adaptado de outros. for git users.

custom_console

function git_state {
    if [[ $(which git 2> /dev/null) ]]
    then
        local STATUS
        local GIT_STATUS
        GIT_STATE=""
        STATUS=$(git status 2>/dev/null)
        if [[ -z $STATUS ]]
        then
            return
        fi
        if [[ "$STATUS" == *'working directory clean'* ]]
        then
            GIT_STATE=""
        else
            GIT_HEAD=$GIT_HEAD":"
            GIT_STATE=""
            if [[ "$STATUS" == *'Changes to be committed:'* ]]
            then
                GIT_STATE=$GIT_STATE'+I' # Index has files staged for commit
            fi
            if [[ "$STATUS" == *'Changed but not updated:'* ]]
            then
                GIT_STATE=$GIT_STATE"+M" # Working tree has files modified but unstaged
            fi
            if [[ "$STATUS" == *'Untracked files:'* ]]
            then
                GIT_STATE=$GIT_STATE'+U' # Working tree has untracked files
            fi
        fi
        echo "${GIT_STATE} "
    fi
}

function parse_git_branch {
  ref=$(git symbolic-ref HEAD 2> /dev/null) || return
echo "["${ref#refs/heads/}"]"
}

function get_author {
  echo $(git config user.name)
}

GREEN="\[\033[01;32m\]"
BLUE="\[\033[01;34m\]"
WHITE="\[\033[00m\]"
YELLOW="\[\033[0;33m\]"
RED="\[\033[1;31m\]"


export PS1="$GREEN\h $WHITE~\W $BLUE\$(get_author)$YELLOW \$(parse_git_branch)$RED\$(git_state)$WHITE$ "