IndexError: list index out of range in pattern_to_regex #44
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Hi @sanderland, I can't reproduce this error. Based upon the line you referenced, if there's a bug this should trigger it: >>> from pathspec.patterns.gitwildmatch import GitWildMatchPattern
>>> GitWildMatchPattern.pattern_to_regex("!'n")
("^(?:.+/)?\\'n$", False)
>>> GitWildMatchPattern.pattern_to_regex("!'n\n")
("^(?:.+/)?\\'n$", False)Can you provide a minimal example replicating the error you encountered? |
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Sorry the |
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Thank you. That reproduces the error: >>> GitWildMatchPattern.pattern_to_regex("!")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/.../python-path-specification/pathspec/patterns/gitwildmatch.py", line 112, in pattern_to_regex
if not pattern_segs[-1] and len(pattern_segs) > 1:
IndexError: list index out of range |
SebastiaanZ
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We've addressed the issue that GitWildMatchPattern would raise a cryptic IndexError for invalid git patterns. Instead, we raise an informative exception explaining that an invalid pattern was encountered. This exception is raised for at least the following patterns: - `!` - `\`
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We've addressed the issue that GitWildMatchPattern would raise a cryptic IndexError for invalid git patterns. Instead, we raise an informative exception explaining that an invalid pattern was encountered. This exception is raised for at least the following patterns: - `!` - `\`
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Address #44: raise informative exception for invalid git patterns
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180: Bump pathspec from 0.8.1 to 0.9.0 r=rehandalal a=dependabot[bot] Bumps [pathspec](https://github.com/cpburnz/python-path-specification) from 0.8.1 to 0.9.0. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/cpburnz/python-path-specification/releases">pathspec's releases</a>.</em></p> <blockquote> <h2>v0.9.0</h2> <p>Release v0.9.0.</p> </blockquote> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/cpburnz/python-path-specification/blob/master/CHANGES.rst">pathspec's changelog</a>.</em></p> <blockquote> <h2>0.9.0 (2021-07-17)</h2> <ul> <li><code>Issue [#44](https://github.com/cpburnz/python-path-specification/issues/44)</code><em>/<code>Issue [#50](https://github.com/cpburnz/python-path-specification/issues/50)</code></em>: Raise <code>GitWildMatchPatternError</code> for invalid git patterns.</li> <li><code>Issue [#45](https://github.com/cpburnz/python-path-specification/issues/45)</code>_: Fix for duplicate leading double-asterisk, and edge cases.</li> <li><code>Issue [#46](https://github.com/cpburnz/python-path-specification/issues/46)</code>_: Fix matching absolute paths.</li> <li>API change: <code>util.normalize_files()</code> now returns a <code>Dict[str, List[pathlike]]</code> instead of a <code>Dict[str, pathlike]</code>.</li> <li>Added type hinting.</li> </ul> <p>.. _<code>Issue [#44](https://github.com/cpburnz/python-path-specification/issues/44)</code>: <a href="https://github-redirect.dependabot.com/cpburnz/python-path-specification/issues/44">cpburnz/python-path-specification#44</a> .. _<code>Issue [#45](https://github.com/cpburnz/python-path-specification/issues/45)</code>: <a href="https://github-redirect.dependabot.com/cpburnz/python-path-specification/pull/45">cpburnz/python-path-specification#45</a> .. _<code>Issue [#46](https://github.com/cpburnz/python-path-specification/issues/46)</code>: <a href="https://github-redirect.dependabot.com/cpburnz/python-path-specification/issues/46">cpburnz/python-path-specification#46</a> .. _<code>Issue [#50](https://github.com/cpburnz/python-path-specification/issues/50)</code>: <a href="https://github-redirect.dependabot.com/cpburnz/python-path-specification/pull/50">cpburnz/python-path-specification#50</a></p> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/cpburnz/python-path-specification/commit/7ca27e2300ced6364a3816820eb2532c89c7d01c"><code>7ca27e2</code></a> Release v0.9.0</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/816aba44fd44a42dd4b65d04f182d60c580a7348"><code>816aba4</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/cpburnz/python-path-specification/issues/50">#50</a> from SebastiaanZ/bug/44-index-error</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/ed4481f2d2708d47a25e828fd5be8980fbcfe1f4"><code>ed4481f</code></a> Address <a href="https://github-redirect.dependabot.com/cpburnz/python-path-specification/issues/44">#44</a>: raise informative exception for invalid git patterns</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/c00b332b2075548ee0c0673b72d7f2570d12ffe6"><code>c00b332</code></a> Add type hints</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/19daf50ec0b49c5ec7f20ac95ed6d7f5922c4a5d"><code>19daf50</code></a> Update credits</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/4d6c0bd1f53836f2fc59e6e5a1f3555558d82133"><code>4d6c0bd</code></a> Fix matching absolute paths</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/0761facce8d3f960574ef3ae5636243fe2f907e9"><code>0761fac</code></a> Update CHANGES</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/08ba4e62c6476a0f4ff4c798b2ec16943e8ab85f"><code>08ba4e6</code></a> Support '**/'</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/789fa6ff8998abf5fae20f14793139b6fd94f303"><code>789fa6f</code></a> Expand some tests</li> <li><a href="https://github.com/cpburnz/python-path-specification/commit/a6ebcba01c0d11377cd432640504e7a631b43ceb"><code>a6ebcba</code></a> Handle all duplicate double-asterisk sequences</li> <li>Additional commits viewable in <a href="https://github.com/cpburnz/python-path-specification/compare/v0.8.1...v0.9.0">compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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I encountered an exeption in pathspec when
This line gives an error when the string "!\n" is passed, specifically due to a stray linebreak in the .gitignore file.
https://github.com/cpburnz/python-path-specification/blob/master/pathspec/patterns/gitwildmatch.py#L112
I am not sure what the expected behaviour is here, but it may be best to ignore rather than crash on the line.
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