Fish prompt

fish_prompt.fish

function parse_git_dirty
	set -x git_output (git status 2> /dev/null | tail -n1) 
	if test $git_output
		if test $git_output = "nothing to commit, working directory clean"
			echo -n green
                        return
		else
			echo -n yellow
                        return
		end
	end
        echo -n normal
end

function parse_git_branch
	git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/ [git:\1]/"
end

# bzr (expects to use bzr-colo: https://launchpad.net/bzr-colo)

function parse_bzr_dirty
	set -x bzr_output (bzr st 2> /dev/null | tail -n1)
        if test -z $bzr_output
                echo -n green
                return
        else
                echo -n yellow
                return
        end
        echo -n normal
end

function parse_bzr_branch
	bzr colo-branches 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/ [bzr:\1]/"
end

# hg

function parse_hg_dirty
	set -x hg_output (hg status 2> /dev/null | tail -n1)
        if test -z $hg_output
                echo -n green
                return
        else
                echo -n yellow
                return
        end
        echo -n normal
end

function parse_hg_branch
        hg branches 2> /dev/null | cut -d ' ' -f 1 | sed -e "s/\(.*\)/ [hg:\1]/"
end

# combined

function parse_dvcs_branch
        set_color (parse_bzr_dirty)
	echo -n (parse_bzr_branch)
	set_color normal

        set_color (parse_git_dirty)
	echo -n (parse_git_branch)
	set_color normal

        set_color (parse_hg_dirty)
        echo -n (parse_hg_branch)
        set_color normal
end

# Only intended as inspiration - captures info pertinent to Zac's setup

function fish_prompt
	echo -n (whoami)@(hostname -s)" "
	set_color $fish_color_cwd
	echo -n (prompt_pwd)
	echo (parse_dvcs_branch)
	set_color normal
	echo -n '$ '
end