500 lines
14 KiB
Rust
500 lines
14 KiB
Rust
use std::{
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collections::HashSet,
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path::{Path, PathBuf},
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};
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use xshell::{cmd, pushd, pushenv, read_file};
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#[test]
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fn check_code_formatting() {
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let _dir = pushd(sourcegen::project_root()).unwrap();
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let _e = pushenv("RUSTUP_TOOLCHAIN", "stable");
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let out = cmd!("rustfmt --version").read().unwrap();
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if !out.contains("stable") {
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panic!(
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"Failed to run rustfmt from toolchain 'stable'. \
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Please run `rustup component add rustfmt --toolchain stable` to install it.",
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)
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}
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let res = cmd!("cargo fmt -- --check").run();
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if res.is_err() {
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let _ = cmd!("cargo fmt").run();
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}
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res.unwrap()
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}
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#[test]
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fn check_lsp_extensions_docs() {
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let expected_hash = {
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let lsp_ext_rs =
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read_file(sourcegen::project_root().join("crates/rust-analyzer/src/lsp_ext.rs"))
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.unwrap();
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stable_hash(lsp_ext_rs.as_str())
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};
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let actual_hash = {
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let lsp_extensions_md =
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read_file(sourcegen::project_root().join("docs/dev/lsp-extensions.md")).unwrap();
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let text = lsp_extensions_md
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.lines()
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.find_map(|line| line.strip_prefix("lsp_ext.rs hash:"))
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.unwrap()
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.trim();
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u64::from_str_radix(text, 16).unwrap()
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};
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if actual_hash != expected_hash {
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panic!(
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"
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lsp_ext.rs was changed without touching lsp-extensions.md.
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Expected hash: {:x}
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Actual hash: {:x}
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Please adjust docs/dev/lsp-extensions.md.
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",
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expected_hash, actual_hash
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)
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}
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}
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#[test]
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fn files_are_tidy() {
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let files = sourcegen::list_files(&sourcegen::project_root().join("crates"));
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let mut tidy_docs = TidyDocs::default();
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let mut tidy_marks = TidyMarks::default();
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for path in files {
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let extension = path.extension().unwrap_or_default().to_str().unwrap_or_default();
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match extension {
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"rs" => {
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let text = read_file(&path).unwrap();
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check_todo(&path, &text);
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check_dbg(&path, &text);
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check_test_attrs(&path, &text);
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check_trailing_ws(&path, &text);
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deny_clippy(&path, &text);
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tidy_docs.visit(&path, &text);
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tidy_marks.visit(&path, &text);
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}
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"toml" => {
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let text = read_file(&path).unwrap();
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check_cargo_toml(&path, text);
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}
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_ => (),
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}
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}
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tidy_docs.finish();
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tidy_marks.finish();
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}
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fn check_cargo_toml(path: &Path, text: String) -> () {
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let mut section = None;
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for (line_no, text) in text.lines().enumerate() {
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let text = text.trim();
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if text.starts_with('[') {
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if !text.ends_with(']') {
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panic!(
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"\nplease don't add comments or trailing whitespace in section lines.\n\
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{}:{}\n",
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path.display(),
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line_no + 1
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)
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}
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section = Some(text);
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continue;
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}
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let text: String = text.split_whitespace().collect();
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if !text.contains("path=") {
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continue;
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}
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match section {
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Some(s) if s.contains("dev-dependencies") => {
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if text.contains("version") {
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panic!(
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"\ncargo internal dev-dependencies should not have a version.\n\
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{}:{}\n",
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path.display(),
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line_no + 1
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);
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}
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}
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Some(s) if s.contains("dependencies") => {
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if !text.contains("version") {
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panic!(
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"\ncargo internal dependencies should have a version.\n\
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{}:{}\n",
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path.display(),
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line_no + 1
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);
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}
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}
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_ => {}
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}
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}
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}
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#[test]
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fn check_merge_commits() {
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let stdout = cmd!("git rev-list --merges --invert-grep --author 'bors\\[bot\\]' HEAD~19..")
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.read()
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.unwrap();
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if !stdout.is_empty() {
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panic!(
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"
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Merge commits are not allowed in the history.
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When updating a pull-request, please rebase your feature branch
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on top of master by running `git rebase master`. If rebase fails,
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you can re-apply your changes like this:
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# Just look around to see the current state.
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$ git status
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$ git log
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# Abort in-progress rebase and merges, if any.
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$ git rebase --abort
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$ git merge --abort
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# Make the branch point to the latest commit from master,
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# while maintaining your local changes uncommited.
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$ git reset --soft origin/master
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# Commit all changes in a single batch.
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$ git commit -am'My changes'
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# Verify that everything looks alright.
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$ git status
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$ git log
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# Push the changes. We did a rebase, so we need `--force` option.
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# `--force-with-lease` is a more safe (Rusty) version of `--force`.
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$ git push --force-with-lease
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# Verify that both local and remote branch point to the same commit.
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$ git log
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And don't fear to mess something up during a rebase -- you can
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always restore the previous state using `git ref-log`:
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https://github.blog/2015-06-08-how-to-undo-almost-anything-with-git/#redo-after-undo-local
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"
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);
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}
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}
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fn deny_clippy(path: &Path, text: &str) {
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let ignore = &[
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// The documentation in string literals may contain anything for its own purposes
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"ide_db/src/helpers/generated_lints.rs",
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// The tests test clippy lint hovers
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"ide/src/hover.rs",
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];
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if ignore.iter().any(|p| path.ends_with(p)) {
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return;
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}
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if text.contains("\u{61}llow(clippy") {
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panic!(
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"\n\nallowing lints is forbidden: {}.
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rust-analyzer intentionally doesn't check clippy on CI.
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You can allow lint globally via `xtask clippy`.
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See https://github.com/rust-lang/rust-clippy/issues/5537 for discussion.
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",
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path.display()
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)
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}
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}
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#[test]
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fn check_licenses() {
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let expected = "
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0BSD OR MIT OR Apache-2.0
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Apache-2.0
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Apache-2.0 OR BSL-1.0
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Apache-2.0 OR MIT
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Apache-2.0/MIT
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BSD-3-Clause
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CC0-1.0 OR Artistic-2.0
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ISC
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MIT
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MIT / Apache-2.0
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MIT OR Apache-2.0
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MIT OR Apache-2.0 OR Zlib
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MIT OR Zlib OR Apache-2.0
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MIT/Apache-2.0
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Unlicense OR MIT
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Unlicense/MIT
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Zlib OR Apache-2.0 OR MIT
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"
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.lines()
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.filter(|it| !it.is_empty())
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.collect::<Vec<_>>();
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let meta = cmd!("cargo metadata --format-version 1").read().unwrap();
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let mut licenses = meta
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.split(|c| c == ',' || c == '{' || c == '}')
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.filter(|it| it.contains(r#""license""#))
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.map(|it| it.trim())
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.map(|it| it[r#""license":"#.len()..].trim_matches('"'))
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.collect::<Vec<_>>();
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licenses.sort_unstable();
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licenses.dedup();
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if licenses != expected {
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let mut diff = String::new();
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diff.push_str("New Licenses:\n");
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for &l in licenses.iter() {
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if !expected.contains(&l) {
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diff += &format!(" {}\n", l)
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}
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}
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diff.push_str("\nMissing Licenses:\n");
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for &l in expected.iter() {
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if !licenses.contains(&l) {
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diff += &format!(" {}\n", l)
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}
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}
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panic!("different set of licenses!\n{}", diff);
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}
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assert_eq!(licenses, expected);
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}
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fn check_todo(path: &Path, text: &str) {
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let need_todo = &[
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// This file itself obviously needs to use todo (<- like this!).
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"tests/tidy.rs",
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// Some of our assists generate `todo!()`.
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"handlers/add_turbo_fish.rs",
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"handlers/generate_function.rs",
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"handlers/fill_match_arms.rs",
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"handlers/replace_derive_with_manual_impl.rs",
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// To support generating `todo!()` in assists, we have `expr_todo()` in
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// `ast::make`.
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"ast/make.rs",
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// The documentation in string literals may contain anything for its own purposes
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"ide_db/src/helpers/generated_lints.rs",
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"ide_assists/src/tests/generated.rs",
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];
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if need_todo.iter().any(|p| path.ends_with(p)) {
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return;
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}
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if text.contains("TODO") || text.contains("TOOD") || text.contains("todo!") {
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// Generated by an assist
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if text.contains("${0:todo!()}") {
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return;
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}
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panic!(
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"\nTODO markers or todo! macros should not be committed to the master branch,\n\
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use FIXME instead\n\
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{}\n",
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path.display(),
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)
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}
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}
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fn check_dbg(path: &Path, text: &str) {
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let need_dbg = &[
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// This file itself obviously needs to use dbg.
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"slow-tests/tidy.rs",
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// Assists to remove `dbg!()`
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"handlers/remove_dbg.rs",
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// We have .dbg postfix
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"ide_completion/src/completions/postfix.rs",
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// The documentation in string literals may contain anything for its own purposes
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"ide_completion/src/lib.rs",
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"ide_db/src/helpers/generated_lints.rs",
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// test for doc test for remove_dbg
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"src/tests/generated.rs",
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];
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if need_dbg.iter().any(|p| path.ends_with(p)) {
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return;
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}
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if text.contains("dbg!") {
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panic!(
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"\ndbg! macros should not be committed to the master branch,\n\
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{}\n",
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path.display(),
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)
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}
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}
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fn check_test_attrs(path: &Path, text: &str) {
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let ignore_rule =
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"https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/dev/style.md#ignore";
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let need_ignore: &[&str] = &[
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// This file.
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"slow-tests/tidy.rs",
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// Special case to run `#[ignore]` tests.
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"ide/src/runnables.rs",
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// A legit test which needs to be ignored, as it takes too long to run
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// :(
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"hir_def/src/nameres/collector.rs",
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// Long sourcegen test to generate lint completions.
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"ide_completion/src/tests/sourcegen.rs",
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// Obviously needs ignore.
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"ide_assists/src/handlers/toggle_ignore.rs",
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// See above.
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"ide_assists/src/tests/generated.rs",
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];
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if text.contains("#[ignore") && !need_ignore.iter().any(|p| path.ends_with(p)) {
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panic!("\ndon't `#[ignore]` tests, see:\n\n {}\n\n {}\n", ignore_rule, path.display(),)
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}
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let panic_rule =
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"https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/dev/style.md#should_panic";
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let need_panic: &[&str] = &[
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// This file.
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"slow-tests/tidy.rs",
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"test_utils/src/fixture.rs",
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];
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if text.contains("#[should_panic") && !need_panic.iter().any(|p| path.ends_with(p)) {
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panic!(
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"\ndon't add `#[should_panic]` tests, see:\n\n {}\n\n {}\n",
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panic_rule,
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path.display(),
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)
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}
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}
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fn check_trailing_ws(path: &Path, text: &str) {
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if is_exclude_dir(path, &["test_data"]) {
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return;
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}
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for (line_number, line) in text.lines().enumerate() {
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if line.chars().last().map(char::is_whitespace) == Some(true) {
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panic!("Trailing whitespace in {} at line {}", path.display(), line_number + 1)
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}
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}
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}
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#[derive(Default)]
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struct TidyDocs {
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missing_docs: Vec<String>,
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contains_fixme: Vec<PathBuf>,
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}
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impl TidyDocs {
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fn visit(&mut self, path: &Path, text: &str) {
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// Tests and diagnostic fixes don't need module level comments.
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if is_exclude_dir(path, &["tests", "test_data", "fixes", "grammar"]) {
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return;
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}
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if is_exclude_file(path) {
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return;
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}
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let first_line = match text.lines().next() {
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Some(it) => it,
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None => return,
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};
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if first_line.starts_with("//!") {
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if first_line.contains("FIXME") {
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self.contains_fixme.push(path.to_path_buf());
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}
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} else {
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if text.contains("// Feature:")
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|| text.contains("// Assist:")
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|| text.contains("// Diagnostic:")
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{
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return;
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}
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self.missing_docs.push(path.display().to_string());
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}
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fn is_exclude_file(d: &Path) -> bool {
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let file_names = ["tests.rs", "famous_defs_fixture.rs"];
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d.file_name()
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.unwrap_or_default()
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.to_str()
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.map(|f_n| file_names.iter().any(|name| *name == f_n))
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.unwrap_or(false)
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}
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}
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fn finish(self) {
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if !self.missing_docs.is_empty() {
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panic!(
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"\nMissing docs strings\n\n\
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modules:\n{}\n\n",
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self.missing_docs.join("\n")
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)
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}
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for path in self.contains_fixme {
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panic!("FIXME doc in a fully-documented crate: {}", path.display())
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}
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}
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}
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fn is_exclude_dir(p: &Path, dirs_to_exclude: &[&str]) -> bool {
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p.strip_prefix(sourcegen::project_root())
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.unwrap()
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.components()
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.rev()
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.skip(1)
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.filter_map(|it| it.as_os_str().to_str())
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.any(|it| dirs_to_exclude.contains(&it))
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}
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#[derive(Default)]
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struct TidyMarks {
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hits: HashSet<String>,
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checks: HashSet<String>,
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}
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impl TidyMarks {
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fn visit(&mut self, _path: &Path, text: &str) {
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for line in text.lines() {
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if let Some(mark) = find_mark(line, "hit") {
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self.hits.insert(mark.to_string());
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}
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if let Some(mark) = find_mark(line, "check") {
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self.checks.insert(mark.to_string());
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}
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if let Some(mark) = find_mark(line, "check_count") {
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self.checks.insert(mark.to_string());
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}
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}
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}
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fn finish(self) {
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assert!(!self.hits.is_empty());
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let diff: Vec<_> =
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self.hits.symmetric_difference(&self.checks).map(|it| it.as_str()).collect();
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if !diff.is_empty() {
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panic!("unpaired marks: {:?}", diff)
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}
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}
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}
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#[allow(deprecated)]
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fn stable_hash(text: &str) -> u64 {
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use std::hash::{Hash, Hasher, SipHasher};
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let text = text.replace('\r', "");
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let mut hasher = SipHasher::default();
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text.hash(&mut hasher);
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hasher.finish()
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}
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fn find_mark<'a>(text: &'a str, mark: &'static str) -> Option<&'a str> {
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let idx = text.find(mark)?;
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let text = text[idx + mark.len()..].strip_prefix("!(")?;
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let idx = text.find(|c: char| !(c.is_alphanumeric() || c == '_'))?;
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let text = &text[..idx];
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Some(text)
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}
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