From 8123b1c88798e78c12e795b3e736c9429ac62b73 Mon Sep 17 00:00:00 2001
From: David Farrell <davidpfarrell+github@gmail.com>
Date: Fri, 1 Nov 2019 08:41:37 -0700
Subject: [PATCH] Adds shlvl segment to powerline themes

---
 themes/powerline-multiline/powerline-multiline.theme.bash | 3 +++
 themes/powerline-naked/powerline-naked.theme.bash         | 3 +++
 themes/powerline-plain/powerline-plain.theme.bash         | 3 +++
 themes/powerline/powerline.base.bash                      | 8 ++++++++
 themes/powerline/powerline.theme.bash                     | 3 +++
 5 files changed, 20 insertions(+)

diff --git a/themes/powerline-multiline/powerline-multiline.theme.bash b/themes/powerline-multiline/powerline-multiline.theme.bash
index e90b494e..a70a2025 100644
--- a/themes/powerline-multiline/powerline-multiline.theme.bash
+++ b/themes/powerline-multiline/powerline-multiline.theme.bash
@@ -64,6 +64,9 @@ IN_VIM_THEME_PROMPT_TEXT=${POWERLINE_IN_VIM_TEXT:="vim"}
 
 HOST_THEME_PROMPT_COLOR=${POWERLINE_HOST_COLOR:=0}
 
+SHLVL_THEME_PROMPT_COLOR=${POWERLINE_SHLVL_COLOR:=${HOST_THEME_PROMPT_COLOR}}
+SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
+
 POWERLINE_LEFT_PROMPT=${POWERLINE_LEFT_PROMPT:="scm python_venv ruby node cwd"}
 POWERLINE_RIGHT_PROMPT=${POWERLINE_RIGHT_PROMPT:="in_vim clock battery user_info"}
 
diff --git a/themes/powerline-naked/powerline-naked.theme.bash b/themes/powerline-naked/powerline-naked.theme.bash
index 2a5b7b26..bff10f57 100644
--- a/themes/powerline-naked/powerline-naked.theme.bash
+++ b/themes/powerline-naked/powerline-naked.theme.bash
@@ -60,6 +60,9 @@ IN_VIM_THEME_PROMPT_TEXT=${POWERLINE_IN_VIM_TEXT:="vim"}
 
 HOST_THEME_PROMPT_COLOR=${POWERLINE_HOST_COLOR:=254}
 
+SHLVL_THEME_PROMPT_COLOR=${POWERLINE_SHLVL_COLOR:=${HOST_THEME_PROMPT_COLOR}}
+SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
+
 POWERLINE_PROMPT=${POWERLINE_PROMPT:="user_info scm python_venv ruby node cwd"}
 
 safe_append_prompt_command __powerline_prompt_command
diff --git a/themes/powerline-plain/powerline-plain.theme.bash b/themes/powerline-plain/powerline-plain.theme.bash
index 4d539470..a300cab9 100644
--- a/themes/powerline-plain/powerline-plain.theme.bash
+++ b/themes/powerline-plain/powerline-plain.theme.bash
@@ -57,6 +57,9 @@ IN_VIM_THEME_PROMPT_TEXT=${POWERLINE_IN_VIM_TEXT:="vim"}
 
 HOST_THEME_PROMPT_COLOR=${POWERLINE_HOST_COLOR:=0}
 
+SHLVL_THEME_PROMPT_COLOR=${POWERLINE_SHLVL_COLOR:=${HOST_THEME_PROMPT_COLOR}}
+SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
+
 POWERLINE_PROMPT=${POWERLINE_PROMPT:="user_info scm python_venv ruby node cwd"}
 
 safe_append_prompt_command __powerline_prompt_command
diff --git a/themes/powerline/powerline.base.bash b/themes/powerline/powerline.base.bash
index a0f80552..f5cf4f3e 100644
--- a/themes/powerline/powerline.base.bash
+++ b/themes/powerline/powerline.base.bash
@@ -162,6 +162,14 @@ function __powerline_aws_profile_prompt {
   fi
 }
 
+function __powerline_shlvl_prompt {
+  if [[ "${SHLVL}" -gt 1 ]]; then
+    local prompt="${SHLVL_THEME_PROMPT_CHAR}"
+    local level=$(( ${SHLVL} - 1))
+    echo "${prompt}${level}|${SHLVL_THEME_PROMPT_COLOR}"
+  fi
+}
+
 function __powerline_left_segment {
   local OLD_IFS="${IFS}"; IFS="|"
   local params=( $1 )
diff --git a/themes/powerline/powerline.theme.bash b/themes/powerline/powerline.theme.bash
index 26182a82..d4bb387d 100644
--- a/themes/powerline/powerline.theme.bash
+++ b/themes/powerline/powerline.theme.bash
@@ -60,6 +60,9 @@ IN_VIM_THEME_PROMPT_TEXT=${POWERLINE_IN_VIM_TEXT:="vim"}
 
 HOST_THEME_PROMPT_COLOR=${POWERLINE_HOST_COLOR:=0}
 
+SHLVL_THEME_PROMPT_COLOR=${POWERLINE_SHLVL_COLOR:=${HOST_THEME_PROMPT_COLOR}}
+SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
+
 POWERLINE_PROMPT=${POWERLINE_PROMPT:="user_info scm python_venv ruby node cwd"}
 
 safe_append_prompt_command __powerline_prompt_command