Protect pony-lint against oversize ignore files#5140
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SeanTAllen merged 1 commit intomainfrom Apr 5, 2026
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IgnoreMatcher._load_file reads .gitignore and .ignore files without checking size first. With hierarchical ignore loading, each directory in the walk can have its own ignore files, so an oversized one could cause unexpected memory consumption. Add a 64 KB size check (matching the config file bound) and also report files that exist but cannot be opened. Errors surface as lint/ignore-error diagnostics with exit code 2, following the same pattern as config file errors. Closes #5137
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IgnoreMatcher._load_file reads .gitignore and .ignore files without checking size first. With hierarchical ignore loading, each directory in the walk can have its own ignore files, so an oversized one could cause unexpected memory consumption.
Adds a 64 KB size check (matching the config file bound from #5138) and also reports files that exist but cannot be opened. Errors surface as
lint/ignore-errordiagnostics with exit code 2, following the same pattern as config file errors.Closes #5137