我的 .bash_profile 显示存储库的 git 分支不再工作

Question

我上次使用它是在 2016 年，当时使用的是旧版本的 Mac OS。我现在使用的是10.3.1。

# This file is sourced by bash for login shells. The following line
# runs your .bashrc and is recommended by the bash info pages.
if [[ -f ~/.bashrc ]] ; then
    . ~/.bashrc
fi

# Get current git branch
function parse_git_branch() {
    BRANCH=`git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'`
    if [ ! "${BRANCH}" == "" ]
    then
            STAT=`parse_git_dirty`
            echo "[${BRANCH}${STAT}] "
    else
            echo ""
    fi
}

# Get repository's current status
function parse_git_dirty {
    status=`git status 2>&1 | tee`
    dirty=`echo -n "${status}" 2> /dev/null | grep "modified:" &> /dev/null; 
echo "$?"`
    untracked=`echo -n "${status}" 2> /dev/null | grep "Untracked files" &> 
/dev/null; echo "$?"`
    ahead=`echo -n "${status}" 2> /dev/null | grep "Your branch is ahead of" &> /dev/null; echo "$?"`
    newfile=`echo -n "${status}" 2> /dev/null | grep "new file:" &> /dev/null; echo "$?"`
    renamed=`echo -n "${status}" 2> /dev/null | grep "renamed:" &> /dev/null; echo "$?"`
    deleted=`echo -n "${status}" 2> /dev/null | grep "deleted:" &> /dev/null; echo "$?"`
    bits=''
    if [ "${renamed}" == "0" ]; then
            bits=">${bits}"
    fi
    if [ "${ahead}" == "0" ]; then
            bits="*${bits}"
    fi
    if [ "${newfile}" == "0" ]; then
            bits="+${bits} "
    fi
    if [ "${untracked}" == "0" ]; then
            bits="?${bits}"
    fi
    if [ "${deleted}" == "0" ]; then
            bits="x${bits}"
    fi
    if [ "${dirty}" == "0" ]; then
            bits="!${bits}"
    fi
    if [ ! "${bits}" == "" ]; then
            echo "${bits}"
    else
            echo ""
    fi
}

# Custom command line
export PS1="\n\[\e[1m\e[38;5;57m\]\w \[\e[0m\e[38;5;66m\]\`parse_git_branch\`\n\[\e[38;5;45m\]\$(date +%H:%M:%S) \[\e[38;5;57m\]» \[\e[38;5;15m\]"

# Custom ls colours
export LS_COLORS=$LS_COLORS:'di=1;32:'

这是它显示的内容

\n\[\e[1m\e[38;5;57m\]\w \[\e[0m\e[38;5;66m\]`parse_git_branch`\n\[\e[38;5;45m\]$(date +:samuels-mbp.lan:) \[\e[38;5;57m\]» \[\e[38;5;15m\]