D1290.id3313.diff
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D1290.id3313.diff
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	diff --git a/utils/next-uid.py b/utils/next-uid.py
	new file mode 100755
	--- /dev/null
	+++ b/utils/next-uid.py
	@@ -0,0 +1,32 @@
	+#!/usr/bin/env python3
	+#
	+# Guesses a free sequential user ID for a new account.
	+#
	+# To do so, reads from pillar/core/users.sls (USERS_DATASOURCE) the last users
	+# uid # and offers the next one available.
	+#
	+# ID > 5000 (USERS_CUT) are ignored.
	+
	+import yaml
	+
	+
	+USERS_DATASOURCE = 'pillar/core/users.sls'
	+USERS_DATASOURCE_KEY = 'shellusers'
	+USERS_CUT = 5000
	+
	+
	+def get_shellusers(filename, key):
	+ with open(filename) as stream:
	+ data = yaml.load(stream)
	+ return data['shellusers']
	+
	+
	+def get_uids(users, threshold):
	+ return [users[username]['uid']
	+ for username in users
	+ if users[username]['uid'] < threshold]
	+
	+
	+users = get_shellusers(USERS_DATASOURCE, USERS_DATASOURCE_KEY)
	+uids = get_uids(users, USERS_CUT)
	+print(max(uids) + 1)