2 The "remote" repository that is the source of a fetch
3 or pull operation. This parameter can be either a URL
4 (see the section <<URLS,GIT URLS>> below) or the name
5 of a remote (see the section <<REMOTES,REMOTES>> below).
8 The canonical format of a <refspec> parameter is
9 `+?<src>:<dst>`; that is, an optional plus `{plus}`, followed
10 by the source ref, followed by a colon `:`, followed by
13 The remote ref that matches <src>
14 is fetched, and if <dst> is not empty string, the local
15 ref that matches it is fast forwarded using <src>.
16 Again, if the optional plus `+` is used, the local ref
17 is updated even if it does not result in a fast forward
21 If the remote branch from which you want to pull is
22 modified in non-linear ways such as being rewound and
23 rebased frequently, then a pull will attempt a merge with
24 an older version of itself, likely conflict, and fail.
25 It is under these conditions that you would want to use
26 the `+` sign to indicate non-fast-forward updates will
27 be needed. There is currently no easy way to determine
28 or declare that a branch will be made available in a
29 repository with this behavior; the pulling user simply
30 must know this is the expected usage pattern for a branch.
33 You never do your own development on branches that appear
34 on the right hand side of a <refspec> colon on `Pull:` lines;
35 they are to be updated by 'git-fetch'. If you intend to do
36 development derived from a remote branch `B`, have a `Pull:`
37 line to track it (i.e. `Pull: B:remote-B`), and have a separate
38 branch `my-B` to do your development on top of it. The latter
39 is created by `git branch my-B remote-B` (or its equivalent `git
40 checkout -b my-B remote-B`). Run `git fetch` to keep track of
41 the progress of the remote side, and when you see something new
42 on the remote branch, merge it into your development branch with
43 `git pull . remote-B`, while you are on `my-B` branch.
46 There is a difference between listing multiple <refspec>
47 directly on 'git-pull' command line and having multiple
48 `Pull:` <refspec> lines for a <repository> and running
49 'git-pull' command without any explicit <refspec> parameters.
50 <refspec> listed explicitly on the command line are always
51 merged into the current branch after fetching. In other words,
52 if you list more than one remote refs, you would be making
53 an Octopus. While 'git-pull' run without any explicit <refspec>
54 parameter takes default <refspec>s from `Pull:` lines, it
55 merges only the first <refspec> found into the current branch,
56 after fetching all the remote refs. This is because making an
57 Octopus from remote refs is rarely done, while keeping track
58 of multiple remote heads in one-go by fetching more than one
61 Some short-cut notations are also supported.
63 * `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`;
64 it requests fetching everything up to the given tag.
65 * A parameter <ref> without a colon is equivalent to
66 <ref>: when pulling/fetching, so it merges <ref> into the current
67 branch without storing the remote branch anywhere locally