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54 changes: 54 additions & 0 deletions
54
src/tools/clippy/clippy_lints/src/cargo/common_metadata.rs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| //! lint on missing cargo common metadata | ||
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| use cargo_metadata::Metadata; | ||
| use clippy_utils::diagnostics::span_lint; | ||
| use rustc_lint::LateContext; | ||
| use rustc_span::source_map::DUMMY_SP; | ||
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| use super::CARGO_COMMON_METADATA; | ||
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| pub(super) fn check(cx: &LateContext<'_>, metadata: &Metadata, ignore_publish: bool) { | ||
| for package in &metadata.packages { | ||
| // only run the lint if publish is `None` (`publish = true` or skipped entirely) | ||
| // or if the vector isn't empty (`publish = ["something"]`) | ||
| if package.publish.as_ref().filter(|publish| publish.is_empty()).is_none() || ignore_publish { | ||
| if is_empty_str(&package.description) { | ||
| missing_warning(cx, package, "package.description"); | ||
| } | ||
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| if is_empty_str(&package.license) && is_empty_str(&package.license_file) { | ||
| missing_warning(cx, package, "either package.license or package.license_file"); | ||
| } | ||
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| if is_empty_str(&package.repository) { | ||
| missing_warning(cx, package, "package.repository"); | ||
| } | ||
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| if is_empty_str(&package.readme) { | ||
| missing_warning(cx, package, "package.readme"); | ||
| } | ||
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| if is_empty_vec(&package.keywords) { | ||
| missing_warning(cx, package, "package.keywords"); | ||
| } | ||
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| if is_empty_vec(&package.categories) { | ||
| missing_warning(cx, package, "package.categories"); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| fn missing_warning(cx: &LateContext<'_>, package: &cargo_metadata::Package, field: &str) { | ||
| let message = format!("package `{}` is missing `{}` metadata", package.name, field); | ||
| span_lint(cx, CARGO_COMMON_METADATA, DUMMY_SP, &message); | ||
| } | ||
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| fn is_empty_str<T: AsRef<std::ffi::OsStr>>(value: &Option<T>) -> bool { | ||
| value.as_ref().map_or(true, |s| s.as_ref().is_empty()) | ||
| } | ||
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| fn is_empty_vec(value: &[String]) -> bool { | ||
| // This works because empty iterators return true | ||
| value.iter().all(String::is_empty) | ||
| } |
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