...instead of running apk every time to get the list of installed
packages and their versions. The internal package database from
apk has the same format, as the extracted APKINDEX file (except
that it has more key-value pairs, which we ignore/do not need
right now). So the APKINDEX code has been extended to parse both
tar-packed APKINDEX files and regular text files in the APKINDEX
format.
This is required for #108, for a better detection of outdated
packages (because the internal package database saves the
package's timestamp, too). A nice benefit is, that this is faster
than calling apk every time and it doesn't fill up the log as much.
I've also used this improved function for determining the apk
version (for the outdated version check), and I've deleted
pmb.parse.other.package_split(), as it is not needed anymore.
* New commandline parameter --mirror-pmOS, where the binary repository
URL for postmarketOS can be specified (empty by default as of now,
this will be filled with the real URL once the repo works)
* Do not build packages, when they are in the binary repository and
the version of the package in the binary repository is up-to-date.
* Add a testcase for pmb.build.is_necessary().
When an APKINDEX contained a package with multiple versions,
pmbootstrap did not use the last version to determine if the
package is out of date (regression from af8c9fcf5b).
Previously, it was only possible to get information about one
package inside the APKINDEX at a time.
This is needed for #64 to verify the APKINDEX.
Please note, that this implementation is actually slower, than
the previous one. But the code is more readable and it makes
caching possible (which will speed up the APKINDEX massively,
especially for the buildinfo.json file generation!)
