diff options
| -rw-r--r-- | Cargo.toml | 2 | ||||
| -rw-r--r-- | tests/dogfood.rs | 31 |
2 files changed, 33 insertions, 0 deletions
diff --git a/Cargo.toml b/Cargo.toml index 848476a9d05..458c28c2748 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -39,6 +39,8 @@ derive-new = "0.5" regex = "1.4" quote = "1" syn = { version = "1", features = ["full"] } +# This is used by the `collect-metadata` alias. +filetime = "0.2" # A noop dependency that changes in the Rust repository, it's a bit of a hack. # See the `src/tools/rustc-workspace-hack/README.md` file in `rust-lang/rust` diff --git a/tests/dogfood.rs b/tests/dogfood.rs index 5d9f128753f..7de130c7dbe 100644 --- a/tests/dogfood.rs +++ b/tests/dogfood.rs @@ -179,8 +179,39 @@ fn dogfood_subprojects() { #[ignore] #[cfg(feature = "metadata-collector-lint")] fn run_metadata_collection_lint() { + use std::fs::File; + use std::time::SystemTime; + + // Setup for validation + let metadata_output_path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("util/gh-pages/metadata_collection.json"); + let start_time = SystemTime::now(); + + // Run collection as is std::env::set_var("ENABLE_METADATA_COLLECTION", "1"); run_clippy_for_project("clippy_lints"); + + // Check if cargo caching got in the way + if let Ok(file) = File::open(metadata_output_path) { + if let Ok(metadata) = file.metadata() { + if let Ok(last_modification) = metadata.modified() { + if last_modification > start_time { + // The output file has been modified. Most likely by a hungry + // metadata collection monster. So We'll return. + return; + } + } + } + } + + // Force cargo to invalidate the caches + filetime::set_file_mtime( + PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("clippy_lints/src/lib.rs"), + filetime::FileTime::now(), + ) + .unwrap(); + + // Running the collection again + run_clippy_for_project("clippy_lints"); } fn run_clippy_for_project(project: &str) { |