compile.sh - Rewritten and added small features

Ability to compile single or multiple files and checking compiler version.
For more information and examples
See https://forums.alliedmods.net/showthread.php?t=325181

plugins/compile.sh

@@ -7,18 +7,125 @@
 #
 # This file is part of AMX Mod X.
 
-# new code contributed by \malex\
+##################### 
+# GENERAL FUNCTIONS #
+#####################
 
-test -e compiled || mkdir compiled
-rm -f temp.txt
+# Quit script
+quit_script () {
+	if (( $# != 0 )); then
+		echo "$@"; fi
 	
-for sourcefile in *.sma
-do
-        amxxfile="`echo $sourcefile | sed -e 's/\.sma$/.amxx/'`"
-        echo -n "Compiling $sourcefile ..."
-        ./amxxpc $sourcefile -ocompiled/$amxxfile >> temp.txt
+	echo "Exiting..."
+	exit 1
+}
+
+# Checks if folder exists
+exists () {
+	test -e $1
+}
+
+##################### 
+# ARGUMENT CHECKING #
+#####################
+
+# Checks if exists any argument
+check_for_arguments () {
+	if [ $# != 0 ]; then
+		return 0; # Argument exist
+	else return 1; fi # Argument doesn't exist
+}
+
+# Check if argument is a command
+check_for_commands () {
+	if [[ $1 == -* && $1 != *.* ]]; then
+		return 0; # Argument is command
+	else return 1; fi # Argument is file
+}
+
+#####################
+# COMMAND FUNCTIONS #
+#####################
+
+# HELP
+__help () {
+	echo "  Usage:"
+	echo "--help    (-h) : This menu"
+	echo -e "--version (-v) : AMX MOD X Compiler version\n"
+	echo "To compile all source files in the directory"
+	echo "  execute the script without any parameters"
+	echo "To compile specific or multiple source files"
+	echo "  execute the script with parameters set as source files' name"
+	echo "  e.g ./compile.sh admin.sma admincmd.sma adminchat.sma"
+}
+
+# VERSION
+__version () {
+	if exists amxxpc; then
+	 	./amxxpc -q | head -n 3
+	else quit_script "amxxpc does not exists"; fi
+}
+
+# Execute command
+execute_command () {
+	case "$1" in
+		"--help"    | "-h" ) __help    ;;
+		"--version" | "-v" ) __version ;;
+	*) 
+	echo "  $1 is not a valid command"
+	echo "  Type \"$0 --help\" to see more information"
+	esac
+}
+
+#####################
+#  COMPILE SOURCE   #
+#####################
+
+# Compile source file
+compile_source_file () {
+	amxxfile="`echo $1 | sed -e 's/\.sma$/.amxx/'`"
+	echo -n "Compiling $1 ..."
+	./amxxpc $1 -ocompiled/$amxxfile >> temp.txt
 	echo "done"
-done
+}
 
-less temp.txt
-rm temp.txt
+#####################
+#   MAIN FUNCTION   #
+#####################
+
+# Main function
+main () {
+	if check_for_arguments "$@"; then
+		for arg in "$@"; do
+			if check_for_commands $arg; then
+				execute_command $arg
+				exit
+			else
+				test -e amxxpc || quit_script "amxxpc does not exists"
+				if [[ $arg == *.sma ]]; then
+					test -e temp.txt && rm -f temp.txt
+					test -e compiled || mkdir compiled
+					compile_source_file $arg
+					less temp.txt && rm temp.txt
+				else
+					echo "  $arg not a valid file"
+					echo "  Type \"$0 --help\" to see more information"
+				fi
+			fi
+		done
+	else 
+		test -e compiled || mkdir compiled
+		test -e amxxpc || quit_script "amxxpc does not exists"
+		test -e temp.txt && rm -f temp.txt
+		for sourcefile in *.sma; do
+			compile_source_file $sourcefile
+		done
+		less temp.txt && rm temp.txt
+	fi
+}	
+
+#####################
+# EXECUTE MAIN FUNC #
+#####################
+main "$@"
+#####################