git/Documentation/gitmodules.txt
Jens Lehmann 1d2f393ac9 status/commit: show staged submodules regardless of ignore config
Currently setting submodule.<name>.ignore and/or diff.ignoreSubmodules to
"all" suppresses all output of submodule changes for the diff family,
status and commit. For status and commit this is really confusing, as it
even when the user chooses to record a new commit for an ignored submodule
by adding it manually this change won't show up under the to-be-committed
changes. To add insult to injury, a later "git commit" will error out with
"nothing to commit" when only ignored submodules are staged.

Fix that by making wt_status always print staged submodule changes, no
matter what ignore settings are configured. The only exception is when the
user explicitly uses the "--ignore-submodules=all" command line option, in
that case the submodule output is still suppressed. This also makes "git
commit" work again when only modifications of ignored submodules are
staged, as that command uses the "commitable" member of the wt_status
struct to determine if staged changes are present. But this only happens
when the commit command uses the wt_status* functions to produce status
output for human consumption (when forking an editor or with --dry-run),
in all other cases (e.g. when run in a script with '-m') another code path
is taken which uses index_differs_from() to determine if any changes are
staged which still ignores submodules according to their configuration.
This will be fixed in a follow-up commit.

Change t7508 to reflect this new behavior and add three new tests to show
that a single staged submodule configured to be ignored will be committed
when the status output is generated and won't be if not. Also update the
documentation of the ignore config options accordingly.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-07 10:32:20 -07:00

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gitmodules(5)
=============
NAME
----
gitmodules - defining submodule properties
SYNOPSIS
--------
$GIT_WORK_DIR/.gitmodules
DESCRIPTION
-----------
The `.gitmodules` file, located in the top-level directory of a Git
working tree, is a text file with a syntax matching the requirements
of linkgit:git-config[1].
The file contains one subsection per submodule, and the subsection value
is the name of the submodule. The name is set to the path where the
submodule has been added unless it was customized with the '--name'
option of 'git submodule add'. Each submodule section also contains the
following required keys:
submodule.<name>.path::
Defines the path, relative to the top-level directory of the Git
working tree, where the submodule is expected to be checked out.
The path name must not end with a `/`. All submodule paths must
be unique within the .gitmodules file.
submodule.<name>.url::
Defines a URL from which the submodule repository can be cloned.
This may be either an absolute URL ready to be passed to
linkgit:git-clone[1] or (if it begins with ./ or ../) a location
relative to the superproject's origin repository.
In addition, there are a number of optional keys:
submodule.<name>.update::
Defines what to do when the submodule is updated by the superproject.
If 'checkout' (the default), the new commit specified in the
superproject will be checked out in the submodule on a detached HEAD.
If 'rebase', the current branch of the submodule will be rebased onto
the commit specified in the superproject. If 'merge', the commit
specified in the superproject will be merged into the current branch
in the submodule.
If 'none', the submodule with name `$name` will not be updated
by default.
This config option is overridden if 'git submodule update' is given
the '--merge', '--rebase' or '--checkout' options.
submodule.<name>.branch::
A remote branch name for tracking updates in the upstream submodule.
If the option is not specified, it defaults to 'master'. See the
`--remote` documentation in linkgit:git-submodule[1] for details.
submodule.<name>.fetchRecurseSubmodules::
This option can be used to control recursive fetching of this
submodule. If this option is also present in the submodules entry in
.git/config of the superproject, the setting there will override the
one found in .gitmodules.
Both settings can be overridden on the command line by using the
"--[no-]recurse-submodules" option to "git fetch" and "git pull".
submodule.<name>.ignore::
Defines under what circumstances "git status" and the diff family show
a submodule as modified. When set to "all", it will never be considered
modified (but will nonetheless show up in the output of status and
commit when it has been staged), "dirty" will ignore all changes
to the submodules work tree and
takes only differences between the HEAD of the submodule and the commit
recorded in the superproject into account. "untracked" will additionally
let submodules with modified tracked files in their work tree show up.
Using "none" (the default when this option is not set) also shows
submodules that have untracked files in their work tree as changed.
If this option is also present in the submodules entry in .git/config of
the superproject, the setting there will override the one found in
.gitmodules.
Both settings can be overridden on the command line by using the
"--ignore-submodule" option. The 'git submodule' commands are not
affected by this setting.
EXAMPLES
--------
Consider the following .gitmodules file:
[submodule "libfoo"]
path = include/foo
url = git://foo.com/git/lib.git
[submodule "libbar"]
path = include/bar
url = git://bar.com/git/lib.git
This defines two submodules, `libfoo` and `libbar`. These are expected to
be checked out in the paths 'include/foo' and 'include/bar', and for both
submodules a URL is specified which can be used for cloning the submodules.
SEE ALSO
--------
linkgit:git-submodule[1] linkgit:git-config[1]
GIT
---
Part of the linkgit:git[1] suite