added code to clone package manager

plugin/packageManager.go

@@ -0,0 +1,43 @@
+package plugin
+
+import (
+	"git.sr.ht/~akilan1999/p2p-rendering-computation/config"
+	"github.com/go-git/go-git/v5"
+	"os"
+	"net/url"
+	"strings"
+)
+
+// DownloadPlugin This functions downloads package from
+// a git repo
+func DownloadPlugin(pluginurl string) error {
+	// paring plugin url
+	u, err := url.Parse(pluginurl)
+	if err != nil {
+		return err
+	}
+	path := u.Path
+	// Trim first character of the string
+	path = path[1:]
+	// trim last element of the string
+	path = path[:len(path)-1]
+	// Replaces / with _
+	folder := strings.Replace(path, "/", "_", -1)
+	// Reads plugin path from the config path
+	config, err := config.ConfigInit()
+	if err != nil {
+		return err
+	}
+	// clones a repo and stores it at the plugin directory
+	_, err = git.PlainClone(config.PluginPath + "/" + folder, false, &git.CloneOptions{
+		URL:      pluginurl,
+		Progress: os.Stdout,
+	})
+	// returns error if raised
+	if err != nil {
+		return err
+	}
+
+
+	return nil
+}