From f1e5702f0f568aded35e424e988a534bdbb31fb6 Mon Sep 17 00:00:00 2001
From: Mykyta Solomko <sev@nix.org.ua>
Date: Mon, 7 Dec 2020 19:52:23 +0000
Subject: [PATCH] highlight sources using less

---
 .bash_profile | 36 ++++++++++++++++++++++++++----------
 1 file changed, 26 insertions(+), 10 deletions(-)

diff --git a/.bash_profile b/.bash_profile
index 075262b..c03cbd1 100644
--- a/.bash_profile
+++ b/.bash_profile
@@ -56,16 +56,6 @@ __export_pager()
     # Export existing pager
     if [ -n "${___pager}" ]; then
         export PAGER="${___pager}"
-
-        export LESS='-r'
-        # Add colours for less
-        export LESS_TERMCAP_mb=$'\E[01;31m'
-        export LESS_TERMCAP_md=$'\E[01;31m'
-        export LESS_TERMCAP_me=$'\E[0m'
-        export LESS_TERMCAP_se=$'\E[0m'
-        export LESS_TERMCAP_so=$'\E[01;44;33m'
-        export LESS_TERMCAP_ue=$'\E[0m'
-        export LESS_TERMCAP_us=$'\E[01;32m'
     fi
 }
 
@@ -126,6 +116,30 @@ __export_ls_colors()
     fi
 }
 
+__export_lesspipe_opts() {
+
+    # Enable lesspipe colouring if set as default pager
+    if [[ ${PAGER} =~ .*/less$ ]]; then
+
+        # Requires source-highlight package to be installed
+        if [[ -x /usr/bin/src-hilite-lesspipe.sh ]]; then
+            export LESSOPEN="| /usr/bin/src-hilite-lesspipe.sh %s"
+            export LESS=' -R '
+        else
+            export LESS='-r'
+        fi
+
+        # Add colours for less
+        export LESS_TERMCAP_mb=$'\E[01;31m'
+        export LESS_TERMCAP_md=$'\E[01;31m'
+        export LESS_TERMCAP_me=$'\E[0m'
+        export LESS_TERMCAP_se=$'\E[0m'
+        export LESS_TERMCAP_so=$'\E[01;44;33m'
+        export LESS_TERMCAP_ue=$'\E[0m'
+        export LESS_TERMCAP_us=$'\E[01;32m'
+    fi
+}
+
 # --- SSH agent --- #
 agent()
 {
@@ -295,6 +309,8 @@ __export_ls_colors
 # shellcheck disable=SC2119
 __export_pager
 # shellcheck disable=SC2119
+__export_lesspipe_opts
+# shellcheck disable=SC2119
 __export_editor
 # shellcheck disable=SC2119
 __export_browser
-- 
2.17.6