74 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			74 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
#!/bin/bash
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set -x
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deforg="$1"
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defrepo="$2"
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defbranch="$3"
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[ -z "$defbranch" ] && defbranch="develop"
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rm -r "$defrepo" || true
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clone() {
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    org=$1
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    repo=$2
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    branch=$3
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    if [ -n "$branch" ]
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    then
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        echo "Trying to use $org/$repo#$branch"
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        git clone git://github.com/$org/$repo.git $repo --branch "$branch" --depth 1 && exit 0
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    fi
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}
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# Try the PR author's branch in case it exists on the deps as well.
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# First we check if GITHUB_HEAD_REF is defined,
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# Then we check if BUILDKITE_BRANCH is defined,
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# if they aren't we can assume this is a Netlify build
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if [ -n "$GITHUB_HEAD_REF" ]; then
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    head=$GITHUB_HEAD_REF
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elif [ -n "$BUILDKITE_BRANCH" ]; then
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	head=$BUILDKITE_BRANCH
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else
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    # Netlify doesn't give us info about the fork so we have to get it from GitHub API
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    apiEndpoint="https://api.github.com/repos/matrix-org/matrix-react-sdk/pulls/"
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    apiEndpoint+=$REVIEW_ID
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    head=$(curl $apiEndpoint | jq -r '.head.label')
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fi
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# If head is set, it will contain on Buildkite either:
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#   * "branch" when the author's branch and target branch are in the same repo
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#   * "fork:branch" when the author's branch is in their fork or if this is a Netlify build
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# We can split on `:` into an array to check.
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# For GitHub Actions we need to inspect GITHUB_REPOSITORY and GITHUB_ACTOR
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# to determine whether the branch is from a fork or not
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BRANCH_ARRAY=(${head//:/ })
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if [[ "${#BRANCH_ARRAY[@]}" == "1" ]]; then
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    if [ -n "$GITHUB_HEAD_REF" ]; then
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        if [[ "$GITHUB_REPOSITORY" == "$deforg"* ]]; then
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            clone $deforg $defrepo $GITHUB_HEAD_REF
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        else
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            REPO_ARRAY=(${GITHUB_REPOSITORY//\// })
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            clone $REPO_ARRAY[0] $defrepo $GITHUB_HEAD_REF
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        fi
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    else
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        clone $deforg $defrepo $BUILDKITE_BRANCH
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    fi
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elif [[ "${#BRANCH_ARRAY[@]}" == "2" ]]; then
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    clone ${BRANCH_ARRAY[0]} $defrepo ${BRANCH_ARRAY[1]}
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fi
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# Try the target branch of the push or PR.
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if [ -n $GITHUB_BASE_REF ]; then
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    clone $deforg $defrepo $GITHUB_BASE_REF
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elif [ -n $BUILDKITE_PULL_REQUEST_BASE_BRANCH ]; then
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    clone $deforg $defrepo $BUILDKITE_PULL_REQUEST_BASE_BRANCH
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fi
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# Try HEAD which is the branch name in Netlify (not BRANCH which is pull/xxxx/head for PR builds)
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clone $deforg $defrepo $HEAD
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# Use the default branch as the last resort.
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clone $deforg $defrepo $defbranch
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