mirror of
https://github.com/mongodb/mongo.git
synced 2024-11-29 16:47:28 +01:00
73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
# Copyright 2016 MongoDB Inc.
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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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# If available, uses Git metadata to decide whether files are out of date.
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def generate(env, **kwargs):
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# Grab the existing decider functions out of the environment
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# so we can invoke them when we can't use Git.
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base_decider = env.decide_target
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if base_decider != env.decide_source:
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raise Exception("Decider environment seems broken")
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from git import Git
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thisRepo = Git(env.Dir("#").abspath)
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currentGitState = thisRepo.ls_files("--stage")
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lines = currentGitState.split("\n")
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file_sha1_map = {}
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for line in lines:
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line_content = line.split()
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file_sha1_map[env.File(line_content[3]).path] = line_content[1]
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for m in thisRepo.ls_files("-m").split("\n"):
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if m:
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del file_sha1_map[env.File(m).path]
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def is_known_to_git(dependency):
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return str(dependency) in file_sha1_map
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def git_says_file_is_up_to_date(dependency, prev_ni):
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gitInfoForDep = file_sha1_map[str(dependency)]
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if prev_ni is None:
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dependency.get_ninfo().csig = gitInfoForDep
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return False
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if not (hasattr(prev_ni, "csig")):
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prev_ni.csig = gitInfoForDep
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result = gitInfoForDep == prev_ni.csig
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return result
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def MongoGitDecider(dependency, target, prev_ni, node):
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if not is_known_to_git(dependency):
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return base_decider(dependency, target, prev_ni, node)
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return not git_says_file_is_up_to_date(dependency, prev_ni)
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env.Decider(MongoGitDecider)
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def exists(env):
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try:
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from git import Git
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Git(env.Dir("#").abspath).ls_files("--stage")
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return True
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except:
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return False
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