merge(third_party/git): Merge squashed git subtree at v2.23.0 r/373

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+git-remote(1)
+=============
+
+NAME
+----
+git-remote - Manage set of tracked repositories
+
+
+SYNOPSIS
+--------
+[verse]
+'git remote' [-v | --verbose]
+'git remote add' [-t <branch>] [-m <master>] [-f] [--[no-]tags] [--mirror=<fetch|push>] <name> <url>
+'git remote rename' <old> <new>
+'git remote remove' <name>
+'git remote set-head' <name> (-a | --auto | -d | --delete | <branch>)
+'git remote set-branches' [--add] <name> <branch>...
+'git remote get-url' [--push] [--all] <name>
+'git remote set-url' [--push] <name> <newurl> [<oldurl>]
+'git remote set-url --add' [--push] <name> <newurl>
+'git remote set-url --delete' [--push] <name> <url>
+'git remote' [-v | --verbose] 'show' [-n] <name>...
+'git remote prune' [-n | --dry-run] <name>...
+'git remote' [-v | --verbose] 'update' [-p | --prune] [(<group> | <remote>)...]
+
+DESCRIPTION
+-----------
+
+Manage the set of repositories ("remotes") whose branches you track.
+
+
+OPTIONS
+-------
+
+-v::
+--verbose::
+	Be a little more verbose and show remote url after name.
+	NOTE: This must be placed between `remote` and `subcommand`.
+
+
+COMMANDS
+--------
+
+With no arguments, shows a list of existing remotes.  Several
+subcommands are available to perform operations on the remotes.
+
+'add'::
+
+Adds a remote named <name> for the repository at
+<url>.  The command `git fetch <name>` can then be used to create and
+update remote-tracking branches <name>/<branch>.
++
+With `-f` option, `git fetch <name>` is run immediately after
+the remote information is set up.
++
+With `--tags` option, `git fetch <name>` imports every tag from the
+remote repository.
++
+With `--no-tags` option, `git fetch <name>` does not import tags from
+the remote repository.
++
+By default, only tags on fetched branches are imported
+(see linkgit:git-fetch[1]).
++
+With `-t <branch>` option, instead of the default glob
+refspec for the remote to track all branches under
+the `refs/remotes/<name>/` namespace, a refspec to track only `<branch>`
+is created.  You can give more than one `-t <branch>` to track
+multiple branches without grabbing all branches.
++
+With `-m <master>` option, a symbolic-ref `refs/remotes/<name>/HEAD` is set
+up to point at remote's `<master>` branch. See also the set-head command.
++
+When a fetch mirror is created with `--mirror=fetch`, the refs will not
+be stored in the 'refs/remotes/' namespace, but rather everything in
+'refs/' on the remote will be directly mirrored into 'refs/' in the
+local repository. This option only makes sense in bare repositories,
+because a fetch would overwrite any local commits.
++
+When a push mirror is created with `--mirror=push`, then `git push`
+will always behave as if `--mirror` was passed.
+
+'rename'::
+
+Rename the remote named <old> to <new>. All remote-tracking branches and
+configuration settings for the remote are updated.
++
+In case <old> and <new> are the same, and <old> is a file under
+`$GIT_DIR/remotes` or `$GIT_DIR/branches`, the remote is converted to
+the configuration file format.
+
+'remove'::
+'rm'::
+
+Remove the remote named <name>. All remote-tracking branches and
+configuration settings for the remote are removed.
+
+'set-head'::
+
+Sets or deletes the default branch (i.e. the target of the
+symbolic-ref `refs/remotes/<name>/HEAD`) for
+the named remote. Having a default branch for a remote is not required,
+but allows the name of the remote to be specified in lieu of a specific
+branch. For example, if the default branch for `origin` is set to
+`master`, then `origin` may be specified wherever you would normally
+specify `origin/master`.
++
+With `-d` or `--delete`, the symbolic ref `refs/remotes/<name>/HEAD` is deleted.
++
+With `-a` or `--auto`, the remote is queried to determine its `HEAD`, then the
+symbolic-ref `refs/remotes/<name>/HEAD` is set to the same branch. e.g., if the remote
+`HEAD` is pointed at `next`, "`git remote set-head origin -a`" will set
+the symbolic-ref `refs/remotes/origin/HEAD` to `refs/remotes/origin/next`. This will
+only work if `refs/remotes/origin/next` already exists; if not it must be
+fetched first.
++
+Use `<branch>` to set the symbolic-ref `refs/remotes/<name>/HEAD` explicitly. e.g., "git
+remote set-head origin master" will set the symbolic-ref `refs/remotes/origin/HEAD` to
+`refs/remotes/origin/master`. This will only work if
+`refs/remotes/origin/master` already exists; if not it must be fetched first.
++
+
+'set-branches'::
+
+Changes the list of branches tracked by the named remote.
+This can be used to track a subset of the available remote branches
+after the initial setup for a remote.
++
+The named branches will be interpreted as if specified with the
+`-t` option on the 'git remote add' command line.
++
+With `--add`, instead of replacing the list of currently tracked
+branches, adds to that list.
+
+'get-url'::
+
+Retrieves the URLs for a remote. Configurations for `insteadOf` and
+`pushInsteadOf` are expanded here. By default, only the first URL is listed.
++
+With `--push`, push URLs are queried rather than fetch URLs.
++
+With `--all`, all URLs for the remote will be listed.
+
+'set-url'::
+
+Changes URLs for the remote. Sets first URL for remote <name> that matches
+regex <oldurl> (first URL if no <oldurl> is given) to <newurl>. If
+<oldurl> doesn't match any URL, an error occurs and nothing is changed.
++
+With `--push`, push URLs are manipulated instead of fetch URLs.
++
+With `--add`, instead of changing existing URLs, new URL is added.
++
+With `--delete`, instead of changing existing URLs, all URLs matching
+regex <url> are deleted for remote <name>.  Trying to delete all
+non-push URLs is an error.
++
+Note that the push URL and the fetch URL, even though they can
+be set differently, must still refer to the same place.  What you
+pushed to the push URL should be what you would see if you
+immediately fetched from the fetch URL.  If you are trying to
+fetch from one place (e.g. your upstream) and push to another (e.g.
+your publishing repository), use two separate remotes.
+
+
+'show'::
+
+Gives some information about the remote <name>.
++
+With `-n` option, the remote heads are not queried first with
+`git ls-remote <name>`; cached information is used instead.
+
+'prune'::
+
+Deletes stale references associated with <name>. By default, stale
+remote-tracking branches under <name> are deleted, but depending on
+global configuration and the configuration of the remote we might even
+prune local tags that haven't been pushed there. Equivalent to `git
+fetch --prune <name>`, except that no new references will be fetched.
++
+See the PRUNING section of linkgit:git-fetch[1] for what it'll prune
+depending on various configuration.
++
+With `--dry-run` option, report what branches will be pruned, but do not
+actually prune them.
+
+'update'::
+
+Fetch updates for remotes or remote groups in the repository as defined by
+remotes.<group>.  If neither group nor remote is specified on the command line,
+the configuration parameter remotes.default will be used; if
+remotes.default is not defined, all remotes which do not have the
+configuration parameter remote.<name>.skipDefaultUpdate set to true will
+be updated.  (See linkgit:git-config[1]).
++
+With `--prune` option, run pruning against all the remotes that are updated.
+
+
+DISCUSSION
+----------
+
+The remote configuration is achieved using the `remote.origin.url` and
+`remote.origin.fetch` configuration variables.  (See
+linkgit:git-config[1]).
+
+EXAMPLES
+--------
+
+* Add a new remote, fetch, and check out a branch from it
++
+------------
+$ git remote
+origin
+$ git branch -r
+  origin/HEAD -> origin/master
+  origin/master
+$ git remote add staging git://git.kernel.org/.../gregkh/staging.git
+$ git remote
+origin
+staging
+$ git fetch staging
+...
+From git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
+ * [new branch]      master     -> staging/master
+ * [new branch]      staging-linus -> staging/staging-linus
+ * [new branch]      staging-next -> staging/staging-next
+$ git branch -r
+  origin/HEAD -> origin/master
+  origin/master
+  staging/master
+  staging/staging-linus
+  staging/staging-next
+$ git switch -c staging staging/master
+...
+------------
+
+* Imitate 'git clone' but track only selected branches
++
+------------
+$ mkdir project.git
+$ cd project.git
+$ git init
+$ git remote add -f -t master -m master origin git://example.com/git.git/
+$ git merge origin
+------------
+
+
+SEE ALSO
+--------
+linkgit:git-fetch[1]
+linkgit:git-branch[1]
+linkgit:git-config[1]
+
+GIT
+---
+Part of the linkgit:git[1] suite