Add support for running crate specific extra_lints

Some lints need to be run at the crate level, e.g. no-default-features.
Other crate specific lints can be useful in CI.

Add support for running crate specific extra_lints.sh scripts.

Author: jamillambert

ci/run_task.sh

@@ -87,7 +87,8 @@ main() {
         ;;
 
     lint)
-        do_lint
+        do_lint_workspace
+        do_lint_crates
         do_dup_deps
         ;;
 
@@ -228,12 +229,24 @@ loop_features() {
 }
 
 # Lint the workspace.
-do_lint() {
+do_lint_workspace() {
     need_nightly
     $cargo clippy --workspace --all-targets --all-features --keep-going -- -D warnings
     $cargo clippy --workspace --all-targets --keep-going -- -D warnings
 }
 
+# Run extra crate specific lints, e.g. clippy with no-default-features.
+do_lint_crates() {
+    need_nightly
+    for crate in $CRATES; do
+        pushd "$REPO_DIR/$crate" > /dev/null
+        if [ -e ./contrib/extra_lints.sh ]; then
+            ./contrib/extra_lints.sh
+        fi
+        popd > /dev/null
+    done
+}
+
 # We should not have any duplicate dependencies. This catches mistakes made upgrading dependencies
 # in one crate and not in another (e.g. upgrade bitcoin_hashes in bitcoin but not in secp).
 do_dup_deps() {