Download last github action artifact of a given repository and branch

download_artifact.sh

#!/bin/bash

set -e 

cd /tmp

# Define the repository and branch name
repo=$1
branch=$2
token=$3

# Get the artifacts of the repository
curl -H "Authorization: Bearer $token" -s "https://api.github.com/repos/$repo/actions/artifacts" | jq -r  --arg branch "$branch" '.artifacts[] | select(.workflow_run.head_branch == $branch) | .archive_download_url' > artifact_url.txt

# Read the first line of the artifact URL
artifact_url=$(head -n 1 artifact_url.txt)

echo $artifact_url

# Download the artifact
wget -v --header="Authorization: Bearer $token" -O artifact.zip $artifact_url

# Extract the artifact
unzip -o artifact.zip

# Remove the artifact URL file
rm artifact_url.txt

Usage :

download_artifact.sh <owner/repo> <branch> <github_token>