(And v9 later on to v10.)
When v9/v10 were added, making v8 automatically upgrade was deferred
"for a few months" to prevent interoperability problems if users also
have an old version of git-annex. Of course that could still be the
case, but there has been a good amount of time and this can't be put off
forever.
Allow setting annex.autoupgraderepository to false to avoid this upgrade.
Previously, that only prevented upgrades from no longer supported git-annex
versions, but v8 is still supported, and users may want to keep on v8 to
interoperate with an old git-annex version.
Sponsored-by: Boyd Stephen Smith Jr. on Patreon
autoUpgradeableVersions had latestVersion (10), but it did not make
sense for asking for old version 6 to get version 10, while asking for
version 8 got version 8. So use defaultVersion (8) instead.
Sponsored-by: Dartmouth College's Datalad project
This has tradeoffs, but is generally a win, and users who it causes git add to
slow down unacceptably for can just disable it again.
It needed to happen in an upgrade, since there are git-annex versions
that do not support it, and using such an old version with a v8
repository with filter.annex.process set will cause bad behavior.
By enabling it in v9, it's guaranteed that any git-annex version that
can use the repository does support it. Although, this is not a perfect
protection against problems, since an old git-annex version, if it's
used with a v9 repository, will cause git add to try to run
git-annex filter-process, which will fail. But at least, the user is
unlikely to have an old git-annex in path if they are using a v9
repository, since it won't work in that repository.
Sponsored-by: Dartmouth College's Datalad project
Since it's easy to keep supporting v8, using it for a while (eg a few
months) will give users time to upgrade git-annex installations, before
it upgrades their repository to v9.
This commit should be reverted once ready to start upgrading
repositories by default.
Sponsored-by: Dartmouth College's Datalad project
v10 will run 1 year after the upgrade to v9, to give time for any v8
processes to die. Until that point, the v10 upgrade will be tried by
every process but deferred, so added support for deferring upgrades.
The upgrade prevention lock file that will be used by v10 is not yet
implemented, so it does not yet defer.
Sponsored-by: Dartmouth College's Datalad project
v9 will not need to write to annex content files in order to lock them,
so freezeContent removes the write bit in a shared repository, the same
as in any other repository.
checkContentWritePerm makes sure that the write perm is not set, which
will let git-annex fsck fix up the permissions. Upgrading to v9
will need to fix the permissions as well, but it seems likely there will
be situations where the user git-annex is running an upgrade as cannot,
so it will have to leave the write bit set. In such a case, git-annex
fsck can fix it later.
Sponsored-by: Dartmouth College's Datalad project
This is the start of v9, but it's currently identical to v8, and v8 is
not upgraded to it. git-annex upgrade will upgrade to v9 with this
change.
Sponsored-by: Dartmouth College's Datalad project
* init --version: When the version given is one that automatically
upgrades to a newer version, use the newer version instead.
* Auto upgrades from older repo versions, like v5, now jump right to v8.
Since the sqlite branch uses blobs extensively, there are some
performance benefits, ByteStrings now get stored and retrieved w/o
conversion in some cases like in Database.Export.
The parser and looking up config keys in the map should both be faster
due to using ByteString.
I had hoped this would speed up startup time, but any improvement to
that was too small to measure. Seems worth keeping though.
Note that the parser breaks up the ByteString, but a config map ends up
pointing to the config as read, which is retained in memory until every
value from it is no longer used. This can change memory usage
patterns marginally, but won't affect git-annex.
Renamed the database to .git/annex/keysdb;
the old .git/annex/keys gets deleted during the upgrade.
It is possible that an old git-annex process is running during the
upgrade. If so, it will be able to continue using the old keys db until the
upgrade is complete, and then will presumably fail in some ugly way. Or
perhaps the upgrade will be unable to delete the open files on some
systems, and so fail with an ugly error message.
It's also possible for multiple processes to be running the upgrade
concurrently. That should be fine; they will both write the same
information into the keys db.
Other databases still need to be upgraded.
Rather than direct mode, which this is a small step on the path to
removing.
Init on a crippled filesystem already used v7 adjusted branches,
and like that, this doesn't pose any interoperability issues with old
versions of git-annex that clone the same repo, because files are only
unlocked on the adjusted branch.
* init: When a crippled filesystem causes an adjusted unlocked branch to
be used, set repo version to 7, which it neglected to do before.
* init: When on a crippled filesystem, and the git version is too old
to use an adjusted unlocked branch, fall back to using direct mode.
This commit was sponsored by Ilya Shlyakhter on Patreon.
It's auto-upgraded to 5, so does not need to be listed there.
Let's keep supportedVersions for versions that git-annex will actually
use without autoupgrading or demanding an upgrade.
Install new git hooks in this version.
This does beg the question of what to do if git later gets eg a
post-smudge hook, that could run git-annex smudge --update. I think the
thing to do in that case would be to make git-annex smudge --update
install the new hooks. That way, as the user uses git-annex, the hook
would be created pretty quickly and without needing any extra syscalls
except for when git-annex smudge --update is called.
I considered doing something like that for installation of the
post-checkout and post-merge hooks, which would have avoided the need
for v7. But the only place it was cheap to do it would be in git-annex smudge
which could cheaply notice that smudge.log didn't exist yet and so know
the hooks needed to be installed. But since smudge used to populate pointer
files, it would be quite surprising if a single git checkout/merge failed
to update the work tree, and so that idea didn't work out.
The other reason for v7 is psychological -- users don't need to worry
about whether they might be running an old version of git-annex that
doesn't support their v7 repository very well. And bug reports about
"v6" have gotten a bit of a bad association in my head since they often
hit one of the known limitations and didn't realize it was experimental.
newtyped RepoVersion Int to avoid needing 2 comparisons in
versionSupportsUnlockedPointers etc. Also it's just nicer.
This commit was sponsored by John Pellman on Patreon.
An easy change now that supportedVersions is a list. Since v3 and v5 are
identical other than version number, just add v3 to the list.
This commit was sponsored by andrea rota.
Fixes a bug introduced with v6 mode that I didn't notice until now.
Probably not many v3 repos left out there, and upgrading them to v6 mode
is not disastrous, only a little premature.
This commit was sponsored by Riku Voipio
Since all places where a repo is used in direct mode need to have git-annex
upgraded before the repo can safely be converted to v6, the upgrade needs
to be manual for now.
I suppose that at some point I'll want to drop all the direct mode support
code. At that point, will stop supporting v5, and will need to auto-upgrade
any remaining v5 repos. If possible, I'd like to carry the direct mode
support for say, a year or so, to give people plenty of time to upgrade and
avoid disruption.
annex.ssh-options, annex.rsync-options, annex.bup-split-options.
And adjust types to avoid the bugs that broke several config settings
recently. Now "annex." prefixing is enforced at the type level.
Many functions took the repo as their first parameter. Changing it
consistently to be the last parameter allows doing some useful things with
currying, that reduce boilerplate.
In particular, g <- gitRepo is almost never needed now, instead
use inRepo to run an IO action in the repo, and fromRepo to get
a value from the repo.
This also provides more opportunities to use monadic and applicative
combinators.
