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This further improves our performance, and rred on uncompressed
files now spents 78% of its time in writing. Which means that
we should really look at buffering those.
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This introduces a -t mode in which the first argument is input,
the second is output and the remaining are diffs.
This allows us to test patching compressed files, which are
detected using their file extension.
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The code uses memmove() to move parts of the buffer to the
front when the buffer is only partially read. By simply
reading one page at a time, the maximum size of bytes that
must be moved has a hard limit, and performance improves:
In one test case, consisting of a 430 MB Contents file,
and a 75K PDiff, applying the PDiff previously took about
48 seconds and now completes in 2 seconds.
Further speed up can be achieved by buffering writes, they
account for about 60% of the run-time now.
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Gbp-Dch: ignore
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And as we are at it lets fix the 'style' issue I introduced with the
filefd changes as well.
Reported-By: gcc -fsanitize's & cppcheck
Git-Dch: Ignore
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We try to acquired the locks, but we didn't stop if we failed to get it…
Closes: 808561
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We don't need the buffer that often - only for ReadLine - as it is only
occasionally used, so it is actually more efficient to allocate it if
needed instead of statically by default. It also allows the caller to
influence the buffer size instead of hardcoding it.
Git-Dch: Ignore
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The default implementation of ReadLine was very naive by just reading
each character one-by-one. That is kinda okay for libraries implementing
compression as they have internal buffers (but still not great), but
while working with files directly or via a pipe as there is no buffer
there so all those reads are in fact system calls.
This commit introduces an internal buffer in the FileFd implementation
which is only used by ReadLine. The more low-level Read and all other
actions remain unbuffered – they just changed to deal with potential
"left-overs" in the buffer correctly.
Closes: 808579
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If we use the library to compress xz, still try to understand and pick
up the arguments we would have used to call xz to figure out which level
the user wants us to use instead of defaulting to level 6 (which is the
default level of xz).
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dpkg switched from CRC32 to CRC64 in
777915108d9d36d022dc4fc4151a615fc95e5032 with the message:
| This is the default CRC used by the xz command-line tool, align with
| it and switch from CRC32 to CRC64. It should provide slightly better
| detection against damaged data, at a negligible speed difference.
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This isn't implementing any new features, it is "just" moving code
around from FileFd methods which decided on each call how to handle the
request by including all logic for all possible compressor backends in
the method body to a model in which backend-specifics are implemented in
a FileFdPrivate subclass. This avoids a big chunk of #ifdef's and should
make it a tiny bit more obvious which backend uses which code.
The execution of the idea is slightly uglified by the need to preserve
ABI and API which causes liberal befriending.
Git-Dch: Ignore
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The output changes slightly between different versions, which we already
dealt with in the main testcase for apt-key, but there are two more
which do not test both versions explicitly and so still had gpg1 output
to check against as this is the default at the moment.
Git-Dch: Ignore
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The presents (even of an empty) secring.gpg is indication enough for
gpg2 to tigger the migration code which not only produces a bunch of
output on each apt-key call, but also takes a while to complete as an
agent needs to be started and all that.
We workaround the first part by forcing the migration to happen always
in a call we forced into silence, but that leaves us with an agent to
start all the time – with a bit of reordering we can make it so that we
do not explicitly create the secring, but let gpg create it if needed,
which prevents the migration from being triggered and we have at least a
bit less of a need for an agent. Changes - even to public only keyrings
- still require one, but such actions are infrequent in comparison to
verification calls, so that should be a net improvement.
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apt-key creates internally a script (since ~1.1) which it will call to
avoid dealing with an array of different options in the code itself, but
while writing this script it wraps the values in "", which will cause
the shell to evaluate its content upon execution.
To make 'use' of this either set a absolute gpg command or TMPDIR to
something as interesting as:
"/tmp/This is fü\$\$ing cràzy, \$(man man | head -n1 | cut -d' ' -f1)\$!"
If such paths can be encountered in reality is a different question…
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This doesn't allow all tests to run cleanly, but it at least allows to
write tests which could run successfully in such environments.
Git-Dch: Ignore
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Git-Dch: Ignore
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There's no point trying to read 0 bytes, so let's just not
do this and switch to a while loop like in Write().
Gbp-Dch: ignore
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Turn the do-while loop into while loops, so it simply does nothing
if the Size is already 0.
This reverts commit c0b271edc2f6d9e5dea5ac82fbc911f0e3adfa7a which
introduced a fix for a specific instance of the issue in the
CopyFile() function.
Closes: #808381
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On EOF, ToRead will be 0, which might trigger on some systems (e.g.
on the Hurd) an error due to the invalid byte count passed to write().
The whole loop already checks for ToRead != 0, so perform the writing
step only when there was actual data read.
Closes: #808381
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Commit e977b8b9234ac5db32f2f0ad7e183139b988340d tries to make BufSize
calculated based on the size of the buffer; the problem is that
std::unique_ptr::size() returns a pointer to the data, so sizeof()
equals to the size of a pointer (later divided by sizeof(char), which
is 1). The result is that the CopyFile copies in chunks of 8 bytes,
which is not exactly ideal...
As solution, declare BufSize in advance, and use its value to allocate
the Buf array.
Closes: #808381
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Testing /usr as TMPDIR assumes that GetTempDir() cannot use it
because it cannot write to it; this is true for non-root users, but
not so much for root.
Since root can access everything, perform this particular test case
only when not running as root.
Closes: #808383
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This filters out errors due to timing issues. Early exits if
enough pulses occured.
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This helps writing test cases. Also adapt the test case that
expected 64-bit.
Nothing changes performance wise, the distribution of the hash
values remains intact.
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Allow an optional colon followed by anything at the end.
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This makes the test suite work on 32 bit-long platforms.
Gbp-Dch: ignore
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Use asprintf() so we have easy error detection and do not depend
on PATH_MAX.
Do not add another separator to the generated path, in both cases
the path inside the chroot is guaranteed to have a leading /
already.
Also pass -Wall to gcc.
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This caused test-bug-717891-abolute-uris-for-proxies to fail
Gbp-Dch: ignore
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This breaks a lot of test cases
Gbp-Dch: ignore
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The allocated buffer was one byte too small. Allocate a buffer
of PATH_MAX instead and use snprintf(), as suggested by Martin
Pitt.
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This reduces the chance that the test fails.
Gbp-Dch: ignore
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Instead of checking for [10%, 100%), check for (0%, 100%),
that is everything < 100% and >0%.
Gbp-Dch: ignore
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This should make the test work on non-amd64 systems
Gbp-Dch: ignore
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Ubuntu's autopkgtest server always prints
dpkg-gencontrol: warning: File::FcntlLock not available; using flock which is not NFS-safe
which is somewhat annoying. Work around that by depending on that
perl stuff for the test suite.
Gbp-Dch: ignore
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Trying to clean up directories which do not exist seems rather silly if
you think about it, so let apt think about it and stop it.
Depends a bit on the caller if this is fixing anything for them as they
might try to acquire a lock or doing other clever things as apt does.
Closes: 807477
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Regression of 1e064088bf7b3e29cd36d30760fb3e4143a1a49a (1.1~exp4) which
moved code around and renamed methods heavily ending up calling the
wrong method matching packagenames only instead of calling the full
array. Most commands work with versions, so this managed to fly under
the radar for quite a while.
Closes: 807870
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If we can't work with the hashes we parsed from the Release file we
display now an error message if the Release file includes only weak
hashes instead of downloading the indexes and failing to verify them
with "Hash Sum mismatch" even through the hashes didn't mismatch (they
were just weak).
If for some (unlikely) reason we have got weak hashes only for
individual targets we will show a warning to this effect (again, befor
downloading and failing the index itself).
Closes: 806459
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The "standard" which (debianutils) has no output whatsoever on stderr,
bash and dash which use this implementation therefore haven't either.
In zsh 'which' is a shell built-in – and has no stderr output either, it
does print an error message on stdout…
So, realistically, a redirection isn't needed at all, but it also can't
hurt (<- I have said that before in this context ->) so why not for
consistency with… well, not with "command -v" as that hasn't an error
message either. Lets say for consistency with my mental image of shell,
as I am still a bit puzzled by zsh's which and now could imagine even
more strange things in other shells.
Closes: 807373
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Closes: 807413
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Korean translation update is attached.
I downloaded the original from https://www.debian.org/international/l10n/po/ko.
Originally, "manually" and "automatically" were translated same,
which was confusing.
Mail-Reference: <CAPrzcnL_YynHQkCSE4xH29eW1O0Q6SPhoSf21KOFTu=Vv6-0Nw@mail.gmail.com>
Mail-Archive: https://lists.debian.org/deity/2015/12/msg00108.html
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Reversing the parsing order ensures that we parse weaker hashes (like
SHA1) before we touch newer/stronger hashes (like SHA256) as the weaker
ones will usually be there for a longer time already with data already
present, which we would discard if we start with the strong one first.
The discarding is visible in the debug logs:
File X wasn't in the list for the first parsed hash! (history)
File X wasn't in the list for the first parsed hash! (patches)
which if file X is part of the patch-path means apt will not find a path and
fallback to acquire the whole file instead needlessly.
If file X isn't part of the patch-path that is no problem, so that
effects only the update-call which updates with patches coming from
before and after the addition of a new hash.
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Reported-By: Manuel A. Fernandez Montecelo <mafm@debian.org>
Git-Dch: Ignore
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Git-Dch: Ignore
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Yay, newer server
Gbp-Dch: ignore
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Fixes a warning reported by gcc.
Gbp-Dch: ignore
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This fixes a warning reported by gcc.
Gbp-Dch: ignore
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With the package names now normalized to lower case, the caches
of affected systems need to be rebuild. Adjust the minor version
to trigger such a rebuild.
Gbp-Dch: ignore
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dpkg does that when reading package files, so we should do
the same. This only deals with parsing names from binary
package paragraphs, it does not look at source package names
and/or the list of binaries in a dsc file.
Closes: #807012
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