arguments, and stdin. See the documentation for each hook below for
details.
-'git init' may copy hooks to the new repository, depending on its
+`git init` may copy hooks to the new repository, depending on its
configuration. See the "TEMPLATE DIRECTORY" section in
linkgit:git-init[1] for details. When the rest of this document refers
to "default hooks" it's talking about the default template shipped
applypatch-msg
~~~~~~~~~~~~~~
-This hook is invoked by 'git am'. It takes a single
+This hook is invoked by linkgit:git-am[1]. It takes a single
parameter, the name of the file that holds the proposed commit
-log message. Exiting with a non-zero status causes 'git am' to abort
+log message. Exiting with a non-zero status causes `git am` to abort
before applying the patch.
The hook is allowed to edit the message file in place, and can
pre-applypatch
~~~~~~~~~~~~~~
-This hook is invoked by 'git am'. It takes no parameter, and is
+This hook is invoked by linkgit:git-am[1]. It takes no parameter, and is
invoked after the patch is applied, but before a commit is made.
If it exits with non-zero status, then the working tree will not be
post-applypatch
~~~~~~~~~~~~~~~
-This hook is invoked by 'git am'. It takes no parameter,
+This hook is invoked by linkgit:git-am[1]. It takes no parameter,
and is invoked after the patch is applied and a commit is made.
This hook is meant primarily for notification, and cannot affect
-the outcome of 'git am'.
+the outcome of `git am`.
pre-commit
~~~~~~~~~~
-This hook is invoked by 'git commit', and can be bypassed
+This hook is invoked by linkgit:git-commit[1], and can be bypassed
with the `--no-verify` option. It takes no parameters, and is
invoked before obtaining the proposed commit log message and
making a commit. Exiting with a non-zero status from this script
-causes the 'git commit' command to abort before creating a commit.
+causes the `git commit` command to abort before creating a commit.
The default 'pre-commit' hook, when enabled, catches introduction
of lines with trailing whitespaces and aborts the commit when
such a line is found.
-All the 'git commit' hooks are invoked with the environment
+All the `git commit` hooks are invoked with the environment
variable `GIT_EDITOR=:` if the command will not bring up an editor
to modify the commit message.
prepare-commit-msg
~~~~~~~~~~~~~~~~~~
-This hook is invoked by 'git commit' right after preparing the
+This hook is invoked by linkgit:git-commit[1] right after preparing the
default log message, and before the editor is started.
It takes one to three parameters. The first is the name of the file
(if a `.git/SQUASH_MSG` file exists); or `commit`, followed by
a commit SHA-1 (if a `-c`, `-C` or `--amend` option was given).
-If the exit status is non-zero, 'git commit' will abort.
+If the exit status is non-zero, `git commit` will abort.
The purpose of the hook is to edit the message file in place, and
it is not suppressed by the `--no-verify` option. A non-zero exit
commit-msg
~~~~~~~~~~
-This hook is invoked by 'git commit' and 'git merge', and can be
+This hook is invoked by linkgit:git-commit[1] and linkgit:git-merge[1], and can be
bypassed with the `--no-verify` option. It takes a single parameter,
the name of the file that holds the proposed commit log message.
Exiting with a non-zero status causes the command to abort.
post-commit
~~~~~~~~~~~
-This hook is invoked by 'git commit'. It takes no parameters, and is
+This hook is invoked by linkgit:git-commit[1]. It takes no parameters, and is
invoked after a commit is made.
This hook is meant primarily for notification, and cannot affect
-the outcome of 'git commit'.
+the outcome of `git commit`.
pre-rebase
~~~~~~~~~~
-This hook is called by 'git rebase' and can be used to prevent a
+This hook is called by linkgit:git-rebase[1] and can be used to prevent a
branch from getting rebased. The hook may be called with one or
two parameters. The first parameter is the upstream from which
the series was forked. The second parameter is the branch being
post-checkout
~~~~~~~~~~~~~
-This hook is invoked when a 'git checkout' is run after having updated the
+This hook is invoked when a linkgit:git-checkout[1] is run after having updated the
worktree. The hook is given three parameters: the ref of the previous HEAD,
the ref of the new HEAD (which may or may not have changed), and a flag
indicating whether the checkout was a branch checkout (changing branches,
flag=1) or a file checkout (retrieving a file from the index, flag=0).
-This hook cannot affect the outcome of 'git checkout'.
+This hook cannot affect the outcome of `git checkout`.
-It is also run after 'git clone', unless the --no-checkout (-n) option is
+It is also run after linkgit:git-clone[1], unless the `--no-checkout` (`-n`) option is
used. The first parameter given to the hook is the null-ref, the second the
-ref of the new HEAD and the flag is always 1.
+ref of the new HEAD and the flag is always 1. Likewise for `git worktree add`
+unless `--no-checkout` is used.
This hook can be used to perform repository validity checks, auto-display
differences from the previous HEAD if different, or set working dir metadata
post-merge
~~~~~~~~~~
-This hook is invoked by 'git merge', which happens when a 'git pull'
+This hook is invoked by linkgit:git-merge[1], which happens when a `git pull`
is done on a local repository. The hook takes a single parameter, a status
flag specifying whether or not the merge being done was a squash merge.
-This hook cannot affect the outcome of 'git merge' and is not executed,
+This hook cannot affect the outcome of `git merge` and is not executed,
if the merge failed due to conflicts.
This hook can be used in conjunction with a corresponding pre-commit hook to
pre-push
~~~~~~~~
-This hook is called by 'git push' and can be used to prevent a push from taking
-place. The hook is called with two parameters which provide the name and
-location of the destination remote, if a named remote is not being used both
-values will be the same.
+This hook is called by linkgit:git-push[1] and can be used to prevent
+a push from taking place. The hook is called with two parameters
+which provide the name and location of the destination remote, if a
+named remote is not being used both values will be the same.
Information about what is to be pushed is provided on the hook's standard
input with lines of the form:
than a name which could be expanded (such as `HEAD~`, or a SHA-1) it will be
supplied as it was originally given.
-If this hook exits with a non-zero status, 'git push' will abort without
+If this hook exits with a non-zero status, `git push` will abort without
pushing anything. Information about why the push is rejected may be sent
to the user by writing to standard error.
pre-receive
~~~~~~~~~~~
-This hook is invoked by 'git-receive-pack' on the remote repository,
-which happens when a 'git push' is done on a local repository.
+This hook is invoked by linkgit:git-receive-pack[1] when it reacts to
+`git push` and updates reference(s) in its repository.
Just before starting to update refs on the remote repository, the
pre-receive hook is invoked. Its exit status determines the success
or failure of the update.
still be prevented by the <<update,'update'>> hook.
Both standard output and standard error output are forwarded to
-'git send-pack' on the other end, so you can simply `echo` messages
+`git send-pack` on the other end, so you can simply `echo` messages
for the user.
The number of push options given on the command line of
update
~~~~~~
-This hook is invoked by 'git-receive-pack' on the remote repository,
-which happens when a 'git push' is done on a local repository.
+This hook is invoked by linkgit:git-receive-pack[1] when it reacts to
+`git push` and updates reference(s) in its repository.
Just before updating the ref on the remote repository, the update hook
is invoked. Its exit status determines the success or failure of
the ref update.
- and the new object name to be stored in the ref.
A zero exit from the update hook allows the ref to be updated.
-Exiting with a non-zero status prevents 'git-receive-pack'
+Exiting with a non-zero status prevents `git receive-pack`
from updating that ref.
This hook can be used to prevent 'forced' update on certain refs by
shell to restrict the user's access to only git commands.
Both standard output and standard error output are forwarded to
-'git send-pack' on the other end, so you can simply `echo` messages
+`git send-pack` on the other end, so you can simply `echo` messages
for the user.
The default 'update' hook, when enabled--and with
post-receive
~~~~~~~~~~~~
-This hook is invoked by 'git-receive-pack' on the remote repository,
-which happens when a 'git push' is done on a local repository.
+This hook is invoked by linkgit:git-receive-pack[1] when it reacts to
+`git push` and updates reference(s) in its repository.
It executes on the remote repository once after all the refs have
been updated.
<<pre-receive,'pre-receive'>>
hook does on its standard input.
-This hook does not affect the outcome of 'git-receive-pack', as it
+This hook does not affect the outcome of `git receive-pack`, as it
is called after the real work is done.
This supersedes the <<post-update,'post-update'>> hook in that it gets
names.
Both standard output and standard error output are forwarded to
-'git send-pack' on the other end, so you can simply `echo` messages
+`git send-pack` on the other end, so you can simply `echo` messages
for the user.
The default 'post-receive' hook is empty, but there is
post-update
~~~~~~~~~~~
-This hook is invoked by 'git-receive-pack' on the remote repository,
-which happens when a 'git push' is done on a local repository.
+This hook is invoked by linkgit:git-receive-pack[1] when it reacts to
+`git push` and updates reference(s) in its repository.
It executes on the remote repository once after all the refs have
been updated.
name of ref that was actually updated.
This hook is meant primarily for notification, and cannot affect
-the outcome of 'git-receive-pack'.
+the outcome of `git receive-pack`.
The 'post-update' hook can tell what are the heads that were pushed,
but it does not know what their original and updated values are,
them.
When enabled, the default 'post-update' hook runs
-'git update-server-info' to keep the information used by dumb
+`git update-server-info` to keep the information used by dumb
transports (e.g., HTTP) up to date. If you are publishing
a Git repository that is accessible via HTTP, you should
probably enable this hook.
Both standard output and standard error output are forwarded to
-'git send-pack' on the other end, so you can simply `echo` messages
+`git send-pack` on the other end, so you can simply `echo` messages
for the user.
push-to-checkout
~~~~~~~~~~~~~~~~
-This hook is invoked by 'git-receive-pack' on the remote repository,
-which happens when a 'git push' is done on a local repository, when
+This hook is invoked by linkgit:git-receive-pack[1] when it reacts to
+`git push` and updates reference(s) in its repository, and when
the push tries to update the branch that is currently checked out
and the `receive.denyCurrentBranch` configuration variable is set to
`updateInstead`. Such a push by default is refused if the working
exit with a zero status.
For example, the hook can simply run `git read-tree -u -m HEAD "$1"`
-in order to emulate 'git fetch' that is run in the reverse direction
-with `git push`, as the two-tree form of `read-tree -u -m` is
+in order to emulate `git fetch` that is run in the reverse direction
+with `git push`, as the two-tree form of `git read-tree -u -m` is
essentially the same as `git checkout` that switches branches while
keeping the local changes in the working tree that do not interfere
with the difference between the branches.
pre-auto-gc
~~~~~~~~~~~
-This hook is invoked by 'git gc --auto'. It takes no parameter, and
-exiting with non-zero status from this script causes the 'git gc --auto'
-to abort.
+This hook is invoked by `git gc --auto` (see linkgit:git-gc[1]). It
+takes no parameter, and exiting with non-zero status from this script
+causes the `git gc --auto` to abort.
post-rewrite
~~~~~~~~~~~~
-This hook is invoked by commands that rewrite commits (`git commit
---amend`, 'git-rebase'; currently 'git-filter-branch' does 'not' call
+This hook is invoked by commands that rewrite commits
+(linkgit:git-commit[1] when called with `--amend` and
+linkgit:git-rebase[1]; currently `git filter-branch` does 'not' call
it!). Its first argument denotes the command it was invoked by:
currently one of `amend` or `rebase`. Further command-dependent
arguments may be passed in the future.
sendemail-validate
~~~~~~~~~~~~~~~~~~
-This hook is invoked by 'git send-email'. It takes a single parameter,
+This hook is invoked by linkgit:git-send-email[1]. It takes a single parameter,
the name of the file that holds the e-mail to be sent. Exiting with a
-non-zero status causes 'git send-email' to abort before sending any
+non-zero status causes `git send-email` to abort before sending any
e-mails.
+fsmonitor-watchman
+~~~~~~~~~~~~~~~~~~
+
+This hook is invoked when the configuration option `core.fsmonitor` is
+set to `.git/hooks/fsmonitor-watchman`. It takes two arguments, a version
+(currently 1) and the time in elapsed nanoseconds since midnight,
+January 1, 1970.
+
+The hook should output to stdout the list of all files in the working
+directory that may have changed since the requested time. The logic
+should be inclusive so that it does not miss any potential changes.
+The paths should be relative to the root of the working directory
+and be separated by a single NUL.
+
+It is OK to include files which have not actually changed. All changes
+including newly-created and deleted files should be included. When
+files are renamed, both the old and the new name should be included.
+
+Git will limit what files it checks for changes as well as which
+directories are checked for untracked files based on the path names
+given.
+
+An optimized way to tell git "all files have changed" is to return
+the filename `/`.
+
+The exit status determines whether git will use the data from the
+hook to limit its search. On error, it will fall back to verifying
+all files and folders.
GIT
---