A repository can have a newline in its description due to being in a
directory containing a newline, or due to git-annex describe being
passed a string with a newline in it for some reason. Putting that
newline in uuid.log breaks its format.
So, escape the newline when it enters uuid.log, to \n
This is a one-way escaping, it is not converted back to a newline
when reading the log. If it were, commands like git-annex info and
whereis would display a multi-line description, which could be confusing
to read.
And, implementing roundtripping would necessarily cause problems if an
old version of git-annex were used to set a description that contained
whatever special character is used to escape the \n. Eg, a \ or if
it used the ! prefix before base64 data that is used in some other logs,
the ! character. Then the description set by the old git-annex would not
roundtrip.
There just doesn't seem to be any benefit of roundtripping newlines through,
so why bother? And, git often displays \n for newline when a filename
contains a newline, so git-annex doing it in this case seems sorta ok
by analogy to git.
(Some other git-annex logs can also have newlines put into them if the
user really wants to break git-annex. For example:
git-annex config annex.largefiles "foo
bar"
The full list is probably config.log, remote.log, group.log,
preferred-content.log, required-content.log,
group-preferred-content.log, schedule.log. Probably there is no
good reason to use a newline in any of these, and the breakage is
probably limited to the bad data the user put in not coming back out.
And users can write any garbage to log files themselves manually in any
case. So, I am not going to address all of those at this time. If a
problem such as this one with the newline in the repository path comes
up, it can be dealt with on a case by case basis.)
Sponsored-by: Dartmouth College's Datalad project
git hash-object --stdin-paths is a newline protocol so it cannot
support them. It would help to not use absPath, when the problem
is that the repository itself is in a path with a newline. But,
there's a reason it used absPath, which is that
git hash-object --stdin-paths actually chdirs to the top of the
repository on startup! That is not documented, and I think is a bug
in git.
I considered making the path relative to the top of the repo, but
then what if this is a git bug and gets fixed? git-annex would break
horribly.
So instead, keep the absPath, but when the path contains a newline,
fall back to running git hash-object once per file, which avoids
the problem with newlines and --stdin-paths. It will be slower,
but this is an edge case. (Similar slow code paths are already used
elsewhere when dealing with filenames with newlines and other parts
of git that use line-based protocols.)
Sponsored-by: Dartmouth College's Datalad project
When importing a bunch of feeds, this makes it more clear what it's working
on. Also, I sometimes want to delete a particular feed from a list of feeds
but don't know which url belongs to the feed, and this solves that.
Control characters are filtered out just to protect against some feed
putting escape character stuff in the feed, which could be a
security problem. (Control characters also get filtered out of
importfeed filenames.)
Sponsored-by: Luke Shumaker on Patreon
Added arm64 build for ancient kernels, needed to support Android phones
whose kernels are too old to support kernels used by the current arm64
build.
Updated Android/git-annex-install to use it. (Also made it use i386-ancient
because that seems like a good idea.)
Sponsored-by: Noam Kremen on Patreon
sync: Fix a reversion that prevented sending files to exporttree=yes
remotes when annex-tracking-branch was configured to branch:subdir
(Introduced in version 10.20230214)
Sponsored-by: Kevin Mueller on Patreon
