Difference between revisions of "How to submit a patch to OpenEmbedded"
(→Set up git)
Revision as of 07:52, 24 November 2010
A task-oriented guide to creating a patch
Note: More details are available on the policy pages, but this document is good enough for most beginners.
Let's say you create a new bitbake recipe for OpenEmbedded and you'd like to submit it for inclusion (and you've already tested that it works, of course).
Set up git
Properly configuring git (using email@example.com as an example user)
On Debain / Ubuntu (Note: Fedora uses `yum` OpenSuse uses zypper or yast)
sudo aptitude install git-core git-email
These are important to the commit meta-data
git config --global user.name "Tekkub" git config --global user.email "firstname.lastname@example.org"
Any Google Apps account
git config --global sendemail.smtpserver smtp.gmail.com git config --global sendemail.smtpserverport 587 git config --global sendemail.smtpencryption tls git config --global sendemail.smtpuser email@example.com
You can use the --envelope-sender option to have the email appear to from the address you are subscribed to the list. You will need to use the Accounts and import tab ender the gmail settings tab. Use the Send mail ass selection to address you want to send email from.
Create and Commit your patch
1. First you have to subscribe to the mailing-list firstname.lastname@example.org to be able to post your patch. See Mailing lists
2. Commit with a concise and descriptive message - one that explains your changes in a way others get a short overview without looking at the code.
cd org.openembedded.dev/ # or whereever you keep your clone of the repo git add recipes/nodejs/ git commit -s # don't use the -m option but include my signature
nodejs: added recipe for v0.2.1 * included libev-cross patch which prevents wscript from executing cross-compiled code * included node-cross patch which forwards DEST_CPU to v8's ARCH
3. Create your patch. Use -N for N commits to be included in the patch. Use -s to add a signoff line like "Signed-off-by: Tekku B. <email@example.com>"
git format-patch -1 # creating a patch for my only commit
If you are submitting a second version also add
4. Send your patch to patchwork
git send-email --firstname.lastname@example.org 001-nodejs-added-recipe-for-v0.2.1
Your patch will be immediately visible on http://patchwork.openembedded.org/
5. Once your patch has been accepted or rejected, create an account and update the status to "accepted" or "rejected"
5++. If you get soft-rejected (a lot of feedback), you should make changes according to the feedback, submit the next version, and update the status of the previous patch to "superseded". Remember to use `--subject-prefix` to mark the patch iteration.
steps for people which don't have smtp access for git
Patches should not be set as attachment but inline.
If you do not have smtp access to your email account you have two options:
1. use a different account (e.g. gmail). you can make one especially for this. Note that the account may differ from the one in signed-off (although that is inconvenient)
2. just include the patch in the body of your email. Make sure you use an email client that does not touch the message (turn spaces in tabs, wrap lines etc etc).
A good mail client to do so is pine (or alpine) or mutt. For more information refer to Documentation/email-clients.txt in linux kernel sources.