Make it possible to individually override openssl, zlib and libfetch
cflags and linker flags. This makes it possible to build apk-tools
without having pkg-config installed.
it's only used to speed up things, and having it non-existant
is not a fatal error - all included things in index will be
passed in command line anyway
which will delete any .apk package on output directory that were
not downloaded by fetch
this allows apk fetch to incrementally build repositories for
binary images
- self-conflicts when the exact same version of a name is provided
twice is now properly detected and diagnozed
- don't print redundant satisfies diagnostic
Implement --no-cache. The index is read directly from network and not
cached. This is useful for docker, where you install a set of packages
and directly after purge the cache. (see
1fc9e59d16/builder/scripts/apk-install)
fixes#4905
preserve [am]time for all packages and indexes. this fixes the caching
error that 'apk update' is after new index is generated, but before
the used mirror is synchronized. this caused local apkindex timestamp
to be newer than file in mirror, when in fact it was outdated index.
this also fixes fetched files to have build timestamp so that files
going to .iso or custom images have proper timestamps (rsync with
appropriate --modify-window now works)
the problem is that var/lock is on root installs symlink to /run/lock
(on tmpfs) and does not exist if doing chroot() to that root. fixes
apk to work when chrooted to existing rootfs install.
resolve reverse dependencies after all packages have been loaded,
and avoid traversing the reverse name lists. now that we use
automatic virtual packages (soname, pkg-config, etc.) the reverse
dependency chains can become considerable longer than what it was
when the rdependency construction code was originally written.
In practice this should fix to e.g. not wipe out /etc/apk/world if
final flush to /etc/apk/world.new fails.
This was prompted by an incident the other day where I ran the root
partition of an Alpine box out of space using 'apk add', and apk
helpfully wiped the contents of /etc/apk/world at the same time.
It might be tricky to try to reproduce exactly the same failure,
but from an examination of the code, setting 'rc' before the final
call to fdo_flush rather than after is one possible cause of this
behavior. (If the entire contents of /etc/apk/world.new are buffered,
and all get written out in the final fdo_flush call, and that call
fails, fdo_close will still happily rename /etc/apk/world.new to
/etc/apk/world.)
the security implications are not as high as compared to regular
tar/unzip archiver. this is because you are anyway trusting
the package to install files anywhere in the filesystem.
this serves rather as a sanity to check against errors in created
package.
fetch_maperror() translates error codes returned by libfetch to our error
codes. Handle those in apk_error_str(), returning error messages which
advise the user of the most likely fix.
A custom error code, EAPKSTALEINDEX, has been added for cases where
retrieving a package fails due to a HTTP error 404 or similar.
[TimoT: add also EAPKBADURL, as well as organize a bit better where the
EAPKSTALEINDEX is generated]
Timo Teräs