- Update colors library to support auto-colors based on TTY

Author: DannyBen

lib/bashly/libraries/colors/colors.sh

@@ -10,6 +10,14 @@
 ## Color output will be disabled if `NO_COLOR` environment variable is set
 ## in compliance with https://no-color.org/
 ##
+## In case you wish to enable auto detection for color output based on the
+## terminal being interactive (TTY), call `enable_auto_colors` in your 
+## `src/initialize.sh` (Run `bashly add hooks` to add this file).
+##
+enable_auto_colors() {
+  [[ -z ${NO_COLOR+x} && ! -t 1 ]] && NO_COLOR=1 || true
+}
+
 print_in_color() {
   local color="$1"
   shift

lib/bashly/libraries/libraries.yml

@@ -3,6 +3,14 @@ colors:
   files:
     - source: "colors/colors.sh"
       target: "%{user_lib_dir}/colors.%{user_ext}"
+  post_install_message: |
+    The colors library supports the g`NO_COLOR` standard out of the box.
+
+    In case you wish to also enable automatic output of colors based on the
+    terminal being interactive (TTY), call g`enable_auto_colors` in your 
+    g`src/initialize.sh`. You may run the following command to add this file:
+
+      m`$ bashly add hooks`
 
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