Migrate run-make/rustdoc-verify-output-files to rmake.rs

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -227,7 +227,6 @@ run-make/rlib-format-packed-bundled-libs/Makefile
 run-make/rmeta-preferred/Makefile
 run-make/rustc-macro-dep-files/Makefile
 run-make/rustdoc-io-error/Makefile
-run-make/rustdoc-verify-output-files/Makefile
 run-make/sanitizer-cdylib-link/Makefile
 run-make/sanitizer-dylib-link/Makefile
 run-make/sanitizer-staticlib-link/Makefile

tests/run-make/rustdoc-verify-output-files/rmake.rs

@@ -0,0 +1,67 @@
+use std::fs::{copy, read, read_dir};
+use std::path::{Path, PathBuf};
+
+use run_make_support::{copy_dir_all, rustdoc, tmp_dir};
+
+fn generate_docs(out_dir: &Path, json_output: bool) {
+ let mut rustdoc = rustdoc();
+ rustdoc.input("src/lib.rs").crate_name("foobar").crate_type("lib").out_dir(&out_dir);
+ if json_output {
+ rustdoc.arg("-Zunstable-options").output_format("json");
+ }
+ rustdoc.run();
+}
+
+fn read_file(path: PathBuf) -> Vec<u8> {
+ match read(&path) {
+ Ok(c) => c,
+ Err(e) => panic!("Failed to read `{}`: {:?}", path.display(), e),
+ }
+}
+
+fn recursive_diff(dir1: &Path, dir2: &Path) {
+ for entry in read_dir(dir1).unwrap() {
+ let entry = entry.unwrap();
+ let entry_name = entry.file_name();
+ let path = entry.path();
+
+ if path.is_dir() {
+ recursive_diff(&path, &dir2.join(entry_name));
+ } else {
+ let file1 = read_file(path);
+ let file2 = read_file(dir2.join(entry_name));
+
+ assert!(file1 == file2);
+ }
+ }
+}
+
+fn main() {
+ let out_dir = tmp_dir().join("rustdoc");
+ let tmp_out_dir = tmp_dir().join("tmp-rustdoc");
+
+ // Generate HTML docs.
+ generate_docs(&out_dir, false);
+
+ // Copy first output for to check if it's exactly same after second compilation.
+ copy_dir_all(&out_dir, &tmp_out_dir).unwrap();
+
+ // Generate html docs once again on same output.
+ generate_docs(&out_dir, false);
+
+ // Generate json doc on the same output.
+ generate_docs(&out_dir, true);
+
+ // Check if expected json file is generated.
+ assert!(out_dir.join("foobar.json").is_file());
+
+ // Copy first json output to check if it's exactly same after second compilation.
+ copy(out_dir.join("foobar.json"), tmp_out_dir.join("foobar.json")).unwrap();
+
+ // Generate json doc on the same output.
+ generate_docs(&out_dir, true);
+
+ // Check if all docs(including both json and html formats) are still the same after multiple
+ // compilations.
+ recursive_diff(&out_dir, &tmp_out_dir);
+}