Creating patches

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Revision as of 11:54, 7 June 2015 by Ncopa (talk | contribs) (Explain how to make a resend of a patch)
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Patches should be created with git and submitted to alpine-aports mailing list with git send-email.

Only the last commit with 'git send-email'

To submit the last commit as a patch to alpine-aports mailing list:

git send-email --to HEAD^

Tip: You save the To-address in the git config with:

git config

That way you can omit the '--to'

The first line in commit message will be subject and the long description (separated with empty line) will be the body in the email. The example below shows

testing/packagename: new aport  <- Subject line

Enter some details about your package <- Mail body
here if you like and an url where to find more information

Note: The git send-email command is provided by the git-email package (git-perl in v2.7 and older).

See Development using git#Email_configuration on how configure SMTP Auth.

Multiple commits with 'git send-email'

If you have many commits you can create a directory with patches and send them with git send-email.

rm -Rf patches mkdir patches git format-patch -o patches origin git send-email patches --compose --no-chain-reply-to --to

You can also format patches for the last x number of commits with:

git format-patch -x -o patches

This will produce the patches for each local commit in the directory "patches" and send them. Use --no-chain-reply-to to avoid that each patch is sent as a reply to the previous patch.


  • [PATCH 0/m]
    • [PATCH 1/m]
      • [PATCH 2/m]
        • ...

With the option --no-chain-reply-to the patches will be sent as a reply to the first email, the cover letter (the [PATCH 0/m]) and will make the email thread nicer. Like this:

  • [PATCH 0/m]
    • [PATCH 1/m]
    • [PATCH 2/m]
    • ..

Resend an updated patch

Sometimes patches are rejected due to minor issues in the patch. Do not send an incremental patch on top of your initial, bad, patch. Instead, recreate the patch and send a new, fixed version of your patch. (use git commit --amend to edit a local commit).

When you sending a second version of the patch use --subject-prefix "PATCH v2" to indicate that this is a new version of a previously sent patch. You may also use --in-reply-to <message-id> where <message-id> the the id of email requesting the resend.

You should also write a note on the what was changed. Use --annotate for this and write the comment under the three dashes "---" so the note is not included in the commit message. For example:

Subject: [PATCH v2] testing/mypackage: new aport
Example package
Changes v1 -> v2:
 - removed depends
 - added zlib-dev to makedepends

 testing/mypackage/APKBUILD | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 testing/mypackage/APKBUILD

Note that the notes that are below the "---" will not be included in the commit message.