| Commit message (Collapse) | Author | Age |
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a redirect
The code explicitly switches from HEAD to GET for most redirects.
Possibly because someone misread a spec (which does require switching from
POST to GET for 303 redirects). Or possibly because the spec really is that
bad. Upstream bug: https://github.com/haskell/HTTP/issues/24
Since we absolutely don't want to download entire (large) files from
the web when checking that they exist with HEAD, I wrote my own redirect
follower, based closely on the one used by Network.Browser, but without
this misfeature.
Note that Network.Browser checks that the redirect url is a http url
and fails if not. I don't, because I want to not need to change this
code when it gets https support (related: I'm surprised to see it
doesn't support https yet..). The check does not seem security significant;
it doesn't support file:// urls for example. If a http url is redirected
to https, the Network.Browser will actually make a http connection again.
This could loop, but only up to 5 times.
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available, matches the size of the key.
If there's no Content-Length, or the key has no size, this check is not
done, but it should happen most of the time, and protect against web
content that has changed.
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GHC should probably export withFilePath.
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Use withCAString rather than withCString.
XXX Actually, this only works in non-unicode locales when presented with
unicode characters. Help?
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Conflicts:
Utility/Misc.hs
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ghc 7.4 comaplains about use of System.IO.Error to catch exceptions.
Ok, use Control.Exception, with variants specialized to only catch IO
exceptions.
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Under ghc 7.4, this seems to be able to handle all filename encodings
again. Including filename encodings that do not match the LANG setting.
I think this will not work with earlier versions of ghc, it uses some ghc
internals.
Turns out that ghc 7.4 has a special filesystem encoding that it uses when
reading/writing filenames (as FilePaths). This encoding is documented
to allow "arbitrary undecodable bytes to be round-tripped through it".
So, to get FilePaths from eg, git ls-files, set the Handle that is reading
from git to use this encoding. Then things basically just work.
However, I have not found a way to make Text read using this encoding.
Text really does assume unicode. So I had to switch back to using String
when reading/writing data to git. Which is a pity, because it's some
percent slower, but at least it works.
Note that stdout and stderr also have to be set to this encoding, or
printing out filenames that contain undecodable bytes causes a crash.
IMHO this is a misfeature in ghc, that the user can pass you a filename,
which you can readFile, etc, but that default, putStr of filename may
cause a crash!
Git.CheckAttr gave me special trouble, because the filenames I got back
from git, after feeding them in, had further encoding breakage.
Rather than try to deal with that, I just zip up the input filenames
with the attributes. Which must be returned in the same order queried
for this to work.
Also of note is an apparent GHC bug I worked around in Git.CheckAttr. It
used to forkProcess and feed git from the child process. Unfortunatly,
after this forkProcess, accessing the `files` variable from the parent
returns []. Not the value that was passed into the function. This screams
of a bad bug, that's clobbering a variable, but for now I just avoid
forkProcess there to work around it. That forkProcess was itself only added
because of a ghc bug, #624389. I've confirmed that the test case for that
bug doesn't reproduce it with ghc 7.4. So that's ok, except for the new ghc
bug I have not isolated and reported. Why does this simple bit of code
magnet the ghc bugs? :)
Also, the symlink touching code is currently broken, when used on utf-8
filenames in a non-utf-8 locale, or probably on any filename containing
undecodable bytes, and I temporarily commented it out.
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I had not realized what a memory leak the lazy state monad could be,
although I have not seen much evidence of actual leaking in git-annex.
However, if running git-annex on a great many files, this could matter.
The additional Utility.State.changeState adds even more strictness,
avoiding a problem I saw in github-backup where repeatedly modifying
state built up a huge pile of thunks.
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This drops the >>! and >>? with the nice low fixity. IfElse does have
undocumented >>=>>! and >>=>>? operators, but I deem that too fishy.
Anyway, using whenM and unlessM is easier; I sometimes mixed the operators
up.
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a stricter (but also partial) readMaybe is getting added to base
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git-annex FTBFS on s390, mips, powerpc, sparc. That StatFS code is failing
on all of them. At least on s390, the failure appears as:
Just (FileSystemStats {fsStatBlockSize = 4096, fsStatBlockCount = 0,
fsStatByteCount = 0, fsStatBytesFree = 0, fsStatBytesAvailable = 0,
fsStatBytesUsed = 0})
While I don't understand why this is happening, or how to fix it,
bandaid over it by checking for obviously bad values and returning Nothing.
That disables disk free space checking, but at least git-annex will work.
Upstream bug: http://code.google.com/p/xmobar/issues/detail?id=70
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Fails with gpg 2. Instead, use a different environment variable.
The clean fix would instead be to add an annex.gpg-options configuration.
But, that would be rather a lot of work and it's unlikely it would be
useful for much else.
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Only set --no-tty when GPG_AGENT_INFO is set and batch mode is used.
In the test suite, set GPG_AGENT_INFO to /dev/null to avoid the test suite
relying on /dev/tty.
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Dotfiles, and files inside dotdirs are not added by "git annex add" unless
the dotfile or directory is explicitly listed. So "git annex add ." will
add all untracked files in the current directory except for those in
dotdirs.
One reason for this is that it will make git-annex more usable with vcsh,
where you don't want "vcsh big annex add" to check in all the dotfiles
that are already versioned in other repositories.
(If you're using vcsh for repos that contain non-dotfiles, this won't help,
and you'll need to .gitignore such things, but this will cover the common
case.)
A more general reason why this seems like a good idea is the same reason ls
ignores dotfiles, just the unix convention that they are cruft that is kept
out of the way most of the time.
All the other git-annex commands still do deal with any dotfiles that do
get into the annex. This seemed right because if I've gone to the trouble
to add a dotfile, I will want "git annex get ." to get it along with
everything else.
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to provide parameters to whichever of wget or curl git-annex uses (depends on which is available, but most of their important options suitable for use here are the same).
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Makes it easy to find files with duplicate contents, anyway.. :)
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I was happily able to repurpose some code from Git.Filename to handle this.
I remember writing that code... a whole afternoon at a coffee shop, after
which I felt I'd struggled with Haskell and git, and sorta lost, in needing
to write this nasty peice of code. But was also pleased at the use of a
pair of functions and quickcheck that allowed me to get it 100% right.
So, turns out I not only got it right, but the code wasn't as special-purpose
as I'd feared. Yay!
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is output by git annex find.
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This is built for speed; a format string is parsed once, generating a
Format, that can be applied repeatedly to different sets of variables
to generate output.
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This involved adding a test harness to run gpg with a dummy key, and lots
of fun.
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This is both a partial Prelude that conflicts with the real one, and a
way to guard against the Prelude's partial functions.
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Left a few Prelude.head's in where it was checked not null and too hard to
remove, etc.
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Safe versions of init and last
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There are still hundreds of places that use partial functions head, tail,
init, and last.
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The only fully supported thing is to have the main repository on one disk,
and .git/annex on another. Only commands that move data in/out of the annex
will need to copy it across devices.
There is only partial support for putting arbitrary subdirectories of
.git/annex on different devices. For one thing, but this can require more
copies to be done. For example, when .git/annex/tmp is on one device, and
.git/annex/journal on another, every journal write involves a call to
mv(1). Also, there are a few places that make hard links between various
subdirectories of .git/annex with createLink, that are not handled.
In the common case without cross-device, the new moveFile is actually
faster than renameFile, avoiding an unncessary stat to check that a file
(not a directory) is being moved. Of course if a cross-device move is
needed, it is as slow as mv(1) of the data.
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Signed-off-by: Joey Hess <joey@kitenet.net>
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over ssh.
This is actually tricky, 45bbf210a1210172c7c7b87879ed74f7c8ccbdba added
the escaping because it's needed for rsync that does go over ssh.
So I had to detect whether the remote's rsync url will use ssh or not,
and vary the escaping.
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Joey Hess
Mark Wright