[Kinflou]

The cli side of ComlineProject/core#102. Core's part is in ComlineProject/core#217.

comline fix [--edition N] [--dry-run]

• Applies the fixes core attaches to its edition diagnostics:
  • a config.idp without specification_version gets the line;
  • each use of a keyword or type the package's edition deprecates or removes is replaced, when it has a replacement;
  • a use without one is listed, rendered with its span, for the author to change by hand.
• --edition N:
  • checks and fixes the schemas under edition N, then moves config.idp to N;
  • if N removes a word that's still used and has no replacement, it exits 1 and the package stays on its edition;
  • moving back to an earlier edition is refused, and an edition this Comline doesn't know is refused with the list it knows.
• --dry-run lists the fixes and writes nothing.
• Generator-agnostic. It walks src/**/*.ids and edits only config.idp and schemas.

Also changed: changes.rs now says an edition move bumps nothing by itself, matching core.

Pins: core b933209, generation bb89a51, comline-rust de0b8e5, comline-typescript 9952c5a. comline-doc-markdown and comline-doc-html move to generation bb89a51 too. They reach core through codegen, so leaving them behind split core into two crates (E0308).

Tested

• Unit tests: set_edition replaces only the number, schemas are found in nested folders in order, and several fixes apply in one file.
• By hand, on a comline new package with the line removed:
  • build fails with edition::missing and the fix;
  • fix --dry-run writes nothing;
  • fix adds the line, and running it again finds nothing to fix;
  • --edition 2 is refused;
  • build then passes.
• Full suite: cargo test passes on the final pins, 146 integration tests and 21 unit tests.

Merge order: after core#217 and the generator and generation PRs. ComlineProject/docs#160 documents the command, and its CLI drift check needs this merged first.

Refs ComlineProject/core#102