mod cli; use std::{ collections::HashMap, path::{Path, PathBuf}, }; use xtask::{not_bash::fs2, project_root, rust_files}; #[test] fn rust_files_are_tidy() { let mut tidy_docs = TidyDocs::default(); for path in rust_files(&project_root().join("crates")) { let text = fs2::read_to_string(&path).unwrap(); check_todo(&path, &text); check_trailing_ws(&path, &text); tidy_docs.visit(&path, &text); } tidy_docs.finish(); } fn check_todo(path: &Path, text: &str) { let whitelist = &[ // This file itself is whitelisted since this test itself contains matches. "tests/cli.rs", // Some of our assists generate `todo!()` so those files are whitelisted. "doc_tests/generated.rs", "handlers/add_missing_impl_members.rs", "handlers/add_function.rs", // To support generating `todo!()` in assists, we have `expr_todo()` in ast::make. "ast/make.rs", ]; if whitelist.iter().any(|p| path.ends_with(p)) { return; } if text.contains("TODO") || text.contains("TOOD") || text.contains("todo!") { panic!( "\nTODO markers should not be committed to the master branch,\n\ use FIXME instead\n\ {}\n", path.display(), ) } } fn check_trailing_ws(path: &Path, text: &str) { if is_exclude_dir(path, &["test_data"]) { return; } for line in text.lines() { if line.chars().last().map(char::is_whitespace) == Some(true) { panic!("Trailing whitespace in {}", path.display()) } } } #[derive(Default)] struct TidyDocs { missing_docs: Vec, contains_fixme: Vec, } impl TidyDocs { fn visit(&mut self, path: &Path, text: &str) { // Test hopefully don't really need comments, and for assists we already // have special comments which are source of doc tests and user docs. if is_exclude_dir(path, &["tests", "test_data", "handlers"]) { return; } if is_exclude_file(path) { return; } let first_line = match text.lines().next() { Some(it) => it, None => return, }; if first_line.starts_with("//!") { if first_line.contains("FIXME") { self.contains_fixme.push(path.to_path_buf()) } } else { self.missing_docs.push(path.display().to_string()); } fn is_exclude_file(d: &Path) -> bool { let file_names = ["tests.rs"]; d.file_name() .unwrap_or_default() .to_str() .map(|f_n| file_names.iter().any(|name| *name == f_n)) .unwrap_or(false) } } fn finish(self) { if !self.missing_docs.is_empty() { panic!( "\nMissing docs strings\n\n\ modules:\n{}\n\n", self.missing_docs.join("\n") ) } let whitelist = [ "ra_db", "ra_hir", "ra_hir_expand", "ra_ide", "ra_mbe", "ra_parser", "ra_prof", "ra_project_model", "ra_syntax", "ra_text_edit", "ra_tt", "ra_hir_ty", ]; let mut has_fixmes = whitelist.iter().map(|it| (*it, false)).collect::>(); 'outer: for path in self.contains_fixme { for krate in whitelist.iter() { if path.components().any(|it| it.as_os_str() == *krate) { has_fixmes.insert(krate, true); continue 'outer; } } panic!("FIXME doc in a fully-documented crate: {}", path.display()) } for (krate, has_fixme) in has_fixmes.iter() { if !has_fixme { panic!("crate {} is fully documented, remove it from the white list", krate) } } } } fn is_exclude_dir(p: &Path, dirs_to_exclude: &[&str]) -> bool { let mut cur_path = p; while let Some(path) = cur_path.parent() { if dirs_to_exclude.iter().any(|dir| path.ends_with(dir)) { return true; } cur_path = path; } false }