activemq-artemis/docs/hacking-guide/en/maintainers.md

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2015-05-13 13:49:42 -04:00
# Notes for Maintainers
Core ActiveMQ Artemis members have write access to the Apache ActiveMQ Artemis repositories and will be responsible for
acknowledging and pushing commits contributed via pull requests on GitHub.
## Commit Messages
Please ensure the commit messages follow the 50/72 format as described [here](code.md#commitMessageDetails).
## Configuring git repositories
Aside from the traditional `origin` and `upstream` repositories committers will need an additional reference for the
canonical Apache git repository where they will be merging and pushing pull-requests. For the purposes of this document,
let's assume these ref/repo associations already exist as described in the [Working with the Code](code.md) section:
- `origin` : https://github.com/(your-user-name)/activemq-artemis.git
- `upstream` : https://github.com/apache/activemq-artemis
1. Add the canonical Apache repository as a remote. Here we call it `apache`.
$ git remote add apache https://git-wip-us.apache.org/repos/asf/activemq-artemis.git
1. Add the following section to your <artemis-repo>/.git/config statement to fetch all pull requests sent to the GitHub
mirror. We are using `upstream` as the remote repo name (as noted above), but the remote repo name may be different
if you choose. Just be sure to edit all references to the remote repo name so it's consistent.
[remote "upstream"]
url = git@github.com:apache/activemq-artemis.git
fetch = +refs/heads/*:refs/remotes/upstream/*
fetch = +refs/pull/*/head:refs/remotes/upstream/pr/*
## Merging and pushing pull requests
Here are the basic commands to retrieve pull requests, merge, and push them to the canonical Apache repository:
1. Download all the remote branches etc... including all the pull requests.
$ git fetch --all
Fetching origin
Fetching upstream
remote: Counting objects: 566, done.
remote: Compressing objects: 100% (188/188), done.
remote: Total 566 (delta 64), reused 17 (delta 17), pack-reused 351
Receiving objects: 100% (566/566), 300.67 KiB | 0 bytes/s, done.
Resolving deltas: 100% (78/78), done.
From github.com:apache/activemq-artemis
* [new ref] refs/pull/105/head -> upstream/pr/105
1. Checkout the pull request you wish to review
$ git checkout pr/105
1. Once you've reviewed the change and are ready to merge checkout `master`.
$ git checkout master
1. Ensure you are up to date
$ git pull
1. Create a new merge commit from the pull-request. IMPORTANT: The commit message here should be something like: "This
closes #105" where "105" is the pull request ID. The "#105" shows up as a link in the GitHub UI for navigating to
the PR from the commit message.
$ git merge --no-ff pr/105
1. Push to the canonical Apache repo.
$ git push apache master
#### Notes:
The GitHub mirror repository (i.e. `upstream`) is cloning the canonical Apache repository. Because of this there may be
a slight delay between when a commit is pushed to the Apache repo and when that commit is reflected in the GitHub mirror.
This may cause some difficulty when trying to push a PR to `apache` that has been merged on the out-of-date GitHub mirror.
You can wait for the mirror to update before performing the steps above or you can change your local master branch to
track the master branch on the canonical Apache repository rather than the master branch on the GitHub mirror:
$ git branch master -u apache/master
Where `apache` points to the canonical Apache repository.
If you'd like your local master branch to always track `upstream/master` (i.e. the GitHub mirror) then another way to
achieve this is to add another branch that tracks `apache/master` and push from that branch e.g.
$ git checkout master
$ git branch apache_master --track apache/master
$ git pull
$ git merge --no-ff pr/105
$ git push