Develop

.github/workflows/codeql.yml

@@ -9,13 +9,16 @@
 # the `language` matrix defined below to confirm you have the correct set of
 # supported CodeQL languages.
 #
+
+# yamllint disable rule:line-length
 ---
-name: "CodeQL"
+name: 'CodeQL Advanced'
 
 on: # yamllint disable-line rule:truthy
   push:
+    branches: ['main', 'develop', 'feature/*']
   pull_request:
-  workflow_dispatch:
+    branches: ['main', 'develop', 'feature/*']
   schedule:
     #        ┌───────────── minute (0 - 59)
     #        │  ┌───────────── hour (0 - 23)
@@ -26,7 +29,10 @@ on: # yamllint disable-line rule:truthy
     #        │  │ │ │ │
     #        │  │ │ │ │
     #        *  * * * *
-    - cron: "24 19 * * 3"
+    - cron: '24 19 * * 3'
+
+permissions:
+  contents: read
 
 jobs:
   analyze:
@@ -35,10 +41,8 @@ jobs:
     #   - https://gh.io/recommended-hardware-resources-for-running-codeql
     #   - https://gh.io/supported-runners-and-hardware-resources
     #   - https://gh.io/using-larger-runners (GitHub.com only)
-    # Consider using larger runners or machines with greater resources
-    # for possible analysis time improvements.
-    runs-on: ${{ (matrix.language == 'swift' && 'macos-26') || 'ubuntu-26.04' }}
-    timeout-minutes: ${{ (matrix.language == 'swift' && 120) || 360 }}
+    # Consider using larger runners or machines with greater resources for possible analysis time improvements.
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
     permissions:
       # required for all workflows
       security-events: write
@@ -54,53 +58,54 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - language: actions
+            build-mode: none
           - language: csharp
             build-mode: autobuild
-            # yamllint disable rule:line-length
-            # CodeQL supports the following values keywords for 'language': 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'swift'
+            # CodeQL supports the following values keywords for 'language': 'actions', 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'rust', 'swift'
             # Use `c-cpp` to analyze code written in C, C++ or both
             # Use 'java-kotlin' to analyze code written in Java, Kotlin or both
             # Use 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
             # To learn more about changing the languages that are analyzed or customizing the build mode for your analysis,
             # see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/customizing-your-advanced-setup-for-code-scanning.
             # If you are analyzing a compiled language, you can modify the 'build-mode' for that language to customize how
             # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
-            # yamllint enable rule:line-length
     steps:
       - name: Checkout repository
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
+      # Add any setup steps before running the `github/codeql-action/init` action.
+      # This includes steps like installing compilers or runtimes (`actions/setup-node`
+      # or others). This is typically only required for manual builds.
+      # - name: Setup runtime (example)
+      #   uses: actions/setup-example@v1
+
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4.38.2
+        uses: github/codeql-action/init@v4
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
-          # yamllint disable rule:line-length
-
           # If you wish to specify custom queries, you can do so here or in a config file.
           # By default, queries listed here will override any specified in a config file.
           # Prefix the list here with "+" to use these queries and those in the config file.
 
           # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
           # queries: security-extended,security-and-quality
-          # yamllint enable rule:line-length
 
-      # yamllint disable rule:line-length
       # If the analyze step fails for one of the languages you are analyzing with
       # "We were unable to automatically build your code", modify the matrix above
       # to set the build mode to "manual" for that language. Then modify this step
       # to build your code.
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
-      # yamllint enable rule:line-length
-      - if: matrix.build-mode == 'manual'
+      - name: Run manual build steps
+        if: matrix.build-mode == 'manual'
         shell: bash
         run: |
-          echo 'If you are using a "manual" build mode for one or more of the' \
           dotnet build
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4.38.2
+        uses: github/codeql-action/analyze@v4
         with:
-          category: "/language:${{matrix.language}}"
+          category: '/language:${{matrix.language}}'

.github/workflows/docker-image.yml

@@ -13,6 +13,9 @@ env:
   IMAGE_NAME: algorithm-exercises-csharp
   ARTIFACT_NAME: algorithm-exercises-csharp_${{ github.sha }}
 
+permissions:
+  contents: read
+
 jobs:
   build-lint:
     name: 'Build Docker LINT image'

.github/workflows/dotnet-coverage.yml

@@ -8,17 +8,20 @@ name: dotNET Coverage
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   coverage:
-    name: "Run Coverage"
+    name: 'Run Coverage'
     strategy:
       fail-fast: false
-    runs-on: "windows-2025"
+    runs-on: 'windows-2025'
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - name: Setup .NET

.github/workflows/dotnet-lint.yml

@@ -8,27 +8,30 @@ name: dotNET Lint
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   lint:
-    name: "Run LINT"
+    name: 'Run LINT'
     strategy:
       fail-fast: false
       matrix:
         os:
-          - "windows-2022"
-          - "windows-2025"
-          - "ubuntu-24.04"
-          - "ubuntu-26.04"
-          - "macos-15"
-          - "macos-15-intel"
-          - "macos-26"
-          - "macos-26-intel"
+          - 'windows-2022'
+          - 'windows-2025'
+          - 'ubuntu-24.04'
+          - 'ubuntu-26.04'
+          - 'macos-15'
+          - 'macos-15-intel'
+          - 'macos-26'
+          - 'macos-26-intel'
         dotnet-version: [8.0.x, 9.0.x, 10.0.x]
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/dotnet-test.yml

@@ -8,27 +8,30 @@ name: dotNET Tests
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   test:
-    name: "Run Tests"
+    name: 'Run Tests'
     strategy:
       fail-fast: false
       matrix:
         os:
-          - "windows-2022"
-          - "windows-2025"
-          - "ubuntu-24.04"
-          - "ubuntu-26.04"
-          - "macos-15"
-          - "macos-15-intel"
-          - "macos-26"
-          - "macos-26-intel"
+          - 'windows-2022'
+          - 'windows-2025'
+          - 'ubuntu-24.04'
+          - 'ubuntu-26.04'
+          - 'macos-15'
+          - 'macos-15-intel'
+          - 'macos-26'
+          - 'macos-26-intel'
         dotnet-version: [8.0.x, 9.0.x, 10.0.x]
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/gitleaks.yml

@@ -15,7 +15,11 @@ on: # yamllint disable-line rule:truthy
     #        │  │ │ │ │
     #        │  │ │ │ │
     #        *  * * * *
-    - cron: "0 4 * * *" # run once a day at 4 AM
+    - cron: '0 4 * * *' # run once a day at 4 AM
+
+permissions:
+  contents: read
+
 jobs:
   scan:
     name: gitleaks

.github/workflows/hadolint.yml

@@ -11,10 +11,10 @@ name: Hadolint
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: ["main"]
+    branches: ['main']
   schedule:
     - cron: '33 15 * * 3'
 

.github/workflows/make-coverage-html.yml

@@ -7,15 +7,18 @@ name: Make Coverage HTML
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   make-coverage-html:
-    name: "Run make coverage/html and verify coverage HTML"
-    runs-on: "windows-2025"
+    name: 'Run make coverage/html and verify coverage HTML'
+    runs-on: 'windows-2025'
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - name: Setup .NET

.github/workflows/markdown-lint.yml

@@ -3,10 +3,10 @@ name: Markdown Lint
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
 env:

.github/workflows/prettier-json.yml

@@ -3,16 +3,19 @@ name: Prettier JSON Lint
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   json-lint:
-    name: "Prettier JSON Lint"
-    runs-on: ["ubuntu-26.04"]
+    name: 'Prettier JSON Lint'
+    runs-on: ['ubuntu-26.04']
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 

.github/workflows/sonarcloud.yml

@@ -3,11 +3,14 @@ name: SonarCloud
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     types: [opened, synchronize, reopened]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build and analyze
@@ -25,7 +28,7 @@ jobs:
         with:
           java-version: 25
           # Alternative distribution options are available.
-          distribution: "temurin"
+          distribution: 'temurin'
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           # Shallow clones should be disabled for a better relevancy of analysis

.github/workflows/yamllint.yml

@@ -3,12 +3,15 @@ name: YAML lint
 
 on: # yamllint disable-line rule:truthy
   push:
-    branches: ["main"]
+    branches: ['main']
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: ["main"]
+    branches: ['main']
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     name: YAML Lint