Make it possible to give your own cargo command for 'just' — heartwood

Do it by setting the environment variable ‘CARGO_CMD’ when running ‘just’, or by overriding the justfile variable ‘cargo_cmd’, like so:

CARGO_CMD='cargo --locked' just ...

or:

just cargo_cmd='cargo --locked' ...

 hooks := "pre-commit pre-push post-checkout commit-msg"
 hook-script := "scripts/git-hook-template.sh"
 cargo_cmd := env_var_or_default("CARGO_CMD", "cargo")
 WARN := "⚠️ " + YELLOW + BOLD
 SUCCESS := "✅ " + GREEN + BOLD
 ERROR := "❌ " + RED + BOLD

 [parallel]
 format-rust: (verify-tool "cargo")
     @echo "{{CHECK}}Cargo fmt...{{NORMAL}}"
     @cargo fmt --all
     @{{cargo_cmd}} fmt --all
 # Run cargo check
 [group('pre-commit')]

 [parallel]
 check-rust:
     @echo "{{CHECK}}Cargo check...{{NORMAL}}"
     @cargo check --workspace --all-targets --all-features
     @{{cargo_cmd}} check --workspace --all-targets --all-features
 # Check documentation for warnings
 [group('pre-commit')]

 [parallel]
 check-docs:
     @echo "{{CHECK}}Checking docs for warnings...{{NORMAL}}"
     @RUSTDOCFLAGS="--deny warnings" cargo doc --workspace --all-features --no-deps
     @RUSTDOCFLAGS="--deny warnings" {{cargo_cmd}} doc --workspace --all-features --no-deps
 # Check for typos
 [group('pre-commit')]

 [group('pre-push')]
 lint-rust: (verify-tool "cargo")
     @echo "{{CHECK}}Cargo clippy...{{NORMAL}}"
     @cargo clippy --workspace --all-targets --all-features -- --deny warnings
     @{{cargo_cmd}} clippy --workspace --all-targets --all-features -- --deny warnings
 # Check if required tools are in PATH.
 [private]