chore: lint TOML

Author: crepererum

.github/workflows/ci.yml

@@ -28,6 +28,9 @@ jobs:
         with:
           tool: cargo-deny,just
 
+      - name: Install `tombi`
+        uses: tombi-toml/setup-tombi@a9378ac9fe5c29df7d26263deacea4ac642af9c2  # v1
+
       - name: Install stable toolchain
         uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9  # master
         with:

CONTRIBUTING.md

@@ -25,6 +25,9 @@ Install [just] to easily run all the tests/scripts.
 ### Python
 Install [Python] to set up the environment for the [Python] guest.
 
+### Tombi
+Install [tombi] to format and lint [TOML] files.
+
 
 ## Checks
 There is one "run everything" [just] recipe:
@@ -107,4 +110,6 @@ Then the [Python Standard Library] was not found or not bundled correctly. You m
 [Python Standard Library]: https://docs.python.org/3/library/index.html
 [Rust]: https://www.rust-lang.org/
 [rustup]: https://rustup.rs/
+[tombi]: https://tombi-toml.github.io/tombi
+[TOML]: https://toml.io/
 [yamllint]: https://github.com/adrienverge/yamllint

Justfile

@@ -52,14 +52,29 @@ check-rust-deny:
 # run ALL Rust checks
 check-rust: check-rust-fmt check-rust-check check-rust-build check-rust-clippy check-rust-test check-rust-doc check-rust-bench check-rust-deny
 
+# check TOML formatting
+check-toml-fmt:
+    @echo ::group::check-toml-fmt
+    tombi format --check
+    @echo ::endgroup::
+
+# lint TOML files with taplo
+check-toml-lint:
+    @echo ::group::check-toml-lint
+    tombi lint
+    @echo ::endgroup::
+
+# check TOML files
+check-toml: check-toml-fmt check-toml-lint
+
 # lint YAML files
 check-yaml:
     @echo ::group::check-yaml
     yamllint -s .
     @echo ::endgroup::
 
 # run ALL checks
-check: check-rust check-yaml
+check: check-rust check-toml check-yaml
 
 # clean Rust build artifacts
 clean-rust:
@@ -91,5 +106,14 @@ fix-rust-fmt:
 # fix common Rust issues automatically
 fix-rust: fix-rust-clippy fix-rust-check fix-rust-fmt
 
+# fix TOML formatting
+fix-toml-fmt:
+    @echo ::group::fix-toml-fmt
+    tombi format
+    @echo ::endgroup::
+
+# fix common TOML issues
+fix-toml: fix-toml-fmt
+
 # fix common issues automatically
-fix: fix-rust
+fix: fix-rust fix-toml

tombi.toml

@@ -0,0 +1,2 @@
+[files]
+exclude = [".jj/**/*.toml", "target/**/*.toml"]