37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
#!/usr/bin/env python
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from jinja2 import contextfilter
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from jinja2 import Undefined
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@contextfilter
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def customizable(context, val_list, call_type):
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# NOTE(mgoddard): Don't try to customise undefined values. There are cases
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# where this might happen, for example using a generic template overrides
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# file for building multiple image install types and/or distros, where
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# variables are not defined in every case.
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if isinstance(val_list, Undefined):
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return val_list
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name = context['image_name'].replace("-", "_") + "_" + call_type + "_"
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if name + "override" in context:
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return context[name + "override"]
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if name + "append" in context:
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val_list.extend(context[name + "append"])
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if name + "remove" in context:
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for removal in context[name + "remove"]:
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if removal in val_list:
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val_list.remove(removal)
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return val_list
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