* refactor zypper module
Cleanup:
* remove mention of old_zypper (no longer supported)
* requirement goes up to zypper 1.0, SLES 11.0, openSUSE 11.1
* allows to use newer features (xml output)
* already done for zypper_repository
* use zypper instead of rpm to get old version information, based on work by @jasonmader
* don't use rpm, zypper can do everything itself
* run zypper only twice, first to determine current state, then to apply changes
New features:
* determine change by parsing zypper xmlout
* determine failure by checking return code
* allow simulataneous installation/removal of packages (using '-' and '+' prefix)
* allows to swap out alternatives without removing packages depending
on them
* implement checkmode, using zypper --dry-run
* implement diffmode
* implement 'name=* state=latest' and 'name=* state=latest type=patch'
* add force parameter, handed to zypper to allow downgrade or change of vendor/architecture
Fixes/Replaces:
* fixes#1627, give changed=False on installed patches
* fixes#2094, handling URLs for packages
* fixes#1461, fixes#546, allow state=latest name='*'
* fixes#299, changed=False on second install, actually this was fixed earlier, but it is explicitly tested now
* fixes#1824, add type=application
* fixes#1256, install rpm from path, this is done by passing URLs and paths directly to zypper
* fix typo in package_update_all
* minor fixes
* remove commented code block
* bump version added to 2.2
* deal with zypper return codes 103 and 106
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