Script to sync multiple git repositories from master to a given branch

sync-branches.sh

#!/bin/bash
# Description: Syncs target branch with latest master, trying multiple clone paths if needed
# Usage: ./sync-branches.sh <target-branch> <repo1> <repo2> ... 

set -eo pipefail

# Formatting
BOLD="\033[1m"
CYAN="\033[0;36m"
RED="\033[0;31m"
GREEN="\033[0;32m"
YELLOW="\033[1;33m"
RESET="\033[0m"

# Configuration
SOURCE_BRANCH="master"
REMOTE="origin"
GITLAB_DEVELOPMENT="[email protected]:flywire/development"
GITLAB_SRE="[email protected]:flywire/sre"

show_help() {
  echo -e "${BOLD}${CYAN}Usage:${RESET} $0 ${BOLD}<target-branch>${RESET} ${BOLD}<repo1>${RESET} [repo2] ..."
  echo -e "Example: $0 poc-sandemo frontend backend"
}

# Validate arguments
if [[ $# -lt 2 ]]; then
  echo -e "${RED}✖ Error: You must specify a target branch and at least one repository${RESET}"
  show_help
  exit 1
fi

TARGET_BRANCH="$1"
shift  # Remove target branch from arguments

# Process repositories
for repo_name in "$@"; do
  echo -e "\n${BOLD}${CYAN}=== Processing: ${repo_name} ===${RESET}"

  # Auto-cloning with fallback
  if [[ ! -d "$repo_name" ]]; then
    echo -e "${YELLOW}⚡ Directory not found, attempting to clone...${RESET}"
    
    # Try development path first
    clone_url="${GITLAB_DEVELOPMENT}/${repo_name}.git"
    if git clone "$clone_url" "$repo_name" --quiet 2>/dev/null; then
      echo -e "${GREEN}✔ Cloned from development group${RESET}"
    else
      # Fallback to SRE path
      echo -e "${YELLOW}⚠ Failed in development, trying SRE...${RESET}"
      clone_url="${GITLAB_SRE}/${repo_name}.git"
      
      if git clone "$clone_url" "$repo_name" --quiet 2>/dev/null; then
        echo -e "${GREEN}✔ Cloned from SRE group${RESET}"
      else
        echo -e "${RED}✖ Failed to clone from:${RESET}"
        echo -e "${RED}  - ${GITLAB_DEVELOPMENT}/${repo_name}.git"
        echo -e "${RED}  - ${GITLAB_SRE}/${repo_name}.git${RESET}"
        continue
      fi
    fi
  fi

  # Validate Git repository
  if [[ ! -d "${repo_name}/.git" ]]; then
    echo -e "${RED}✖ Not a Git repository: ${repo_name}${RESET}"
    continue
  fi

  # Execute Git operations
  pushd "$repo_name" >/dev/null
  
  echo -e "${YELLOW}⬇ Fetching changes from ${SOURCE_BRANCH}...${RESET}"
  if ! git fetch "$REMOTE" "$SOURCE_BRANCH" --quiet 2>/dev/null; then
    echo -e "${RED}✖ Failed to fetch changes in ${repo_name}${RESET}"
    popd >/dev/null
    continue
  fi

  echo -e "${YELLOW}⬆ Pushing to ${TARGET_BRANCH}...${RESET}"
  if git push "$REMOTE" "${REMOTE}/${SOURCE_BRANCH}:${TARGET_BRANCH}" --force \
    -o ci.variable="SKIP_MANUAL=true" \
    -o ci.variable="FULL_PIPELINE=true" --quiet 2>/dev/null; then
    echo -e "${GREEN}✔ ${TARGET_BRANCH} updated in ${repo_name}${RESET}"
  else
    echo -e "${RED}✖ Failed to push in ${repo_name}${RESET}"
  fi

  popd >/dev/null
done

echo -e "\n${BOLD}${GREEN}✅ Process completed!${RESET}"