Migrate run-make/doctests-keep-binaries to new rmake.rs format

src/tools/run-make-support/src/lib.rs

@@ -261,6 +261,12 @@ macro_rules! impl_common_helpers {
                 }
                 output
             }
+
+            /// Set the path where the command will be run.
+            pub fn current_dir<P: AsRef<Path>>(&mut self, path: P) -> &mut Self {
+                self.cmd.current_dir(path);
+                self
+            }
         }
     };
 }

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -44,7 +44,6 @@ run-make/dep-graph/Makefile
 run-make/dep-info-doesnt-run-much/Makefile
 run-make/dep-info-spaces/Makefile
 run-make/dep-info/Makefile
-run-make/doctests-keep-binaries/Makefile
 run-make/doctests-runtool/Makefile
 run-make/dump-ice-to-disk/Makefile
 run-make/dump-mono-stats/Makefile

tests/run-make/doctests-keep-binaries/rmake.rs

@@ -0,0 +1,68 @@
+// Check that valid binaries are persisted by running them, regardless of whether the
+// --run or --no-run option is used.
+
+use run_make_support::{run, rustc, rustdoc, tmp_dir};
+use std::fs::{create_dir, remove_dir_all};
+use std::path::Path;
+
+fn setup_test_env<F: FnOnce(&Path, &Path)>(callback: F) {
+    let out_dir = tmp_dir().join("doctests");
+    create_dir(&out_dir).expect("failed to create doctests folder");
+    rustc().input("t.rs").crate_type("rlib").run();
+    callback(&out_dir, &tmp_dir().join("libt.rlib"));
+    remove_dir_all(out_dir);
+}
+
+fn check_generated_binaries() {
+    run("doctests/t_rs_2_0/rust_out");
+    run("doctests/t_rs_8_0/rust_out");
+}
+
+fn main() {
+    setup_test_env(|out_dir, extern_path| {
+        rustdoc()
+            .input("t.rs")
+            .arg("-Zunstable-options")
+            .arg("--test")
+            .arg("--persist-doctests")
+            .arg(out_dir)
+            .arg("--extern")
+            .arg(format!("t={}", extern_path.display()))
+            .run();
+        check_generated_binaries();
+    });
+    setup_test_env(|out_dir, extern_path| {
+        rustdoc()
+            .input("t.rs")
+            .arg("-Zunstable-options")
+            .arg("--test")
+            .arg("--persist-doctests")
+            .arg(out_dir)
+            .arg("--extern")
+            .arg(format!("t={}", extern_path.display()))
+            .arg("--no-run")
+            .run();
+        check_generated_binaries();
+    });
+    // Behavior with --test-run-directory with relative paths.
+    setup_test_env(|_out_dir, extern_path| {
+        let run_dir = "rundir";
+        let run_dir_path = tmp_dir().join("rundir");
+        create_dir(&run_dir_path).expect("failed to create rundir folder");
+
+        rustdoc()
+            .current_dir(tmp_dir())
+            .input(std::env::current_dir().unwrap().join("t.rs"))
+            .arg("-Zunstable-options")
+            .arg("--test")
+            .arg("--persist-doctests")
+            .arg("doctests")
+            .arg("--test-run-directory")
+            .arg(run_dir)
+            .arg("--extern")
+            .arg("t=libt.rlib")
+            .run();
+
+        remove_dir_all(run_dir_path);
+    });
+}