Joey Hess [Tue, 1 Dec 2020 20:05:55 +0000 (16:05 -0400)]
improve p2p protocol handling of requested object not available
Avoid spurious "verification of content failed" message when downloading
content from a ssh or tor remote fails due to the remote no longer having a
copy of the content.
The P2P protocol already handled this case by sending DATA 0, followed by
VALID. But VALID was not really right, because the data is not the
requested data. So, send DATA 0, followed by INVALID. Old versions of
git-annex handle INVALID the same as VALID in this case. Now new versions
avoid displaying an incorrect message.
It would be better for the P2P protocol to have a different way to indicate
this, like perhaps sending INVALID without DATA. But that would be a
breaking change and need a new protocol verison. Since INVALID already is
part of the protocol and already needs to be handled, using it for this
special case too seems ok, and avoids the complication of another protocol
version.
This commit was sponsored by Jochen Bartl on Patreon.
Joey Hess [Tue, 1 Dec 2020 19:39:22 +0000 (15:39 -0400)]
avoid hGetMetered 0 closing the handle
This is an edge case, which happened to be triggered by the P2P protocol
seeing DATA 0. When reading 0 bytes, getting an empty string does
not mean the handle has reached EOF.
I verified there was in fact a bug, where get of an empty file followed
by another file would get the empty file and then fail
with "handle is closed". This fixes it.
This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
Joey Hess [Mon, 30 Nov 2020 17:03:47 +0000 (13:03 -0400)]
Fix hang on shutdown of external special remote using ASYNC protocol extension.
Reversion introduced in version 8.20201007, one release after the 1st
release with the extension.
Surprisingly, hClose can hang if another thread is reading from the
handle. This is because it uses takeMVar.
The use of cancel here does mean that, if receiveMessageAddonProcess
or Remote.External.AsyncExtension.receiveloop allocated some resource in
a non-async-exception safe way, they might not get a chance to clean it up.
They do not appear to, and anyway, this only happens when git-annex is
shutting down, so any recource that did leak would not be a problem.
This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
Joey Hess [Tue, 24 Nov 2020 18:07:46 +0000 (14:07 -0400)]
Made the test suite significantly less noisy
Only displaying git-annex and git command output when something went wrong.
A few could still leak stderr. These include the couple of calls
to readProcess, which reads stdin but lets stderr through. But they don't
leak any usually, so probably only would when failing anyway.
Currently, there is no excess output at all!
This commit was sponsored by Brock Spratlen on Patreon.
Joey Hess [Tue, 24 Nov 2020 16:38:12 +0000 (12:38 -0400)]
finish fixing removeLink on windows
9cb250f7be21a8f5b15454df4fb67bfd1811e39d got the ones in RawFilePath,
but there were others that used the one from unix-compat, which fails at
runtime on windows. To avoid this,
import System.PosixCompat.Files hiding removeLink
gueux [Thu, 19 Nov 2020 22:14:24 +0000 (22:14 +0000)]
rename bugs/adjust_--unlock_implies_all_files_set_as_modified.mdwn to bugs/after_adjust_--unlock_implies__44___a_lot_of_files_are_reported_as_modified.mdwn
Joey Hess [Thu, 19 Nov 2020 20:36:37 +0000 (16:36 -0400)]
convert processTranscript to use hGetLineUntilExitOrEOF
It does use it on both stdout and stderr. It seems unlikely the problem
could really affect stdout, but the unix implementation of it combines
both into a single handle in any case.
Joey Hess [Thu, 19 Nov 2020 20:13:31 +0000 (16:13 -0400)]
convert to use hGetLineUntilExitOrEOF
It looks to me like the old code would have already dealt with the case
of ssh starting a ssh daemon that inherits stderr and keeps it open.
The ender thread closed the handle, which would unblock the other thread
and let it exit. Using hGetLineUntilExitOrEOF makes this more explicit
that it's dealt with and simplifies the code.
Joey Hess [Thu, 19 Nov 2020 18:41:33 +0000 (14:41 -0400)]
preserve other headers when adding resume header
It had lost the hAcceptEncoding header that is set as part of the
overriding of http-client's default decompression of compressed files.
Seems likely that would have caused resuming of compressed files to fail
in some cases.
This commit was sponsored by Brett Eisenberg on Patreon.
Joey Hess [Thu, 19 Nov 2020 18:03:00 +0000 (14:03 -0400)]
don't rely on exception for http 416
Fix a bug that could make resuming a download from the web fail when the
entire content of the file is actually already present locally.
What a mess that Request can throw exceptions or not, depending on how
it's configured. Makes it very hard if you need to handle some specific
http status codes in a function like this! Implementing everything two
ways did not seem appealing, if possible at all, so I decided to
override the Request if it did come configured to throw exception on
non-2xx http status. Other exceptions, like from http-client-restricted,
or due to a redirect to a non-http url, still get thrown.
This commit was sponsored by Luke Shumaker on Patreon.
Joey Hess [Thu, 19 Nov 2020 16:50:25 +0000 (12:50 -0400)]
fix windows assistant upgrade glitch
Prevent windows assistant from trying (and failing) to upgrade itself,
which has never been supported on windows.
The new windows build is made with UPGRADE_LOCATION set, which enabled this
code path that had never run on windows before, and doesn't work. I don't
want to try to support self-upgrade on windows, or generally on other OS's
than the ones where its working, so added a check for that. This way the
build can keep setting UPGRADE_LOCATION and if some later git-annex does
learn how to upgrade itself on some OS, it won't need changing the build
setup.
Joey Hess [Thu, 19 Nov 2020 16:20:18 +0000 (12:20 -0400)]
fix removeLink on windows
This removeLink was introduced in commit e505c03bccdc6567cd517a6ddaf70a411489473d, which replaced code
that used removeFile on Windows. So, I know git-annex did not used to do
anything other than removeFile on Windows. If there were symlinks it
wanted to remove, this would not work on windows, but of course it does
not use symlinks on windows.