Replace dprint prettier plugin with yamlfmt

.github/workflows/lint.yml

@@ -15,6 +15,17 @@ jobs:
         with:
           dprint-version: '0.45.1' # selfup { "regex": "\\d[^']+", "script": "dprint --version | cut -d ' ' -f 2" }
 
+  yamlfmt:
+    timeout-minutes: 15
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+      - name: Install yamlfmt
+        run: go install github.com/google/yamlfmt/cmd/[email protected] # TODO: Apply selfup after https://github.com/google/yamlfmt/pull/180
+      - run: yamlfmt -lint .
+
   typos:
     timeout-minutes: 15
     runs-on: ubuntu-latest

.vscode/extensions.json

@@ -4,6 +4,7 @@
     "editorconfig.editorconfig",
     "tekumara.typos-vscode",
     "dprint.dprint",
+    "kachick.vscode-yamlfmt",
     "jnoortheen.nix-ide"
   ]
 }

.vscode/settings.json

@@ -1,6 +1,12 @@
 {
   "editor.defaultFormatter": "dprint.dprint",
   "editor.formatOnSave": true,
+  "[yaml]": {
+    "editor.defaultFormatter": "kachick.vscode-yamlfmt"
+  },
+  "[github-actions-workflow]": {
+    "editor.defaultFormatter": "kachick.vscode-yamlfmt"
+  },
   "[nix]": {
     "editor.defaultFormatter": "jnoortheen.nix-ide"
   },

Rakefile

@@ -4,12 +4,14 @@ desc 'Print dependencies'
 task :deps do
   sh('ruby --version')
   sh('dprint --version')
+  sh('yamlfmt -version')
   sh('typos --version')
 end
 
 desc 'Run linters'
 task :lint do
   sh('typos . .github .vscode')
   sh('dprint check')
+  sh('yamlfmt -lint .')
   sh('nixpkgs-fmt --check ./*.nix')
 end

dprint.json

@@ -1,14 +1,9 @@
 {
   "json": {},
   "markdown": {},
-  "prettier": {
-    "printWidth": 120,
-    "singleQuote": true
-  },
   "excludes": ["**/*lock", "lib/**", "doc/**", ".yardoc"],
   "plugins": [
     "https://plugins.dprint.dev/json-0.19.2.wasm",
-    "https://plugins.dprint.dev/markdown-0.16.4.wasm",
-    "https://plugins.dprint.dev/prettier-0.39.0.json@896b70f29ef8213c1b0ba81a93cee9c2d4f39ac2194040313cd433906db7bc7c"
+    "https://plugins.dprint.dev/markdown-0.16.4.wasm"
   ]
 }

flake.nix

@@ -24,6 +24,7 @@
 
               ruby_3_2
               dprint
+              yamlfmt
               nil
               nixpkgs-fmt
               typos

yamlfmt.yml

@@ -0,0 +1,7 @@
+gitignore_excludes: true
+line_ending: lf
+formatter:
+  type: basic
+  retain_line_breaks_single: true
+  # https://github.com/google/yamlfmt/issues/182
+  scan_folded_as_literal: true