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Gbp-Dch: ignore
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No user-visible change as it effects mostly code comments and
not a single error message, manpage or similar.
Reported-By: codespell & spellintian
Gbp-Dch: Ignore
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This makes it easier to see which headers includes what.
The changes were done by running
git grep -l '#\s*include' \
| grep -E '.(cc|h)$' \
| xargs sed -i -E 's/(^\s*)#(\s*)include/\1#\2 include/'
To modify all include lines by adding a space, and then running
./git-clang-format.sh.
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Most of them in (old) code comments. The two instances of user visible
string changes the po files of the manpages are fixed up as well.
Gbp-Dch: Ignore
Reported-By: spellintian
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Introduce a new enum class and add functions that can do a lookup
with that enum class. This uses triehash.
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This allows us to add a perfect hash function to the tag file
without having to reimplement the methods a second time.
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Move the use of the AlphaHash to a new second hash table in
preparation for the arrival of the new perfect hash function.
With the new perfect hash function hashing most of the keys for
us, having 128 slots for a fallback hash function seems enough
and prevents us from wasting space.
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This improves performance of the cache generation on my
ARM platform (4x Cortex A15) by about 10% to 20% from
2.35-2.50 to 2.1 seconds.
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apt_preferences and deb822-style sources used the specialized class
pkgUserTagSection to deal with comments before/after a given stanza, but
it couldn't deal with comments in the stanza at all.
codesearch suggests that nobody else does and a vastely superior way of
working with potentially commented files is implemented now, so we can
officially discourage the use of the old incomplete hack class.
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APT usually deals with perfectly formatted files generated automatically
be other programs – and as it has to parse multiple MBs of such files it
tries to be fast rather than forgiving.
This was always a problem if we reused this parser for files with a
deb822 syntax which are mostly written by hand however, like
apt_preferences or the deb822-style sources as these can include stray
newlines and more importantly comments all over the place.
As a stopgap we had pkgUserTagSection which deals at least with comments
before and after a given stanza, but comments in between weren't really
supported and now that we support parsing debian/control for e.g.
build-dep we face the full comment problem e.g. with comments inbetween
multi-line fields (like Build-Depends).
We can't easily deal with this on the pkgTagSection level as the interface
gives access to 'raw' char-pointers for performance reasons so we would
need to optionally add a buffer here on which we could remove comments
to hand out pointers into this buffer instead. The interface is quite
large already and supports writing stanzas as well, which does not
support comments at all either. So while in future it might make sense
to have a parser setup which deals with and keeps comments in this
commit we opt for the simpler solution for now: We officially declare
that pkgTagSection does not support comments and instead expect the
caller to deal with them, which in our case is pkgTagFile:
pkgTagFile is extended with an additional mode which can deal with
comments by dropping them from the buffer which will later form the
input of pkgTagSection. The actual implementation is slightly more
complex than this sentence suggests at first on one hand to have good
performance and on the other to allow jumping directly to stanzas with
offsets collected in a previous run (like our cache generation does it
for example).
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Git-Dch: Ignore
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We store very few flags in the cache, so keeping storage space for 8 is
enough for all of them and still leaves a few unused bits remaining for
future extensions without wasting bytes for nothing.
Git-Dch: Ignore
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We aren't and we will not be really compatible again with the previous
stable abi, so lets drop these markers (which never made it into a
released version) for good as they have outlived their intend already.
Git-Dch: Ignore
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C++11 adds the 'override' specifier to mark that a method is overriding
a base class method and error out if not. We hide it in the APT_OVERRIDE
macro to ensure that we keep compiling in pre-c++11 standards.
Reported-By: clang-modernize -add-override -override-macros
Git-Dch: Ignore
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Having two different formats in the same file is very dirty and causes
external tools to fail hard trying to parse them. It is probably not a
good idea for them to parse them in the first place, but they do and we
shouldn't break them if there is a better way.
So we solve this issue for now by giving our deb822 format a new
filename extension ".sources" which unsupporting applications are likely
to ignore an can begin gradually moving forward rather than waiting for
the unknown applications to catch up.
Currently and for the forseeable future apt is going to support both
with the same feature set as documented in the manpage, with the
longtime plan of adopting the 'new' format as default, but that is a
long way to go and might get going more from having an easier time
setting options than from us pushing it explicitely.
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Various small leaks here and there. Nothing particularily big, but still
good to fix. Found by the sanitizers while running our testcases.
Reported-By: gcc -fsanitize
Git-Dch: Ignore
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Doing this disables the implicit copy assignment operator (among others)
which would cause hovac if used on the classes as it would just copy the
pointer, not the data the d-pointer points to. For most of the classes
we don't need a copy assignment operator anyway and in many classes it
was broken before as many contain a pointer of some sort.
Only for our Cacheset Container interfaces we define an explicit copy
assignment operator which could later be implemented to copy the data
from one d-pointer to the other if we need it.
Git-Dch: Ignore
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To have a chance to keep the ABI for a while we need all three to team
up. One of them missing and we might loose, so ensuring that they are
available is a very tedious but needed task once in a while.
Git-Dch: Ignore
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TFRewrite is okay, but it has obscure limitations (256 Tags), even more
obscure bugs (order for renames is defined by the old name) and the
interface is very c-style encouraging bad usage like we do it in
apt-ftparchive passing massive amounts of c_str() from std::string in.
The old-style is marked as deprecated accordingly. The next commit will
fix all places in the apt code to not use the old-style anymore.
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We have a d-pointer available here, so go ahead and use it which also
helps in hidding some dirty details here. The "hard" part is keeping the
abi for the inlined methods so that they don't break – at least not more
than before as much of the point beside a speedup is support for more
than 256 fields in a single section.
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Adding a new parameter (with a default) is an ABI break, but you can
overload a method, which is "just" an API break for everyone doing
references to this method (aka: nobody).
Git-Dch: Ignore
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Git-Dch: Ignore
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Reimplementing an inline method is opening a can of worms we don't want
to open if we ever want to us a d-pointer in those classes, so we do the
only thing which can save us from hell: move the destructors into the cc
sources and we are good.
Technically not an ABI break as the methods inline or not do the same
(nothing), so a program compiled against the old version still works
with the new version (beside that this version is still in experimental,
so nothing really has been build against this library anyway).
Git-Dch: Ignore
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Reported-By: cppcheck
Git-Dch: Ignore
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Reported-By: codespell
Git-Dch: Ignore
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The by-hash can be configured on a per-hostname basis and a Release
file can indicate that it has by-hash support via a new flag.
The location of the hash now matches the AptByHash spec
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Removes the 256 fields limit, deals consistently with spaces littered
all over the place and is even a tiny bit faster than before.
Even comes with a bunch of new tests to validate these claims.
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This methods should not be used by anyone expect the library itself as
they are helpers for the specific class and therefore perfect candidates
for hidding.
Git-Dch: Ignore
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Reported-By: gcc -Wignored-qualifiers
Git-Dch: Ignore
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Conflicts:
apt-pkg/tagfile.h
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In 91c4cc14d3654636edf997d23852f05ad3de4853 I removed the +256 from
the pkgTagFile call parsing Release files as I couldn't find a
mentioning of a reason for why and it was marked as XXX which suggested
that at least someone else was suspicious.
It turns out that it is indeed "documented", it just didn't found it at
first but the changelog of apt 0.6.6 (29. Dec 2003) mentions:
* Restore the ugly hack I removed from indexRecords::Load which set the
pkgTagFile buffer size to (file size)+256. This is concealing a bug,
but I can't fix it right now. This should fix the segfaults that
folks are seeing with 0.6.[45].
The bug it is "hiding" is that if pkgTagFile works with a file which doesn't
end in a double newline it will be adding it without checking if the Buffer
is big enough to store them. Its also not a good idea to let the End
pointer be past the end of our space, even if we don't access the data.
Closes: 719629
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The breakage is just to big for now, so guard the change with
#ifndef APT_8_CLEANER_HEADERS and be nice to library users
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constructor.
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size are pretty unlikely for now, but we need it for deb
packages which could become bigger than 4GB now (LP: #815895)
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* [ABI-Break] merge lp:~mvo/apt/sha512-template to add support for sha512
* [ABI-Break] merge lp:~mvo/apt/dpointer to support easier extending
without breaking the ABI
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apt-pkg/deb/debsystem.h: make destructor virtual
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