Make Runcommand optional

1 files changed, 16 insertions, 16 deletions

diff --git a/main.go b/main.go
index e197b10..be9d57b 100644
--- a/main.go
+++ b/main.go
@@ -1,13 +1,16 @@
-// [PROGRAM] will run a build command and a run command on file system changes.  This is so you can
+// wbr will run a build command and a run command on file system changes.  This is so you can
 // build&run on save.
 // You specify a build command and run command as flags and optionally you can filter by extension.
 
+// TODO:
+// fix bug when only build command is provided that the output is like this:
+// [./build.sh [./build.sh] ./main.c ]
+
 package main
 
 import (
 	"flag"
 	"fmt"
-	"os"
 	"os/exec"
 	"strings"
 
@@ -17,7 +20,8 @@ import (
 // Colors in escape sequences
 var (
 	Reset    = "\033[0m"
-	BoldCyan = "\033[36m"
+	BoldCyan = "\033[36;1m"
+	Cyan     = "\033[36m"
 	// Red     = "\033[31m"
 	// Green   = "\033[32m"
 	// Yellow  = "\033[33m"
@@ -45,7 +49,7 @@ func CompileRun(fileName string) {
 	}
 
 	// Build the program, exit if return if there was an error
-	{
+	if len(BuildCommand) > 0 && BuildCommand[0] != "" {
 		var buildCmd *exec.Cmd
 		if len(BuildCommand) > 1 {
 			buildCmd = exec.Command(BuildCommand[0], append(BuildCommand[1:], fileName)...)
@@ -56,11 +60,12 @@ func CompileRun(fileName string) {
 		out, err := buildCmd.CombinedOutput()
 
 		if len(BuildCommand) > 1 {
-			fmt.Printf("\n[%s%s %s%s]\n", BoldCyan, BuildCommand[0], strings.Join(append(BuildCommand[1:], fileName), " "), Reset)
+			fmt.Printf("[%s%s %s%s]\n", Cyan, BuildCommand[0], strings.Join(append(BuildCommand[1:], fileName), " "), Reset)
 		} else {
-			fmt.Printf("[%s%s %s %s%s]\n", BoldCyan, BuildCommand[0], BuildCommand, fileName, Reset)
+			fmt.Printf("[%s%s %s %s%s]\n", Cyan, BuildCommand[0], BuildCommand, fileName, Reset)
 		}
 
+		fmt.Println(len(BuildCommand))
 		if len(out) > 0 {
 			fmt.Printf("%s", out)
 		}
@@ -74,8 +79,8 @@ func CompileRun(fileName string) {
 		}
 	}
 
-	// There was no error in the build so we can execute the run command
-	{
+	if len(RunCommand) > 0 && RunCommand[0] != "" {
+		// There was no error in the build so we can execute the run command
 		var runCmd *exec.Cmd
 		if len(RunCommand) > 1 {
 			runCmd = exec.Command(RunCommand[0], RunCommand[1:]...)
@@ -85,9 +90,9 @@ func CompileRun(fileName string) {
 
 		out, err := runCmd.CombinedOutput()
 		if len(RunCommand) > 1 {
-			fmt.Printf("[%s%s %s%s]\n", BoldCyan, RunCommand[0], strings.Join(append(RunCommand[1:]), " "), Reset)
+			fmt.Printf("[%s%s %s%s]\n", Cyan, RunCommand[0], strings.Join(RunCommand[1:], " "), Reset)
 		} else {
-			fmt.Printf("[%s%s%s]\n", BoldCyan, RunCommand[0], Reset)
+			fmt.Printf("[%s%s%s]\n", Cyan, RunCommand[0], Reset)
 
 		}
 		if len(out) > 0 {
@@ -118,17 +123,12 @@ func main() {
 	p := flag.String("p", ".", "Path to watch for files")
 	flag.Parse()
 
-	if *bc == "" {
-		fmt.Println("flag is required: -b")
-		os.Exit(1)
-	}
-
 	BuildCommand = strings.Split(*bc, " ")
 	RunCommand = strings.Split(*rc, " ")
 	Ext = *e
 	Path = *p
 
-	fmt.Printf("[%swatching '%s'%s]", BoldCyan, Path, Reset)
+	fmt.Printf("[%swbr%s:%s watching '%s'%s]\n", BoldCyan, Reset, Cyan, Path, Reset)
 
 	go func() {
 		for {