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fix: throw error for first unmatched pattern #16533

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merged 2 commits into from Nov 14, 2022
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Prerequisites checklist

What is the purpose of this pull request? (put an "X" next to an item)

[ ] Documentation update
[x] Bug fix (template)
[ ] New rule (template)
[ ] Changes an existing rule (template)
[ ] Add autofix to a rule
[ ] Add a CLI option
[ ] Add something to the core
[ ] Other, please explain:

Addresses #16462 (review).

When there are multiple unmatched patterns, both ESLint and FlatESLint throw an error containing information about only one pattern. The error can be either that the pattern doesn't match any files or that it matches only ignored files.

The difference is that ESLint always throws an error for the very first unmatched pattern, while FlatESLint first checks if there are patterns that match ignored files.

To reproduce, run eslint "doesnotexist/*.js" "tests/fixtures/*.js".

ESLint:

Oops! Something went wrong! :(

ESLint: 8.27.0

No files matching the pattern "doesnotexist/*.js" were found.
Please check for typing mistakes in the pattern.

FlatESLint:

Oops! Something went wrong! :(

ESLint: 8.27.0

You are linting "tests/fixtures/*.js", but all of the files matching the glob pattern "tests/fixtures/*.js" are ignored.

If you don't want to lint these files, remove the pattern "tests/fixtures/*.js" from the list of arguments passed to ESLint.

If you do want to lint these files, try the following solutions:

* Check your .eslintignore file, or the eslintIgnore property in package.json, to ensure that the files are not configured to be ignored.
* Explicitly list the files from this glob that you'd like to lint on the command-line, rather than providing a glob as an argument.

It's an error either way, but I think ESLint behavior is preferable as it would be surprising for users that after fixing or removing the reported pattern, eslint in the next run reports an error for a preceding pattern. Checking only the first pattern also simplifies the code a bit, and is better for performance in this, albeit exceptional, scenario.

What changes did you make? (Give an overview)

I changed the code in eslint-helpers to always check only the first unmatched pattern.

Is there anything you'd like reviewers to focus on?

@eslint-github-bot eslint-github-bot bot added triage An ESLint team member will look at this issue soon bug ESLint is working incorrectly labels Nov 10, 2022
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@snitin315 snitin315 added accepted There is consensus among the team that this change meets the criteria for inclusion and removed triage An ESLint team member will look at this issue soon labels Nov 11, 2022
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LGTM. I'll leave it open in case someone else wants to review it.

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Code and result looks okay, but I think may need a bit of refactoring for clarity.

lib/eslint/eslint-helpers.js Outdated Show resolved Hide resolved
* any files and `errorOnUnmatchedPattern` is true.
* @throws {AllFilesIgnoredError} If there is a pattern that matches files
* when there are no ignores.
* @param {Array<string>} options.unmatchedPatterns A non-empty array of glob patterns
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If we only need the first item, why pass the whole array?

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I thought about passing in just the first item, but in the end I decided that it might make more sense to just pass all the data from the search and let throwErrorForUnmatchedPatterns construct the error from that, so that all the logic about what needs to be checked further and what information will the error contain is in throwErrorForUnmatchedPatterns.

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Fair enough.

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>
nzakas
nzakas approved these changes Nov 14, 2022
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LGTM

@nzakas nzakas merged commit 9432b67 into main Nov 14, 2022
21 checks passed
@nzakas nzakas deleted the first-unmatched-pattern branch November 14, 2022 19:20
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this pull request Nov 28, 2022
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [eslint](https://eslint.org) ([source](https://github.com/eslint/eslint)) | devDependencies | minor | [`8.27.0` -> `8.28.0`](https://renovatebot.com/diffs/npm/eslint/8.27.0/8.28.0) |

---

### Release Notes

<details>
<summary>eslint/eslint</summary>

### [`v8.28.0`](https://github.com/eslint/eslint/releases/tag/v8.28.0)

[Compare Source](eslint/eslint@v8.27.0...v8.28.0)

#### Features

-   [`63bce44`](eslint/eslint@63bce44) feat: add `ignoreClassFieldInitialValues` option to no-magic-numbers ([#&#8203;16539](eslint/eslint#16539)) (Milos Djermanovic)
-   [`8385ecd`](eslint/eslint@8385ecd) feat: multiline properties in rule `key-spacing` with option `align` ([#&#8203;16532](eslint/eslint#16532)) (Francesco Trotta)
-   [`a4e89db`](eslint/eslint@a4e89db) feat: `no-obj-calls` support `Intl` ([#&#8203;16543](eslint/eslint#16543)) (Sosuke Suzuki)

#### Bug Fixes

-   [`c50ae4f`](eslint/eslint@c50ae4f) fix: Ensure that dot files are found with globs. ([#&#8203;16550](eslint/eslint#16550)) (Nicholas C. Zakas)
-   [`9432b67`](eslint/eslint@9432b67) fix: throw error for first unmatched pattern ([#&#8203;16533](eslint/eslint#16533)) (Milos Djermanovic)
-   [`e76c382`](eslint/eslint@e76c382) fix: allow `* 1` when followed by `/` in no-implicit-coercion ([#&#8203;16522](eslint/eslint#16522)) (Milos Djermanovic)

#### Documentation

-   [`34c05a7`](eslint/eslint@34c05a7) docs: Language Options page intro and tweaks ([#&#8203;16511](eslint/eslint#16511)) (Ben Perlmutter)
-   [`3e66387`](eslint/eslint@3e66387) docs: add intro and edit ignoring files page ([#&#8203;16510](eslint/eslint#16510)) (Ben Perlmutter)
-   [`436f712`](eslint/eslint@436f712) docs: fix Header UI inconsistency ([#&#8203;16464](eslint/eslint#16464)) (Tanuj Kanti)
-   [`f743816`](eslint/eslint@f743816) docs: switch to wrench emoji for auto-fixable rules ([#&#8203;16545](eslint/eslint#16545)) (Bryan Mishkin)
-   [`bc0547e`](eslint/eslint@bc0547e) docs: improve styles for versions and languages page ([#&#8203;16553](eslint/eslint#16553)) (Nitin Kumar)
-   [`6070f58`](eslint/eslint@6070f58) docs: clarify esquery issue workaround ([#&#8203;16556](eslint/eslint#16556)) (Milos Djermanovic)
-   [`b48e4f8`](eslint/eslint@b48e4f8) docs: Command Line Interface intro and tweaks ([#&#8203;16535](eslint/eslint#16535)) (Ben Perlmutter)
-   [`b92b30f`](eslint/eslint@b92b30f) docs: Add Rules page intro and content tweaks ([#&#8203;16523](eslint/eslint#16523)) (Ben Perlmutter)
-   [`1769b42`](eslint/eslint@1769b42) docs: Integrations page introduction ([#&#8203;16548](eslint/eslint#16548)) (Ben Perlmutter)
-   [`a8d0a57`](eslint/eslint@a8d0a57) docs: make table of contents sticky on desktop ([#&#8203;16506](eslint/eslint#16506)) (Sam Chen)
-   [`a01315a`](eslint/eslint@a01315a) docs: fix route of japanese translation site ([#&#8203;16542](eslint/eslint#16542)) (Tanuj Kanti)
-   [`0515628`](eslint/eslint@0515628) docs: use emoji instead of svg for deprecated rule ([#&#8203;16536](eslint/eslint#16536)) (Bryan Mishkin)
-   [`68f1288`](eslint/eslint@68f1288) docs: set default layouts ([#&#8203;16484](eslint/eslint#16484)) (Percy Ma)
-   [`776827a`](eslint/eslint@776827a) docs: init config about specifying shared configs ([#&#8203;16483](eslint/eslint#16483)) (Percy Ma)
-   [`5c39425`](eslint/eslint@5c39425) docs: fix broken link to plugins ([#&#8203;16520](eslint/eslint#16520)) (Ádám T. Nagy)
-   [`c97c789`](eslint/eslint@c97c789) docs: Add missing no-new-native-nonconstructor docs code fence ([#&#8203;16503](eslint/eslint#16503)) (Brandon Mills)

#### Chores

-   [`e94a4a9`](eslint/eslint@e94a4a9) chore: Add tests to verify [#&#8203;16038](eslint/eslint#16038) is fixed ([#&#8203;16538](eslint/eslint#16538)) (Nicholas C. Zakas)
-   [`e13f194`](eslint/eslint@e13f194) chore: stricter validation of `meta.docs.description` in core rules ([#&#8203;16529](eslint/eslint#16529)) (Milos Djermanovic)
-   [`72dbfbc`](eslint/eslint@72dbfbc) chore: use `pkg` parameter in `getNpmPackageVersion` ([#&#8203;16525](eslint/eslint#16525)) (webxmsj)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

 **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4yOS4xIiwidXBkYXRlZEluVmVyIjoiMzQuNDAuMCJ9-->

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1652
Reviewed-by: Epsilon_02 <epsilon_02@noreply.codeberg.org>
Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
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