diff options
Diffstat (limited to 'Documentation/git-submodule.txt')
| -rw-r--r-- | Documentation/git-submodule.txt | 103 |
1 files changed, 84 insertions, 19 deletions
diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt index 6ec3fef079..bfef8a0c62 100644 --- a/Documentation/git-submodule.txt +++ b/Documentation/git-submodule.txt @@ -9,12 +9,14 @@ git-submodule - Initialize, update or inspect submodules SYNOPSIS -------- [verse] -'git submodule' [--quiet] add [-b branch] [-f|--force] - [--reference <repository>] [--] <repository> [<path>] +'git submodule' [--quiet] add [-b <branch>] [-f|--force] [--name <name>] + [--reference <repository>] [--depth <depth>] [--] <repository> [<path>] 'git submodule' [--quiet] status [--cached] [--recursive] [--] [<path>...] 'git submodule' [--quiet] init [--] [<path>...] -'git submodule' [--quiet] update [--init] [-N|--no-fetch] [--rebase] - [--reference <repository>] [--merge] [--recursive] [--] [<path>...] +'git submodule' [--quiet] deinit [-f|--force] [--] <path>... +'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch] + [-f|--force] [--rebase] [--reference <repository>] [--depth <depth>] + [--merge] [--recursive] [--] [<path>...] 'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>] [commit] [--] [<path>...] 'git submodule' [--quiet] foreach [--recursive] <command> @@ -43,9 +45,9 @@ if you choose to go that route. Submodules are composed from a so-called `gitlink` tree entry in the main repository that refers to a particular commit object within the inner repository that is completely separate. -A record in the `.gitmodules` file at the root of the source -tree assigns a logical name to the submodule and describes -the default URL the submodule shall be cloned from. +A record in the `.gitmodules` (see linkgit:gitmodules[5]) file at the +root of the source tree assigns a logical name to the submodule and +describes the default URL the submodule shall be cloned from. The logical name can be used for overriding this URL within your local repository configuration (see 'submodule init'). @@ -75,18 +77,25 @@ 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 -repository. If the superproject doesn't have an origin configured +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 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 +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. @@ -107,7 +116,6 @@ status:: initialized, `+` if the currently checked out submodule commit does not match the SHA-1 found in the index of the containing repository and `U` if the submodule has merge conflicts. - This command is the default command for 'git submodule'. + If `--recursive` is specified, this command will recurse into nested submodules, and show their status as well. @@ -118,8 +126,10 @@ linkgit:git-status[1] and linkgit:git-diff[1] will provide that information too (and can also report changes to a submodule's work tree). init:: - Initialize the submodules, i.e. register each submodule name - and url found in .gitmodules into .git/config. + 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`. @@ -130,12 +140,28 @@ init:: the explicit 'init' step if you do not intend to customize any submodule locations. +deinit:: + Unregister the given submodules, i.e. remove the whole + `submodule.$name` section from .git/config together with their work + tree. Further calls to `git submodule update`, `git submodule foreach` + and `git submodule sync` will skip any unregistered submodules until + they are initialized again, so use this command if you don't want to + have a local checkout of the submodule in your work tree anymore. If + you really want to remove a submodule from the repository and commit + that use linkgit:git-rm[1] instead. ++ +If `--force` is specified, the submodule's work tree will be removed even if +it contains local modifications. + update:: Update the registered submodules, i.e. clone missing submodules and checkout the commit specified in the index of the containing repository. This will make the submodules HEAD be detached unless `--rebase` or `--merge` is specified or the key `submodule.$name.update` is set to - `rebase`, `merge` or `none`. + `rebase`, `merge` or `none`. `none` can be overridden by specifying + `--checkout`. Setting the key `submodule.$name.update` to `!command` + will cause `command` to be run. `command` can be any arbitrary shell + command that takes a single argument, namely the sha1 to update to. + If the submodule is not yet initialized, and you just want to use the setting as stored in .gitmodules, you can automatically initialize the @@ -144,9 +170,10 @@ submodule with the `--init` option. If `--recursive` is specified, this command will recurse into the registered submodules, and update any nested submodules within. + -If the configuration key `submodule.$name.update` is set to `none` the -submodule with name `$name` will not be updated by default. This can be -overriden by adding `--checkout` to the command. +If `--force` is specified, the submodule will be checked out (using +`git checkout --force` if appropriate), even if the commit specified in the +index of the containing repository already matches the commit checked out in +the submodule. summary:: Show commit summary between the given commit (defaults to HEAD) and @@ -185,7 +212,7 @@ commit for each submodule. sync:: Synchronizes submodules' remote URL configuration setting to the value specified in .gitmodules. It will only affect those - submodules which already have an url entry in .git/config (that is the + 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 repositories accordingly. @@ -202,13 +229,19 @@ OPTIONS -b:: --branch:: Branch of repository to add as submodule. + The name of the branch is recorded as `submodule.<path>.branch` in + `.gitmodules` for `update --remote`. -f:: --force:: - This option is only valid for add and update commands. + This option is only valid for add, deinit and update commands. When running add, allow adding an otherwise ignored submodule path. + When running deinit the submodule work trees will be removed even if + they contain local changes. When running update, throw away local changes in submodules when - switching to a different commit. + switching to a different commit; and always run a checkout operation + in the submodule, even if the commit listed in the index of the + containing repository matches the commit checked out in the submodule. --cached:: This option is only valid for status and summary commands. These @@ -228,6 +261,27 @@ OPTIONS (the default). This limit only applies to modified submodules. The size is always limited to 1 for added/deleted/typechanged submodules. +--remote:: + This option is only valid for the update command. Instead of using + the superproject's recorded SHA-1 to update the submodule, use the + status of the submodule's remote-tracking branch. The remote used + is branch's remote (`branch.<name>.remote`), defaulting to `origin`. + The remote branch used defaults to `master`, but the branch name may + be overridden by setting the `submodule.<name>.branch` option in + either `.gitmodules` or `.git/config` (with `.git/config` taking + precedence). ++ +This works for any of the supported update procedures (`--checkout`, +`--rebase`, etc.). The only change is the source of the target SHA-1. +For example, `submodule update --remote --merge` will merge upstream +submodule changes into the submodules, while `submodule update +--merge` will merge superproject gitlink changes into the submodules. ++ +In order to ensure a current tracking branch state, `update --remote` +fetches the submodule's remote repository before calculating the +SHA-1. If you don't want to fetch, you should use `submodule update +--remote --no-fetch`. + -N:: --no-fetch:: This option is only valid for the update command. @@ -257,6 +311,11 @@ OPTIONS Initialize all submodules for which "git submodule init" has not been called so far before updating. +--name:: + This option is only valid for the add command. It sets the submodule's + name to the given string instead of defaulting to its path. The name + must be valid as a directory name and may not end with a '/'. + --reference <repository>:: This option is only valid for add and update commands. These commands sometimes need to clone a remote repository. In this case, @@ -271,6 +330,12 @@ for linkgit:git-clone[1]'s `--reference` and `--shared` options carefully. only in the submodules of the current repo, but also in any nested submodules inside those submodules (and so on). +--depth:: + This option is valid for add and update commands. Create a 'shallow' + clone with a history truncated to the specified number of revisions. + See linkgit:git-clone[1] + + <path>...:: Paths to submodule(s). When specified this will restrict the command to only operate on the submodules found at the specified paths. |