.git-prompt

#  SETUP CONSTANTS
#  Bunch-o-predefined colors.  Makes reading code easier than escape sequences.

# Reset
Color_Off="\[\033[0m\]"       # Text Reset

# Regular Colors
Black="\[\033[0;30m\]"        # Black
Red="\[\033[0;31m\]"          # Red
Green="\[\033[0;32m\]"        # Green
Yellow="\[\033[0;33m\]"       # Yellow
Blue="\[\033[0;34m\]"         # Blue
Purple="\[\033[0;35m\]"       # Purple
Cyan="\[\033[0;36m\]"         # Cyan
White="\[\033[0;37m\]"        # White

# Bold
BBlack="\[\033[1;30m\]"       # Black
BRed="\[\033[1;31m\]"         # Red
BGreen="\[\033[1;32m\]"       # Green
BYellow="\[\033[1;33m\]"      # Yellow
BBlue="\[\033[1;34m\]"        # Blue
BPurple="\[\033[1;35m\]"      # Purple
BCyan="\[\033[1;36m\]"        # Cyan
BWhite="\[\033[1;37m\]"       # White

# Underline
UBlack="\[\033[4;30m\]"       # Black
URed="\[\033[4;31m\]"         # Red
UGreen="\[\033[4;32m\]"       # Green
UYellow="\[\033[4;33m\]"      # Yellow
UBlue="\[\033[4;34m\]"        # Blue
UPurple="\[\033[4;35m\]"      # Purple
UCyan="\[\033[4;36m\]"        # Cyan
UWhite="\[\033[4;37m\]"       # White

# Background
On_Black="\[\033[40m\]"       # Black
On_Red="\[\033[41m\]"         # Red
On_Green="\[\033[42m\]"       # Green
On_Yellow="\[\033[43m\]"      # Yellow
On_Blue="\[\033[44m\]"        # Blue
On_Purple="\[\033[45m\]"      # Purple
On_Cyan="\[\033[46m\]"        # Cyan
On_White="\[\033[47m\]"       # White

# High Intensty
IBlack="\[\033[0;90m\]"       # Black
IRed="\[\033[0;91m\]"         # Red
IGreen="\[\033[0;92m\]"       # Green
IYellow="\[\033[0;93m\]"      # Yellow
IBlue="\[\033[0;94m\]"        # Blue
IPurple="\[\033[0;95m\]"      # Purple
ICyan="\[\033[0;96m\]"        # Cyan
IWhite="\[\033[0;97m\]"       # White

# Bold High Intensty
BIBlack="\[\033[1;90m\]"      # Black
BIRed="\[\033[1;91m\]"        # Red
BIGreen="\[\033[1;92m\]"      # Green
BIYellow="\[\033[1;93m\]"     # Yellow
BIBlue="\[\033[1;94m\]"       # Blue
BIPurple="\[\033[1;95m\]"     # Purple
BICyan="\[\033[1;96m\]"       # Cyan
BIWhite="\[\033[1;97m\]"      # White

# High Intensty backgrounds
On_IBlack="\[\033[0;100m\]"   # Black
On_IRed="\[\033[0;101m\]"     # Red
On_IGreen="\[\033[0;102m\]"   # Green
On_IYellow="\[\033[0;103m\]"  # Yellow
On_IBlue="\[\033[0;104m\]"    # Blue
On_IPurple="\[\033[10;95m\]"  # Purple
On_ICyan="\[\033[0;106m\]"    # Cyan
On_IWhite="\[\033[0;107m\]"   # White

# Various variables you might want for your PS1 prompt instead
Time12h="\T"
Time12a="\@"
PathShort="\w"
PathFull="\W"
NewLine="\n"
Jobs="\j"

export PS1="$BGreen\u@\h$BBlue $PathShort"'$( \
branch=$(__git_ps1); \
if [ -z "$branch" ]; then \
  # @2 - Prompt when not in GIT repo
  echo ""; \
else \
  if [ $branch == "(GIT_DIR!)" ]; then \
    # @6 - Git folders
    echo "'$White'"$(__git_ps1 " [%s]"); \
  else \
    nothing=$(git status | grep "nothing to commit"); \
    if [ -z "$nothing" ]; then \
      untracked=$(git status | grep "Untracked files"); \
      unstaged=$(git status | grep "Changes not staged for commit"); \
      if [ -z "$untracked" ] && [ -z "$unstaged" ]; then \
        # @7 - Files to commit, nothing untracked
        echo "'$Yellow' ["$(__git_ps1 "%s")]; \
      else \
        # @5 - Changes to working tree
        echo "'$Red'"$(__git_ps1 " {%s}"); \
      fi \
    else \
      GIT_CURRENT_BRANCH=$(git name-rev --name-only HEAD)
      unpushed=$(git log $GIT_CURRENT_BRANCH --not --remotes --oneline); \
      if [ -z "$unpushed" ]; then \
        # @4 - Clean repository - nothing to commit
        echo "'$Green'"$(__git_ps1 " (%s)"); \
      else \
        # @6 - Clean repository with unpushed commits
        echo "'$Cyan' ["$(__git_ps1 "%s")]; \
      fi \
    fi \
  fi \
fi)'"$Color_Off \$ "

Works on bash.

"source <.git-prompt.sh>" from .bashrc or similar is required.