ci: use yamlfmt binary directly

.github/scripts/get-yamlfmt.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+set -e
+
+if [ $# -ne 3 ]; then
+    echo "Usage: $0 <os> <arch> <version>"
+    echo "eg: $0 Linux x86_64 0.13.0"
+    exit 1
+fi
+
+OS="$1"
+ARCH="$2"
+VERSION="$3"
+
+cwd=$(pwd)
+
+temp_dir=$(mktemp -d)
+if [ ! -e ${temp_dir} ]; then
+    echo "Failed to create temporary directory."
+    exit 1
+fi
+
+cd $temp_dir
+
+curl -sSLO "https://github.com/google/yamlfmt/releases/download/v${VERSION}/yamlfmt_${VERSION}_${OS}_${ARCH}.tar.gz"
+curl -sSLO "https://github.com/google/yamlfmt/releases/download/v${VERSION}/checksums.txt"
+
+sha256sum --ignore-missing -c checksums.txt
+
+tar -xzf "yamlfmt_${VERSION}_${OS}_${ARCH}.tar.gz" -C ${temp_dir}/
+cd $cwd
+
+cp "${temp_dir}/yamlfmt" .
+
+rm -r ${temp_dir}

.github/workflows/lint-yml.yml

@@ -9,28 +9,14 @@ on:
     paths:
       - "**.yml"
 
-env:
-  GO_VERSION: '1.23.0'
-
 jobs:
   lint-yml:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dorny/paths-filter@v3
-        id: changes
-        with:
-          filters: |
-            yml:
-              - added|modified: '**.yml'
-      - name: Set up Go
-        if: steps.changes.outputs.yml == 'true'
-        uses: actions/setup-go@v5
-        with:
-          go-version: ${{ env.GO_VERSION }}
       - name: Get yamlfmt
-        if: steps.changes.outputs.yml == 'true'
-        run: go install github.com/google/yamlfmt/cmd/yamlfmt@latest
+        run: |
+          LATEST_VERSION=$(curl -s https://api.github.com/repos/google/yamlfmt/releases/latest | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' | sed 's/^v//')
+          ./.github/scripts/get-yamlfmt.sh "Linux" "x86_64" "$LATEST_VERSION"
       - name: Run yamlfmt
-        if: steps.changes.outputs.yml == 'true'
-        run: yamlfmt -lint -quiet $(find . -name '*.yml')
+        run: ./yamlfmt -lint -quiet $(find . -name '*.yml')