Detect when a preferred content expression contains "not present", which
would lead to repeatedly getting and then dropping files, and make it never
match. This also applies to "not balanced" and "not sizebalanced".
--explain will tell the user when this happens
Note that getMatcher calls matchMrun' and does not check for unstable
negated limits. While there is no --present anyway, if there was,
it would not make sense for --not --present to complain about
instability and fail to match.
When the specified number of copies is > 1, and some repositories are
too full, it can be better to move content from them to other less full
repositories, in order to make space for new content.
annex.fullybalancedthreshhold is documented, but not implemented yet
This is not tested very well yet, and is known to sometimes take several
runs to stabalize.
Might want to make --rebalance turn balanced=group:N where N > 1
to fullysizebalanced=group:N. Have not yet determined if that will
improve situations enough to be worth the extra work.
This all works fine. But it doesn't check repository sizes yet, and
without repository size checking, once a repository gets full, there
will be no other repository that will want its files.
Use of sha2 seems unncessary, probably alder2 or md5 or crc would have
been enough. Possibly just summing up the bytes of the key mod the number
of repositories would have sufficed. But sha2 is there, and probably
hardware accellerated. I doubt very much there is any security benefit
to using it though. If someone wants to construct a key that will be
balanced onto a given repository, sha2 is certianly not going to stop
them.
POSIX character classes allowed in globs was a surprise, but just
happened to fall out of the implementation in a way that seems
to behave correctly.
mdwn2man has to be tweaked to render the example properly.
The line I modified is the one that strips ikiwiki wikilinks out of the
man page.
Sponsored-by: Graham Spencer on Patreon
I noticed that, using just the man pages, there is no real description
of what backends are, or what ones are available. Except for some
examples.
Added a git-annex-backends man page, that is just a stub, but at least
describes what they basically are, and tells how to find the supported
ons, and links to the backends web page.
Sponsored-by: Brett Eisenberg on Patreon
Importing from a special remote honors its preferred content too; unwanted
files are not imported. But, some preferred content expressions can't be
checked before files are imported, and trying to import with such an
expression will fail.
Tested this with scenarios including changing the preferred content
expression and making sure merging the import didn't delete files that were
no longer wanted.
There was one minor inefficiency mentioned in the todo that I punted on.
This includes a note about how include= and exclude= match when exporting
a subtree. I don't know if the note is prominent enough, but the
behavior seems unsurprising enough.
When a repo is in multiple standard groups,
Logs.PreferredContent.makeMatcher uses unknownMatcher,
so will not get everything, but instead defaults to wanting whatever is
present.
Added --securehash option to match files using a secure hash function, and
corresponding securehash preferred content expression.
This commit was sponsored by Ethan Aubin.
