rust/xtask/tests/tidy-tests/docs.rs
2020-02-17 17:32:17 +01:00

109 lines
3.1 KiB
Rust

use std::{collections::HashMap, fs, io::prelude::*, io::BufReader, path::Path};
use anyhow::Context;
use walkdir::{DirEntry, WalkDir};
use xtask::project_root;
fn is_exclude_dir(p: &Path) -> bool {
// Test hopefully don't really need comments, and for assists we already
// have special comments which are source of doc tests and user docs.
let exclude_dirs = ["tests", "test_data", "handlers"];
let mut cur_path = p;
while let Some(path) = cur_path.parent() {
if exclude_dirs.iter().any(|dir| path.ends_with(dir)) {
return true;
}
cur_path = path;
}
false
}
fn is_exclude_file(d: &DirEntry) -> bool {
let file_names = ["tests.rs"];
d.file_name().to_str().map(|f_n| file_names.iter().any(|name| *name == f_n)).unwrap_or(false)
}
fn is_hidden(entry: &DirEntry) -> bool {
entry.file_name().to_str().map(|s| s.starts_with('.')).unwrap_or(false)
}
#[test]
fn no_docs_comments() {
let crates = project_root().join("crates");
let iter = WalkDir::new(crates);
let mut missing_docs = Vec::new();
let mut contains_fixme = Vec::new();
for f in iter.into_iter().filter_entry(|e| !is_hidden(e)) {
let f = f.unwrap();
if f.file_type().is_dir() {
continue;
}
if f.path().extension().map(|it| it != "rs").unwrap_or(false) {
continue;
}
if is_exclude_dir(f.path()) {
continue;
}
if is_exclude_file(&f) {
continue;
}
let mut reader = BufReader::new(fs::File::open(f.path()).unwrap());
let mut line = String::new();
reader
.read_line(&mut line)
.with_context(|| format!("Failed to read {}", f.path().display()))
.unwrap();
if line.starts_with("//!") {
if line.contains("FIXME") {
contains_fixme.push(f.path().to_path_buf())
}
} else {
missing_docs.push(f.path().display().to_string());
}
}
if !missing_docs.is_empty() {
panic!(
"\nMissing docs strings\n\n\
modules:\n{}\n\n",
missing_docs.join("\n")
)
}
let whitelist = [
"ra_cli",
"ra_db",
"ra_hir",
"ra_hir_expand",
"ra_ide",
"ra_lsp_server",
"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::<HashMap<&str, bool>>();
'outer: for path in 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)
}
}
}