Commit f603d79e authored by Committed by Alain Takoudjou
NXD Teach GitLab about patches
Teach GitLab not only to merge changes from a merge-request, but also to apply patches posted to merge-request in a way like `git am` would do - without merge commit and directly on top of current branch. Which way to go is selected by user in web UI, and apply patches is the first option. There are 3 cases: - only 1 commit is present in MR -> the only available option is to apply that single commit as one patch without a merge ( There is no need for merge commit in this case at all: information about user who applied the patch goes to "Committer" field in resultant commit. Avoiding 1 merge per 1 patch results in cleaner history ) It is also possible to review patch description directly in web UI, before doing the actual application, and correct / amend it as needed. - several commits are present in MR: * it is possible to apply the patches directly on top of current branch. Again information about who applied what goes to "Committer" field. * it is possible to merge MR changes with making a merge commit. This variant is useful, when patches from a MR do several logical steps to reach one goal, and MR description contain cover letter for whole patch series. in this case original commits stay untouched and resulting merge will contain MR author as author, user who accepted MR as committer, and cover letter as merge commit message. NOTE we avoid useless "Merge branch X into Y" in merge message, and just put MR title into merge subject and MR description into merge description. This way it is more logical with more important information in merge subject and thus e.g. more handy to oversee what a merge brings, just by it subject, e.g. via looking at updates via gitk --first-parent ... or via web. NOTE for pre-generated references to merge-request we now use full MR URL, instead of !<MR-n>. Full URLs work everywhere, not only on original site where MR was created, or even only in original repo and not its fork on the same site.
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