From 85a48caaffa7bd716b2a23b707803c3f3f26b96e Mon Sep 17 00:00:00 2001
From: Stuart Axon <stuaxo2@yahoo.com>
Date: Wed, 2 Oct 2019 12:01:14 +0100
Subject: [PATCH 1/4] Speed up last_status by avoiding wc -l
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On my system using native bash functions instead of wc -l speeds up the last_status by about 0.2 seconds.   This may be because windows pipes are slow or some issue with wc.

Before:
```
 master
last_status: 0.463
user_info: 0.066
cwd: 0.071
scm: 2.549
```

After:
```
last_status: 0.228
user_info: 0.079
cwd: 0.073
scm: 2.714
```

Performance numbers aren't exact as they vary a bit, but you can see a bit difference in the runtime for last_status.
---
 theme.bash | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/theme.bash b/theme.bash
index 98ec135..3df912d 100644
--- a/theme.bash
+++ b/theme.bash
@@ -197,7 +197,7 @@ function __powerline_last_status_prompt {
   local symbols=()
   [[ $last_status -ne 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ERROR_COLOR})${STATUS_PROMPT_ERROR}"
   [[ $UID -eq 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ROOT_COLOR})${STATUS_PROMPT_ROOT}"
-  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"
+  [[ ! -z $(read -r line <<< $(jobs -l); echo $line) ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"
 
   [[ -n "$symbols" ]] && echo "$symbols|${STATUS_PROMPT_COLOR}"
 }

From 8e05984b56bcfcef58608d586e01e5d5c41516b2 Mon Sep 17 00:00:00 2001
From: Stuart Axon <stuaxo2@yahoo.com>
Date: Wed, 2 Oct 2019 12:17:02 +0100
Subject: [PATCH 2/4] Update theme.bash

Last status:  get read to bail out earlier.
Get jobs command to output less by only outputting the pids of stopped jobs.
---
 theme.bash | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/theme.bash b/theme.bash
index 3df912d..dcf5d5f 100644
--- a/theme.bash
+++ b/theme.bash
@@ -197,7 +197,7 @@ function __powerline_last_status_prompt {
   local symbols=()
   [[ $last_status -ne 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ERROR_COLOR})${STATUS_PROMPT_ERROR}"
   [[ $UID -eq 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ROOT_COLOR})${STATUS_PROMPT_ROOT}"
-  [[ ! -z $(read -r line <<< $(jobs -l); echo $line) ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"
+  [[ ! -z $(read -r -n1 stopped_jobs <<< $(jobs -sp); echo $stopped_jobs) ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"
 
   [[ -n "$symbols" ]] && echo "$symbols|${STATUS_PROMPT_COLOR}"
 }

From 01332664d6db477c5499cd16a47a965a2ad61be5 Mon Sep 17 00:00:00 2001
From: Stuart Axon <stuaxo2@yahoo.com>
Date: Wed, 2 Oct 2019 12:41:06 +0100
Subject: [PATCH 3/4] Update theme.bash

Speed up last_status further by not using $() around job collection.
---
 theme.bash | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/theme.bash b/theme.bash
index dcf5d5f..8a88966 100644
--- a/theme.bash
+++ b/theme.bash
@@ -194,10 +194,12 @@ function __powerline_left_segment {
 }
 
 function __powerline_last_status_prompt {
-  local symbols=()
+  local symbols=()  
+  local stopped_jobs
+  jobs -sp | read -n1 stopped_jobs
   [[ $last_status -ne 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ERROR_COLOR})${STATUS_PROMPT_ERROR}"
   [[ $UID -eq 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ROOT_COLOR})${STATUS_PROMPT_ROOT}"
-  [[ ! -z $(read -r -n1 stopped_jobs <<< $(jobs -sp); echo $stopped_jobs) ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"
+  [[ ! -z "$stopped_jobs" ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"
 
   [[ -n "$symbols" ]] && echo "$symbols|${STATUS_PROMPT_COLOR}"
 }

From b10124da68c3cfc3ef52012523c255e2751f36b7 Mon Sep 17 00:00:00 2001
From: Stuart Axon <stuaxo2@yahoo.com>
Date: Wed, 2 Oct 2019 13:26:27 +0100
Subject: [PATCH 4/4] Update theme.bash

Small adjustment to unbreak this :)
---
 theme.bash | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/theme.bash b/theme.bash
index 8a88966..dbea07e 100644
--- a/theme.bash
+++ b/theme.bash
@@ -196,7 +196,7 @@ function __powerline_left_segment {
 function __powerline_last_status_prompt {
   local symbols=()  
   local stopped_jobs
-  jobs -sp | read -n1 stopped_jobs
+  read -N1 stopped_jobs < <(jobs -sp)
   [[ $last_status -ne 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ERROR_COLOR})${STATUS_PROMPT_ERROR}"
   [[ $UID -eq 0 ]] && symbols+="$(__color ${STATUS_PROMPT_ROOT_COLOR})${STATUS_PROMPT_ROOT}"
   [[ ! -z "$stopped_jobs" ]] && symbols+="$(__color ${STATUS_PROMPT_JOBS_COLOR})${STATUS_PROMPT_JOBS}"