add just rustdoc

Author: sunshowers

.github/workflows/ci.yml

@@ -17,6 +17,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
+      - uses: taiki-e/install-action@just
       - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           key: partition-${{ matrix.partition }}

Justfile

@@ -2,6 +2,13 @@ set positional-arguments
 
 # Note: help messages should be 1 line long as required by just.
 
+# Build docs for crates and direct dependencies
+rustdoc *args:
+    @cargo tree --depth 1 -e normal --prefix none --workspace --all-features \
+        | gawk '{ gsub(" v", "@", $0); printf("%s\n", $1); }' \
+        | xargs printf -- '-p %s\n' \
+        | RUSTC_BOOTSTRAP=1 RUSTDOCFLAGS='--cfg=doc_cfg' xargs cargo doc --no-deps --all-features {{args}}
+
 # Run cargo release in CI.
 ci-cargo-release:
     # cargo-release requires a release off a branch.