Add tea open (#101)

Fix open default to home page

Improve path join and open with no arg

add labels and milestones

Add tea open

Reviewed-on: https://gitea.com/gitea/tea/pulls/101
Reviewed-by: 6543 <6543@noreply.gitea.io>
Reviewed-by: John Olheiser <john.olheiser@gmail.com>

vendor/github.com/skratchdot/open-golang/open/exec_windows.go

@@ -0,0 +1,33 @@
+// +build windows
+
+package open
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	// "syscall"
+)
+
+var (
+	cmd      = "url.dll,FileProtocolHandler"
+	runDll32 = filepath.Join(os.Getenv("SYSTEMROOT"), "System32", "rundll32.exe")
+)
+
+func cleaninput(input string) string {
+	r := strings.NewReplacer("&", "^&")
+	return r.Replace(input)
+}
+
+func open(input string) *exec.Cmd {
+	cmd := exec.Command(runDll32, cmd, input)
+	//cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+	return cmd
+}
+
+func openWith(input string, appName string) *exec.Cmd {
+	cmd := exec.Command("cmd", "/C", "start", "", appName, cleaninput(input))
+	//cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+	return cmd
+}