From d5bde98df481dbbd7407e8d968f985da32220c64 Mon Sep 17 00:00:00 2001
From: Alan Pearce
Date: Sat, 19 Oct 2013 17:41:01 +0100
Subject: Update pure prompt

---
 zsh/functions/pure/prompt_pure_setup | 35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

(limited to 'zsh/functions/pure')

diff --git a/zsh/functions/pure/prompt_pure_setup b/zsh/functions/pure/prompt_pure_setup
index 1bbe267..275224a 100644
--- a/zsh/functions/pure/prompt_pure_setup
+++ b/zsh/functions/pure/prompt_pure_setup
@@ -18,8 +18,8 @@
 
 # fastest possible way to check if repo is dirty
 prompt_pure_git_dirty() {
-	# check if we're at the top level of a git repo
-	[[ -d .git ]] || return
+	# check if we're in a git repo
+	command git rev-parse --is-inside-work-tree &>/dev/null || return
 	# check if it's dirty
 	command git diff --quiet --ignore-submodules HEAD &>/dev/null
 
@@ -28,17 +28,24 @@ prompt_pure_git_dirty() {
 
 # displays the exec time of the last command if set threshold was exceeded
 prompt_pure_cmd_exec_time() {
-	local stop=`date +%s`
+	local stop=$(date +%s)
 	local start=${cmd_timestamp:-$stop}
 	integer elapsed=$stop-$start
 	(($elapsed > ${PURE_CMD_MAX_EXEC_TIME:=5})) && echo ${elapsed}s
 }
 
 prompt_pure_preexec() {
-	cmd_timestamp=`date +%s`
+	cmd_timestamp=$(date +%s)
 
 	# shows the current dir and executed command in the title when a process is active
-	print -Pn "\e]0;$PWD:t: $2\a"
+	print -Pn "\e]0;"
+	echo -nE "$PWD:t: $2"
+	print -Pn "\a"
+}
+
+# string length ignoring ansi escapes
+prompt_pure_string_length() {
+	echo ${#${(S%%)1//(\%([KF1]|)\{*\}|\%[Bbkf])}}
 }
 
 prompt_pure_precmd() {
@@ -48,7 +55,21 @@ prompt_pure_precmd() {
 	# git info
 	vcs_info
 
-	print -P '%F{blue}%~%F{11}$vcs_info_msg_0_`prompt_pure_git_dirty` $prompt_pure_username%f %F{yellow}`prompt_pure_cmd_exec_time`%f'
+	local prompt_pure_preprompt='\n%F{blue}%~%F{242}$vcs_info_msg_0_`prompt_pure_git_dirty` $prompt_pure_username%f %F{yellow}`prompt_pure_cmd_exec_time`%f'
+	print -P $prompt_pure_preprompt
+
+	# check async if there is anything to pull
+	{
+		# check if we're in a git repo
+		command git rev-parse --is-inside-work-tree &>/dev/null &&
+		# check check if there is anything to pull
+		command git fetch &>/dev/null &&
+		# check if there is an upstream configured for this branch
+		command git rev-parse --abbrev-ref @'{u}' &>/dev/null &&
+		(( $(command git rev-list --count HEAD...@'{u}' 2>/dev/null) > 0 )) &&
+		# some crazy ansi magic to inject the symbol into the previous line
+		print -Pn "\e7\e[A\e[1G\e[`prompt_pure_string_length $prompt_pure_preprompt`C%F{cyan}⇣%f\e8"
+	} &!
 
 	# reset value since `preexec` isn't always triggered
 	unset cmd_timestamp
@@ -72,7 +93,7 @@ prompt_pure_setup() {
 	[[ "$SSH_CONNECTION" != '' ]] && prompt_pure_username='%n@%m '
 
 	# prompt turns red if the previous command didn't exit with 0
-	PROMPT='%(?.%F{14}.%F{magenta})❯%f '
+	PROMPT='%(?.%F{magenta}.%F{red})❯%f '
 }
 
 prompt_pure_setup "$@"
-- 
cgit 1.4.1