summaryrefslogtreecommitdiff
path: root/Documentation/githooks.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/githooks.txt')
-rw-r--r--Documentation/githooks.txt49
1 files changed, 45 insertions, 4 deletions
diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index 62908602e7..86f804720a 100644
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -595,10 +595,51 @@ processed by rebase.
sendemail-validate
~~~~~~~~~~~~~~~~~~
-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
-e-mails.
+This hook is invoked by linkgit:git-send-email[1].
+
+It takes these command line arguments. They are,
+1. the name of the file which holds the contents of the email to be sent.
+2. The name of the file which holds the SMTP headers of the email.
+
+The SMTP headers are passed in the exact same way as they are passed to the
+user's Mail Transport Agent (MTA). In effect, the email given to the user's
+MTA, is the contents of $2 followed by the contents of $1.
+
+An example of a few common headers is shown below. Take notice of the
+capitalization and multi-line tab structure.
+
+ From: Example <from@example.com>
+ To: to@example.com
+ Cc: cc@example.com,
+ A <author@example.com>,
+ One <one@example.com>,
+ two@example.com
+ Subject: PATCH-STRING
+
+Exiting with a non-zero status causes `git send-email` to abort
+before sending any e-mails.
+
+The following environment variables are set when executing the hook.
+
+`GIT_SENDEMAIL_FILE_COUNTER`::
+ A 1-based counter incremented by one for every file holding an e-mail
+ to be sent (excluding any FIFOs). This counter does not follow the
+ patch series counter scheme. It will always start at 1 and will end at
+ GIT_SENDEMAIL_FILE_TOTAL.
+
+`GIT_SENDEMAIL_FILE_TOTAL`::
+ The total number of files that will be sent (excluding any FIFOs). This
+ counter does not follow the patch series counter scheme. It will always
+ be equal to the number of files being sent, whether there is a cover
+ letter or not.
+
+These variables may for instance be used to validate patch series.
+
+The sample `sendemail-validate` hook that comes with Git checks that all sent
+patches (excluding the cover letter) can be applied on top of the upstream
+repository default branch without conflicts. Some placeholders are left for
+additional validation steps to be performed after all patches of a given series
+have been applied.
fsmonitor-watchman
~~~~~~~~~~~~~~~~~~