Initial commit

[ta/infra-ansible.git] / roles / change_kernel_cmdline / filter_plugins / change_kernel_cmdline_helpers.py

diff --git a/roles/change_kernel_cmdline/filter_plugins/change_kernel_cmdline_helpers.py b/roles/change_kernel_cmdline/filter_plugins/change_kernel_cmdline_helpers.py
new file mode 100644 (file)
index 0000000..0fa9273
--- /dev/null
+++ b/roles/change_kernel_cmdline/filter_plugins/change_kernel_cmdline_helpers.py
@@ -0,0 +1,64 @@
+#!/usr/bin/python
+
+# Copyright 2019 Nokia
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import itertools
+import re
+
+def cpulist_to_set(cl):
+    r = set()
+    for e in cl.split(','):
+        if '-' in e:
+            p = e.split('-')
+        else:
+            p = [e, e]
+        r.update(map(str, range(int(p[0]), int(p[1]) + 1)))
+    return list(r)
+
+def set_to_cpulist(cs):
+    r = []
+    for k, g in itertools.groupby(enumerate(sorted(cs, key=int)), lambda (i, v): int(v) - i):
+        t = list(g)
+        if len(t) == 1:
+            r.append(str(t[0][1]))
+        else:
+            r.append('-'.join([str(t[0][1]), str(t[-1][1])]))
+    return ','.join(r)
+
+def cpulist_combine(conf, name, lst):
+    r = set()
+    for s in lst:
+        if s in conf:
+            r.update(conf[s]['set'])
+    if len(r) > 0:
+        conf[name] = { 'set': sorted(r), 'list': set_to_cpulist(r) }
+    return conf
+
+def cmdline_to_list(cmdl):
+    return re.findall('(?:[^" ]|"[^"]*")+', cmdl)
+
+def list_to_cmdline(lst):
+    return ' '.join(lst)
+
+class FilterModule(object):
+    def filters(self):
+        return {
+            'cpulist_to_set': cpulist_to_set,
+            'set_to_cpulist': set_to_cpulist,
+            'cpulist_combine': cpulist_combine,
+            'cmdline_to_list': cmdline_to_list,
+            'list_to_cmdline': list_to_cmdline
+        }
+