Merge ubuntu-archive-tools:drop-obsolete-series-references into ubuntu-archive-tools:main

[Steve Langasek]

[Steve Langasek (vorlon)]

Brian, requesting your review here specifically for the changes to package-subscribers, because there's a comment that "very few lucid packages are supported" but the following code listed lucid, precise, and trusty; so I wasn't clear if this list should be updated to match the current set of ESM archs (i.e.: add xenial)

[Steve Langasek (vorlon)]

@Brian ping

[Brian Murray (brian-murray)]

The package subscriber changes are no longer relevant because the code is currently:

 97 for series in ubuntu.series:
 98 # Releases in ESM have their own team responsible
 99 if series.name in ('trusty', 'xenial', 'bionic'):
100 continue

Unmerged commits

22a3fda... by Steve Langasek on 2023-03-11

Drop stale references to obsolete series

Don't carry code forever to support obsolete series that no longer exist in
the archive.

Also, update references to the set of series that are in ESM.

diff --git a/checkrdepends b/checkrdepends
index 6813d26..7b874cb 100755
--- a/checkrdepends
+++ b/checkrdepends
@@ -50,18 +50,14 @@ def primary_arches(suite):
 
 
 def ports_arches(suite):
-    if suite == 'lucid':
-        return ('armel', 'ia64', 'powerpc', 'sparc')
-    elif suite == 'precise':
-        return ('armel', 'armhf', 'powerpc')
-    elif suite in ('14.09', '14.09-factory'):
-        return ('armhf',)
-    elif suite in ('trusty', 'vivid', 'wily'):
+    elif suite == 'trusty':
         return ('arm64', 'armhf', 'powerpc', 'ppc64el')
-    elif suite in ('xenial', 'yakkety'):
+    elif suite == 'xenial':
         return ('arm64', 'armhf', 'powerpc', 'ppc64el', 's390x')
-    else:
+    elif suite == 'bionic':
         return ('arm64', 'armhf', 'ppc64el', 's390x')
+    else:
+        return ('arm64', 'armhf', 'ppc64el', 'riscv64', 's390x')
 
 
 def read_sources(path):
diff --git a/package-subscribers b/package-subscribers
index 4925119..d0cf14d 100755
--- a/package-subscribers
+++ b/package-subscribers
@@ -96,7 +96,7 @@ def main():
     options.suites = []
     for series in ubuntu.series:
         # very few lucid packages are supported
-        if series.name in ('lucid', 'precise', 'trusty'):
+        if series.name in ('trusty'):
             continue
         if series.active:
             options.suites.append(series.name)
diff --git a/sru-release b/sru-release
index 47d0e2e..b9ba391 100755
--- a/sru-release
+++ b/sru-release
@@ -507,7 +507,7 @@ if __name__ == '__main__':
                         'WARNING: {} not found in packages for kernel {}\n'.format(
                         package, ks_source.name))
 
-    if ks_source is None and release in ('precise', 'trusty'):
+    if ks_source is None and release in ('trusty', 'xenial'):
         sys.stdout.write(
             'Called for {}; assuming kernel ESM publication\n'.format(release))
         options.esm = True