defaults to stderr) message: Reflog message (defaults to b"fetch: from ") depth: Depth to fetch at prune: Prune remote removed refs prune_tags: Prune reomte removed tags Returns: Dictionary with refs on the remote """ with open_repo_closing(repo) as r: (remote_name, remote_location) = get_remote_repo(r, remote_location) if message is None: message = b"fetch: from " + remote_location.encode("utf-8") client, path = get_transport_and_path( remote_location, config=r.get_config_stack(), **kwargs ) fetch_result = client.fetch(path, r, progress=errstream.write, depth=depth) if remote_name is not None: _import_remote_refs( r.refs, remote_name, fetch_result.refs, message, prune=prune, prune_tags=prune_tags, ) return fetch_result def ls_remote(remote, config=None, **kwargs): """List the refs in a remote. Args: remote: Remote repository location config: Configuration to use Returns: Dictionary with remote refs """ if config is None: config = StackedConfig.default() client, host_path = get_transport_and_path(remote, config=config, **kwargs) return client.get_refs(host_path) def repack(repo): """Repack loose files in a repository. Currently this only packs loose objects. Args: repo: Path to the repository """ with open_repo_closing(repo) as r: r.object_store.pack_loose_objects() def pack_objects(repo, object_ids, packf, idxf, delta_window_size=None): """Pack objects into a file. Args: repo: Path to the repository object_ids: List of object ids to write packf: File-like object to write to idxf: File-like object to write to (can be None) """ with open_repo_closing(repo) as r: entries, data_sum = write_pack_objects( packf, r.object_store.iter_shas((oid, None) for oid in object_ids), delta_window_size=delta_window_size, ) if idxf is not None: entries = sorted([(k, v[0], v[1]) for (k, v) in entries.items()]) write_pack_index(idxf, entries, data_sum) def ls_tree( repo, treeish=b"HEAD", outstream=sys.stdout, recursive=False, name_only=False, ): """List contents of a tree. Args: repo: Path to the repository tree_ish: Tree id to list outstream: Output stream (defaults to stdout) recursive: Whether to recursively list files name_only: Only print item name """ def list_tree(store, treeid, base): for (name, mode, sha) in store[treeid].iteritems(): if base: name = posixpath.join(base, name) if name_only: outstream.write(name + b"\n") else: outstream.write(pretty_format_tree_entry(name, mode, sha)) if stat.S_ISDIR(mode) and recursive: list_tree(store, sha, name) with open_repo_closing(repo) as r: tree = parse_tree(r, treeish) list_tree(r.object_store, tree.id, "") def remote_add(repo, name, url): """Add a remote. Args: repo: Path to the repository name: Remote name url: Remote URL """ if not isinstance(name, bytes): name = name.encode(DEFAULT_ENCODING) if not isinstance(url, bytes): url = url.encode(DEFAULT_ENCODING) with open_repo_closing(repo) as r: c = r.get_config() section = (b"remote", name) if c.has_section(section): raise RemoteExists(section) c.set(section, b"url", url) c.write_to_path() def check_ignore(repo, paths, no_index=False): """Debug gitignore files. Args: repo: Path to the repository paths: List of paths to check for no_index: Don't check index Returns: List of ignored files """ with open_repo_closing(repo) as r: index = r.open_index() ignore_manager = IgnoreFilterManager.from_repo(r) for path in paths: if not no_index and path_to_tree_path(r.path, path) in index: continue if os.path.isabs(path): path = os.path.relpath(path, r.path) if ignore_manager.is_ignored(path): yield path def update_head(repo, target, detached=False, new_branch=None): """Update HEAD to point at a new branch/commit. Note that this does not actually update the working tree. Args: repo: Path to the repository detach: Create a detached head target: Branch or committish to switch to new_branch: New branch to create """ with open_repo_closing(repo) as r: if new_branch is not None: to_set = _make_branch_ref(new_branch) else: to_set = b"HEAD" if detached: # TODO(jelmer): Provide some way so that the actual ref gets # updated rather than what it points to, so the delete isn't # necessary. del r.refs[to_set] r.refs[to_set] = parse_commit(r, target).id else: r.refs.set_symbolic_ref(to_set, parse_ref(r, target)) if new_branch is not None: r.refs.set_symbolic_ref(b"HEAD", to_set) def check_mailmap(repo, contact): """Check canonical name and email of contact. Args: repo: Path to the repository contact: Contact name and/or email Returns: Canonical contact data """ with open_repo_closing(repo) as r: from dulwich.mailmap import Mailmap try: mailmap = Mailmap.from_path(os.path.join(r.path, ".mailmap")) except FileNotFoundError: mailmap = Mailmap() return mailmap.lookup(contact) def fsck(repo): """Check a repository. Args: repo: A path to the repository Returns: Iterator over errors/warnings """ with open_repo_closing(repo) as r: # TODO(jelmer): check pack files # TODO(jelmer): check graph # TODO(jelmer): check refs for sha in r.object_store: o = r.object_store[sha] try: o.check() except Exception as e: yield (sha, e) def stash_list(repo): """List all stashes in a repository.""" with open_repo_closing(repo) as r: from dulwich.stash import Stash stash = Stash.from_repo(r) return enumerate(list(stash.stashes())) def stash_push(repo): """Push a new stash onto the stack.""" with open_repo_closing(repo) as r: from dulwich.stash import Stash stash = Stash.from_repo(r) stash.push() def stash_pop(repo, index): """Pop a stash from the stack.""" with open_repo_closing(repo) as r: from dulwich.stash import Stash stash = Stash.from_repo(r) stash.pop(index) def stash_drop(repo, index): """Drop a stash from the stack.""" with open_repo_closing(repo) as r: from dulwich.stash import Stash stash = Stash.from_repo(r) stash.drop(index) def ls_files(repo): """List all files in an index.""" with open_repo_closing(repo) as r: return sorted(r.open_index()) def describe(repo): """Describe the repository version. Args: projdir: git repository root Returns: a string description of the current git revision Examples: "gabcdefh", "v0.1" or "v0.1-5-gabcdefh". """ # Get the repository with open_repo_closing(repo) as r: # Get a list of all tags refs = r.get_refs() tags = {} for key, value in refs.items(): key = key.decode() obj = r.get_object(value) if u"tags" not in key: continue _, tag = key.rsplit(u"/", 1) try: commit = obj.object except AttributeError: continue else: commit = r.get_object(commit[1]) tags[tag] = [ datetime.datetime(*time.gmtime(commit.commit_time)[:6]), commit.id.decode("ascii"), ] sorted_tags = sorted(tags.items(), key=lambda tag: tag[1][0], reverse=True) # If there are no tags, return the current commit if len(sorted_tags) == 0: return "g{}".format(r[r.head()].id.decode("ascii")[:7]) # We're now 0 commits from the top commit_count = 0 # Get the latest commit latest_commit = r[r.head()] # Walk through all commits walker = r.get_walker() for entry in walker: # Check if tag commit_id = entry.commit.id.decode("ascii") for tag in sorted_tags: tag_name = tag[0] tag_commit = tag[1][1] if commit_id == tag_commit: if commit_count == 0: return tag_name else: return "{}-{}-g{}".format( tag_name, commit_count, latest_commit.id.decode("ascii")[:7], ) commit_count += 1 # Return plain commit if no parent tag can be found return "g{}".format(latest_commit.id.decode("ascii")[:7]) def get_object_by_path(repo, path, committish=None): """Get an object by path. Args: repo: A path to the repository path: Path to look up committish: Commit to look up path in Returns: A `ShaFile` object """ if committish is None: committish = "HEAD" # Get the repository with open_repo_closing(repo) as r: commit = parse_commit(r, committish) base_tree = commit.tree if not isinstance(path, bytes): path = commit_encode(commit, path) (mode, sha) = tree_lookup_path(r.object_store.__getitem__, base_tree, path) return r[sha] def write_tree(repo): """Write a tree object from the index. Args: repo: Repository for which to write tree Returns: tree id for the tree that was written """ with open_repo_closing(repo) as r: return r.open_index().commit(r.object_store)