49 lines
1.7 KiB
Bash
Executable file
49 lines
1.7 KiB
Bash
Executable file
#!/bin/bash
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set -eo pipefail
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# Input args
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if [ -z "$1" ]; then
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echo "Error: No base branch argument provided or empty string given."
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echo "Usage: $0 <base-branch>"
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exit 1
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fi
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base_branch=$1
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# Initialize variables to store the latest release branch and merge base
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latest_branch=""
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latest_merge_base=""
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# Source refs to find branches from
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local_refs="refs/heads/releases/*" # For debug and development
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remote_refs=$(git for-each-ref --sort=-committerdate --format="%(refname:short)" refs/remotes/origin/ | grep -E "origin/[a-zA-Z0-9._-]+_pre_release$")
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# Iterate over all remote release branches sorted by commit date (most recent first)
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for branch in $remote_refs; do
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# Find the common ancestor (merge base) between the base branch and the current branch
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merge_base=$(git merge-base "$base_branch" "$branch")
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echo "Merge base for branches '$branch' and '$base_branch' is '$merge_base'"
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# Update the latest branch and merge base if the current merge base is a descendant of the latest merge base
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if [ -z "$latest_merge_base" ] || git merge-base --is-ancestor "$latest_merge_base" "$merge_base"; then
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latest_branch="$branch"
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latest_merge_base="$merge_base"
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fi
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done
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echo "Latest branch: $latest_branch"
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echo "Latest merge base: $latest_merge_base"
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# Output validation
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if [ -z "$latest_branch" ]; then
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echo "Error: Can't find the latest 'pre_release' branch for the base branch '$base_branch'"
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exit 2
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fi
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# Stripping 'origin/' prefix if needed
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latest_branch="${latest_branch#origin/}"
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echo "$latest_branch" > "find-latest-pre-release-branch.output"
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echo "Latest 'pre_release' branch created from '$base_branch' or its ancestor: '$latest_branch'"
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