ci: add zizmor workflow audits and harden workflows (#246)

Author: kibertoad

.github/dependabot.yml

@@ -5,11 +5,15 @@ updates:
     schedule:
       interval: daily
     open-pull-requests-limit: 10
+    cooldown:
+      default-days: 7
   - package-ecosystem: npm
     directory: "/"
     schedule:
       interval: daily
     open-pull-requests-limit: 10
+    cooldown:
+      default-days: 7
     ignore:
       - dependency-name: "@typescript-eslint/eslint-plugin"
       - dependency-name: "@typescript-eslint/parser"

.github/workflows/ci.yml

@@ -8,22 +8,29 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
 
     strategy:
       matrix:
         node-version: [18.x, 20.x, 22.x, 24.x]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v6
+        uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
 
       - name: Use Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'pnpm'
@@ -42,6 +49,6 @@ jobs:
       pull-requests: write
       contents: write
     steps:
-      - uses: fastify/github-action-merge-dependabot@v3
+      - uses: fastify/github-action-merge-dependabot@30c3f8f14a4f7b315ba38dbc1b793d27128fef82 # v3.12.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/coverage.yml

@@ -7,26 +7,32 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
     name: coverage
+    permissions:
+      contents: read
 
     strategy:
       matrix:
         node-version: [20.x]
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v6
+        uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
 
       - name: Setup Node ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           always-auth: false
           node-version: ${{ matrix.node-version }}
@@ -41,7 +47,7 @@ jobs:
           CI: true
 
       - name: Update Coveralls
-        uses: coverallsapp/github-action@master
+        uses: coverallsapp/github-action@5cbfd81b66ca5d10c19b062c04de0199c215fb6e # v2.3.7
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
         if: success()

.github/workflows/linting.yml

@@ -10,26 +10,32 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
     name: linting
+    permissions:
+      contents: read
 
     strategy:
       matrix:
         node-version: [20.x]
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v6
+        uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
 
       - name: Setup Node ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           always-auth: false
           node-version: ${{ matrix.node-version }}

.github/workflows/publish.yml

@@ -8,6 +8,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   publish:
     if: github.event.pull_request.merged == true && (contains(github.event.pull_request.labels.*.name, 'patch') || contains(github.event.pull_request.labels.*.name, 'minor') || contains(github.event.pull_request.labels.*.name, 'major'))
@@ -19,16 +22,16 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v6
+        uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: 24.x
           registry-url: 'https://registry.npmjs.org'
@@ -57,8 +60,10 @@ jobs:
           fi
 
       - name: Bump version
+        env:
+          VERSION_BUMP: ${{ steps.version.outputs.bump }}
         run: |
-          pnpm version ${{ steps.version.outputs.bump }} -m "chore: release v%s"
+          pnpm version "$VERSION_BUMP" -m "chore: release v%s"
           git push
           git push --tags
 

.github/workflows/zizmor.yml

@@ -0,0 +1,39 @@
+---
+
+name: zizmor
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  zizmor:
+    runs-on: ubuntu-latest
+    name: zizmor
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          fetch-depth: 1
+          persist-credentials: false
+
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@b1d7e1fb5de872772f31590499237e7cce841e8e # v0.5.3
+        with:
+          min-severity: medium
+          # advanced-security uses SARIF output, but zizmor's SARIF mode
+          # always exits 0, so the job wouldn't fail on findings.
+          # Disable it (and enable inline annotations instead) so medium+
+          # severity findings actually fail the workflow.
+          advanced-security: false
+          annotations: true

.github/zizmor.yml

@@ -0,0 +1,6 @@
+rules:
+  artipacked:
+    ignore:
+      # publish.yml needs persisted credentials so the workflow can
+      # push the version-bump commit and release tag back to main.
+      - publish.yml