Update CLI Interface0.2.0

3 files changed, 22 insertions, 10 deletions

diff --git a/Makefile b/Makefile
index 9bcf23e..de52702 100644
--- a/Makefile
+++ b/Makefile
@@ -10,11 +10,11 @@ clean:
 	rm -rf build
 
 debug:
-	go run ./... -file data/L.stl
+	go run ./... data/L.stl
 
 install: all
 	mkdir -p $(PREFIX)/bin
 	install -m 755 build/stlscope $(PREFIX)/bin
 
-.PHONY: all clean debug install release
+.PHONY: all clean debug install
 
diff --git a/README.md b/README.md
index e03d7ca..a7d293c 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,14 @@ This little program will allow you to view STL files from your terminal. It uses
 
 ## Usage
 
-Please use the help page to view current usage:
+It could not be simpler:
 
 ```
-$ stlscope -h
+$ stlscope myfile.stl
 ```
 
+Have a look at `stlscope -h` to learn about further options.
+
 ## Development Milestones
 
 Done (most recent first):
diff --git a/main.go b/main.go
index b4d52cf..004fbf3 100644
--- a/main.go
+++ b/main.go
@@ -6,16 +6,25 @@ import (
 	"runtime"
 	"log"
 	"flag"
+	"io/ioutil"
 )
 
+type cliArgs struct {
+	filePath string
+	debugOutput bool
+}
+
 func main() {
 
-	// read command line arguments
-	var stlFilePath string
-	parseFlags(&stlFilePath)
+	// read command line arguments and mute log if necessary
+	var args cliArgs
+	args.read()
+	if !args.debugOutput {
+		log.SetOutput(ioutil.Discard)
+	}
 
 	// parse STL file
-	stl, err := ReadBinaryStlFile(stlFilePath)
+	stl, err := ReadBinaryStlFile(args.filePath)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -40,7 +49,8 @@ func main() {
 	}
 }
 
-func parseFlags(stlFilePath *string) {
-	flag.StringVar(stlFilePath, "file", "myfile.stl", "path to the binary STL file")
+func (args *cliArgs) read() {
+	flag.BoolVar(&args.debugOutput, "debug", false, "enable to print log output")
 	flag.Parse()
+	args.filePath = flag.Arg(0)
 }