I am looking for some help (an example would be excellent) figuring out how to just acquire a list of package names for a certain version of Ubuntu. For example, using the web interface I could simply search in the Ubuntu section of Launchpad for a package, and it will give me all of the sub-packages (components?), e.g.: https://launchpad.net/ubuntu/+source/linux-meta
What I am looking for is a list of upstream packages + all of their sub-packages and all of their dependencies. I'm currently just interested in Ubuntu-17.10-desktop, but I do have an eye toward automation in the future.
Unfortunately the list of provided examples is pretty sparse, so I'm having trouble understanding which function to use.
It took me a while to get here, but this is the code I have so far, which I hope is moving me in the right direction:
import pandas as pd
from launchpadlib.launchpad import Launchpad
import launchpadlib as lp
launchpad = Launchpad.login_anonymously('just testing', 'production',
cachedir, version='devel')
ubuntu = launchpad.distributions['ubuntu']
series = ubuntu.getSeries(name_or_version='17.10')
archive = ubuntu.main_archive
arch_series = series.getDistroArchSeries(archtag='amd64')
manifest = pd.DataFrame(columns=['asset','pkg_set'])
pkgs = launchpad.packagesets
for i in range(34):
name = pkgs.getBySeries(distroseries=series)[i].name
sources_incl = pkgs.getBySeries(distroseries=series)[i].getSourcesIncluded()
new_man=pd.DataFrame({'asset':sources_incl,'pkg_set':[name]*len(sources_incl)})
manifest = manifest.append(new_man,ignore_index=True)
manifest=manifest.sort_values(by=['asset'])
Ideally I should be able to modify this script slightly to change to other Ubuntu series, particularly newer versions. However, I am a novice in the field of API JSON fetching, so I could use some help.
For instance, knowing that there are 34 package sets in Artful I came to through experimentation. It would be nice if there were some property I could fetch to know that answer for a given series.
In addition, I would like to be able to fetch version numbers for each source, specific to Artful, but I can't seem to figure out how to do that except through .getPublishedSources, i.e.:
name = 'acpid'
comp = archive.getPublishedSources(source_name=name,distro_series=series)[0].component_name
source = archive.getPublishedSources(source_name=name,distro_series=series)[0].source_package_name
version = archive.getPublishedSources(source_name=name,distro_series=series)[0].source_package_version
It does not seem to be allowed to fetch the entirety of the database, instead you must specify a source_name.
