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Version: 0.2-ghc
Author: Robin Sommer <>
Date: 2018-06-18


git-notifier is a script to be used with git as a post-receive hook. Once installed, it emails out a summary of all changes each time a user pushes an update to the repository. Different from other similar scripts, git-notifier sends exactly one email per change, each of which includes a complete diff of all modifications as well as the set of branches from which the new revision can be reached. The scripts ensure that that each change is mailed out only exactly once by keeping a state file of already reported revisions. The script integrates nicely with gitolite.

Here's example of such a git-notifier mail:

Subject: [git/git-notifier] master: Adding www target to Makefile. (7dc1f95)

Repository : ssh://<removed>/git-notifier

On branch  : master


commit 7dc1f95c97275618d5bde1aaf6760cd7ff6a6ef7
Author: Robin Sommer <>
Date:   Sun Dec 19 20:21:38 2010 -0800

    Adding www target to Makefile.


 Makefile |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Makefile b/Makefile
index e184c66..9c9951b 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,8 @@ VERSION   = 0.1


+WWW = $(HOME)/www/git-notifier

@@ -13,3 +15,7 @@ dist:
    cp $(DISTFILES) git-notifier-$(VERSION)
    tar czvf git-notifier-$(VERSION).tgz git-notifier-$(VERSION)
    rm -rf git-notifier-$(VERSION)
+www: dist
+ README >$(WWW)/index.html
+   cp git-notifier-$(VERSION).tgz $(WWW)

In addition, git-notifier also mails updates when branches or annotated tags are created or removed; and it furthermore mails a revision summary if a head moves to now include commits already reported previously (e.g., on fast-forwards).

If a commit message contains [nodiff], the generated mail will not include a diff. If a commit message contains [nomail], no mail will be send for that change.


You can download the current version here:


The CHANGES file records recent updates to git-notifier.


The basic installation is simple: just run the script from hooks/post-receive, as in:



By default, the script will send its mails to the user running the git-notifier (i.e., the one doing the update). As that's usually not the desired recipient, an alternative email address can be specified via command line or git options, see the mailinglist option below.


git-notifier supports the options below. Alternatively to giving them on the command line, all of them can alse be set via git config hooks.<option>. For example, to set a recipient address, do git config hooks.mailinglist


Prints the mails that would normally be generated to standard error instead, without sending them. The output also includes some further debugging information, like the git commands being executed during operation.

Note that in debug mode, the script still updates its state file, i.e., if there are changes that haven't been reported yet, they will only be printed, not mailed out next time. If you don't want that, use --noupdate as well.

Specifies a prefix for the mails' subject line. Default is [git]. Note that the name of this option is compatible with some of other git notification scripts.
--hostname <name>
Defines the hostname to use when building the repository path shown in the notification mails. Default is the canonical name of the system the script is running on.
--log <file>
Write logging information into the given file. Default is git-notifier.log inside the repository.
--mailinglist <address>
Specifies the recipient for all generated mails. Default is mailing to the system account that is running the script.
--maxdiffsize <size in KB>
Limits the size of mails by giving a maximum number of bytes that a diff may have. If the diff for a change is larger than this value, a notification mail is still send out but the diff is excluded (and replaced with a note saying so). Default is 50K.
Does not update the internal state file, meaning that any updates will be reported again next time the script is run.
--sender <address>
Defines the sender address for all generated mails. Default is the user doing the update (if gitolite is used, that's the gitolite acccount doing the push, not the system account running git-notifier.)
Does not send out any mail notifications but still updates the index. In other words, all recent changes will be marked as "seen", without reporting them.
--users <file>

This is only for installations using gitolite <XXX>, for which the default sender address for all mails would normally be the gitolite user account name of the person doing the push. With this option, one can alternatively specify a file that maps such account names to alternative addresses, which will then be used as the sender for mails.

The file must consist of line of the form <gitolite-user> <sender>, where sender will be used for the mails and can include spaces. Empty lines and lines starting with # are ignored. It's ok if for a user no entry is found, in which case the default value will be used.

For example, if there's a gitolite user account "joe", one could provide a users file like this:

joe    Joe Smith <>

Now all mails triggered by Joe will have the specified sender.

Note that even if --users is not given, git-notifier will still look for such a file in ../conf/sender.cfg', relative to the top-level repository directory. In other words, you can check a file sender.cfg containing the mappings into gitolite's config/ directory and it should Just Work.


git-notifier comes with a BSD-style licence.