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Ask Bjørn Hansen 2009-02-12 01:21:20 -08:00
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@ -25,6 +25,20 @@ button to get your own repository.
will check out your copy into a directory called qpsmtpd
=head3 Making a branch for your change
As a general rule, you'll be better off if you do your changes on a
branch - preferably a branch per unrelated change.
You can use the C<git branch> command to see which branch you are on.
The easiest way to make a new branch is
git checkout -b topic/my-great-change
This will create a new branch with the name "topic/my-great-change"
(and your current commit as the starting point).
=head3 Committing a change
Edit the appropriate files, and be sure to run the test suite.
@ -35,9 +49,24 @@ Edit the appropriate files, and be sure to run the test suite.
When you're ready to check it in...
git add lib/Qpsmtpd.pm # to let git know you changed the file
git add lib/Qpsmtpd.pm # to let git know you changed the file
git add --patch plugin/tls # interactive choose which changes to add
git diff --cached # review changes added
git commit
git push origin # to send to github
git log -p # review your commit a last time
git push origin # to send to github
=head3 Submit patches by mail
If you don't use github, or if you want to submit your patch to the
mailing list for review (often a good idea), you can use
git format-patch
to generate "patch files". For example "git format-patch HEAD~3" will
give you three files with the last changes.
Then use "git send-email" to send them to the mailing list for review.
=head3 Merging changes back in from the master repository
@ -56,8 +85,15 @@ Forward-port local commits to the updated upstream head
git rebase abh/master
If you have a change that conflicts with an upstream change (git will
let you know) you have two options. You can merge it and then commit
the merge, or you can skip it entirely:
let you know) you have two options.
Manually fix the conflict and then do
git add some/file
git commit
Or if the conflicting upstream commit did the same logical change then
you might want to just skip the local change:
git rebase --skip
@ -72,10 +108,23 @@ your change before applying it.
If you get your working copy into a state you don't like, you can
always revert to the last commit:
git reset --hard HEAD
git reset --hard HEAD
Or throw away your most recent commit:
git reset --hard HEAD^
If you make a mistake with this, git is pretty good about keeping your
commits around even as you merge, rebase and reset away. This log of
your git changes is called with "git reflog".
=head3 Applying other peoples changes
One easy way to apply other peoples changes is to use C<git am>. That
will go ahead and commit the change. To modify it, you can use C<git
commit --amend>.
If you get a change in an email with the patch, one easy way to apply
other peoples changes is to use C<git am>. That will go ahead and
commit the change. To modify it, you can use C<git commit --amend>.
If the changes are in a repository, you can add that repository with
"git remote add" and then either merge them in with "git merge" or
pick just the relevant commits with "git cherry-pick".