GitHub_Workflow.md

Setup a GitHub workflow for Windows and Linux OS

• Create a file hello.c with below content and add to the repository

#include <stdio.h>
int main()
{
    printf("Welcome to Github Actions.\n********* Its Working*******\n");
    return 0;
}

Preparation

• In the repository, click on Actions tab and create a new workflow either from existing or a new workflow.

Create actions

Build action for Linux OS

• Add the below content into the .yml file and commit to repository

name: Linux C/C++ CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: build
      run: gcc hello.c -o hello.exe
    - name: Run
      run: ./hello.exe

Work flow for Linux

Build action for Windows OS

• Add the below content into the .yml file and commit to repository

name: Windows C/C++ CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:

    runs-on: windows-latest

    steps:
    - uses: actions/checkout@v2
    - name: build
      run: gcc hello.c -o hello.exe
    - name: Run
      run: .\hello.exe

Work flow for Windows

• Verify that the files you created are under the path your_repo_name/.github/workflows
• Also click on Actions tab and verify that the newly added actions are present.

Verification

• Make a small change to the hello.c file and commit changes to trigger the build actions.

#include <stdio.h>
int main()
{
    printf("Welcome to Github Actions\n");
    printf("\n******Hurry, It works******\n");
    return 0;
}

Triggering Workflow

Verify that the actions are triggered and build is successful

• Under Actions tab, check that the build works are triggered and wait for them to complete.
• When color changes to Green (Build is successful) or Red (Build is failing) its complete.
• Now open any one action and verify if you got the expected outputunder the Run command.
• Click on any Workflow, and select build on the left side and expand teh Run command and check that the output is printed.

Workflow in action

Workflow Output

• The build and run commands can be replaced with Makefile commands to setup the build actions for projects with Makefiles