Hopefully we've finally arrived at package handling nirvana, or at least
this commit will get us a heck of a lot closer. The former method of getting
the depends list for a package was the following:
1. call alpm_pkg_get_depends()
2. this method would check if the package came from the cache
3. if so, ensure our cache level is correct, otherwise call db_load
4. finally return the depends list
Why did this suck? Because getting the depends list from the package
shouldn't care about whether the package was loaded from a file, from the
'package cache', or some other system which we can't even use because the
damn thing is so complicated. It should just return the depends list.
So what does this commit change? It adds a pointer to a struct of function
pointers to every package for all of these 'package operations' as I've
decided to call them (I know, sounds completely straightforward, right?). So
now when we call an alpm_pkg_get-* function, we don't do any of the cache
logic or anything else there- we let the actual backend handle it by
delegating all work to the method at pkg->ops->get_depends.
Now that be_package has achieved equal status with be_files, we can treat
packages from these completely different load points differently. We know a
package loaded from a zip file will have all of its fields populated, so
we can set up all its accessor functions to be direct accessors. On the
other hand, the packages loaded from the local and sync DBs are not always
fully-loaded, so their accessor functions are routed through the same logic
as before.
Net result? More code. However, this code now make it roughly 52 times
easier to open the door to something like a read-only tar.gz database
backend.
Are you still reading? I'm impressed. Looking at the patch will probably be
clearer than this long-winded explanation.
Signed-off-by: Dan McGee <dan@archlinux.org>
[Allan: rebase and adjust]
Signed-off-by: Allan McRae <allan@archlinux.org>
The combination of tabs and spaces is annoying in any editor that
does not use a tab width of 2 spaces.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Follow the HACKING guidelines and always use != 0 or == 0 rather
than negation within conditional statements to improve clarity.
Most of these are !strcmp usages which is the example of what not
to do in the HACKING document.
Signed-off-by: Allan McRae <allan@archlinux.org>
After our recent screwup with size_t and ssize_t in the download code, I
found the `-Wsign-conversion` flag to GCC to see if we were doing anything
else boneheaded. I didn't find anything quite as bad, but we did have some
goofups- most of our public unsigned methods would return -1 on error, which
is a bit odd in an unsigned context.
Signed-off-by: Dan McGee <dan@archlinux.org>
After commit 774c252 the --debug output shows 5-6 "syntax error..." lines
for each package. After this patch pacman recognizes makepkgopt as a valid
key, but doesn't do anything.
Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Dan McGee <dan@archlinux.org>
Some previous commits apparently broke the get_filename function for package
loaded with pkg_load (on a -Qip operation) because this field was no longer
filled. Now pkg_load fills it.
But the -Qip operation needs to be run like this : -Qip <filename>, so the
filename is already known. There is no need to display it again.
Besides, on a normal -Qi operation, the filename is not displayed either
because this information is not stored in the local database.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
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>
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>
