mirror of
https://github.com/git/git.git
synced 2024-11-18 22:04:14 +01:00
b020dcd54c
Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
145 lines
5.9 KiB
Plaintext
145 lines
5.9 KiB
Plaintext
<repository>::
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The "remote" repository that is the source of a fetch
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or pull operation, or the destination of a push operation.
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One of the following notations can be used
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to name the remote repository:
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+
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===============================================================
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- rsync://host.xz/path/to/repo.git/
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- http://host.xz/path/to/repo.git/
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- https://host.xz/path/to/repo.git/
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- git://host.xz/path/to/repo.git/
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- git://host.xz/~user/path/to/repo.git/
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- ssh://host.xz/path/to/repo.git/
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- ssh://host.xz/~user/path/to/repo.git/
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- ssh://host.xz/~/path/to/repo.git
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===============================================================
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+
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SSH Is the default transport protocol and also supports an
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scp-like syntax. Both syntaxes support username expansion,
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as does the native git protocol. The following three are
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identical to the last three above, respectively:
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+
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===============================================================
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- host.xz:/path/to/repo.git/
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- host.xz:~user/path/to/repo.git/
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- host.xz:path/to/repo.git
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===============================================================
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+
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To sync with a local directory, use:
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+
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===============================================================
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- /path/to/repo.git/
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===============================================================
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+
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In addition to the above, as a short-hand, the name of a
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file in `$GIT_DIR/remotes` directory can be given; the
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named file should be in the following format:
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+
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URL: one of the above URL format
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Push: <refspec>
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Pull: <refspec>
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+
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When such a short-hand is specified in place of
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<repository> without <refspec> parameters on the command
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line, <refspec> specified on `Push:` lines or `Pull:`
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lines are used for `git-push` and `git-fetch`/`git-pull`,
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respectively. Multiple `Push:` and and `Pull:` lines may
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be specified for additional branch mappings.
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+
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The name of a file in `$GIT_DIR/branches` directory can be
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specified as an older notation short-hand; the named
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file should contain a single line, a URL in one of the
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above formats, optionally followed by a hash `#` and the
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name of remote head (URL fragment notation).
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`$GIT_DIR/branches/<remote>` file that stores a <url>
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without the fragment is equivalent to have this in the
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corresponding file in the `$GIT_DIR/remotes/` directory.
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+
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URL: <url>
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Pull: refs/heads/master:<remote>
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+
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while having `<url>#<head>` is equivalent to
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+
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URL: <url>
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Pull: refs/heads/<head>:<remote>
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<refspec>::
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The canonical format of a <refspec> parameter is
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`+?<src>:<dst>`; that is, an optional plus `+`, followed
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by the source ref, followed by a colon `:`, followed by
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the destination ref.
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+
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When used in `git-push`, the <src> side can be an
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arbitrary "SHA1 expression" that can be used as an
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argument to `git-cat-file -t`. E.g. `master~4` (push
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four parents before the current master head).
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+
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For `git-push`, the local ref that matches <src> is used
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to fast forward the remote ref that matches <dst>. If
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the optional plus `+` is used, the remote ref is updated
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even if it does not result in a fast forward update.
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+
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For `git-fetch` and `git-pull`, the remote ref that matches <src>
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is fetched, and if <dst> is not empty string, the local
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ref that matches it is fast forwarded using <src>.
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Again, if the optional plus `+` is used, the local ref
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is updated even if it does not result in a fast forward
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update.
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+
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[NOTE]
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If the remote branch from which you want to pull is
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modified in non-linear ways such as being rewound and
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rebased frequently, then a pull will attempt a merge with
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an older version of itself, likely conflict, and fail.
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It is under these conditions that you would want to use
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the `+` sign to indicate non-fast-forward updates will
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be needed. There is currently no easy way to determine
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or declare that a branch will be made available in a
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repository with this behavior; the pulling user simply
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must know this is the expected usage pattern for a branch.
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+
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[NOTE]
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You never do your own development on branches that appear
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on the right hand side of a <refspec> colon on `Pull:` lines;
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they are to be updated by `git-fetch`. If you intend to do
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development derived from a remote branch `B`, have a `Pull:`
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line to track it (i.e. `Pull: B:remote-B`), and have a separate
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branch `my-B` to do your development on top of it. The latter
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is created by `git branch my-B remote-B` (or its equivalent `git
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checkout -b my-B remote-B`). Run `git fetch` to keep track of
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the progress of the remote side, and when you see something new
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on the remote branch, merge it into your development branch with
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`git pull . remote-B`, while you are on `my-B` branch.
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The common `Pull: master:origin` mapping of a remote `master`
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branch to a local `origin` branch, which is then merged to a
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local development branch, again typically named `master`, is made
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when you run `git clone` for you to follow this pattern.
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+
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[NOTE]
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There is a difference between listing multiple <refspec>
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directly on `git-pull` command line and having multiple
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`Pull:` <refspec> lines for a <repository> and running
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`git-pull` command without any explicit <refspec> parameters.
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<refspec> listed explicitly on the command line are always
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merged into the current branch after fetching. In other words,
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if you list more than one remote refs, you would be making
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an Octopus. While `git-pull` run without any explicit <refspec>
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parameter takes default <refspec>s from `Pull:` lines, it
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merges only the first <refspec> found into the current branch,
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after fetching all the remote refs. This is because making an
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Octopus from remote refs is rarely done, while keeping track
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of multiple remote heads in one-go by fetching more than one
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is often useful.
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+
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Some short-cut notations are also supported.
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+
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* For backward compatibility, `tag` is almost ignored;
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it just makes the following parameter <tag> to mean a
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refspec `refs/tags/<tag>:refs/tags/<tag>`.
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* A parameter <ref> without a colon is equivalent to
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<ref>: when pulling/fetching, and <ref>`:`<ref> when
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pushing. That is, do not store it locally if
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fetching, and update the same name if pushing.
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