Travis lint fix

cointop/common/open/open.go

@@ -37,9 +37,9 @@ func init() {
 }
 
 // URL open url
-func URL(s string) error {
+func URL(url string) error {
 	if openCmd != "" {
-		exec.Command(openCmd, s).Output()
+		return exec.Command(openCmd, url).Run()
 	}
 	return nil
 }

cointop/common/open/open_windows.go

@@ -0,0 +1,50 @@
+package open
+
+import (
+	"os/exec"
+)
+
+var windowsOpenCmd string
+var windowsPossibleCmds = []string{
+	"Start-Process",
+}
+var windowsPossibleExecs = []string{
+	"powershell.exe",
+	"explorer.exe",
+}
+var windowsOpenExec string
+
+func init() {
+	for _, exe := range windowsPossibleExecs {
+		execPath, err := exec.LookPath(exe)
+		if err != nil {
+			continue
+		}
+
+		windowsOpenExec = execPath
+		break
+	}
+
+	for _, cmd := range windowsPossibleCmds {
+		err := exec.Command(windowsOpenExec, "Get-Command", cmd).Run()
+		if err != nil {
+			continue
+		}
+
+		windowsOpenCmd = cmd
+		break
+	}
+}
+
+// URL open url
+func URL(url string) error {
+	if windowsOpenCmd != "" {
+		return exec.Command(windowsOpenExec, windowsOpenCmd, url).Run()
+	}
+	return nil
+}
+
+// CommandExists returns true if an 'open' command exists
+func CommandExists() bool {
+	return windowsOpenCmd != ""
+}