commit 1e431573b18ef38f54c65c4a143a4aa29c1e3e6a
from: Sergey Bronnikov <estetus@gmail.com>
date: Mon Jul 08 11:42:07 2024 UTC

litclock: support NO_COLOR

The patch brings support of `NO_COLOR` [1] environment variable.
`litclock` will not use coloring when `NO_COLOR` is not empty.

1. http://no-color.org/

commit - 90294e6f4d90527c408f8d7a7071c0394e5c5c98
commit + 1e431573b18ef38f54c65c4a143a4aa29c1e3e6a
blob - 3d6fdf18c7ecda9f2efaee03ae0ebd3ba6a69f0a
blob + b520a2f387bc69669508257f5c983e11b64822d0
--- CHANGELOG.md
+++ CHANGELOG.md
@@ -8,6 +8,7 @@ change log follows the conventions of
 
 ### Added
 
+- Support `NO_COLOR` in `litclock`.
 - Option for generating video files.
 - Option for setting a language in a build script.
 
blob - d210147a3275238fb42327331d298c88e08471fb
blob + 41d127177f1ff8bb1be4533c9a7cfb5975c5c5f6
--- litclock
+++ litclock
@@ -1,8 +1,8 @@
 #!/usr/bin/bash
 
 #
-# litclock 0.1.0
-# Copyright (c) 2022, Sergey Bronnikov
+# litclock 0.2.0
+# Copyright (c) 2022-2024, Sergey Bronnikov
 # https://github.com/ligurio/litclock
 #
 # litclock script is released under the BSD 2-Clause license.
@@ -11,7 +11,7 @@
 # SPDX-License-Identifier: BSD-2-Clause
 #
 
-set -eu
+set -e
 
 PREFIX_DATA="/usr/local/share"
 
@@ -39,6 +39,21 @@ shift $((OPTIND-1))
 
 quotes_file="${PREFIX_DATA}/litclock/quotes_${lang}.csv"
 
+printf_color() {
+    local no_color_support="$NO_COLOR"
+    local fmt="$1"
+    local text="$2"
+    if [ -z "${no_color_support}" ]; then
+        printf "%b" "$DEFAULT_COLOR"
+        # shellcheck disable=SC2059
+        # shellcheck disable=SC2086
+        printf $fmt "$text"
+        printf "%b" "$DISABLE_COLOR"
+    else
+        printf "%s" "$time_words"
+    fi
+}
+
 if ! [ -f "$quotes_file" ]; then
     echo "File $quotes_file is not found."
     exit 1
@@ -65,9 +80,7 @@ do
 
     printf "\""
     printf "%s" "$quote_first"
-    printf "%b" "$DEFAULT_COLOR"
-    printf "%s" "$time_words"
-    printf "%b" "$DISABLE_COLOR"
+    printf_color "%s" "$time_words"
     printf "%s" "$quote_last"
     printf "\"\n"
     printf " -- '%s', %s\n\n" "$title" "$author"
blob - 65579eea5704afbb797320824bfcabe0d1156ef8
blob + 874a7600884918519dd33f4516e72e99cf3d3da2
--- litclock.1
+++ litclock.1
@@ -1,5 +1,5 @@
 .\"
-.\" Copyright (c) 2022-2023, Sergey Bronnikov
+.\" Copyright (c) 2022-2024, Sergey Bronnikov
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -52,6 +52,10 @@ Specify a language.
 Possible values are "ru" and "en".
 Default language is "ru".
 .El
+.Pp
+By default litclock highlights a part of quote with time by red color.
+With non-empty NO_COLOR
+environment variable litclock will disable colored text output.
 .Sh EXAMPLES
 Display a quote for a current time:
 .Pp