Revert "Revert "Remove vendored libjuju""

[osm/N2VC.git] / modules / libjuju / juju / constraints.py

diff --git a/modules/libjuju/juju/constraints.py b/modules/libjuju/juju/constraints.py
deleted file mode 100644 (file)
index 0050673..0000000
--- a/modules/libjuju/juju/constraints.py
+++ /dev/null
@@ -1,87 +0,0 @@
-#
-# Module that parses constraints
-#
-# The current version of juju core expects the client to take
-# constraints given in the form "mem=10G foo=bar" and parse them into
-# json that looks like {"mem": 10240, "foo": "bar"}. This module helps us
-# accomplish that task.
-#
-# We do not attempt to duplicate the checking done in
-# client/_client.py:Value here. That class will verify that the
-# constraints keys are valid, and that we can successfully dump the
-# constraints dict to json.
-#
-# Once https://bugs.launchpad.net/juju/+bug/1645402 is addressed, this
-# module should be deprecated.
-#
-
-import re
-
-# Matches on a string specifying memory size
-MEM = re.compile('^[1-9][0-9]*[MGTP]$')
-
-# Multiplication factors to get Megabytes
-# https://github.com/juju/juju/blob/master/constraints/constraints.go#L666
-FACTORS = {
-    "M": 1,
-    "G": 1024,
-    "T": 1024 * 1024,
-    "P": 1024 * 1024 * 1024
-}
-
-LIST_KEYS = {'tags', 'spaces'}
-
-SNAKE1 = re.compile(r'(.)([A-Z][a-z]+)')
-SNAKE2 = re.compile('([a-z0-9])([A-Z])')
-
-
-def parse(constraints):
-    """
-    Constraints must be expressed as a string containing only spaces
-    and key value pairs joined by an '='.
-
-    """
-    if not constraints:
-        return None
-
-    if type(constraints) is dict:
-        # Fowards compatibilty: already parsed
-        return constraints
-
-    constraints = {
-        normalize_key(k): (
-            normalize_list_value(v) if k in LIST_KEYS else
-            normalize_value(v)
-        ) for k, v in [s.split("=") for s in constraints.split(" ")]}
-
-    return constraints
-
-
-def normalize_key(key):
-    key = key.strip()
-
-    key = key.replace("-", "_")  # Our _client lib wants "_" in place of "-"
-
-    # Convert camelCase to snake_case
-    key = SNAKE1.sub(r'\1_\2', key)
-    key = SNAKE2.sub(r'\1_\2', key).lower()
-
-    return key
-
-
-def normalize_value(value):
-    value = value.strip()
-
-    if MEM.match(value):
-        # Translate aliases to Megabytes. e.g. 1G = 10240
-        return int(value[:-1]) * FACTORS[value[-1:]]
-
-    if value.isdigit():
-        return int(value)
-
-    return value
-
-
-def normalize_list_value(value):
-    values = value.strip().split(',')
-    return [normalize_value(value) for value in values]