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Build & Release workflow (HemantKArya/Melodfy)

The Build & Release workflow from HemantKArya/Melodfy, explained and optimized by Latchkey.

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Source: HemantKArya/Melodfy.github/workflows/main.ymlLicense MITView source

What it does

This is the Build & Release workflow from the HemantKArya/Melodfy repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: "Build & Release"

on:
    push: 
        branches: main

jobs:
    builds:
        name: Build & Release
        runs-on: windows-latest
        steps:
        - name: Checkout Repository
          uses: actions/checkout@v3
      
        # Setup Python
        - name: Setup Python
          uses: actions/setup-python@v4
          with:
            python-version: '3.11' # Version range or exact version of a Python version to use, using SemVer's version range syntax
            architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
            cache: 'pip'
        - run: |
            python -m pip install --upgrade pip
            pip install -r requirements.txt
            pip install Pillow
            pip install pyinstaller

        # Build python script into a stand-alone exe
        - name: Pyinstaller Build
          run: |
            pyinstaller Melodfy.spec
        - name: Download 7zip
          run: |
            Invoke-WebRequest https://www.7-zip.org/a/7zr.exe -OutFile 7zr.exe
        

        - name: Download ffmpeg-windows
          run: |
            Invoke-WebRequest https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-essentials.7z -OutFile ffmpeg-release-essentials.7z
            ./7zr.exe x ffmpeg-release-essentials.7z
            $ffmpegFolder = Get-ChildItem -Directory -Name | Where-Object { $_ -like "ffmpeg-*-essentials_build" }
            Move-Item "$ffmpegFolder/bin/ffmpeg.exe" "dist/Melodfy/_internal/"

        - name: move model.onnx
          run: |
            Invoke-WebRequest https://huggingface.co/krystv/piano_inference_onnx/resolve/main/model.onnx -OutFile model.onnx
            rm dist/Melodfy/_internal/models/model.onnx
            mv model.onnx dist/Melodfy/_internal/models/

        - name: Zip build
          run: |
            Compress-Archive -Path .\dist\Melodfy\ -DestinationPath .\dist\Melodfy_${{ runner.os }}_Build_${{ github.run_number }}.zip
            
        # Uploads artifact
        - name: Upload Artifacts
          uses: actions/upload-artifact@v4
          with:
            name: Melodfy_${{ runner.os }}_Build_v${{ github.run_number }}
            path: |
              dist/Melodfy_${{ runner.os }}_Build_${{ github.run_number }}.zip

        - name: Create Release
          uses: ncipollo/release-action@v1
          with:
            artifacts: "dist/Melodfy_${{ runner.os }}_Build_${{ github.run_number }}.zip"
            tag: v1.0.0+${{github.run_number}}
            token: ${{secrets.SECRET_KEY}}
            

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

 
name: "Build & Release"
 
on:
    push: 
        branches: main
 
concurrency:
    group: ${{ github.workflow }}-${{ github.ref }}
    cancel-in-progress: true
 
jobs:
    builds:
        name: Build & Release
        runs-on: windows-latest
        steps:
        - name: Checkout Repository
          uses: actions/checkout@v3
      
        # Setup Python
        - name: Setup Python
          uses: actions/setup-python@v4
          with:
              cache: 'pip'
            python-version: '3.11' # Version range or exact version of a Python version to use, using SemVer's version range syntax
            architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
            cache: 'pip'
        - run: |
            python -m pip install --upgrade pip
            pip install -r requirements.txt
            pip install Pillow
            pip install pyinstaller
 
        # Build python script into a stand-alone exe
        - name: Pyinstaller Build
          run: |
            pyinstaller Melodfy.spec
        - name: Download 7zip
          run: |
            Invoke-WebRequest https://www.7-zip.org/a/7zr.exe -OutFile 7zr.exe
        
 
        - name: Download ffmpeg-windows
          run: |
            Invoke-WebRequest https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-essentials.7z -OutFile ffmpeg-release-essentials.7z
            ./7zr.exe x ffmpeg-release-essentials.7z
            $ffmpegFolder = Get-ChildItem -Directory -Name | Where-Object { $_ -like "ffmpeg-*-essentials_build" }
            Move-Item "$ffmpegFolder/bin/ffmpeg.exe" "dist/Melodfy/_internal/"
 
        - name: move model.onnx
          run: |
            Invoke-WebRequest https://huggingface.co/krystv/piano_inference_onnx/resolve/main/model.onnx -OutFile model.onnx
            rm dist/Melodfy/_internal/models/model.onnx
            mv model.onnx dist/Melodfy/_internal/models/
 
        - name: Zip build
          run: |
            Compress-Archive -Path .\dist\Melodfy\ -DestinationPath .\dist\Melodfy_${{ runner.os }}_Build_${{ github.run_number }}.zip
            
        # Uploads artifact
        - name: Upload Artifacts
          uses: actions/upload-artifact@v4
          with:
            name: Melodfy_${{ runner.os }}_Build_v${{ github.run_number }}
            path: |
              dist/Melodfy_${{ runner.os }}_Build_${{ github.run_number }}.zip
 
        - name: Create Release
          uses: ncipollo/release-action@v1
          with:
            artifacts: "dist/Melodfy_${{ runner.os }}_Build_${{ github.run_number }}.zip"
            tag: v1.0.0+${{github.run_number}}
            token: ${{secrets.SECRET_KEY}}
            

What changed

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow