[Style Guides](#style-guides)
* [Coding Conventions](#coding-conventions)
+ * [Commit Message Formats](#commit-message-formats)
+ * [New Changes](#new-changes)
+ * [OpenZFS Patch Ports](#openzfs-patch-ports)
Helpful resources
without conflicts.
* Please attempt to limit pull requests to a single commit which resolves
one specific issue.
+* Make sure your commit messages are in the correct format. See the
+[Commit Message Formats](#commit-message-formats) section for more information.
* When updating a pull request squash multiple commits by performing a
[rebase](https://git-scm.com/docs/git-rebase) (squash).
* For large pull requests consider structuring your changes as a stack of
We currently use [C Style and Coding Standards for
SunOS](http://www.cis.upenn.edu/%7Elee/06cse480/data/cstyle.ms.pdf) as our
coding convention.
+
+### Commit Message Formats
+#### New Changes
+Commit messages for new changes must meet the following guidelines:
+* In 50 characters or less, provide a summary of the change as the
+first line in the commit message.
+* A body which provides a description of the change. If necessary,
+please summarize important information such as why the proposed
+approach was chosen or a brief description of the bug you are resolving.
+Each line of the body must be 72 characters or less.
+* The last line must be a `Signed-off-by:` line with the developer's
+name followed by their email.
+
+Git can append the `Signed-off-by` line to your commit messages. Simply
+provide the `-s` or `--signoff` option when performing a `git commit`.
+For more information about writing commit messages, visit [How to Write
+a Git Commit Message](https://chris.beams.io/posts/git-commit/).
+An example commit message is provided below.
+
+```
+This line is a brief summary of your change
+
+Please provide at least a couple sentences describing the
+change. If necessary, please summarize decisions such as
+why the proposed approach was chosen or what bug you are
+attempting to solve.
+
+Signed-off-by: Contributor <contributor@email.com>
+```
+
+#### OpenZFS Patch Ports
+If you are porting an OpenZFS patch, the commit message must meet
+the following guidelines:
+* The first line must be the summary line from the OpenZFS commit.
+It must begin with `OpenZFS dddd - ` where `dddd` is the OpenZFS issue number.
+* Provides a `Authored by:` line to attribute the patch to the original author.
+* Provides the `Reviewed by:` and `Approved by:` lines from the original
+OpenZFS commit.
+* Provides a `Ported-by:` line with the developer's name followed by
+their email.
+* Provides a `OpenZFS-issue:` line which is a link to the original illumos
+issue.
+* Provides a `OpenZFS-commit:` line which links back to the original OpenZFS
+commit.
+* If necessary, provide some porting notes to describe any deviations from
+the original OpenZFS commit.
+
+An example OpenZFS patch port commit message is provided below.
+```
+OpenZFS 1234 - Summary from the original OpenZFS commit
+
+Authored by: Original Author <original@email.com>
+Reviewed by: Reviewer One <reviewer1@email.com>
+Reviewed by: Reviewer Two <reviewer2@email.com>
+Approved by: Approver One <approver1@email.com>
+Ported-by: ZFS Contributor <contributor@email.com>
+
+Provide some porting notes here if necessary.
+
+OpenZFS-issue: https://www.illumos.org/issues/1234
+OpenZFS-commit: https://github.com/openzfs/openzfs/commit/abcd1234
+```
- [ ] I have read the **CONTRIBUTING** document.
- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.
+- [ ] All commit messages are properly formatted and contain `Signed-off-by`.
- [ ] Change has been approved by a ZFS on Linux member.
sed -i 's/Release:[[:print:]]*/Release: $(RELEASE)/' \
$(distdir)/META
-checkstyle: cstyle shellcheck flake8
+checkstyle: cstyle shellcheck flake8 commitcheck
+
+commitcheck:
+ @if git rev-parse --git-dir > /dev/null 2>&1; then \
+ scripts/commitcheck.sh; \
+ fi
cstyle:
@find ${top_srcdir} -name '*.[hc]' ! -name 'zfs_config.*' \
scripts/zloop.sh \
scripts/zfs-tests.sh \
scripts/zfs.sh; \
+ scripts/commitcheck.sh; \
(find cmd/zed/zed.d/*.sh -type f) | \
grep -v 'zfs-script-config' | \
while read file; do \
--- /dev/null
+#!/bin/bash
+
+REF="HEAD"
+
+# test a url
+function test_url()
+{
+ url="$1"
+ if ! curl --output /dev/null --max-time 60 \
+ --silent --head --fail "$url" ; then
+ echo "\"$url\" is unreachable"
+ return 1
+ fi
+}
+
+# check for a tagged line
+function check_tagged_line()
+{
+ regex='^\s*'"$1"':\s+\S+\s+\<\S+\>'
+ foundline=$(git log -n 1 "$REF" | egrep -m 1 "$regex")
+ if [ -z "$foundline" ]; then
+ echo "error: missing \"$1\""
+ return 1
+ fi
+
+ return 0
+}
+
+# check for a tagged line and check that the link is valid
+function check_tagged_line_with_url ()
+{
+ regex='^\s*'"$1"':\s+\K(\S+)'
+ foundline=$(git log -n 1 "$REF" | grep -Po "$regex")
+ if [ -z "$foundline" ]; then
+ echo "error: missing \"$1\""
+ return 1
+ fi
+
+ if ! test_url "$foundline"; then
+ return 1
+ fi
+
+ return 0
+}
+
+# check commit message for a normal commit
+function new_change_commit()
+{
+ error=0
+
+ # subject is not longer than 50 characters
+ long_subject=$(git log -n 1 --pretty=%s "$REF" | egrep -m 1 '.{51}')
+ if [ -n "$long_subject" ]; then
+ echo "error: commit subject over 50 characters"
+ error=1
+ fi
+
+ # need a signed off by
+ if ! check_tagged_line "Signed-off-by" ; then
+ error=1
+ fi
+
+ # ensure that no lines in the body of the commit are over 72 characters
+ body=$(git log -n 1 --pretty=%b "$REF" | egrep -m 1 '.{73}')
+ if [ -n "$body" ]; then
+ echo "error: commit message body contains line over 72 characters"
+ error=1
+ fi
+
+ return $error
+}
+
+function is_openzfs_port()
+{
+ # subject starts with OpenZFS means it's an openzfs port
+ subject=$(git log -n 1 --pretty=%s "$REF" | egrep -m 1 '^OpenZFS')
+ if [ -n "$subject" ]; then
+ return 0
+ fi
+
+ return 1
+}
+
+function openzfs_port_commit()
+{
+ # subject starts with OpenZFS dddd
+ subject=$(git log -n 1 --pretty=%s "$REF" | egrep -m 1 '^OpenZFS [[:digit:]]+ - ')
+ if [ -z "$subject" ]; then
+ echo "OpenZFS patch ports must have a summary that starts with \"OpenZFS dddd - \""
+ error=1
+ fi
+
+ # need an authored by line
+ if ! check_tagged_line "Authored by" ; then
+ error=1
+ fi
+
+ # need a reviewed by line
+ if ! check_tagged_line "Reviewed by" ; then
+ error=1
+ fi
+
+ # need a approved by line
+ if ! check_tagged_line "Approved by" ; then
+ error=1
+ fi
+
+ # need ported by line
+ if ! check_tagged_line "Ported-by" ; then
+ error=1
+ fi
+
+ # need a url to openzfs commit and it should be valid
+ if ! check_tagged_line_with_url "OpenZFS-commit" ; then
+ error=1
+ fi
+
+ # need a url to illumos issue and it should be valid
+ if ! check_tagged_line_with_url "OpenZFS-issue" ; then
+ error=1
+ fi
+
+ return $error
+}
+
+if [ -n "$1" ]; then
+ REF="$1"
+fi
+
+# if openzfs port, test against that
+if is_openzfs_port; then
+ if ! openzfs_port_commit ; then
+ exit 1
+ else
+ exit 0
+ fi
+fi
+
+# have a normal commit
+if ! new_change_commit ; then
+ exit 1
+fi
+
+exit 0