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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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72 lines
2.7 KiB
72 lines
2.7 KiB
# Copyright 2015 gRPC authors. |
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# |
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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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"""Buildgen transitive dependencies |
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This takes the list of libs, node_modules, and targets from our |
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yaml dictionary, and adds to each the transitive closure |
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of the list of dependencies. |
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""" |
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def transitive_deps(lib_map, node): |
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"""Returns a list of transitive dependencies from node. |
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Recursively iterate all dependent node in a depth-first fashion and |
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list a result using a topological sorting. |
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""" |
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result = [] |
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seen = set() |
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start = node |
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def recursive_helper(node): |
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for dep in node.get("deps", []): |
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if dep not in seen: |
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seen.add(dep) |
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next_node = lib_map.get(dep) |
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if next_node: |
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recursive_helper(next_node) |
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else: |
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# For some deps, the corresponding library entry doesn't exist, |
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# but we still want to preserve the dependency so that the build |
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# system can provide custom handling for that dependency. |
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result.append(dep) |
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if node is not start: |
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result.insert(0, node["name"]) |
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recursive_helper(node) |
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return result |
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def mako_plugin(dictionary): |
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"""The exported plugin code for transitive_dependencies. |
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Iterate over each list and check each item for a deps list. We add a |
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transitive_deps property to each with the transitive closure of those |
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dependency lists. The result list is sorted in a topological ordering. |
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""" |
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lib_map = {lib["name"]: lib for lib in dictionary.get("libs")} |
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for target_name, target_list in list(dictionary.items()): |
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for target in target_list: |
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if isinstance(target, dict): |
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if "deps" in target or target_name == "libs": |
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if not "deps" in target: |
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# make sure all the libs have the "deps" field populated |
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target["deps"] = [] |
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target["transitive_deps"] = transitive_deps(lib_map, target) |
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python_dependencies = dictionary.get("python_dependencies") |
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python_dependencies["transitive_deps"] = transitive_deps( |
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lib_map, python_dependencies |
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)
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