Support string filtering on top of semver tag filtering

[xelalexv]

Support string filtering on top of semver tag filtering

[xelalexv]

I'm still on vacation, but could probably create a new release next week.

[xelalexv]

released with 0.4.3 just now

[xelalexv]

How about using regex: 14\.(1[5-9]|[2-9][0-9])\.[0-9]+-(alpine|buster) for the second expression? This should catch everything >= 14.15.x? Note the added + to catch multi-digit patch levels.

BTW, semver tag filters will (probably) not work with these kind of tags, since the lib used for this expects clean semver strings, and at most tolerates a v at the start. We may have to look into removing prefixes/suffixes such as architectures and platforms to improve on this.

I double checked and it turns out that the blang semver lib does accept suffixes as found in your use case, as long as the string starts with a full major.minor.patch semver. But still won't help in this particular case, so the suggested regex above still stands.

[xelalexv]

An idea for improvement: If we introduce a tag filter prune:, which is a regex that gets applied last on the result of tag filtering, then your use case could be written like this:

tags:
- semver: >=12.19.x || >=14.15.x
- prune: .+-(alpine|buster)

[Junkern]

Oh, this looks really neat and looks exactly what I need.
One suggestion: Could it be named only insteead of prune? Makes it more explicit what is being done with that filter. On the first sight it reads like all images which apply to .+-(alpine|buster) are being removed from the result set.
Do you need help in reviewing the https://github.com/xelalexv/dregsy/compare/issue72 branch?

[xelalexv]

I wasn't sure myself about prune, I agree that it may be a bit misleading. How about keep?

[Junkern]

keep also sounds like a really good option, even better than only

[xelalexv]

implemented with PR #77

[Junkern]

Thanks a lot @xelalexv !
Is there an ETA on a new release?