apt/apt-pkg/pkgcache.cc, branch 1.4.5

fix various typos reported by spellintian

2017-01-19T14:59:38Z

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

Compare size before data when ordering cache bucket entries

2016-11-22T21:58:19Z

This has the effect of significantly reducing actual string comparisons, and should improve the performance of FindGrp a bit, although it's hardly measureable (callgrind says it uses 10% instructions less now).

Introduce tolower_ascii_unsafe() and use it for hashing

2016-11-22T21:58:18Z

This one has some obvious collisions for non-alphabetical characters, like some control characters also hashing to numbers, but we don't really have those, and these are hash functions which are not collision free to begin with.

Bump the cache major version for non-backportable changes

2016-11-22T21:58:18Z

We already have two stable series with major version 10, and the next commits will introduce non-backportable performance changes that affect the cache algorithms, so we need to bump the major version now to prevent future problems.

VersionHash: Do not skip too long dependency lines

2016-09-18T12:17:17Z

If the dependency line does not contain spaces in the repository but does in the dpkg status file (because dpkg normalized the dependency list), the dpkg line might be longer than the line in the repository. If it now happens to be longer than 1024 characters, it would be skipped, causing the hashes to be out of date. Note that we have to bump the minor cache version again as this changes the format slightly, and we might get mismatches with an older src cache otherwise. Fixes Debian/apt#23

cache: Bump minor version to 6

2016-06-28T20:15:50Z

Needed for the previous change

factor out Pkg/DepIterator prettyprinters into own header

2016-04-28T08:08:32Z

The old prettyprinters have only access to the struct they pretty print, which isn't enough usually as we want to know for a package also a bit of state information like which version is the candidate. We therefore need to pull the DepCache into context and hence use a temporary struct which is printed instead of the iterator itself.

cachefile: Only set members that were initialized successfully

2016-03-19T06:19:24Z

Otherwise, things will just start failing later down the stack, because (a) the lazy getters do not check if building was successful and (b) any further getter call would return the invalid object anyway. Also initialize VS in pkgCache to nullptr by default. Closes: #818628

Fix several typos

2016-03-06T23:14:48Z

This effectively merges branch 'typofixes-vlajos-20150807' of github.com:vlajos/apt with the following commit: commit 13cacb3e2e2352ba701e769fc889e3344fabbf7e Author: Veres Lajos Date: Sun Aug 9 00:12:53 2015 +0100 typofix - https://github.com/vlajos/misspell_fixer It has been rebased for a better commit message.

Fix crash with empty architecture list

2016-02-25T15:46:42Z

If the architecture list is empty somehow, fail normally. LP: #1549819