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# Colorscheme
readonly COLOR_CWD='blue'
readonly COLOR_GIT='cyan'
#readonly COLOR_SUCCESS='green'
readonly COLOR_SUCCESS='blue'
readonly COLOR_FAILURE='red'
#readonly COLOR_TIME='cyan'
readonly SYMBOL_GIT_BRANCH='⑂'
readonly SYMBOL_GIT_MODIFIED='*'
readonly SYMBOL_GIT_PUSH='↑'
readonly SYMBOL_GIT_PULL='↓'
readonly PS_SYMBOL='$'
_git_info() {
hash git 2>/dev/null || return # git not found
# get current branch
local ref=$(git symbolic-ref --short HEAD 2>/dev/null)
if [[ -n "$ref" ]]; then
# prepend branch symbol
ref=$SYMBOL_GIT_BRANCH$ref
else
# get most recent tag or abbreviated unique hash
ref=$(git describe --tags --always 2>/dev/null)
fi
[[ -n "$ref" ]] || return # not a git repo
local marks
# scan first two lines of output from `git status`
while IFS= read -r line; do
if [[ $line =~ ^## ]]; then # header line
[[ $line =~ ahead\ ([0-9]+) ]] && marks+=" $SYMBOL_GIT_PUSH$match[1]"
[[ $line =~ behind\ ([0-9]+) ]] && marks+=" $SYMBOL_GIT_PULL$match[1]"
else # branch is modified if output contains more lines after the header line
marks="$SYMBOL_GIT_MODIFIED$marks"
break
fi
done < <(git status --porcelain --branch 2>/dev/null) # note the space between the two <
# print without a trailing newline
printf " $ref$marks"
}
_config_prompt() {
# Color coding based on exit code of the previous command. Note this must
# be dealt with in the beginning of the function, otherwise the $? will not
# match the right command executed.
if [[ $? -eq 0 ]]; then
local symbol="%F{$COLOR_SUCCESS}$PS_SYMBOL%f"
else
local symbol="%F{$COLOR_FAILURE}$PS_SYMBOL%f"
fi
#local cwd="%F{$COLOR_CWD}%~%f"
local cwd="%F{$COLOR_CWD}%2~%f"
local git="%F{$COLOR_GIT}$(_git_info)%f"
#local time="%F{$COLOR_TIME}%D{%H:%M:%S}%f"
PROMPT="$cwd$git $symbol "
#RPROMPT="$time"
}
# useful zsh hook functions
precmd() { # run before each prompt
_config_prompt
}
preexec() { # run after user command is read and about to execute
}
chpwd() { # run when changing current working directory
}
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