Automation scripts for git

git-push-script.sh

RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
RESET=$(tput sgr0)

push() {
    validate_parameters $1 $2

    if [ $? -eq 0 ]; then

        check_git_repository

    	if [ $? -eq 0 ]; then 
            build_project 
        fi 
	
    	if [ $? -eq 0 ]; then 
            check_working_tree
        fi 

	if [ $? -eq 0 ]; then 
        check_changes_in_current_branch
    	fi 

	if [ $? -eq 0 ]; then

	    local commit_message="$1" 
 	    local target_branch="$2"

	    commit $commit_message

	    update_and_rebase_branch $target_branch

	    push_to_remote_repository
	fi
	
    else
        echo "${RED}\n[Parameter validation failed]\n${RESET}"
    fi
}

validate_parameters() {
    if [ -z "$1" ]; then
	echo "${RED}\n[Error: Commit message not provided.]\n${RESET}"
	return 1
    fi

    if [ -z "$2" ]; then
    	echo "${RED}\n[Error: Target branch not provided.]\n${RESET}"
	return 1
    fi
}

check_git_repository() {
    if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
        echo "Error: Current directory is not a Git repository."
    	return 1
    fi
}

build_project() {
    mvn clean install

    if [ $? -eq 0 ]; then
        echo "${GREEN}\n[Build successful]\n${RESET}"
	return 0
    fi 
}

check_working_tree() {
  if [ -z "$(git status --porcelain)" ]; then
	echo "${YELLOW}[No changes to commit]${RESET}"
        return 1
  else 
        return 0
  fi
}

check_changes_in_current_branch() {
    echo "${GREEN}\n[Stashing changes before pull]\n${RESET}"

    git stash

    git pull

    if [ $? -ne 0 ]; then
        echo "${YELLOW}\n[Merge conflicts detected. Resolve conflicts and press enter to continue.]\n${RESET}"
        read -p ""
        
        if git diff --quiet --staged; then
            echo "${RED}\n[Conflicts were not resolved. Returning to the terminal.]\n${RESET}"
            return   
        else
            git stash pop
            return 0 
        fi
    else
        git stash pop
    fi
}

commit() {
    echo "${GREEN}\n[Staging all files]\n${RESET}"
    git add . 

    local commit_message="$1"
    local final_message="$(get_ticket_number_from_current_branch) $commit_message"

    git commit -m "$final_message"
    echo "${GREEN}\n[Generated commit message: "$final_message"]\n${RESET}"
}

get_ticket_number_from_current_branch() {
    local current_branch
    current_branch=$(git rev-parse --abbrev-ref HEAD)

    ticket_number=$(echo "$current_branch" | cut -d'-' -f1-2)

    if [ "$ticket_number" != "$current_branch" ]; then
        echo "$ticket_number"
        return 0
    else
        echo "${YELLOW}\n[Invalid branch name format]\n${RESET}"
        return 1
    fi
}

update_and_rebase_branch() {
    local target_branch=$1
    
    echo "${GREEN}\n[Starting and update and rebase process]\n${RESET}"
    git fetch 

    if git rev-parse --verify "$target_branch" >/dev/null 2>&1; then
    	echo "${GREEN}\n[Updating branch '$target_branch' and rebasing with the current branch]\n${RESET}"

    	git checkout "$target_branch"
    	git pull origin "$target_branch"
    	git checkout -
    	git rebase "$target_branch"

    	if [ $? -ne 0 ]; then
            echo "${YELLOW}\n[Rebase conflicts detected. Returning to the terminal]\n${RESET}"
            return
    	fi      

    	echo "${GREEN}\n[Update and rebase complete]\n${RESET}"

    else 
	echo "${YELLOW}\n[Branch '$target_branch' doesn't exist, cannot proceed to rebase with current branch]\n${RESET}"
    fi
}	

push_to_remote_repository() {
    git push 

    current_branch=$(git rev-parse --abbrev-ref HEAD)

    if git ls-remote --exit-code origin "$current_branch" >/dev/null 2>&1; then
	    echo "${GREEN}\n[Your commits were pushed successfully!]\n${RESET}"
    else
        echo "${YELLOW}\n[Branch '$current_branch' not found in the remote repository. Pushing it now]\n${RESET}"

        git push -u origin "$current_branch"

	    echo "${GREEN}\n[Branch '$current_branch' pushed to the remote repository]\n${RESET}"
	    echo "${GREEN}\n[Your commits were pushed successfully!]\n${RESET}"
    fi
}