To see it, go to your GitHub repository in a web browser, and switch to the Actions tab, e.g. The GitHub action will run immediately when after the push. Now add this file to the repository and push it to GitHub git add. uses: uses: run: python -c "print('Hello GitHub Actions')" github/workflows/hello_workflow.ymlĬopy into this file the below text (we will explain this later) name: hello_workflow github/workflows/hello_workflow.yml in a text editor, e.g. via nano. githubĪnd next create the workflows directory within that mkdir. To start, we will create a workflow that will just print hello. You can add as many workflows as you wish to a single repository. Each file describes a different workflow. You add GitHub Actions to a GitHub repository by adding files into the hidden directory. The MetaWards project uses GitHub Actions for all of these tasks (indeed, using continuous integration to create and deploy software packages and websites is called Continuous Deployment, or CD, so GitHub Actions is better called a CI/CD service). Typically though, your actions will take minutes rather than hours, so it is unlikely you will run into these limits.Īctions could be used, for example, for compiling and testing software, creating installation packages, auto-generating documentation, and rendering and uploading a website. You can also use your own computer as a “self-hosted runner”.Īctions can be composed into workflows, with each action limited to 6 hours of execution time, and the whole workflow limited to 72 hours. You get unlimited minutes of actions against public repositories, and 2000 minutes per month for private repositories ( see here). Your action can do anything you want, subject to some limits that are described here. You can set up actions that will run on a range of operating systems (Windows, macOS and Linux), against a range of different software. GitHub Actions is a free service that is provided by GitHub and is closely integrated. You can also setup and run your own via GitLab and GitLab runner. There are many continuous integration services, for example Travis and GitHub Actions. Or it could be that you want to automatically run an analysis and regenerate graphs whenever new data is added.Ĭontinuous integration (CI) is the name given to the set of automated actions that can be performed against the files in a repository whenever there is a new commit. Or it could include automatically generating reports, websites or other output documents by assembling the files within the repository. Tasks could include automatically testing that the project is still sane (e.g. by running some tests against all documents in the repository). It is quite common, when working collaboratively, that you need to automatically run some tasks when people make changes to the project. GitHub Actions and Continuous Integration (CI)
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