refactor: reuse common scripts and files

move common scripts to build/common

build/common/commands/console.py

@@ -0,0 +1,25 @@
+import sys
+import frappe
+import IPython
+
+from frappe.utils import get_sites
+
+
+def console(site):
+    "Start ipython console for a site"
+    if site not in get_sites():
+        print("Site {0} does not exist on the current bench".format(site))
+        return
+
+    frappe.init(site=site)
+    frappe.connect()
+    frappe.local.lang = frappe.db.get_default("lang")
+    all_apps = frappe.get_installed_apps()
+    for app in all_apps:
+        locals()[app] = __import__(app)
+    print("Apps in this namespace:\n{}".format(", ".join(all_apps)))
+    IPython.embed(display_banner="", header="")
+
+
+site = sys.argv[-1]
+console(site)