Detect and warn about incorrectly used ignore-comments #325
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Thank you for the PR 🙇 . I think it makes sense to emit warning for avoiding unexpected behavior. It would be beneficial as long as existing behavior is maintained (just providing warning and doesn't throw error?) |
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@parroty Thanks for the feedback. What about the coverage? Should we ignore coverage if there is only |
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@RKushnir I believe it's already a large change, so I am wondering taking a reasonably small step (while maintaining existing behavior) would be an option? (rather than extending coverage?), but looking for your opinion, too. |
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@parroty I agree. I think it's already a good progress if we just show the warnings. I'll try to update the PR soon. Later we can add some config option e.g. |
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@parroty I updated the PR: reverted the behavior change as we discussed, added more tests and a changelog entry. Unless I missed something, it should be ready now. Thank you for your help. |
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Thanks and very sorry about taking time to merge. I'll try merge and release during this week 🙇 . |
tonyrud
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* Cobertura now handles defprotocol and defimpl definitions (parroty#306) * Cobertura now handles defprotocol and defimpl definitions * Cobertura, catch all if module type is unknown * Bump version and update CHANGELOG * Add Cobertura docs to README.md (parroty#312) * Update Elixir requirement to 1.11+ (parroty#316) * Update Elixir requirement to 1.11+ * Update deps * Replace hackney with httpc (parroty#311) * Replace hackney with httpc * SSL options * FIXUP * Cache fixed * Aaaah, caching again * FIXUP * Add missing apps to :extra_applications * Add better check for :public_key * Bump version and update CHANGELOG * Fix lcov 2.0 source file handling (parroty#315) Prior to 2.0 being released, `genhtml` was much better about handling source files from the following paths: * `test/support/some_helper.ex` * `lib/foo/bar.ex` But after 2.0 was released, when rendering with `genhtml` the paths would be mangled and look like the following: * `test/support/test/support/some_helper.ex` * `lib/foo/lib/foo/bar.ex` I have tried in vain with many permutations of `--prefix` when running `genhtml` but the ultimate fix that made all of this go away was using the absolute path for the source file (`SF`). * Update CHANGELOG * Remove erroneous line in ExCoveralls.poster (parroty#318) * Import `.coverdata` after test run and improve documentation (parroty#309) * Import `.coverdata` after test run and improve docs * Update README table of contents * Update README based on review suggestion Co-authored-by: Alberto Sartori <alberto.sartori.as@gmail.com> --------- Co-authored-by: Alberto Sartori <alberto.sartori.as@gmail.com> * Update CHANGELOG * Accept custom http options (parroty#319) * Accept custom http options * Add HTTP options docs to README * Bump version and update CHANGELOG * Always floor coverage instead of rounding (parroty#310) * Always floor coverage instead of rounding We do not want to report a 100% coverage when there are lines that are not covered. * Add option to restore previous ceil coverage behaviour * Bump version and update CHANGELOG * Update README examples (parroty#320) * Use explicit steps to remove 1.16 deprecation warning (parroty#322) * Update CHANGELOG and bump version * Detect and warn about incorrectly used ignore-comments (parroty#325) * Detect and warn about incorrectly used ignore-comments Resolves parroty#197. * Keep existing ignoring behavior * Improve formatting * Test more ignore-related warnings * Remove warning in the case of ignore-next-line at the EOF * Test the warning output * Add a changelog entry * Adjust test descriptions --------- Co-authored-by: Roman <205906+RKushnir@users.noreply.github.com> * Fix Elixir 1.17 single-quoted string warning (parroty#327) * Bump version and update CHANGELOG * add missing step for Cobertura's range (parroty#329) Without this change, the output is full of warnings such as ``` warning: negative steps are not supported in String.slice/2, pass 44..-1//1 instead ``` * Update CHANGELOG and version * Revert "add missing step for Cobertura's range (parroty#329)" (parroty#330) This reverts commit 00a96c4. * Revert version change * Update Range to use function syntax (parroty#332) * add missing step for Cobertura's range * Update Range to use function syntax * run tests in elixir 1.17 * fix test with relative path --------- Co-authored-by: parroty <parroty@users.noreply.github.com> * Update CHANGELOG and version --------- Co-authored-by: Rodrigue Villetard <rodrigue@villetard.tech> Co-authored-by: parroty <parroty@users.noreply.github.com> Co-authored-by: Artem Solomatin <artem00298@gmail.com> Co-authored-by: Andrea Leopardi <an.leopardi@gmail.com> Co-authored-by: Matthew Johnston <warmwaffles@gmail.com> Co-authored-by: Zach Allaun <zach.allaun@gmail.com> Co-authored-by: Alberto Sartori <alberto.sartori.as@gmail.com> Co-authored-by: Victor Rodrigues <rodrigues@users.noreply.github.com> Co-authored-by: gitneko <67227083+gitneko@users.noreply.github.com> Co-authored-by: Roman <RKushnir@users.noreply.github.com> Co-authored-by: Roman <205906+RKushnir@users.noreply.github.com> Co-authored-by: Hans Krutzer <git@pixelspaceships.com> Co-authored-by: Juan Peri <eternoperegrino@gmail.com> Co-authored-by: Kenta Nakase <1172471+parroty@users.noreply.github.com>
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This PR addresses the issue of accidentally ignoring too much code coverage. The issue happens when you add
coveralls-ignore-startbut forget to add the corresponding-ignore-stop. With this change, excoveralls is going to discard the un-closed ignore-block (i.e. not ignore the coverage) and give you a warning, so that you can more easily spot the mistake.Besides the main goal, this change also adds a few other useful warnings to let you know about redundant or invalid ignore-comments, which I previously outlined. This is an optional part, and we could remove it or split it into a separate PR if that would be more appropriate.
The most interesting part for review is
ignore.exandignore_test.exs.Here's what the warnings look like in the console output
The PR is unfinished, it's missing some of the final touches: some tests, changelog entry, version bump, readme update. But it's feature-complete and so I would love to get early feedback, in case I need to change anything before I polish it. I'm looking forward to your thoughts and suggestions.Resolves #197.