This code hasn't been looked at in some time. I grabbed a more recent
version of the RPM source (4.4.2.3) and attempted to sync up any changes
they have made, as well as make the libalpm additional code much cleaner and
limited to only a few added lines of code.
The size of this patch might make you think we added code, but bloat-o-meter
actually tells us otherwise:
<function> <old> <new> <diff>
_alpm_versioncmp 1485 1021 -464
Signed-off-by: Dan McGee <dan@archlinux.org>
Any real call of this function doesn't specify a name or version ahead of
time, so just kill that functionality off. Now to remove those dummy
packages...
Signed-off-by: Dan McGee <dan@archlinux.org>
If we have a package without name and/or version, we are really out of luck.
Speed these functions up by removing unnecessary code. Note that both the
splitname and pkg_load functions, where the name and version of packages are
initially populated for databases and pkg.tar.gz files respectively, enforce
that every new package struct created has a name and version.
Signed-off-by: Dan McGee <dan@archlinux.org>
Commit 0460038447 caused a regression when
rereading the pkgcache after updating the on-disk databases. A rewinddir
call was errantly removed.
Instead of replacing the call to rewindir, clean up this whole mess.
db_scan is used only once and with target == NULL so there was actually half
the code of db_scan which was unused. This is gone now and replaced by a
single new db_populate function.
Dan: add_sorted ended up being 3x slower than one msort at the end, so I
changed back to that. I also made one pointer variable const and merged this
whole patch with my original fix for the rewinddir issue.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This has been around since at least pacman 2.9.8. Frugalware just dumped it
in commit 113ec73bfcfdc, and deleting it here and running pactest shows that
nothing that we have actually tested changes. If someone can pactest the
edge case where this is needed, then show me the money.
Signed-off-by: Dan McGee <dan@archlinux.org>
* remove obsolete and unused *_cmp helper functions like deppkg_cmp and
_alpm_grp_cmp
* new alpm_list_remove_str function, used 6 times in handle.c
* remove _alpm_prov_cmp / _alpm_db_whatprovides and replace them by
a more general alpm_find_pkg_satisfiers with a cleaner implementation.
before: alpm_db_whatprovides(db, targ)
after: alpm_find_pkg_satisfiers(alpm_db_getpkgcache(db), targ)
* remove satisfycmp and replace alpm_list_find + satisfycmp usage by
_alpm_find_dep_satisfiers.
before : alpm_list_find(_alpm_db_get_pkgcache(db), dep, satisfycmp)
after : _alpm_find_dep_satisfiers(_alpm_db_get_pkgcache(db), dep)
* remove _alpm_pkgname_pkg_cmp, which was used with alpm_list_remove, and
use _alpm_pkg_find + alpm_list_remove with _alpm_pkg_cmp instead.
This commit actually get rids of all complicated and asymmetric _cmp
functions. I first thought these functions were worth it, be caused it
allowed us to reuse list_find and list_remove. But this was at the detriment
of the clarity and also the ease of use of these functions, dangerous
because of their asymmetricity.
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
Now the syntax is coherent with alpm_list_find and alpm_sync_find.
Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Dan McGee <dan@archlinux.org>
alpm_pkg_load() and parse_descfile() are specific to getting information
from package files, just as other code is specific to getting information
into or out of a package database. Move this code out of package.c, which
should eventually only contain operators on the pmpkg_t struct that do not
depend at all on where the data came from.
Signed-off-by: Dan McGee <dan@archlinux.org>
We have some useless abstractions like an alpm_db_rewind function. I've read
somewhere that readdir() was the worst filesystem function call invented,
and what do we do? Add a wrapper around it. Kill this abstraction and move
some other things into be_files that should be there anyway because they
are so tied to how a files backend works.
Signed-off-by: Dan McGee <dan@archlinux.org>
It was unclear what "loading the full package" actually did. The
detailed description should clear that up, without having to look at the
code.
Signed-off-by: Sebastian Nowicki <sebnow@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
The start of a few commits to remove some PATH_MAX usage from our code. Use
a dynamically allocated string instead.
Signed-off-by: Dan McGee <dan@archlinux.org>
We only need a copy of this string once we know we are going to extract it,
and we don't need a static buffer to copy it into since it is coming from a
known-length string.
Signed-off-by: Dan McGee <dan@archlinux.org>
XySSL 0.9 was released; sync our code with the upstream source. Note that
there weren't any real changes besides renaming of macros, so nothing much
to see here.
The biggest change may be the licence- it is now GPL/BSD software rather
than LGPL/BSD. The license header is changed to reflect this.
Signed-off-by: Dan McGee <dan@archlinux.org>
It is hard to decipher what the transaction events actually notify you
of, and what parameters are passed to the callback function, without
looking at the code. This patch adds documentation for the _pmtransevt_t
enum in order to clarify what the event is for and what data is passed
when the callback is called.
Signed-off-by: Sebastian Nowicki <sebnow@gmail.com>
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
Rework to use a single #define for the buffsize, and in the process clean up
some other code and double the default buffer size.
Signed-off-by: Dan McGee <dan@archlinux.org>
We were a bit juryrigged using one call to mkstemp() before rather than
extracting the new files side-by-side and doing our comparisons there. We
were also facing some permissions issues. Instead, make our life easier by
extracting all temp files to a '.paccheck' extension, doing our md5
comparisons, and then taking the correct actions.
Still to be done here- a cleanup of the use of PATH_MAX which should not be
necessary if we use dynamic allocation on the heap.
Signed-off-by: Dan McGee <dan@archlinux.org>
I'm not sure why these were ever here, as by this point we have already
extracted the file meaning a call to this function is basically a no-op.
Signed-off-by: Dan McGee <dan@archlinux.org>
We removed one too many FREELIST() calls when trying to fix some memleaks,
and add a safety/sanity check to ensure filename is set, as packages in old
DBs are likely to not have this field.
Signed-off-by: Dan McGee <dan@archlinux.org>
Reference : FS#9547.
The get_filename function first tries to get the filename field from the
database, and if it doesn't find it, it tries to guess it based on the name,
version and arch.
This field was introduced in 3.0, but there are still many old entries in
the official databases without it. So the databases need to be regenerated
first before this patch can be applied.
There is a second problem with the delta code, which needs the filename for
locally installed packages too, but this field is not present in the local
db. So the delta code needs to be fixed first.
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
As Nathan noticed, the new informations in the delta struct allows us to
get rid of this list :
http://www.archlinux.org/pipermail/pacman-dev/2008-February/011163.html
So I rewrote apply_deltas for that. The previous apply_deltas also had a
limitation: it assumed that the initial package and the deltas were in the
first cache dir, which is not necessarily the case. That situation is
supported now.
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
Using the graph structures that Nagy set up for dependency sorting, we now
do a similar process for deltas. Load up all of the deltas into a graph
object on which we can then apply Dijkstra's algorithm, using the new weight
field of graph struct.
We initialize the nodes weight using the base files that we can use in our
filecache (both filename and md5sum must match). The algorithm then picks
the best path among those that can be resolved.
Note that this algorithm has a few advantages over the old one:
1. It is completely file agnostic. These delta chains do not have to consist
of package files- this could be adopted to do delta-fied DBs.
2. It does not use the local_db anymore, or even care if a package or file
is currently installed. Instead, it only looks in the filecache for files
and packages that match delta chain entries.
Original-work-by: Dan McGee <dan@archlinux.org>
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Start to move the delta struct away from an assumed package name scheme and
towards something that is package (or even filename) agnostic. This will
allow us much greater flexibility in the usage of deltas (maybe even sync
DBs some day) as well as allowing code outside of delta.h/delta.c to be much
cleaner with less of a need for snprintf() calls.
Signed-off-by: Dan McGee <dan@archlinux.org>
In the can_remove_package function, we don't need to compute the whole
requiredby list, we just need to find one member of it that doesn't belong
to the targets list.
That way we get a small speedup and remove the only usage of
alpm_pkg_compute_requiredby in the backend, so that it can be tweaked for
frontend usage.
Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This should remove the need for any additional patching to run on platforms
that have libfetch available but not libdownload. It isn't the prettiest,
but we have kept our libdownload impact down to just a few files, so it can
be easily done.
Signed-off-by: Dan McGee <dan@archlinux.org>
free() is designed to do nothing if it is passed a NULL pointer, so there is
no need to check for it on our end. Change/fix the macro.
Signed-off-by: Dan McGee <dan@archlinux.org>
Darwin's binary format does support symbols with differing visibilities, but
it does not support the protected or internal visibilities- only hidden. For
Darwin only, we should fall back to this visibility to prevent warnings from
the compiler and because it is close enough for our library purposes.
See http://gcc.gnu.org/viewcvs/*checkout*/trunk/gcc/config/darwin.c, search
for the "darwin_assemble_visibility" function for more details.
Also add pacman.static.exe to gitignore.
Signed-off-by: Dan McGee <dan@archlinux.org>
Linux includes all the gettext stuff in glibc, so there is no need for the
libintl links which we failed to include in our linker variables. Update the
makefiles which should enable NLS support on all platforms, including OS X
and Cygwin.
Signed-off-by: Dan McGee <dan@archlinux.org>
Things must have gotten stricter with GCC 4.3 on the '%zd' printf string and
this is the first I've tried to compile there. Fix the problem by using
size_t instead of int.
Signed-off-by: Dan McGee <dan@archlinux.org>
Pulled two loops out of _alpm_remove_prepare and gave them their own
functions.
Signed-off-by: K. Piche <kevin@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
We no longer expose any of libdownload in our public functions, so no need
to include this header anymore.
Signed-off-by: Dan McGee <dan@archlinux.org>
There were a few issues with this code:
1. We already had an open fd to a file, but never used it to our benefit.
Use the libarchive convienence method to write the current file contents
straight to a file descriptor.
2. The real problem cropped up on Windows where the locking semantics caused
the old way of extraction to fail because we had an open file descriptor.
By using the file descriptor and closing it ASAP, we prevent these
failures.
Signed-off-by: Dan McGee <dan@archlinux.org>
Add a new --disable-internal-download flag to configure allowing the
internal download code to be skipped. This will be helpful on platforms that
currently don't support either libdownload or libfetch (such as Cygwin) and
for just compiling a lighter weight pacman binary.
This was made really easy by our recent refactoring of the download code
into separate internal and external functions, as well as some error code
cleanup.
Signed-off-by: Dan McGee <dan@archlinux.org>
We correctly closed the logfile stream when recalling set_logfile, but did
not NULL out the dead pointer once we did this. Fix the problem which was
the cause of FS#10056.
Signed-off-by: Dan McGee <dan@archlinux.org>
After the libarchive upgrade from 2.4.12 to 2.4.14, our usage of
archive_entry_pathname became dangerous. We were using the result of that
function even after calls to archive_entry_set_pathname.
With 2.4.14, the entryname becomes wrong after these calls, and so all the
future use of entryname are bogus. entryname is used quite a lot for
logging, so that's not so bad. But it's also used for the backup handling,
so that's not very cool. For example, reinstalling a package with backup
entries will erase all the md5 entries from the DB, because they won't be
found back.
entryname is now a static string so that we can easily keep the result of
archive_entry_pathname.
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
[Dan: fixed version numbers in commit message]
Signed-off-by: Dan McGee <dan@archlinux.org>
This should be a notable speed-up (apart from kernel cache).
Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Dan McGee <dan@archlinux.org>
With the addition of the archive_fgets() function, we can now skip the temp
file usage in pkg_load/parse_descfile that was not needed. This has a nice
benefit of probably being both faster, reducing code, and getting rid of
"expensive" file operations.
Signed-off-by: Dan McGee <dan@archlinux.org>
