temp

go.mod

@@ -21,6 +21,7 @@ require (
 	github.com/sirupsen/logrus v1.3.0
 	github.com/src-d/gcfg v1.3.0 // indirect
 	github.com/stretchr/testify v1.2.2
+	github.com/urfave/cli v1.20.0 // indirect
 	github.com/xanzy/ssh-agent v0.2.0 // indirect
 	go.opencensus.io v0.17.0 // indirect
 	golang.org/x/crypto v0.0.0-20181001203147-e3636079e1a4 // indirect

go.sum

@@ -68,6 +68,8 @@ github.com/src-d/gcfg v1.3.0/go.mod h1:p/UMsR43ujA89BJY9duynAwIpvqEujIH/jFlfL7jW
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/urfave/cli v1.20.0 h1:fDqGv3UG/4jbVl/QkFwEdddtEDjh/5Ov6X+0B/3bPaw=
+github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/xanzy/ssh-agent v0.2.0 h1:Adglfbi5p9Z0BmK2oKU9nTG+zKfniSfnaMYB+ULd+Ro=
 github.com/xanzy/ssh-agent v0.2.0/go.mod h1:0NyE30eGUDliuLEHJgYte/zncp2zdTStcOnWhgSqHD8=
 go.opencensus.io v0.17.0 h1:2Cu88MYg+1LU+WVD+NWwYhyP0kKgRlN9QjWGaX0jKTE=

main.go

@@ -2,15 +2,16 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"os"
 
-	log "github.com/sirupsen/logrus"
-
 	"github.com/go-chi/chi"
 	"github.com/rodrigo-brito/gocity/handle"
 	"github.com/rodrigo-brito/gocity/handle/middlewares"
 	"github.com/rodrigo-brito/gocity/lib"
+	log "github.com/sirupsen/logrus"
+	"github.com/urfave/cli"
 )
 
 const EnvKeyGCS = "GOOGLE_APPLICATION_CREDENTIALS"
@@ -20,7 +21,7 @@ func main() {
 	router := chi.NewRouter()
 	cache := lib.NewCache()
 
-	// Use Google Cloud Storage for cache, if available
+	// Use Google Cloud Storage for cache, if credentials available
 	if credentials := os.Getenv(EnvKeyGCS); len(credentials) > 0 {
 		var err error
 		storage, err = lib.NewGCS(context.Background())
@@ -31,17 +32,40 @@ func main() {
 
 	corsMiddleware := middlewares.GetCors("*")
 	router.Use(corsMiddleware.Handler)
-
 	analyzer := handle.AnalyzerHandle{
 		Cache:   cache,
 		Storage: storage,
 	}
 
-	router.Get("/api", analyzer.Handler)
-	router.Get("/health", handle.HealthCheck)
+	app := cli.NewApp()
+	app.Version = "1.0.0"
+	app.Description = "Code City metaphor for visualizing Go source code in 3D"
+	app.Author = "Rodrigo Brito"
+
+	app.Commands = []cli.Command{
+		{
+			Name:        "server",
+			Description: "Start a local server to analyze projects",
+			Action: func(c *cli.Context) error {
+				router.Get("/api", analyzer.Handler)
+				router.Get("/health", handle.HealthCheck)
+
+				log.Println("Server started at http://localhost:4000")
+
+				return http.ListenAndServe(":4000", router)
+			},
+		},
+		{
+			Name:        "open",
+			Description: "Open a given project in local server",
+			Action: func(c *cli.Context) error {
+				fmt.Println(c.Args().First())
+				return nil
+			},
+		},
+	}
 
-	log.Println("Server started at http://localhost:4000")
-	if err := http.ListenAndServe(":4000", router); err != nil {
-		log.Error(err)
+	if err := app.Run(os.Args); err != nil {
+		log.Fatal(err)
 	}
 }