Setup GIT commands

gistfile1.txt

#!/bin/bash

# setup_git_aliases.sh
# This script sets up useful Git aliases both as Git config aliases and shell aliases
# It checks if Git is installed first and provides feedback at each step

# Function to display messages with color
print_message() {
  echo -e "\033[1;34m$1\033[0m"
}

print_error() {
  echo -e "\033[1;31m$1\033[0m"
}

print_success() {
  echo -e "\033[1;32m$1\033[0m"
}

# Check if Git is installed
print_message "Checking if Git is installed..."
if ! command -v git &> /dev/null; then
  print_error "Git is not installed! Please install Git first."
  echo "On macOS: brew install git"
  echo "On Ubuntu/Debian: sudo apt install git"
  echo "On Fedora/RHEL: sudo dnf install git"
  exit 1
fi

GIT_VERSION=$(git --version)
print_success "✓ Git is installed: $GIT_VERSION"

# Set up Git configuration aliases
print_message "\nSetting up Git configuration aliases..."

# Define Git config aliases
git config --global alias.st status
git config --global alias.a add
git config --global alias.co checkout
git config --global alias.cob "checkout -b"
git config --global alias.br branch
git config --global alias.ci commit
git config --global alias.amend "commit --amend"
git config --global alias.unstage "reset HEAD --"
git config --global alias.last "log -1 HEAD"
git config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit"
git config --global alias.df diff
git config --global alias.dfs "diff --staged"
git config --global alias.pl pull
git config --global alias.ps push

print_success "✓ Git configuration aliases set up successfully"

# Detect shell and set up shell aliases
print_message "\nSetting up shell aliases..."

# Determine which shell config file to use
SHELL_NAME=$(basename "$SHELL")
SHELL_CONFIG_FILE=""

if [ "$SHELL_NAME" = "zsh" ]; then
  SHELL_CONFIG_FILE="$HOME/.zshrc"
elif [ "$SHELL_NAME" = "bash" ]; then
  # For bash, prefer .bashrc, but use .bash_profile on macOS if .bashrc doesn't exist
  if [ -f "$HOME/.bashrc" ]; then
    SHELL_CONFIG_FILE="$HOME/.bashrc"
  else
    SHELL_CONFIG_FILE="$HOME/.bash_profile"
  fi
else
  print_error "Unknown shell: $SHELL_NAME. Only zsh and bash are supported."
  exit 1
fi

print_message "Using shell config file: $SHELL_CONFIG_FILE"

# Define shell aliases
SHELL_ALIASES=(
  "alias g='git'"
  "alias gst='git status'"
  "alias ga='git add'"
  "alias gaa='git add --all'"
  "alias gc='git commit'"
  "alias gcm='git commit -m'"
  "alias gco='git checkout'"
  "alias gb='git branch'"
  "alias gd='git diff'"
  "alias gpl='git pull'"
  "alias gps='git push'"
  "alias gl='git log'"
  "alias glg='git lg'"
)

# Add aliases to shell config file, avoiding duplicates
for alias_def in "${SHELL_ALIASES[@]}"; do
  if ! grep -q "^$alias_def$" "$SHELL_CONFIG_FILE"; then
    echo "$alias_def" >> "$SHELL_CONFIG_FILE"
  fi
done

print_success "✓ Shell aliases added to $SHELL_CONFIG_FILE"

# Instructions for the user
print_message "\nGit aliases have been set up successfully!"
print_message "To start using the new shell aliases in this terminal session, run:"
echo "  source $SHELL_CONFIG_FILE"
print_message "\nAvailable Git aliases:"
echo "• git st / gst         → git status"
echo "• git a / ga           → git add"
echo "• git co / gco         → git checkout"
echo "• git cob              → git checkout -b (create and checkout branch)"
echo "• git br / gb          → git branch"
echo "• git ci / gc          → git commit"
echo "• gcm \"message\"        → git commit -m \"message\""
echo "• git amend            → git commit --amend"
echo "• git unstage          → git reset HEAD --"
echo "• git last             → git log -1 HEAD (show last commit)"
echo "• git lg / glg         → git log with pretty format"
echo "• git df / gd          → git diff"
echo "• git dfs              → git diff --staged"
echo "• git pl / gpl         → git pull"
echo "• git ps / gps         → git push"
echo "• g                    → git (shorthand for git command)"

# Set execute permissions on the script
chmod +x "$0"