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'git submodule update --merge' merges the commit referenced by the superproject into your local branch, instead of checking it out on a detached HEAD. As evidenced by the addition of "git submodule update --rebase", it is useful to provide alternatives to the default 'checkout' behaviour of "git submodule update". One such alternative is, when updating a submodule to a new commit, to merge that commit into the current local branch in that submodule. This is useful in workflows where you want to update your submodule from its upstream, but you cannot use --rebase, because you have downstream people working on top of your submodule branch, and you don't want to disrupt their work. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
74 lines
2 KiB
Plaintext
74 lines
2 KiB
Plaintext
gitmodules(5)
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=============
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NAME
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----
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gitmodules - defining submodule properties
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SYNOPSIS
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--------
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$GIT_WORK_DIR/.gitmodules
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DESCRIPTION
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-----------
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The `.gitmodules` file, located in the top-level directory of a git
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working tree, is a text file with a syntax matching the requirements
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of linkgit:git-config[1].
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The file contains one subsection per submodule, and the subsection value
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is the name of the submodule. Each submodule section also contains the
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following required keys:
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submodule.<name>.path::
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Defines the path, relative to the top-level directory of the git
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working tree, where the submodule is expected to be checked out.
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The path name must not end with a `/`. All submodule paths must
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be unique within the .gitmodules file.
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submodule.<name>.url::
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Defines an url from where the submodule repository can be cloned.
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submodule.<name>.update::
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Defines what to do when the submodule is updated by the superproject.
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If 'checkout' (the default), the new commit specified in the
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superproject will be checked out in the submodule on a detached HEAD.
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If 'rebase', the current branch of the submodule will be rebased onto
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the commit specified in the superproject. If 'merge', the commit
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specified in the superproject will be merged into the current branch
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in the submodule.
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This config option is overridden if 'git submodule update' is given
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the '--merge' or '--rebase' options.
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EXAMPLES
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--------
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Consider the following .gitmodules file:
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[submodule "libfoo"]
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path = include/foo
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url = git://foo.com/git/lib.git
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[submodule "libbar"]
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path = include/bar
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url = git://bar.com/git/lib.git
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This defines two submodules, `libfoo` and `libbar`. These are expected to
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be checked out in the paths 'include/foo' and 'include/bar', and for both
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submodules an url is specified which can be used for cloning the submodules.
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SEE ALSO
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--------
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linkgit:git-submodule[1] linkgit:git-config[1]
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DOCUMENTATION
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-------------
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Documentation by Lars Hjemli <hjemli@gmail.com>
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GIT
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---
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Part of the linkgit:git[1] suite
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