Add exempt-issue-types option for blocklist filter by issue type

[veryfancy]

Description:

Introduce a parameter exempt-issue-types that ensures that issues from a list of types will not be marked stale or closed. This option applies only to issues; pull requests are always ignored by the issue-type filter.

This is a blocklist counterpart to the allowlist option only-issue-types added in:

• Filter based on issue type #1187

Related issue:

• Support exempt-issue-types option #1293

Check list:

• Mark if documentation changes are required.
• Mark if tests were added or updated to cover the changes.

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[maxwxyz]

@luketomlinson this is similar to #1255

[Bibo-Joshi]

Hi. As a heads-up, I see that main.ts was not updated, which will probably lead to the input being ignored. See #1298, were I discovered that for only-issue-types :)

[veryfancy]

@Bibo-Joshi Thank you for the heads-up. I updated main.ts to include input reading for exemptIssueTypes. I included onlyIssueTypes as well, in case this merges first (and because I suspect it might prevent a merge conflict if your PR merges first).

[Bibo-Joshi]

Sweet :)

[moritzheiber]

@veryfancy heads-up, #1298 was just merged, so this will need conflict resolution

[veryfancy]

Resolved conflicts. 🚀

[veryfancy]

Bump to this. 🙏

[veryfancy]

Bump to this. 🙏

[laureanobrs]

Bump. Currently, there’s no way to process untyped issues together with only certain typed issues. This feature would make that possible. 🙏

[TNATALI]

Bump this ya'll. Literally we are waiting on this PR to be merged and available. Would do a ton of good for the community.

[veryfancy]

Fixed conflict with dist.js and updated behavior to keep it from filtering pull requests (to match the fix from #1338).

[v-chiranjib-swain]

@veryfancy , thanks for this update. I tested the branch locally and with real Issue Types, including its interaction with only-issue-types, and it works as expected.

Could we document that exempt-issue-types takes precedence when both lists contain the same type and add a regression test for that case? This would make the behavior clear and prevent future regressions.

[veryfancy]

@v-chiranjib-swain Thanks for testing this. I documented the precedence and added a regression test covering a type present in both lists.