Allow choosing port number.

README.md

@@ -14,14 +14,15 @@ Synopsis: `isidore <command> [options]`
 
 Commands:
 
-- `new [-i] <dir>`: create a new project.
+- `new [args] <dir>`: create a new project.
   - `<dir>`: new project directory.
   - `-i`: interactive mode.
-- `build [-v] [-j<n>]`: build the website.
+- `build [args]`: build the website.
   - `-j<n>`: number of jobs to run concurrently. With `0` it compiles all files
     at once.
   - `-v`: run with verbose output.
-- `serve`, `server`: run an HTTP server of the output on port 8080.
+- `serve`, `server [args]`: run an HTTP server of the output (default port 8080).
+  - `-p <port>`: port number to bind server to.
 - `clean`: cleans build files.
 - `help`: show help information.
 - `version`: show Isidore version number.

isidore.sh

@@ -95,8 +95,8 @@ function print_help()
     Create a new Isidore project
   build [-v] [-j<n>]
     Build the project rooted in the current directory
-  serve | server
-    Serve a local HTTP server of the output directory on port 8080
+  serve | server [-p <port>]
+    Serve a local HTTP server of the output directory
   clean
     Clean the built files
   version
@@ -281,7 +281,28 @@ case $1 in
 		done
 		build_project $VERBOSE $JOBS;;
 	serve|server)
-		php -S localhost:8080 -t $OUTPUT_DIR/;;
+		PORT=8080
+		shift
+		while getopts "p:" opt
+		do
+			case $opt in
+				p)
+					if ! [[ "$OPTARG" =~ ^[0-9]+$ ]]
+					then
+						echo "Invalid port $OPTARG. Please enter a number."
+						exit 1
+					fi
+					PORT=$OPTARG;;
+				?)
+					echo "Invalid argument $OPTARG. Use the 'help' subcommand."
+					print_usage
+					exit 1;;
+				:)
+					echo "Option -$OPTARG requires an argument."
+					exit 1;;
+			esac
+		done
+		php -S localhost:$PORT -t $OUTPUT_DIR/;;
 	clean)
 		clean_project;;
 	help)