Add serve command

Author: stilvoid

internal/cmd/serve.go

@@ -0,0 +1,69 @@
+package cmd
+
+import (
+	"fmt"
+	"io"
+    "log"
+	"net"
+	"net/http"
+	"os"
+
+	"github.com/pborman/getopt"
+)
+
+type server struct {
+	status          int
+	includeHeaders  bool
+	includeMethod   bool
+	includeUrl      bool
+	headersIncluded bool
+	listener        net.Listener
+	data            io.ReadSeeker
+}
+
+func init() {
+	Commands["serve"] = serveCommand
+}
+
+func serveHelp() {
+	fmt.Println("Usage: please serve <PATH> [<ADDRESS>[:<PORT>]]")
+	fmt.Println()
+	fmt.Println("Serves the contents of PATH on the specified address and port.")
+	fmt.Println("Requested paths will be printed to stdout.")
+}
+
+type loggingFileSystem struct {
+    http.FileSystem
+}
+
+func (fsys loggingFileSystem) Open(path string) (http.File, error) {
+    fmt.Println(path)
+
+    return fsys.FileSystem.Open(path)
+}
+
+func serveCommand(args []string) {
+	opts := getopt.CommandLine
+
+	opts.SetUsage(serveHelp)
+
+	// Deal with flags and get the path (and URL)
+	opts.Parse(args)
+	if opts.NArgs() < 1 {
+		getopt.Usage()
+		os.Exit(1)
+	}
+
+	path := opts.Arg(0)
+
+	address := "0.0.0.0:8000"
+
+	if opts.NArgs() >= 2 {
+		address = opts.Arg(1)
+	}
+
+    fmt.Println("Listening on", address)
+
+    fsys := loggingFileSystem{http.Dir(path)}
+    log.Fatal(http.ListenAndServe(address, http.FileServer(fsys)))
+}

main.go

@@ -15,6 +15,7 @@ func printHelp() {
 	fmt.Println("    request    Make a web request and output the result")
 	fmt.Println("    respond    Listen for a web request and respond to it")
 	fmt.Println("    parse      Get values from structured data and convert between formats")
+	fmt.Println("    serve      Serve a folder as a web site")
 	fmt.Println()
 	fmt.Println("Run 'please COMMAND' for more information on a command.")
 }