MaintNotes: post 1.6.6
Junio C Hamano committed
Dec 31, 2009 at 16:01 UTC
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MaintNotes
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-Welcome to git community.
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+Welcome to git development community.
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-This message talks about how git.git is managed, and how you can work
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-with it.
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+This message is written by the maintainer and talks about how Git
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+project is managed, and how you can work with it.
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* IRC and Mailing list
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-Many active members of development community hang around on #git
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+Members of the development community can sometimes be found on #git
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IRC channel on Freenode. Its log is available at:
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http://colabti.org/irclogger/irclogger_log/git
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-The development however is primarily done on the git mailing list
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-(git@vger.kernel.org). If you have patches, please send them to the
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-list, following Documentation/SubmittingPatches.
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-
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-I usually try to read all patches posted to the list, and follow
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-almost all the discussions on the list, unless the topic is about an
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-obscure corner that I do not personally use. But I am obviously not
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-perfect. If you sent a patch that you did not hear from anybody for
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-three days, that is a very good indication that it was dropped on the
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-floor --- please do not hesitate to remind me.
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+The development is primarily done on the Git mailing list If you have
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+patches, please send them to the list address (git@vger.kernel.org).
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+following Documentation/SubmittingPatches. You don't have to be
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+subscribed to send messages there, and the convention is to Cc:
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+everybody involved, so you don't even have to say "Please Cc: me, I am
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+not subscribed".
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+
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+If you sent a patch and you did not hear any response from anybody for
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+several days, it could be that your patch was totally uninteresting, but
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+it also is possible that it was simply lost in the noise. Please do not
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+hesitate to send a reminder message politely in such a case. Messages
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+getting lost in the noise is a sign that people involved don't have enough
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+mental/time bandwidth to process them right at the moment, and it often
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+helps to wait until the list traffic becomes calmer before sending such a
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+reminder.
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The list archive is available at a few public sites as well:
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@@ -58,137 +63,129 @@ Their gitweb interfaces are found at:
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http://repo.or.cz/w/alt-git.git
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There are three branches in git.git repository that are not about the
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-source tree of git: "todo", "html" and "man". The first one was meant
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-to contain TODO list for me, but I am not good at maintaining such a
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-list and it is in an abandoned state. The branch mostly is used to
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-keep some helper scripts I use to maintain git and the regular "What's
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-in/cooking" messages these days.
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+source tree of git: "todo", "html" and "man". The first one was meant to
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+contain TODO list for me, but I am not good at maintaining such a list and
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+it is in an abandoned state. The branch mostly is used to keep some
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+helper scripts I use to maintain git and the regular "What's cooking"
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+messages these days.
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-The "html" and "man" are autogenerated documentation from the
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-tip of the "master" branch; the tip of "html" is extracted to be
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-visible at kernel.org at:
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+The "html" and "man" are autogenerated documentation from the tip of the
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+"master" branch; the tip of "html" is extracted to be visible at
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+kernel.org at:
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http://www.kernel.org/pub/software/scm/git/docs/
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The above URL is the top-level documentation page, and it has
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links to documentation of older releases.
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-The script to maintain these two documentation branches are
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-found in "todo" branch as dodoc.sh, if you are interested. It
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-is a good demonstration of how to use a post-update hook to
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-automate a task.
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-
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-There are four branches in git.git repository that track the
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-source tree of git: "master", "maint", "next", and "pu". I may
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-add more maintenance branches (e.g. "maint-1.6.3") if we have
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-hugely backward incompatible feature updates in the future to keep
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-an older release alive; I may not, but the distributed nature of
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-git means any volunteer can run a stable-tree like that herself.
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-
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-The "master" branch is meant to contain what are very well
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-tested and ready to be used in a production setting. There
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-could occasionally be minor breakages or brown paper bag bugs
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-but they are not expected to be anything major, and more
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-importantly quickly and trivially fixable. Every now and
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-then, a "feature release" is cut from the tip of this branch and
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-they typically are named with three dotted decimal digits. The
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-last such release was 1.6.4 done on Jul 29th 2009. You
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-can expect that the tip of the "master" branch is always more
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-stable than any of the released versions.
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-
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-Whenever a feature release is made, "maint" branch is forked off
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-from "master" at that point. Obvious, safe and urgent fixes
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-after a feature release are applied to this branch and
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-maintenance releases are cut from it. The maintenance releases
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-are named with four dotted decimal, named after the feature
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-release they are updates to; the last such release was 1.6.4.1.
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-New features never go to this branch. This branch is also
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+The script to maintain these two documentation branches are found in the
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+"todo" branch as dodoc.sh, if you are interested. It is a demonstration
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+of how to use a post-update hook to automate a task after pushing into a
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+repository.
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+
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+There are four branches in git.git repository that track the source tree
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+of git: "master", "maint", "next", and "pu". I may add more maintenance
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+branches (e.g. "maint-1.6.3") if we have hugely backward incompatible
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+feature updates in the future to keep an older release alive; I may not,
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+but the distributed nature of git means any volunteer can run a
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+stable-tree like that herself.
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+
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+The "master" branch is meant to contain what are very well tested and
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+ready to be used in a production setting. There could occasionally be
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+minor breakages or brown paper bag bugs but they are not expected to be
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+anything major, and more importantly quickly and trivially fixable. Every
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+now and then, a "feature release" is cut from the tip of this branch and
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+they typically are named with three dotted decimal digits. The last such
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+release was 1.6.6 done on Dec 23rd 2009. You can expect that the tip of
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+the "master" branch is always more stable than any of the released
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+versions.
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+
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+Whenever a feature release is made, "maint" branch is forked off from
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+"master" at that point. Obvious, safe and urgent fixes after a feature
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+release are applied to this branch and maintenance releases are cut from
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+it. The maintenance releases are named with four dotted decimal, named
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+after the feature release they are updates to; the last such release was
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+1.6.5.7. New features never go to this branch. This branch is also
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merged into "master" to propagate the fixes forward.
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-A trivial and safe enhancement goes directly on top of "master".
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-A new development, either initiated by myself or more often by
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-somebody who found his or her own itch to scratch, does not
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-usually happen on "master", however. Instead, a separate topic
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-branch is forked from the tip of "master", and it first is
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-tested in isolation; I may make minimum fixups at this point.
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-Usually there are a handful such topic branches that are running
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-ahead of "master" in git.git repository. I do not publish the
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-tip of these branches in my public repository, however, partly
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-to keep the number of branches that downstream developers need
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-to worry about low, and primarily because I am lazy.
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+A trivial and safe enhancement goes directly on top of "master". A new
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+development, either initiated by myself or more often by somebody who
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+found his or her own itch to scratch, does not usually happen on "master",
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+however. Instead, a separate topic branch is forked from the tip of
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+"master", and it first is tested in isolation; I may make minimum fixups
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+at this point. Usually there are a handful such topic branches that are
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+running ahead of "master" in git.git repository. I do not publish the tip
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+of these branches in my public repository, however, partly to keep the
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+number of branches that downstream developers need to worry about low, and
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+primarily because I am lazy.
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The quality of topic branches are judged primarily by the mailing list
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-discussions. Some of them start out as "good idea but obviously is
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-broken in some areas (e.g. breaks the existing testsuite)" and then
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-with some more work (either by the original contributor's effort or
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-help from other people on the list) becomes "more or less done and can
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-now be tested by wider audience". Luckily, most of them start out in
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-the latter, better shape.
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-
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-The "next" branch is to merge and test topic branches in the
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-latter category. In general, the branch always contains the tip
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-of "master". It might not be quite rock-solid production ready,
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-but is expected to work more or less without major breakage. I
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-usually use "next" version of git for my own work, so it cannot
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-be _that_ broken to prevent me from pushing the changes out.
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-The "next" branch is where new and exciting things take place.
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-
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-The two branches "master" and "maint" are never rewound, and
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-"next" usually will not be either (this automatically means the
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-topics that have been merged into "next" are usually not
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-rebased, and you can find the tip of topic branches you are
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-interested in from the output of "git log next"). You should be
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-able to safely track them.
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-
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-After a feature release is made from "master", however, "next"
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-will be rebuilt from the tip of "master" using the surviving
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-topics. The commit that replaces the tip of the "next" will
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-usually have the identical tree, but it will have different ancestry
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-from the tip of "master". An announcement will be made to warn
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-people about such a rebasing.
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-
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-The "pu" (proposed updates) branch bundles all the remainder of
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-topic branches. The "pu" branch, and topic branches that are
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-only in "pu", are subject to rebasing in general. By the above
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-definition of how "next" works, you can tell that this branch
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-will contain quite experimental and obviously broken stuff.
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-
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-When a topic that was in "pu" proves to be in testable shape, it
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-graduates to "next". I do this with:
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+discussions. Some of them start out as "good idea but obviously is broken
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+in some areas (e.g. breaks the existing testsuite)" and then with some
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+more work (either by the original contributor's effort or help from other
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+people on the list) becomes "more or less done and can now be tested by
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+wider audience". Luckily, most of them start out in the latter, better
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+shape.
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+
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+The "next" branch is to merge and test topic branches in the latter
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+category. In general, the branch always contains the tip of "master". It
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+might not be quite rock-solid production ready, but is expected to work
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+more or less without major breakage. I usually use "next" version of git
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+for my own work, so it cannot be _that_ broken to prevent me from
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+integrating and pushing the changes out. The "next" branch is where new
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+and exciting things take place.
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+
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+The two branches "master" and "maint" are never rewound, and "next"
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+usually will not be either (this automatically means the topics that have
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+been merged into "next" are usually not rebased, and you can find the tip
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+of topic branches you are interested in from the output of "git log
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+next"). You should be able to safely build on top of them.
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+
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+After a feature release is made from "master", however, "next" will be
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+rebuilt from the tip of "master" using the surviving topics. The commit
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+that replaces the tip of the "next" will usually have the identical tree,
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+but it will have different ancestry from the tip of "master".
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+
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+The "pu" (proposed updates) branch bundles all the remainder of topic
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+branches. The "pu" branch, and topic branches that are only in "pu", are
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+subject to rebasing in general. By the above definition of how "next"
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+works, you can tell that this branch will contain quite experimental and
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+obviously broken stuff.
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+
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+When a topic that was in "pu" proves to be in testable shape, it graduates
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+to "next". I do this with:
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git checkout next
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git merge that-topic-branch
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-Sometimes, an idea that looked promising turns out to be not so
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-good and the topic can be dropped from "pu" in such a case.
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+Sometimes, an idea that looked promising turns out to be not so good and
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+the topic can be dropped from "pu" in such a case.
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-A topic that is in "next" is expected to be tweaked and fixed to
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-perfection before it is merged to "master" (that's why "master"
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-can be expected to stay very stable). Similarly to the above, I
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-do it with this:
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+A topic that is in "next" is expected to be polished to perfection before
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+it is merged to "master" (that's why "master" can be expected to stay more
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+stable than any released version). Similarly to the above, I do it with
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+this:
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git checkout master
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git merge that-topic-branch
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git branch -d that-topic-branch
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-Note that being in "next" is not a guarantee to appear in the
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-next release (being in "master" is such a guarantee, unless it
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-is later found seriously broken and reverted), nor even in any
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-future release. There even were cases that topics needed
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-reverting a few commits in them before graduating to "master",
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-or a topic that already was in "next" were entirely reverted
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+Note that being in "next" is not a guarantee to appear in the next release
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+(being in "master" is such a guarantee, unless it is later found seriously
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+broken and reverted), nor even in any future release. There even were
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+cases that topics needed reverting a few commits in them before graduating
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+to "master", or a topic that already was in "next" were entirely reverted
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from "next" because fatal flaws were found in them later.
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* Other people's trees, trusted lieutenants and credits.
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-Documentation/SubmittingPatches outlines to whom your proposed
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-changes should be sent. As described in contrib/README, I would
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-delegate fixes and enhancements in contrib/ area to the primary
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-contributors of them.
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+Documentation/SubmittingPatches outlines to whom your proposed changes
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+should be sent. As described in contrib/README, I would delegate fixes
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+and enhancements in contrib/ area to the primary contributors of them.
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-Although the following are included in git.git repository, they
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-have their own authoritative repository and maintainers:
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+Although the following are included in git.git repository, they have their
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+own authoritative repository and maintainers:
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- git-gui/ comes from Shawn Pearce's git-gui project:
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@@ -198,16 +195,15 @@ have their own authoritative repository and maintainers:
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git://git.kernel.org/pub/scm/gitk/gitk.git
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-I would like to thank everybody who helped to raise git into the
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-current shape. Especially I would like to thank the git list
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-regulars whose help I have relied on and expect to continue
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-relying on heavily:
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+I would like to thank everybody who helped to raise git into the current
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+shape. Especially I would like to thank the git list regulars whose help
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+I have relied on and expect to continue relying on heavily:
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- Linus on general design issues.
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- - Linus, Shawn Pearce, Johannes Schindelin, Nicolas Pitre,
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- René Scharfe, Jeff King and Johannes Sixt on general
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- implementation issues.
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+ - Linus, Shawn Pearce, Johannes Schindelin, Nicolas Pitre, René
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+ Scharfe, Jeff King and Johannes Sixt on general implementation
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+ issues.
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- Shawn and Nicolas Pitre on pack issues.
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@@ -219,8 +215,8 @@ relying on heavily:
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- Simon Hausmann on git-p4.
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- - Jakub Narebski, Petr Baudis, Luben Tuikov, Giuseppe Bilotta
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- on gitweb.
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+ - Jakub Narebski, Petr Baudis, Luben Tuikov, Giuseppe Bilotta on
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+ gitweb.
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- J. Bruce Fields on documentation (and countless others for
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proofreading and fixing).
@@ -232,13 +228,13 @@ relying on heavily:
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- David Aguilar for git-difftool.
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- - Johannes Schindelin, Johannes Sixt and others for their effort
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- to move things forward on the Windows front.
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+ - Johannes Schindelin, Johannes Sixt and others for their effort to
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+ move things forward on the Windows front.
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- People on non-Linux platforms for keeping their eyes on
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- portability; especially, Randal Schwartz, Theodore Ts'o,
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- Jason Riedy, Thomas Glanzmann, Brandon Casey, Jeff King,
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- Alex Riesen and countless others.
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+ portability; especially, Randal Schwartz, Theodore Ts'o, Jason
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+ Riedy, Thomas Glanzmann, Brandon Casey, Jeff King, Alex Riesen and
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+ countless others.
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* This document
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