Add script to generate NF lib file (#142)

Add script to generate NF lib file
Also remove some spaces on Codeberg line on icons.tsv file
Update scripts/create_nf_lib.sh
Replace "U" with "u", change sequence format

Co-authored-by: Fini <ulf.fini.jastrow@desy.de>

Author: hasecilu

icons.tsv

@@ -47,7 +47,7 @@ offset	name					id
 45		Solus					solus
 46		Void					void
 47		Zorin OS				zorin
-48		Codeberg			    codeberg
+48		Codeberg				codeberg
 49		KDE Neon				kde-neon
 50		KDE Plasma				kde-plasma
 51		Kubuntu					kubuntu

scripts/create_nf_lib.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+# Convert the icons.tsv file's data to Nerd Font lib's format
+# to update their lib file with the new glyphs.
+# Usage: ./create_lib.sh
+# 	Copy missing glyphs from the output to the
+# 	<PATH>/nerd-fonts/bin/scripts/lib/i_logos.sh file.
+
+# Get script directory to set file path relative to it
+file_path="$(
+	cd -- "$(dirname "${0}")" >/dev/null 2>&1 || exit
+	pwd -P
+)/../icons.tsv"
+
+# Read the tsv file excluding the header
+sed '1d' "${file_path}" | while IFS=$'\t' read -r offset _ classname; do
+	# Calculate the codepoint, font-logos starts at 0xF300
+	codepoint=$((0xF300 + offset))
+	# Get the glyph from the codepoint
+	glyph=$(printf "\\u%x" "${codepoint}" 2>/dev/null)
+	# Print line using the Nerd Fonts lib's format
+	printf "i='%b' i_linux_%s=\$i\n" "${glyph}" "${classname}"
+done