GitHub Action
Get Latest Commit
A simple Github action to get the latest commit hash and description from another repository. No authentication required. This is adapted from pozetroninc/github-action-get-latest-release because the repo I was automating builds for do not create releases and I need to tag my docker builds.
Example Repository - https://github.com/nmbgeek/github-action-get-latest-commit
Inputs
| Name | Description | Example |
|---|---|---|
| owner | The Github user or organization that owns the repository | nmbgeek |
| repo | The repository name | github-action-get-latest-commit |
or
| Name | Description | Example |
|---|---|---|
| repository | The repository name in full | nmbgeek/github-action-get-latest-commit |
Additional Inputs (Optional)
| Name | Description | Example |
|---|---|---|
| branch | Specify branch. If blank the default branch, usually main, will be used. | |
| token | GitHub token or personal access token | ${{ secrets.GITHUB_TOKEN }} or ${{ secrets.PERSONAL_ACCESS_TOKEN }} |
Using the GITHUB_TOKEN will avoid the action failing due to hitting API rate limits from the IP address of the GitHub runner your action is running on. Using a PERSONAL_ACCESS_TOKEN is required to get the release information from a private repo. You can read about how to create a personal access token here and how to add this as a repository secret here.
Outputs
| Name | Description | Example |
|---|---|---|
| shorthash | First 7 of the commit's hash | 0bd441a |
| hash | Full sha hash for commit | 0bd441a8a1d62dc22fb3704... |
| description | Commit message | This is an example commit |
name: Docker Build and Push
on:
repository_dispatch:
types: [build-docker-image]
workflow_dispatch:
jobs:
build-and-push:
runs-on: ubuntu-latest
steps:
- id: lastcommit
uses: nmbgeek/github-action-get-latest-commit@main
with:
owner: abtassociates
repo: eva
branch: main
- name: set release date
run: |
echo "RELEASE_DATE=$(date --rfc-3339=date)" >> ${GITHUB_ENV}
- name: Log in to Docker Hub
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
- name: Build and push Docker image
uses: docker/build-push-action@v5
with:
push: true
tags: nmbgeek/eva-hud-hmis:latest, nmbgeek/eva-hud-hmis:${{ env.RELEASE_DATE }}, nmbgeek/eva-hud-hmis:${{ steps.lastcommit.outputs.shorthash }}To use the current repo:
with:
repository: ${{ github.repository }}To use authentication token:
with:
token: ${{ secrets.GITHUB_TOKEN }}