2018-10-31 12:31:07 +00:00
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Tracking v7 progress toward becoming the default.
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## step 1: release
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done
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2019-08-26 16:53:56 +00:00
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## step 2: default for new repositories that used to use direct mode
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2018-10-31 12:31:07 +00:00
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2019-08-26 18:52:55 +00:00
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done
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2018-10-31 12:31:07 +00:00
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## step 3: auto-upgrade from direct mode
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Direct mode is very buggy and limited, so it's easy for v7 (with adjusted
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unlocked branches) to be better than it.
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2019-02-20 15:28:00 +00:00
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Note that direct mode repos with old git-annex interoperate with adjusted
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unlocked repos with new git-annex, so there is no need to wait for v7 to be
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widely supported.
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2019-08-26 16:29:43 +00:00
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One problem with this is that direct mode stores only a single copy
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of a file, but v7 unlocked with annex.thin needs two copies if hard links
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are not supported. So some users will experience the repo doubling in size.
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Limited mostly to windows, also some FAT media. This seems difficult
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to avoid though, see discussion in
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<http://git-annex.branchable.com/todo/annex.thin_without_hardlinks/>
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2019-08-26 18:52:55 +00:00
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done
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2019-02-20 15:28:00 +00:00
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## step 4: default for all new repositories
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2019-08-26 16:29:43 +00:00
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Could probably happen fairly soon after switch of direct mode.
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2019-02-20 15:28:00 +00:00
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This is entirely new repositories that git-annex init is run in for the
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2019-08-26 16:29:43 +00:00
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first time (no sibling git-annex branches). Limiting to new repos
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avoids the problems discussed in step 5.
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2018-10-31 12:31:07 +00:00
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2019-02-20 15:28:00 +00:00
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## step 5: automatic v5 to v7 upgrades
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2018-10-31 12:31:07 +00:00
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Since v5 repos and v7 repos not using unlocked files are functionally
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almost identical, this is unlikely to break much. Unlocking files will of
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course change behavior though.
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2019-08-27 18:14:16 +00:00
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The only significant difference is that Annex.Content in v7
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reads and writes to the keys database. So any problem with the database
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code would prevent using git-annex. On Windows, sqlite does not currently
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work in WSL. http://git-annex.branchable.com/bugs/WSL_adjusted_braches__58___smudge_fails_with_sqlite_thread_crashed_-_locking_protocol/
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So this would make git-annex maybe not work on WSL until that's fixed.
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A concern is that a v5 repository may be used by multiple machines,
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some not supporting v7 and some that do. If one upgrades to v7
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2019-02-20 15:28:00 +00:00
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and starts using unlocked files, those files won't be accessible on the old
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v5 machines.
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2018-10-31 12:31:07 +00:00
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2019-08-26 16:29:43 +00:00
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> v7 is in debian stable now; oldstable (stretch) has v7 available
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> as a backport but not by default, and will remain supported
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> until 2022.
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>
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> But workflows involving unlocking and re-locking that work on v5 will
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> also work on v7 and keep the repo compatible with v5. Only if some
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> users commit unlocked files is v5 compatability lost, and even then
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> it's easy to re-lock the file to fix compatabilityagain. So the risk
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> of a too early upgrade to v7 is not very big.
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Note that [[sqlite_database_improvements]] seems to need a v8 mode,
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and so is blocked on v5 auto-upgrading.
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2019-08-27 18:14:16 +00:00
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## step 6: remove support for v5
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2018-10-31 12:31:07 +00:00
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2019-08-26 16:29:43 +00:00
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This won't simplify much code, worth doing eventually. Once automatic v5 to
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v7 upgrades happen, the remaining v5 specific code is not needed any
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longer.
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