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Implement copyright notice detection (#4701)

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## Summary

Add copyright notice detection to enforce the presence of copyright
headers in Python files.

Configurable settings include: the relevant regular expression, the
author name, and the minimum file size, similar to
[flake8-copyright](https://github.com/savoirfairelinux/flake8-copyright).

Closes https://github.com/charliermarsh/ruff/issues/3579

---------

Signed-off-by: ryan <ryang@waabi.ai>
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
This commit is contained in:
Ryan Yang 2023-06-10 19:17:58 -07:00 • committed by GitHub
parent 9f7cc86a22
commit ab3c02342b
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GPG key ID: 4AEE18F83AFDEB23
26 changed files with 465 additions and 24 deletions
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8
crates/ruff_macros/src/rule_namespace.rs
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@ -15,9 +15,9 @@ pub(crate) fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenS
let mut parsed = Vec::new();
let mut common_prefix_match_arms = quote!();
let mut name_match_arms =
quote!(Self::Ruff => "Ruff-specific rules", Self::Numpy => "NumPy-specific rules", );
let mut url_match_arms = quote!(Self::Ruff => None, Self::Numpy => None, );
let mut name_match_arms = quote!(Self::Ruff => "Ruff-specific rules", Self::Numpy => "NumPy-specific rules", Self::Copyright => "Copyright-related rules", );
let mut url_match_arms =
quote!(Self::Ruff => None, Self::Numpy => None, Self::Copyright => None, );
let mut all_prefixes = HashSet::new();
@ -59,7 +59,7 @@ pub(crate) fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenS
let variant_ident = variant.ident;
if variant_ident != "Ruff" && variant_ident != "Numpy" {
if variant_ident != "Ruff" && variant_ident != "Numpy" && variant_ident != "Copyright" {
let (name, url) = parse_doc_attr(doc_attr)?;
name_match_arms.extend(quote! {Self::#variant_ident => #name,});
url_match_arms.extend(quote! {Self::#variant_ident => Some(#url),});