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https://github.com/firebase/firebase-ios-sdk
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71 lines
2.4 KiB
CMake
71 lines
2.4 KiB
CMake
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# Copyright 2018 Google
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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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include(CMakeParseArguments)
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# Assemble the git-related arguments to an external project making use of the
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# latest features where available but avoiding them when run under CMake
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# versions that don't support them.
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#
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# The complete set of git-related arguments are stored as a list in the
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# variable named by RESULT_VAR in the calling scope.
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#
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# Currently this handles:
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# * GIT_SUBMODULES -- added on CMake 3.0 or later. Earlier CMakes will
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# check out all submodules.
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# * GIT_SHALLOW -- added by default on CMake 3.6 or later. Disable by passing
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# GIT_SHALLOW OFF
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# * GIT_PROGRESS -- added by default on CMake 3.8 or later. Disable by
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# passing GIT_PROGRESS OFF
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function(ExternalProject_GitSource RESULT_VAR)
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# Parse arguments
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set(options "")
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set(single_value GIT_REPOSITORY GIT_TAG GIT_PROGRESS GIT_SHALLOW)
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set(multi_value GIT_SUBMODULES)
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cmake_parse_arguments(EP "${options}" "${single_value}" "${multi_value}" ${ARGN})
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set(
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result
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GIT_REPOSITORY ${EP_GIT_REPOSITORY}
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GIT_TAG ${EP_GIT_TAG}
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${EP_UNPARSED_ARGUMENTS}
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)
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# CMake 3.0 added support for constraining the set of submodules to clone
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if(NOT (CMAKE_VERSION VERSION_LESS "3.0") AND EP_GIT_SUBMODULES)
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list(APPEND result GIT_SUBMODULES ${EP_GIT_SUBMODULES})
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endif()
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# CMake 3.6 added support for shallow git clones. Use a shallow clone if
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# available
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if(NOT (CMAKE_VERSION VERSION_LESS "3.6"))
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if(NOT EP_GIT_SHALLOW)
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set(EP_GIT_SHALLOW ON)
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endif()
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list(APPEND result GIT_SHALLOW ${EP_GIT_SHALLOW})
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endif()
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# CMake 3.8 added support for showing progress for large downloads
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if(NOT (CMAKE_VERSION VERSION_LESS "3.8"))
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if(NOT EP_GIT_PROGRESS)
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set(EP_GIT_PROGRESS ON)
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endif()
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list(APPEND result GIT_PROGRESS ${EP_GIT_PROGRESS})
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endif()
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set(${RESULT_VAR} ${result} PARENT_SCOPE)
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endfunction()
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