c983bf8203
git branch --prune-merged <branch>...
deletes the local branches that "--forked <branch>" would list,
restricted to those whose tip is reachable from their configured
upstream: the work has already landed on the upstream they track,
so the local copy is no longer needed.
Reachability is read from local refs; nothing is fetched. Users
who want fresh upstream refs run "git fetch" first.
Three classes of branches are spared:
* any branch checked out in any worktree;
* any branch whose upstream no longer resolves locally (its
disappearance is not, on its own, evidence of integration);
* any branch whose push destination equals its upstream
(<branch>@{push} == <branch>@{upstream}). Such a branch
cannot be distinguished from a freshly pulled trunk that
just looks "fully merged", e.g. local "main" tracking and
pushing to "origin/main" right after a pull. Only branches
that push somewhere other than their upstream (typically
topics in a fork-based workflow) are treated as candidates.
Deletion goes through the existing delete_branches() in warn-only
mode and with the HEAD-fallback disabled: a branch that is not
yet fully merged to its upstream is reported as a one-line warning
and skipped, so a single un-mergeable topic does not abort the
whole sweep. We only act on upstream-merged status.
Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git - fast, scalable, distributed revision control system
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.
Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.
Please read the file INSTALL for installation instructions.
Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.
See Documentation/gittutorial.adoc to get started, then see
Documentation/giteveryday.adoc for a useful minimum set of commands, and
Documentation/git-<commandname>.adoc for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with man gittutorial or git help tutorial, and the
documentation of each command with man git-<commandname> or git help <commandname>.
CVS users may also want to read Documentation/gitcvs-migration.adoc
(man gitcvs-migration or git help cvs-migration if git is
installed).
The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission and Documentation/CodingGuidelines).
Those wishing to help with error message, usage and informational message
string translations (localization l10) should see po/README.md
(a po file is a Portable Object file that holds the translations).
To subscribe to the list, send an email to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://marc.info/?l=git and other archival sites.
Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.
The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.
The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):
- random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
- stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
- "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
- "goddamn idiotic truckload of sh*t": when it breaks