checkout

#!/bin/bash

# Exit immediately if a command exits with a non-zero status
set -e

usageHelp() {
    echo "Usage: $0 <repository> [target-branch]"
    echo "  repository: The GitHub repository in the format 'user/repo'."
    echo "  example: ./ci/checkout \${{ github.repository }}"
}

# Check if the repository argument is provided
if [ -z "$1" ]; then
  usageHelp
  exit 1
fi

echo "Usage help"
usageHelp

REPOSITORY=$1
CURRENT_BRANCH=$(git branch --show-current)

echo "[TAG-GENERATOR] initializing..."
echo "  REPOSITORY=$REPOSITORY"


checkoutInfo() {
  LAST_COMMIT_HASH=$(git rev-parse --short HEAD)
  LAST_COMMIT_MSG=$(git log -1 --pretty=%B)

  echo "Last commit message from hash $CURRENT_BRANCH-$LAST_COMMIT_HASH:
  $LAST_COMMIT_MSG
  "
}

checkoutInfo

rm -rf .git

# Extract the project name from the REPOSITORY variable
PROJECT_NAME=$(echo "$REPOSITORY" | cut -d'/' -f2)
git clone "git@github.com:${REPOSITORY}.git"

# cd project with validation. If failed, exit.
cd "$PROJECT_NAME" || exit 1

git fetch --tags
git checkout tags/"$CURRENT_BRANCH-$LAST_COMMIT_HASH"

echo "After checkout"

checkoutInfo

echo "Current branch: in ($(pwd)) - $(git branch --show-current)"