[Buildroot] [git commit branch/2021.02.x] support/scripts/pkg-stats: use the new 'stable_versions' field of release-monitoring.org

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=d9c113d31155ad41d7c067e0a56d0907ae4461ad
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2021.02.x

The pkg-stats script queries release-monitoring.org to find the latest
upstream versions of our packages. However, up until recently,
release-monitoring.org had no notion of stable
vs. development/release-candidate versions, so for some packages the
"latest" version was in fact a development/release-candidate version
that we didn't want to package in Buildroot.

However, in recent time, release-monitoring.org has gained support for
differentiating stable vs. development releases of upstream
projects. See for example
https://release-monitoring.org/project/10024/ for the glib library,
which has a number of versions marked "Pre-release".

The JSON blurb returned by release-monitoring.org has 3 relevant
fields:

 - "version", which we are using currently, which is a string
   containing the reference of the latest version, including
   pre-release.

 - "versions", which is an array of strings listing all versions,
   pre-release or not.

 - "stable_versions", which is an array of string listing only
   non-pre-release versions. It is ordered newest first to oldest
   last.

So, this commit changes from using 'version' to using
'stable_versions[0]'.

As an example, before this change, pkg-stats reports that nfs-utils
needs to be bumped to 2.5.5rc3, while after this patch, it reports
that nfs-utils is already at 2.5.4, and that this is the latest stable
version (modulo an issue where Buildroot has 2.5.4 and
release-monitoring.org has 2-5-4, this will be addressed separately).

Note that part of this change was already done in commit f7b0e0860, but
it was incomplete.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
(cherry picked from commit 11efcb39b2904512d429a328c7ec3c99246f94f7)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 support/scripts/pkg-stats | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/support/scripts/pkg-stats b/support/scripts/pkg-stats
index 26cba1479e..b182fce605 100755
--- a/support/scripts/pkg-stats
+++ b/support/scripts/pkg-stats
@@ -496,13 +496,13 @@ async def check_package_get_latest_version_by_guess(session, pkg, retry=True):
 
             data = await resp.json()
             # filter projects that have the right name and a version defined
-            projects = [p for p in data['projects'] if p['name'] == pkg.name and 'version' in p]
+            projects = [p for p in data['projects'] if p['name'] == pkg.name and 'stable_versions' in p]
             projects.sort(key=lambda x: x['id'])
 
             if len(projects) > 0:
                 check_package_latest_version_set_status(pkg,
                                                         RM_API_STATUS_FOUND_BY_PATTERN,
-                                                        projects[0]['version'],
+                                                        projects[0]['stable_versions'][0],
                                                         projects[0]['id'])
                 return True