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Diffstat (limited to 'Documentation/git-submodule.txt')
| -rw-r--r-- | Documentation/git-submodule.txt | 87 |
1 files changed, 46 insertions, 41 deletions
diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt index 8acc72ebb..b9a56d4c6 100644 --- a/Documentation/git-submodule.txt +++ b/Documentation/git-submodule.txt @@ -63,41 +63,38 @@ add [-b <branch>] [-f|--force] [--name <name>] [--reference <repository>] [--dep to the changeset to be committed next to the current project: the current project is termed the "superproject". + -This requires at least one argument: <repository>. The optional -argument <path> is the relative location for the cloned submodule -to exist in the superproject. If <path> is not given, the -"humanish" part of the source repository is used ("repo" for -"/path/to/repo.git" and "foo" for "host.xz:foo/.git"). -The <path> is also used as the submodule's logical name in its -configuration entries unless `--name` is used to specify a logical name. -+ <repository> is the URL of the new submodule's origin repository. This may be either an absolute URL, or (if it begins with ./ -or ../), the location relative to the superproject's origin +or ../), the location relative to the superproject's default remote repository (Please note that to specify a repository 'foo.git' which is located right next to a superproject 'bar.git', you'll have to use '../foo.git' instead of './foo.git' - as one might expect when following the rules for relative URLs - because the evaluation of relative URLs in Git is identical to that of relative directories). -If the superproject doesn't have an origin configured ++ +The default remote is the remote of the remote tracking branch +of the current branch. If no such remote tracking branch exists or +the HEAD is detached, "origin" is assumed to be the default remote. +If the superproject doesn't have a default remote configured the superproject is its own authoritative upstream and the current working directory is used instead. + -<path> is the relative location for the cloned submodule to -exist in the superproject. If <path> does not exist, then the -submodule is created by cloning from the named URL. If <path> does -exist and is already a valid Git repository, then this is added -to the changeset without cloning. This second form is provided -to ease creating a new submodule from scratch, and presumes -the user will later push the submodule to the given URL. +The optional argument <path> is the relative location for the cloned +submodule to exist in the superproject. If <path> is not given, the +canonical part of the source repository is used ("repo" for +"/path/to/repo.git" and "foo" for "host.xz:foo/.git"). If <path> +exists and is already a valid Git repository, then it is staged +for commit without cloning. The <path> is also used as the submodule's +logical name in its configuration entries unless `--name` is used +to specify a logical name. + -In either case, the given URL is recorded into .gitmodules for -use by subsequent users cloning the superproject. If the URL is -given relative to the superproject's repository, the presumption -is the superproject and submodule repositories will be kept -together in the same relative location, and only the -superproject's URL needs to be provided: git-submodule will correctly -locate the submodule using the relative URL in .gitmodules. +The given URL is recorded into `.gitmodules` for use by subsequent users +cloning the superproject. If the URL is given relative to the +superproject's repository, the presumption is the superproject and +submodule repositories will be kept together in the same relative +location, and only the superproject's URL needs to be provided. +git-submodule will correctly locate the submodule using the relative +URL in `.gitmodules`. status [--cached] [--recursive] [--] [<path>...]:: Show the status of the submodules. This will print the SHA-1 of the @@ -118,18 +115,26 @@ too (and can also report changes to a submodule's work tree). init [--] [<path>...]:: Initialize the submodules recorded in the index (which were - added and committed elsewhere) by copying submodule - names and urls from .gitmodules to .git/config. - Optional <path> arguments limit which submodules will be initialized. - It will also copy the value of `submodule.$name.update` into - .git/config. - The key used in .git/config is `submodule.$name.url`. - This command does not alter existing information in .git/config. - You can then customize the submodule clone URLs in .git/config - for your local setup and proceed to `git submodule update`; - you can also just use `git submodule update --init` without - the explicit 'init' step if you do not intend to customize - any submodule locations. + added and committed elsewhere) by setting `submodule.$name.url` + in .git/config. It uses the same setting from `.gitmodules` as + a template. If the URL is relative, it will be resolved using + the default remote. If there is no default remote, the current + repository will be assumed to be upstream. ++ +Optional <path> arguments limit which submodules will be initialized. +If no path is specified and submodule.active has been configured, submodules +configured to be active will be initialized, otherwise all submodules are +initialized. ++ +When present, it will also copy the value of `submodule.$name.update`. +This command does not alter existing information in .git/config. +You can then customize the submodule clone URLs in .git/config +for your local setup and proceed to `git submodule update`; +you can also just use `git submodule update --init` without +the explicit 'init' step if you do not intend to customize +any submodule locations. ++ +See the add subcommand for the definition of default remote. deinit [-f|--force] (--all|[--] <path>...):: Unregister the given submodules, i.e. remove the whole @@ -185,7 +190,7 @@ configuration variable: none;; the submodule is not updated. If the submodule is not yet initialized, and you just want to use the -setting as stored in .gitmodules, you can automatically initialize the +setting as stored in `.gitmodules`, you can automatically initialize the submodule with the `--init` option. If `--recursive` is specified, this command will recurse into the @@ -208,7 +213,7 @@ foreach [--recursive] <command>:: Evaluates an arbitrary shell command in each checked out submodule. The command has access to the variables $name, $path, $sha1 and $toplevel: - $name is the name of the relevant submodule section in .gitmodules, + $name is the name of the relevant submodule section in `.gitmodules`, $path is the name of the submodule directory relative to the superproject, $sha1 is the commit as recorded in the superproject, and $toplevel is the absolute path to the top-level of the superproject. @@ -230,7 +235,7 @@ git submodule foreach 'echo $path `git rev-parse HEAD`' sync [--recursive] [--] [<path>...]:: Synchronizes submodules' remote URL configuration setting - to the value specified in .gitmodules. It will only affect those + to the value specified in `.gitmodules`. It will only affect those submodules which already have a URL entry in .git/config (that is the case when they are initialized or freshly added). This is useful when submodule URLs change upstream and you need to update your local @@ -401,7 +406,7 @@ for linkgit:git-clone[1]'s `--reference` and `--shared` options carefully. --[no-]recommend-shallow:: This option is only valid for the update command. The initial clone of a submodule will use the recommended - `submodule.<name>.shallow` as provided by the .gitmodules file + `submodule.<name>.shallow` as provided by the `.gitmodules` file by default. To ignore the suggestions use `--no-recommend-shallow`. -j <n>:: @@ -417,7 +422,7 @@ for linkgit:git-clone[1]'s `--reference` and `--shared` options carefully. FILES ----- -When initializing submodules, a .gitmodules file in the top-level directory +When initializing submodules, a `.gitmodules` file in the top-level directory of the containing repository is used to find the url of each submodule. This file should be formatted in the same way as `$GIT_DIR/config`. The key to each submodule url is "submodule.$name.url". See linkgit:gitmodules[5] |