From 3fa088128157d99aebad87674196c46397817924 Mon Sep 17 00:00:00 2001
From: Christophe Aguettaz <git@caguettaz.net>
Date: Mon, 25 Jan 2016 20:02:50 +0100
Subject: [PATCH 1/2] [bugfix] Fixed performance issue with git prompt

The git prompt would could bash to use 100% CPU
for large amounts of time when dealing with long
`git status` outputs.
---
 themes/base.theme.bash | 41 +++++++++++++++++++++++++++++++++++------
 1 file changed, 35 insertions(+), 6 deletions(-)

diff --git a/themes/base.theme.bash b/themes/base.theme.bash
index c491e5e5..962df15a 100644
--- a/themes/base.theme.bash
+++ b/themes/base.theme.bash
@@ -92,19 +92,48 @@ function scm_prompt_info {
   [[ $SCM == $SCM_SVN ]] && svn_prompt_info && return
 }
 
+function git_status_summary {
+  awk '
+  {
+    if (!after_first && $0 ~ /^##.+/) {
+      print $0
+      seen_header = 1
+    } else if ($0 ~ /^\?\? .+/) {
+      untracked += 1
+    } else {
+      if ($0 ~ /^.[^ ] .+/) {
+        unstaged += 1
+      }
+      if ($0 ~ /^[^ ]. .+/) {
+        staged += 1
+      }
+    }
+    after_first = 1
+  }
+  END {
+    if (!seen_header) {
+      print
+    }
+    print untracked
+    print unstaged
+    print staged
+  }'
+}
+
 function git_prompt_vars {
   local details=''
   SCM_STATE=${GIT_THEME_PROMPT_CLEAN:-$SCM_THEME_PROMPT_CLEAN}
   if [[ "$(git config --get bash-it.hide-status)" != "1" ]]; then
     [[ "${SCM_GIT_IGNORE_UNTRACKED}" = "true" ]] && local git_status_flags='-uno'
-    local status="$(git status -b --porcelain ${git_status_flags} 2> /dev/null ||
-		            git status --porcelain ${git_status_flags} 2> /dev/null)"
-    if [[ -n "${status}" ]] && [[ "${status}" != "\n" ]] && [[ -n "$(grep -v ^# <<< "${status}")" ]]; then
+    readarray -t status_lines < <((git status --porcelain ${git_status_flags} -b 2> /dev/null ||
+		                               git status --porcelain ${git_status_flags} 2> /dev/null) | git_status_summary )
+    local status="${status_lines[0]}"
+    local untracked_count="${status_lines[1]}"
+    local unstaged_count="${status_lines[2]}"
+    local staged_count="${status_lines[3]}"
+    if [[ "${untracked_count}" -gt 0 || "${unstaged_count}" -gt 0 || "${staged_count}" -gt 0 ]]; then
       SCM_DIRTY=1
       if [[ "${SCM_GIT_SHOW_DETAILS}" = "true" ]]; then
-        local untracked_count="$(egrep -c '^\?\? .+' <<< "${status}")"
-        local unstaged_count="$(egrep -c '^.[^ ?#] .+' <<< "${status}")"
-        local staged_count="$(egrep -c '^[^ ?#]. .+' <<< "${status}")"
         [[ "${staged_count}" -gt 0 ]] && details+=" ${SCM_GIT_STAGED_CHAR}${staged_count}" && SCM_DIRTY=3
         [[ "${unstaged_count}" -gt 0 ]] && details+=" ${SCM_GIT_UNSTAGED_CHAR}${unstaged_count}" && SCM_DIRTY=2
         [[ "${untracked_count}" -gt 0 ]] && details+=" ${SCM_GIT_UNTRACKED_CHAR}${untracked_count}" && SCM_DIRTY=1

From a2ac5b0096c41212730995b5d0e67d8713655e8f Mon Sep 17 00:00:00 2001
From: Christophe Aguettaz <git@caguettaz.net>
Date: Tue, 26 Jan 2016 20:05:47 +0100
Subject: [PATCH 2/2] Fixed compatibility with older bash versions.

Older versions (like 3.2, current default on MacOS X) don't implement
readarray.
---
 themes/base.theme.bash | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/themes/base.theme.bash b/themes/base.theme.bash
index 962df15a..ee906dee 100644
--- a/themes/base.theme.bash
+++ b/themes/base.theme.bash
@@ -114,9 +114,7 @@ function git_status_summary {
     if (!seen_header) {
       print
     }
-    print untracked
-    print unstaged
-    print staged
+    print untracked "\t" unstaged "\t" staged
   }'
 }
 
@@ -125,12 +123,11 @@ function git_prompt_vars {
   SCM_STATE=${GIT_THEME_PROMPT_CLEAN:-$SCM_THEME_PROMPT_CLEAN}
   if [[ "$(git config --get bash-it.hide-status)" != "1" ]]; then
     [[ "${SCM_GIT_IGNORE_UNTRACKED}" = "true" ]] && local git_status_flags='-uno'
-    readarray -t status_lines < <((git status --porcelain ${git_status_flags} -b 2> /dev/null ||
-		                               git status --porcelain ${git_status_flags} 2> /dev/null) | git_status_summary )
-    local status="${status_lines[0]}"
-    local untracked_count="${status_lines[1]}"
-    local unstaged_count="${status_lines[2]}"
-    local staged_count="${status_lines[3]}"
+    local status_lines=$((git status --porcelain ${git_status_flags} -b 2> /dev/null ||
+                          git status --porcelain ${git_status_flags}    2> /dev/null) | git_status_summary)
+    local status=$(awk 'NR==1' <<< "$status_lines")
+    local counts=$(awk 'NR==2' <<< "$status_lines")
+    IFS=$'\t' read untracked_count unstaged_count staged_count <<< "$counts"
     if [[ "${untracked_count}" -gt 0 || "${unstaged_count}" -gt 0 || "${staged_count}" -gt 0 ]]; then
       SCM_DIRTY=1
       if [[ "${SCM_GIT_SHOW_DETAILS}" = "true" ]]; then