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Windows: Fix reversion that caused the path used to link to annexed
content include the drive letter and full path, rather than being
relative. (`git annex fix` will fix up after this problem).
I've not identified the commit that brought the reversion (probably it
happened this spring when I was removing MisingH and last touched
Utility.Path). Likely commit c88dfda7e03cab4d96417518b6cfcffd54ad8f5d?
The problem is that relPathDirToFile got called two paths that had the
slashes different ways around. Since takeDrive includes the first slash,
this made two paths on the same drive seem different and it bailed.
(ifdefs around this to avoid doing extra work on non-windows)
This commit was sponsored by Jack Hill on Patreon.
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Thanks, Sean T Parsons
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Thanks, Sean T Parsons
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Get ugly reversion out of CHANGELOG.
Also, relocated the windows stack.yaml to top, and updated windows build
instructions.
This commit was sponsored by Henrik Riomar on Patreon.
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and git for windows includes curl which git-annex will use instead.
wget was broken even in the previous old release of the windows bundle,
this is not new breakage. msys-idn-11.dll and probably more would be needed
to use it. git for windows includes msys-idn2-0.dll instead.
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Code for terminating processes on Windows is not linking anymore;
made a warning be displayed instead. This breaks restarting the
assistant and git annex assistant --stop.
I hope to see the code added to the Win32 library, where it should fit
better and should avoid whatever problem is making the linker not like it
when included in git-annex. I opened an issue requesting its addition,
here: https://github.com/haskell/win32/issues/91
This commit was sponsored by Thomas Hochstein on Patreon.
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This avoids all the complication about redundant work discussed in
the previous try at fixing this. At the expense of needing each command
that could have the problem to be patched to simply wrap the action in
onlyActionOn once the key is known. But there do not seem to be many
such commands.
onlyActionOn' should not be used with a CommandStart (or CommandPerform),
although the types do allow it. onlyActionOn handles running the whole
CommandStart chain. I couldn't immediately see a way to avoid mistken
use of onlyActionOn'.
This commit was supported by the NSF-funded DataLad project.
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After a false start, I found a fairly non-intrusive way to deal with it.
Although it only handles transfers -- there may be issues with eg
concurrent dropping of the same key, or other operations.
There is no added overhead when -J is not used, other than an added
inAnnex check. When -J is used, it has to maintain and check a small
Set, which should be negligible overhead.
It could output some message saying that the transfer is being done by
another thread. Or it could even display the same progress info for both
files that are being downloaded since they have the same content. But I
opted to keep it simple, since this is rather an edge case, so it just
doesn't say anything about the transfer of the file until the other
thread finishes.
Since the deferred transfer action still runs, actions that do more than
transfer content will still get a chance to do their other work. (An
example of something that needs to do such other work is P2P.Annex,
where the download always needs to receive the content from the peer.)
And, if the first thread fails to complete a transfer, the second thread
can resume it.
But, this unfortunately means that there's a risk of redundant work
being done to transfer a key that just got transferred.
That's not ideal, but should never cause breakage; the same
thing can occur when running two separate git-annex processes.
The get/move/copy/mirror --from commands had extra inAnnex checks added,
inside the download actions. Without those checks, the first thread
downloaded the content, and then the second thread woke up and
downloaded the same content redundantly.
move/copy/mirror --to is left doing redundant uploads for now. It
would need a second checkPresent of the remote inside the upload
to avoid them, which would be expensive. A better way to avoid
redundant work needs to be found..
This commit was supported by the NSF-funded DataLad project.
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git annex add, git annex lock etc make multiple seek passes,
and each seek pass checked that files existed. That was unncessary
redundant work.
Fixed by adding a new WorkTreeItem type, make seek actions use it,
and check that the files exist when constructing it.
This commit was supported by the NSF-funded DataLad project.
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Before, there was a window where interrupting an add could result in the
file being moved into the annex, with no symlink yet created.
This commit was supported by the NSF-funded DataLad project.
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when storing files there, since that collection is created by initremote.
(This seems to work around some brokenness of the box.com webdav server
which was entering a redirect loop.)
Note that the fix makes locationParent return Nothing instead of "."
when there's no parent directory between the path and the top of the webdav
repo.
This commit was sponsored by André Pereira on Patreon.
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This commit was sponsored by Denis Dzyubenko on Patreon.
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In my git-annex repos, I found some stale transfer info files
without lock files.
Pass a mode to tryLockExclusive, so it will create the lock file if
not present, and so not fail to clean up such transfer info files.
Normally, transfer info files are accompanied by a lock file.
But, when alwaysRunTransfer is used, the locking can fail
and it will still write the transfer info file. Perhaps there are other
cases too? Note that mkProgressUpdater's meter
writes to the transfer info file too, and it might be possible for
that meter to fire after runTransfer has cleaned up.
This commit was sponsored by andrea rota.
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Fix process and file descriptor leak that was exposed when git-annex was
built with ghc 8.2.1. Apparently ghc has changed its behavior of GC
of open file handles that are pipes to running processes. That
broke git-annex test on OSX due to running out of FDs.
Audited for all uses of Annex.new and made stopCoProcesses be called
once it's done with the state. Fixed several places that might have
leaked in other situations than running the test suite.
This commit was sponsored by Ewen McNeill.
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local disk as when sending to other remotes.
Let --fast override use of hasKey even when hasKeyCheap.
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Using annexeval to run probeCrippledFileSystem' caused Git.CurrentRepo.get
to be run. Fixed easily since probeCrippledFileSystem' had no need to use
the Annex monad.
This commit was sponsored by Ethan Aubin.
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When the external special remote program crashed, a newline
could be output, which messed up the expected output for --batch mode.
Avoid checking EXPORTSUPPORTED for special remotes that are
not configured to use exports. The datalad special remote apparently is/was
buggy and crashed on EXPORTSUPPORTED. Anyway, there's no need to send
it when the configuration doesn't need it.
This commit was supported by the NSF-funded DataLad project.
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Also deletes any tagged pushes that the assistant might have done,
since those would also prevent resetting a branch back.
This commit was sponsored by andrea rota.
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to avoid the user being surprised in cases where that behavior is not desired or expected
This commit was supported by the NSF-funded DataLad project.
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Motivation is to remove all metadata when it gets copied from a previous
version of the file, and that is not deisrable.
This commit was supported by the NSF-funded DataLad project.
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method and path.
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This is similar to the pusher thread, but a separate thread because git
pushes can be done in parallel with exports, and updating a big export
should not prevent other git pushes going out in the meantime.
The exportThread only runs at most every 30 seconds, since updating an
export is more expensive than pushing. This may need to be tuned.
Added a separate channel for export commits; the committer records a
commit in that channel.
Also, reconnectRemotes records a dummy commit, to make the exporter
thread wake up and make sure all exports are up-to-date. So,
connecting a drive with a directory special remote export will
immediately update it, and getting online will automatically
update S3 and WebDAV exports.
The transfer queue is not involved in exports. Instead, failed
exports are retried much like failed pushes.
This commit was sponsored by Ewen McNeill.
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Done to avoid a "tmp" directory appearing in webdav exports.
Also affects non-export webdav remotes, so interrupted uploads using the
old path will not overwrite it. However, PUT is quite likely to be
implemented atomically on web servers anyway, so I doubt this will cause
problems.
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inDAVLocation does not url-escape, and so exporting a filename with spaces
to box.com at least resulted in a error 400.
It might also have affected storing keys on a webdav remote, if the key
contained a space or other problem character. Pretty unlikely.
I emailed Clint about the inDAVLocation gotcha, but seems best to fix it
here.
This commit was supported by the NSF-funded DataLad project.
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webdav: Checking if a non-existent file is present on Box.com triggered a
bug in its webdav support that generates an infinite series of redirects.
It seems to redirect foo to foo/ to foo/index.php to
foo/index.php/index.php ... Why a webdav endpoint would behave this way
who knows.
Deal with such problems by assuming such behavior means the file is not
present.
Can't simply disable following redirects, because the webdav endpoint could
legitimately be redirected to a new endpoint. So, when this happens
10 redirects have to be followed, before it gives up and assumes this means
the file does not exist.
This commit was supported by the NSF-funded DataLad project.
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This basically works, but there's a bug when renaming a file that leaves
a .git-annex-temp-content-key file in the webdav store, that never gets
cleaned up.
Also, exporting files with spaces to box.com seems to fail; perhaps it
does not support it?
This commit was supported by the NSF-funded DataLad project.
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In a test, I uploaded a pdf, and several files were derived from it.
After removing the pdf, the derived files went away after approximatly
half an hour. This window does not seem worth warning about every time.
Documented it in the tip.
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potentially still existing there.
Removal works, only derives are a potential issue, so allow removing
with a warning. This way, unexporting a file works, and behavior is
consistent with IA remotes whether or not exporttree=yes.
Also tested exporting filenames containing unicode, spaces, underscores.
All worked, despite the IA's faq saying it doesn't.
This commit was sponsored by Trenton Cronholm on Patreon.
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It opens a http connection per file exported, but then so does git
annex copy --to s3.
Decided not to munge exported filenames for IA. Too large a chance of
the munging having confusing results. Instead, export of files not
supported by IA, eg with spaces in their name, will fail.
This commit was supported by the NSF-funded DataLad project.
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Also updated example.sh to support export.
This commit was supported by the NSF-funded DataLad project.
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writing to files whose write bit is not set.
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This commit was sponsored by Jeff Goeke-Smith on Patreon.
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https://github.com/haskell/cabal/issues/4655
This means that when a module is conditionally imported via ifdef
depending on the OS or build flags, the cabal file has to mirror the
same logic there to only list the module then.
Since there are lots of OS's and lots of combinations of build flags
here, it's rather difficult to know if the cabal file has been completelty
correctly updated to match the source code.
So I am very unhappy with needing to update things in two places. I've
only tested this on linux with most build flags enables; this will
probably need significant time and testing to catch every cabal file
tweak that this change to Cabal requires. And it will be a continual
source of compile failures going forward when the code is modified and
the cabal file not also updated.
DRY DRY DRY, I repeat myself, but: DRY! Sigh..
(Also, had to remove all Build.* that are standalone programs from the
Other-Modules list, because since cabal passes those modules to ghc when
building git-annex, it complains that they use module Main. Those
modules are only used when building with the Makefile anyway, so this
change shouldn't break anything.)
This commit was sponsored by Thomas Hochstein on Patreon.
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Security fix: Disallow hostname starting with a dash, which would get
passed to ssh and be treated an option. This could be used by an attacker
who provides a crafted ssh url (for eg a git remote) to execute arbitrary
code via ssh -oProxyCommand.
No CVE has yet been assigned for this hole.
The same class of security hole recently affected git itself,
CVE-2017-1000117.
Method: Identified all places where ssh is run, by git grep '"ssh"'
Converted them all to use a SshHost, if they did not already, for
specifying the hostname.
SshHost was made a data type with a smart constructor, which rejects
hostnames starting with '-'.
Note that git-annex already contains extensive use of Utility.SafeCommand,
which fixes a similar class of problem where a filename starting with a
dash gets passed to a program which treats it as an option.
This commit was sponsored by Jochen Bartl on Patreon.
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Fix the external special remotes git-annex-remote-ipfs,
git-annex-remote-torrent and the example.sh template to correctly support
filenames with spaces.
This commit was sponsored by John Peloquin on Patreon.
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External special remotes will refuse to operate on keys with spaces in
their names. That has never worked correctly due to the design of the
external special remote protocol. Display an error message suggesting
migration.
Not super happy with this, but it's a pragmatic solution. Better than
complicating the external special remote interface and all external special
remotes.
Note that I only made it use SafeKey in Request, not Response. git-annex
does not construct a Response, so that would not add any safety. And
presumably, if git-annex avoids feeding any such keys to an external
special remote, it will never have a reason to make a Response using such a
key. If it did, it would result in a protocol error anyway.
There's still a Serializeable instance for Key; it's used by P2P.Protocol.
There, the Key is always in the final position, so it's ok if it contains
spaces.
Note that the protocol documentation has been fixed to say that the File
may contain spaces. One way that can happen, even though the Key can't,
is when using direct mode, and the work tree filename contains spaces.
When sending such a file to the external special remote the worktree
filename is used.
This commit was sponsored by Thom May on Patreon.
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anymore
To work around the problem that the external special remote protocol does
not support keys containing spaces.
This commit was sponsored by Denis Dzyubenko on Patreon.
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handing spaces in keys would complicate things like the external special remote protocol.
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Joey Hess