That prompt can be really slow, as it runs `__git_ps1` multiple times (through several branches of the conditional, and then for the final output). On my git.git repository, running `time __git_ps1` takes about .085s. If I hit the "cyan" condition in the prompt, we run it three times, and doing `time eval "echo \"$PS1"\""` takes about 0.263s, which feels noticeably laggy.<p>Changing it to cache the result, like this:<p><pre><code> export PS1=$LIGHT_GRAY"\u@\h"'$(
g=$(__git_ps1 " (%s)")
if [[ "$g" =~ \*\)$ ]]
then echo "'$YELLOW'$g"
elif [[ "$g" =~ \+\)$ ]]
then echo "'$MAGENTA'$g"
else echo "'$CYAN'$g"
fi)'$BLUE" \w"$GREEN": "
</code></pre>
drops it back down to the .085s range.