Create Release Branch from Develop for Multiple Bitbucket Repositories

Overview

This script automates the process of creating a release branch from the develop branch for multiple Bitbucket repositories. It ensures that a new branch is only created if it does not already exist.

Features

Reads a list of Bitbucket repository URLs from a file.
Clones each repository (if not already cloned).
Fetches the latest changes from the remote repository.
Checks if the release branch already exists.
Creates and pushes the new branch only if it does not exist.

Shell Script: `create_release_branch.sh`

#!/bin/bash

# Configuration
RELEASE_BRANCH="release-$(date +%Y%m%d)"  # Change naming convention if needed
REPO_LIST="bitbucket_repos.txt"  # File containing the list of Bitbucket repo URLs
BASE_BRANCH="develop"

# Ensure the repo list file exists
if [[ ! -f "$REPO_LIST" ]]; then
    echo "Error: Repository list file '$REPO_LIST' not found."
    exit 1
fi

# Process each repository
while read -r REPO_URL; do
    if [[ -z "$REPO_URL" || "$REPO_URL" =~ ^# ]]; then
        continue
    fi

    # Extract repo name from URL
    REPO_NAME=$(basename -s .git "$REPO_URL")

    echo "Processing repository: $REPO_NAME"

    # Clone the repository if not already present
    if [[ ! -d "$REPO_NAME" ]]; then
        echo "Cloning repository..."
        git clone "$REPO_URL" "$REPO_NAME"
    fi

    # Change into repo directory
    cd "$REPO_NAME" || exit

    # Fetch latest updates
    git fetch --all

    # Check if the branch already exists remotely
    if git ls-remote --heads origin "$RELEASE_BRANCH" | grep -q "$RELEASE_BRANCH"; then
        echo "Branch '$RELEASE_BRANCH' already exists. Skipping..."
    else
        # Create the release branch from develop and push it
        echo "Creating and pushing release branch '$RELEASE_BRANCH'..."
        git checkout "$BASE_BRANCH"
        git pull origin "$BASE_BRANCH"
        git checkout -b "$RELEASE_BRANCH"
        git push origin "$RELEASE_BRANCH"
        echo "Branch '$RELEASE_BRANCH' created successfully."
    fi

    # Move back to parent directory
    cd ..

done < "$REPO_LIST"

echo "Script execution completed."

How to Use

Prepare the Repository List

Create a file named bitbucket_repos.txt and list Bitbucket repository URLs, one per line. Put a new line at the end.

# This is a list of Bitbucket repositories
https://bitbucket.org/team/repo1.git
# https://bitbucket.org/team/repo2.git (Disabled for now)
https://bitbucket.org/team/repo3.git

Make the Script Executable Run the following command to grant execution permissions:

chmod +x create_release_branch.sh

Run the Script Execute the script with:

./create_release_branch.sh

What This Script Does

Reads repository URLs from bitbucket_repos.txt.
Clones each repo if not already cloned.
Fetches the latest branches from the remote repository.
Checks if the release branch (e.g., release-20250203) already exists.
If the branch exists, it skips creating a new one.
If it doesn’t exist, it creates and pushes it.

Notes

The release branch name follows the pattern release-YYYYMMDD. Modify the RELEASE_BRANCH variable if needed.
If the repository is already cloned, it fetches the latest changes instead of cloning again.

How to Run the Script

Open a terminal.
Navigate to the directory where the script is saved.
Ensure you have the required permissions by running:

chmod +x create_release_branch.sh

Run the script:

./create_release_branch.sh

ashutoshsahoo/Create-Release-Branch.MD