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9144ba4cf5
Change the exit code for the likes of "git remote add/rename" to exit
with 2 if the remote in question doesn't exist, and 3 if it
does. Before we'd just die() and exit with the general 128 exit code.
This changes the output message from e.g.:
fatal: remote origin already exists.
To:
error: remote origin already exists.
Which I believe is a feature, since we generally use "fatal" for the
generic errors, and "error" for the more specific ones with a custom
exit code, but this part of the change may break code that already
relies on stderr parsing (not that we ever supported that...).
The motivation for this is a discussion around some code in GitLab's
gitaly which wanted to check this, and had to parse stderr to do so:
https://gitlab.com/gitlab-org/gitaly/-/merge_requests/2695
It's worth noting as an aside that a method of checking this that
doesn't rely on that is to check with "git config" whether the value
in question does or doesn't exist. That introduces a TOCTOU race
condition, but on the other hand this code (e.g. "git remote add")
already has a TOCTOU race.
We go through the config.lock for the actual setting of the config,
but the pseudocode logic is:
read_config();
check_config_and_arg_sanity();
save_config();
So e.g. if a sleep() is added right after the remote_is_configured()
check in add() we'll clobber remote.NAME.url, and add another (usually
duplicate) remote.NAME.fetch entry (and other values, depending on
invocation).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
267 lines
8.5 KiB
Text
267 lines
8.5 KiB
Text
git-remote(1)
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=============
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NAME
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----
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git-remote - Manage set of tracked repositories
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SYNOPSIS
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--------
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[verse]
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'git remote' [-v | --verbose]
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'git remote add' [-t <branch>] [-m <master>] [-f] [--[no-]tags] [--mirror=(fetch|push)] <name> <url>
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'git remote rename' <old> <new>
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'git remote remove' <name>
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'git remote set-head' <name> (-a | --auto | -d | --delete | <branch>)
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'git remote set-branches' [--add] <name> <branch>...
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'git remote get-url' [--push] [--all] <name>
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'git remote set-url' [--push] <name> <newurl> [<oldurl>]
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'git remote set-url --add' [--push] <name> <newurl>
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'git remote set-url --delete' [--push] <name> <url>
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'git remote' [-v | --verbose] 'show' [-n] <name>...
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'git remote prune' [-n | --dry-run] <name>...
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'git remote' [-v | --verbose] 'update' [-p | --prune] [(<group> | <remote>)...]
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DESCRIPTION
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-----------
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Manage the set of repositories ("remotes") whose branches you track.
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OPTIONS
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-------
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-v::
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--verbose::
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Be a little more verbose and show remote url after name.
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NOTE: This must be placed between `remote` and subcommand.
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COMMANDS
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--------
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With no arguments, shows a list of existing remotes. Several
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subcommands are available to perform operations on the remotes.
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'add'::
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Add a remote named <name> for the repository at
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<url>. The command `git fetch <name>` can then be used to create and
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update remote-tracking branches <name>/<branch>.
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+
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With `-f` option, `git fetch <name>` is run immediately after
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the remote information is set up.
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+
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With `--tags` option, `git fetch <name>` imports every tag from the
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remote repository.
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+
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With `--no-tags` option, `git fetch <name>` does not import tags from
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the remote repository.
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+
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By default, only tags on fetched branches are imported
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(see linkgit:git-fetch[1]).
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+
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With `-t <branch>` option, instead of the default glob
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refspec for the remote to track all branches under
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the `refs/remotes/<name>/` namespace, a refspec to track only `<branch>`
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is created. You can give more than one `-t <branch>` to track
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multiple branches without grabbing all branches.
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+
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With `-m <master>` option, a symbolic-ref `refs/remotes/<name>/HEAD` is set
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up to point at remote's `<master>` branch. See also the set-head command.
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+
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When a fetch mirror is created with `--mirror=fetch`, the refs will not
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be stored in the 'refs/remotes/' namespace, but rather everything in
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'refs/' on the remote will be directly mirrored into 'refs/' in the
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local repository. This option only makes sense in bare repositories,
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because a fetch would overwrite any local commits.
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+
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When a push mirror is created with `--mirror=push`, then `git push`
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will always behave as if `--mirror` was passed.
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'rename'::
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Rename the remote named <old> to <new>. All remote-tracking branches and
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configuration settings for the remote are updated.
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+
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In case <old> and <new> are the same, and <old> is a file under
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`$GIT_DIR/remotes` or `$GIT_DIR/branches`, the remote is converted to
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the configuration file format.
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'remove'::
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'rm'::
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Remove the remote named <name>. All remote-tracking branches and
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configuration settings for the remote are removed.
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'set-head'::
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Sets or deletes the default branch (i.e. the target of the
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symbolic-ref `refs/remotes/<name>/HEAD`) for
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the named remote. Having a default branch for a remote is not required,
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but allows the name of the remote to be specified in lieu of a specific
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branch. For example, if the default branch for `origin` is set to
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`master`, then `origin` may be specified wherever you would normally
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specify `origin/master`.
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+
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With `-d` or `--delete`, the symbolic ref `refs/remotes/<name>/HEAD` is deleted.
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+
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With `-a` or `--auto`, the remote is queried to determine its `HEAD`, then the
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symbolic-ref `refs/remotes/<name>/HEAD` is set to the same branch. e.g., if the remote
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`HEAD` is pointed at `next`, `git remote set-head origin -a` will set
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the symbolic-ref `refs/remotes/origin/HEAD` to `refs/remotes/origin/next`. This will
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only work if `refs/remotes/origin/next` already exists; if not it must be
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fetched first.
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+
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Use `<branch>` to set the symbolic-ref `refs/remotes/<name>/HEAD` explicitly. e.g., `git
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remote set-head origin master` will set the symbolic-ref `refs/remotes/origin/HEAD` to
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`refs/remotes/origin/master`. This will only work if
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`refs/remotes/origin/master` already exists; if not it must be fetched first.
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+
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'set-branches'::
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Changes the list of branches tracked by the named remote.
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This can be used to track a subset of the available remote branches
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after the initial setup for a remote.
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+
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The named branches will be interpreted as if specified with the
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`-t` option on the `git remote add` command line.
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+
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With `--add`, instead of replacing the list of currently tracked
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branches, adds to that list.
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'get-url'::
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Retrieves the URLs for a remote. Configurations for `insteadOf` and
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`pushInsteadOf` are expanded here. By default, only the first URL is listed.
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+
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With `--push`, push URLs are queried rather than fetch URLs.
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+
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With `--all`, all URLs for the remote will be listed.
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'set-url'::
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Changes URLs for the remote. Sets first URL for remote <name> that matches
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regex <oldurl> (first URL if no <oldurl> is given) to <newurl>. If
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<oldurl> doesn't match any URL, an error occurs and nothing is changed.
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+
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With `--push`, push URLs are manipulated instead of fetch URLs.
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+
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With `--add`, instead of changing existing URLs, new URL is added.
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+
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With `--delete`, instead of changing existing URLs, all URLs matching
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regex <url> are deleted for remote <name>. Trying to delete all
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non-push URLs is an error.
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+
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Note that the push URL and the fetch URL, even though they can
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be set differently, must still refer to the same place. What you
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pushed to the push URL should be what you would see if you
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immediately fetched from the fetch URL. If you are trying to
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fetch from one place (e.g. your upstream) and push to another (e.g.
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your publishing repository), use two separate remotes.
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'show'::
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Gives some information about the remote <name>.
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With `-n` option, the remote heads are not queried first with
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`git ls-remote <name>`; cached information is used instead.
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'prune'::
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Deletes stale references associated with <name>. By default, stale
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remote-tracking branches under <name> are deleted, but depending on
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global configuration and the configuration of the remote we might even
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prune local tags that haven't been pushed there. Equivalent to `git
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fetch --prune <name>`, except that no new references will be fetched.
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+
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See the PRUNING section of linkgit:git-fetch[1] for what it'll prune
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depending on various configuration.
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+
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With `--dry-run` option, report what branches would be pruned, but do not
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actually prune them.
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'update'::
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Fetch updates for remotes or remote groups in the repository as defined by
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`remotes.<group>`. If neither group nor remote is specified on the command line,
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the configuration parameter remotes.default will be used; if
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remotes.default is not defined, all remotes which do not have the
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configuration parameter `remote.<name>.skipDefaultUpdate` set to true will
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be updated. (See linkgit:git-config[1]).
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+
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With `--prune` option, run pruning against all the remotes that are updated.
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DISCUSSION
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----------
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The remote configuration is achieved using the `remote.origin.url` and
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`remote.origin.fetch` configuration variables. (See
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linkgit:git-config[1]).
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EXIT STATUS
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-----------
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On success, the exit status is `0`.
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When subcommands such as 'add', 'rename', and 'remove' can't find the
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remote in question, the exit status is `2`. When the remote already
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exists, the exit status is `3`.
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On any other error, the exit status may be any other non-zero value.
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EXAMPLES
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--------
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* Add a new remote, fetch, and check out a branch from it
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+
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------------
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$ git remote
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origin
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$ git branch -r
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origin/HEAD -> origin/master
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origin/master
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$ git remote add staging git://git.kernel.org/.../gregkh/staging.git
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$ git remote
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origin
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staging
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$ git fetch staging
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...
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From git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
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* [new branch] master -> staging/master
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* [new branch] staging-linus -> staging/staging-linus
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* [new branch] staging-next -> staging/staging-next
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$ git branch -r
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origin/HEAD -> origin/master
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origin/master
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staging/master
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staging/staging-linus
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staging/staging-next
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$ git switch -c staging staging/master
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...
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------------
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* Imitate 'git clone' but track only selected branches
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------------
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$ mkdir project.git
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$ cd project.git
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$ git init
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$ git remote add -f -t master -m master origin git://example.com/git.git/
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$ git merge origin
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------------
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SEE ALSO
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--------
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linkgit:git-fetch[1]
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linkgit:git-branch[1]
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linkgit:git-config[1]
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GIT
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---
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Part of the linkgit:git[1] suite
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