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<!-- -*- mode: markdown; -*- -->

# Handling new upstream releases #

Upstream recently moved their third party assets to a separate git
repository.  Their build scripts clone this git repository as part of
the build.  The stated purpose is for easier repository access control
and bug triage: as far as Debian is concerned, the assets repository
does not belong in its own source package.

To work around this we maintain a pre-DFSG upstream branch which has
the third party assets present as a git-subtree(1).  New upstream
versions are merged into this branch.  We then perform DFSG-cleaning
on an emphemeral branch and tag the result, so that gbp can generate
orig tarballs.  Finally the tag is merged into our master Debian
packaging branch.  Step-by-step, supposing upstream releases version
1.2.3:

1. git remote add upstream https://github.com/gorhill/uBlock
2. git remote update
3. git checkout pre-dfsg
4. git merge 1.2.3
5. git subtree pull -P uAssets https://github.com/uBlockOrigin/uAssets master
6. git checkout -b upstream pre-dfsg
7. git show master:debian/clean-dfsg.sh | sh
8. git commit -m "new upstream version 1.2.3 DFSG-cleaned"
9. git tag 1.2.3+dfsg
10. git checkout master
11. git branch -D upstream
12. git merge 1.2.3+dfsg
13. Update debian/changelog for new version.
14. Ensure that debian/copyright is up-to-date with {u,}assets/ublock/
    dir.
    Find new non-free filters: `git diff --stat 1.2.2+dfsg..1.2.3+dfsg --  uAssets/thirdparties/`
15. Update the upstream changelog with `debian/rules get-orig-changelog`.
16. Cut the Debian release with gbp buildpackage.
17. Commit the generated *.orig.tar.xz file with pristine-tar.
18. git push alioth --tags :
19. Upload to ftp-master with your favourite tool

## Possible improvements ##

TODO: fold steps 2--11 into clean-dfsg.sh e.g. `% clean-dfsg.sh 1.2.3`

TODO: instead, maintain a dfsg-clean branch with the deletions.  Then
can just do: git merge new.version && git tag new.version-dfsg

## Original setup of the pre-dfsg branch ##

1. git checkout -b pre-dfsg 1.2.2
2. git subtree add -P uAssets https://github.com/uBlockOrigin/uAssets master

 -- Sean Whitton <spwhitton@spwhitton.name>, Sun,  6 Nov 2016 14:01:10 -0700