Check release date in AutoFreezer

[HebaruSan]

Problems

The AutoFreezer from #96 has itself been in cryofreeze due to mass-update changes:

• Extract locales from downloads CKAN#2760
• Add owners of parent GitHub repos to authors CKAN#2922
• Get org members as authors, time-sort authors, sort tags to middle CKAN#2942
• Netkan warning for archived repos, set bugtracker for GitHub CKAN#3061
• Add tags to the 32 most downloaded mods NetKAN#7542 through Tag forty-third group of mods NetKAN#7598

It uses ModStatus.last_indexed to detect idle mods, so anytime we re-index a mod due to a change in how we generate metadata, we effectively fool the AutoFreezer into thinking that the mod was just updated. In reality we should be checking when the most recent release came out.

Background

After KSP-CKAN/CKAN#3059, we will be capturing mods' release dates in metadata. They will pass through the Indexer on their way to CKAN-meta.

Changes

• Now Ckan parses release_date into a datetime object
• Now ModStatus has a release_date property
• Now the Indexer copies Ckan.release_date into ModStatus.release_date
• Now the AutoFreezer's _too_old check looks at release_date if it's defined and falls back to last_indexed otherwise

This way we will be able to detect idle mods again.

[techman83]

That's a pretty broad catch, probably ok here, but can lead to hiding errors we didn't expect.

[HebaruSan]

Yeah, that's intentional. Don't want the whole thing to come to a screeching halt because there's some problem parsing a date string. If that happens, it'll just leave the string in the dict, which is fine.

[techman83]

Looks good to me!

[HebaruSan]

Waiting on KSP-CKAN/CKAN#3059, which is waiting on KSP-SpaceDock/SpaceDock#265 to go live in production (currently merged to alpha).

EDIT: KSP-SpaceDock/SpaceDock#265 is live in beta, expected to go to prod soon-ish.

• https://beta.spacedock.info/api/mod/2

[HebaruSan]

Those PRs are now merged, so we're about to have a big wave of release_date getting set. I want to watch how that goes before merging this.

... so far so good. Going to merge all the staged mods first.