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We have xz/lzma support for a while, but only via an external binary
provided by xz-utils. Now that the Debian archive provides xz by default
and dpkg pre-depends on the library provided by liblzma-dev we can switch
now to use this library as well to avoid requiring an external binary.
For now the binary is in a prio:required package, but this might change
in the future.
API wise it is quiet similar to bz2 code expect that it doesn't provide
file I/O methods, so we piece this together on our own.
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Beside being a bit cleaner it hopefully also resolves oddball problems
I have with high levels of parallel jobs.
Git-Dch: Ignore
Reported-By: iwyu (include-what-you-use)
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Reported-By: gcc -Wignored-qualifiers
Git-Dch: Ignore
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Inspired by the rest of the patch in 661537, but abstract the
parsing of various ways of setting the build profiles more so it can
potentially be reused and all apt parts have the same behaviour.
Especially config options, cmdline options and environment will not be
combined as proposed as this isn't APTs usual behaviour and dpkg doesn't
do it either, so one overrides the other as it normally does.
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Automatically handle the override of list options via its parent value
which can even be a comma-separated list of values. It also adds an easy
way of providing a default for the list.
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No visible functional changes, just code moved around and additional
checks to eliminate impossible branches
Reported-By: scan-build
Git-Dch: Ignore
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Clear() only clears a config option, not removing it and an empty
setting still exists. Hence we set the option instead to the xz path
so that the later existance check can find a binary for the test
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- copy only configured translation files from a CD-ROM and not all
available translation files preventing new installs with d-i from
being initialized with all translations (Closes: #678227)
- handle Components in the reduction for the source.list as multi-arch CDs
otherwise create duplicated source entries (e.g. "wheezy main main")
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- if APT::Languages=none save "none" in allCodes so that the detected
configuration is cached as intended (Closes: #674690, LP: #1004947)
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- longcode Translation files are saved with encoded underscore,
so make sure to pick these files up as well for Acquire::Languages
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- use NULL instead of "" for no (un)compress parameters
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preference given by the Order setting is really available before adding
it as possible CompressionType.
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- if the compressor is not installed, but we link against it's
library accept it as a CompressionType (Closes: #669328)
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ignore the presents (or absence) of lzma if we decided to use xz
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- remove the libz-dev alternative from zlib1g-dev build-dependency
- do the same for bz2 builtin if available
* apt-pkg/contrib/fileutl.cc:
- use libz2 library for (de)compression instead of the bzip2 binary as
the first is a dependency of dpkg and the later just priority:optional
so we gain 'easier' access to bz2-compressed Translation files this way
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- if present, prefer xz binary over lzma
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- chroot if needed before calling dpkg --print-foreign-architectures
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- parse dpkg --print-foreign-architectures correctly in
case archs are separated by newline instead of space, too.
(Closes: #655590)
* Slovak (Ivan Masar). Closes: #652985
* Russian (Yuri Kozlov). Closes: #654844
* Hungarian (Gabor Kelemen). Closes: #655238
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- parse dpkg --print-foreign-architectures correctly in
case archs are separated by newline instead of space, too.
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* apt-pkg/deb/debmetaindex.cc:
- none is a separator, not a language: no need for Index (Closes: #624218)
* apt-pkg/aptconfiguration.cc:
- do not builtin languages only if none is forced (Closes: #643787)
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- none is a separator, not a language: no need for Index (Closes: #624218)
* apt-pkg/aptconfiguration.cc:
- do not builtin languages only if none is forced (Closes: #643787)
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done on the mirco-optimazation level, so lets fix them:
(performance) Possible inefficient checking for emptiness.
(performance) Prefer prefix ++/-- operators for non-primitive types.
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- ensure that native architecture is if not specified otherwise the
first architecture in the Architectures vector
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- fix comparing for a empty string
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- use dpkg --print-foreign-architectures to get multiarch configuration
if non is specified with APT::Architectures (Closes: #612958)
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- support adding new compressors by configuration
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- support download of xz-compressed indexes files
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* apt-pkg/aptconfiguration.cc:
- remove the inbuilt Translation files whitelist
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- add a special uncompressed compression type to prefer those files
* methods/{gzip,bzip}.cc:
- print a good error message if FileSize() is zero
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- respect the none-force even in LANG=C (Closes: #602573)
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- show a deprecation notice for APT::Acquire::Translation
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- remove duplicate architectures in getArchitectures()
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but we support the usage of the new ABI so libapt users
can start to prepare for MultiArch (Closes: #536029)
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- include all existing Translation files in the Cache (Closes: 564137)
Previously if APT was executed with a different LC_* all these invocations
needed to rebuild the Cache as too many files were included or missing:
Now the lists-directory is checked for Translation-files and all these
will be included in getLanguages() regardless of the environment setting
(after a "none" so APT will not use them for displaying information).
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