Migrate run-make/rustdoc-scrape-examples-remap to rmake.rs

Author: GuillaumeGomez

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -239,7 +239,6 @@ run-make/rustdoc-io-error/Makefile
 run-make/rustdoc-scrape-examples-invalid-expr/Makefile
 run-make/rustdoc-scrape-examples-macros/Makefile
 run-make/rustdoc-scrape-examples-multiple/Makefile
-run-make/rustdoc-scrape-examples-remap/Makefile
 run-make/rustdoc-scrape-examples-test/Makefile
 run-make/rustdoc-scrape-examples-whitespace/Makefile
 run-make/rustdoc-verify-output-files/Makefile

tests/run-make/rustdoc-scrape-examples-remap/Makefile

@@ -0,0 +1,5 @@
+mod scrape;
+
+fn main() {
+    scrape::scrape();
+}

tests/run-make/rustdoc-scrape-examples-remap/rmake.rs

@@ -0,0 +1,49 @@
+use run_make_support::{htmldocck, rustc, rustdoc, source_path, tmp_dir};
+use std::fs::read_dir;
+use std::path::Path;
+
+pub fn scrape() {
+    let lib_dir = tmp_dir();
+    let out_dir = tmp_dir().join("rustdoc");
+    let crate_name = "foobar";
+    let deps = read_dir("examples")
+        .unwrap()
+        .filter_map(|entry| entry.ok().map(|e| e.path()))
+        .filter(|path| path.is_file() && path.extension().is_some_and(|ext| ext == "rs"))
+        .collect::<Vec<_>>();
+
+    rustc().input("src/lib.rs").crate_name(crate_name).crate_type("lib").emit("metadata").run();
+
+    let mut out_deps = Vec::with_capacity(deps.len());
+    for dep in deps {
+        let dep_stem = dep.file_stem().unwrap();
+        let out_example = out_dir.join(format!("{}.calls", dep_stem.to_str().unwrap()));
+        rustdoc()
+            .input(&dep)
+            .crate_name(&dep_stem)
+            .crate_type("bin")
+            .output(&out_dir)
+            .extern_(crate_name, lib_dir.join(format!("lib{crate_name}.rmeta")))
+            .arg("-Zunstable-options")
+            .arg("--scrape-examples-output-path")
+            .arg(&out_example)
+            .arg("--scrape-examples-target-crate")
+            .arg(crate_name)
+            .run();
+        out_deps.push(out_example);
+    }
+
+    let mut rustdoc = rustdoc();
+    rustdoc
+        .input("src/lib.rs")
+        .output(&out_dir)
+        .crate_name(crate_name)
+        .crate_type("lib")
+        .arg("-Zunstable-options");
+    for dep in out_deps {
+        rustdoc.arg("--with-examples").arg(dep);
+    }
+    rustdoc.run();
+
+    assert!(htmldocck().arg(out_dir).arg("src/lib.rs").status().unwrap().success());
+}