Outline
After completing the development, the developer in charge of the development creates a PR(Pull Request) on GitHub and adds himself to the Assignees. However, it is cumbersome to add yourself to the Assignees every time you create a PR.
In this blog post, I will introduce how to automatically add the developer who created the PR to the Assignees using GitHub Actions.
Create GitHub Actions
To create a GitHub Actions that automatically adds Assignees to PRs, create a .github/workflows/auto-assign-assignees.yml file and modify it as follows.
name: Assign assignees
on:
pull_request:
types:
- opened
jobs:
assign:
name: Set assignees
runs-on: ubuntu-latest
timeout-minutes: 1
if: github.event.pull_request.user.login != 'dependabot[bot]'
steps:
- name: Set assignees
uses: actions/github-script@v7
with:
github-token: $
script: |
const { owner, repo } = context.repo
const prNumber = context.payload.pull_request.number
const response = await github.rest.issues.get({
owner,
repo,
issue_number: prNumber,
})
const { assignees } = response.data
if (assignees.length === 0) {
await github.rest.issues.addAssignees({
owner: owner,
repo: repo,
issue_number: prNumber,
assignees: [context.actor]
})
}
Let’s take a closer look at this GitHub Actions.
...
on:
pull_request:
types:
- opened
...
This GitHub Actions runs when a PR is created.
...
jobs:
assign:
...
if: github.event.pull_request.user.login != 'dependabot[bot]'
...
In my case, I use Dependabot on GitHub. Since Dependabot cannot be added to the Assignees of the PR created by Dependabot, I set it not to add Assignees to the PR created by Dependabot.
...
jobs:
assign:
...
steps:
- name: Set assignees
uses: actions/github-script@v7
with:
github-token: $
script: |
const { owner, repo } = context.repo
const prNumber = context.payload.pull_request.number
const response = await github.rest.issues.get({
owner,
repo,
issue_number: prNumber,
})
const { assignees } = response.data
if (assignees.length === 0) {
await github.rest.issues.addAssignees({
owner: owner,
repo: repo,
issue_number: prNumber,
assignees: [context.actor]
})
}
I used the GitHub Actions provided by GitHub to write code that adds the developer(context.actor) who creates a PR to the Assignees by using JavaScript code.
Completed
Done! We’ve seen how to create a GitHub Actions that automatically adds the developer who created the PR to the Assignees every time a PR is created. If you set the Assignees manually, try using this GitHub Actions to set the Assignees automatically.
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