Add pmctl command

pmctl/get.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/Safing/portmaster/updates"
+)
+
+func getFile(identifier string) (*updates.File, error) {
+	// get newest local file
+	updates.LoadLatest()
+	file, err := updates.GetPlatformFile(identifier)
+	if err == nil {
+		return file, nil
+	}
+	if err != updates.ErrNotFound {
+		return nil, err
+	}
+
+	fmt.Printf("%s downloading %s...\n", logPrefix, identifier)
+
+	// if no matching file exists, load index
+	err = updates.LoadIndexes()
+	if err != nil {
+		if os.IsNotExist(err) {
+			// create dirs
+			err = updates.CheckDir(updateStoragePath)
+			if err != nil {
+				return nil, err
+			}
+
+			// download indexes
+			err = updates.CheckForUpdates()
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			return nil, err
+		}
+	}
+
+	// get file
+	return updates.GetPlatformFile(identifier)
+}