refactor: adapt and simplify filetypes.sh

Author: gegoune

.editorconfig

@@ -7,3 +7,7 @@ end_of_line = lf
 [*.lua]
 indent_style = space
 indent_size = 2
+
+[*.sh]
+indent_style = space
+indent_size = 2

scripts/filetypes.sh

@@ -3,31 +3,20 @@
 # Iterate over the elements of icons_by_file_extension and check if there are missed filetypes.
 # $VIMRUNTIME specifies neovim runtime path, defaults to "/usr/share/nvim/runtime" if unset.
 
-if [ -z "${VIMRUNTIME}" ]; then
-	export VIMRUNTIME="/usr/share/nvim/runtime"
-fi
+: "${VIMRUNTIME:=/usr/share/nvim/runtime}"
 
 exit_value=0
-in_section=false
 
-while IFS= read -r line; do
-	if [[ $line =~ ^local\ icons_by_file_extension\ =\ \{$ ]]; then
-		in_section=true
-	elif [[ $line =~ ^\}$ ]]; then
-		in_section=false
-	fi
+while read -r key; do
+  # Search for the key in the main file
+  line=$(grep -F "\"$key\"" "lua/nvim-web-devicons.lua")
+  if [ -z "$line" ]; then
+    [ -f "${VIMRUNTIME}/syntax/$key.vim" ] &&
+      echo -e "\e[33mPlease add \"$key\" to filetypes Lua table.\e[0m" &&
+      exit_value=1
+  fi
+done < <(
+  sed -nr '/^local icons_by_file_extension/,/^}/!d; s/.*\["(.*)"\].*/\1/p' lua/nvim-web-devicons/icons-default.lua
+)
 
-	if $in_section && [[ $line =~ \[\"(.+)\"\] ]]; then
-		key="${BASH_REMATCH[1]}"
-		# Search for the key in the main file
-		line=$(grep -F "\"$key\"" "lua/nvim-web-devicons.lua")
-		if [ -n "$line" ]; then
-			continue
-		else
-			[ -f "${VIMRUNTIME}/syntax/$key.vim" ] &&
-				echo -e "\e[33mPlease add \"$key\" to filetypes Lua table.\e[0m" &&
-				exit_value=1
-		fi
-	fi
-done <"lua/nvim-web-devicons/icons-default.lua"
 exit $exit_value