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media: ClearLinux: default cfg - use /usr/share/defaults/etc instead of /etc(CL#751683)
Description: The ClearLinux "stateless" feature includes movement of all default configuration out of /etc to elsewhere, such as to /usr/share/defaults/etc.A ClearLinux bundle (ClearLinux's meta-package concept) will no longer install any files under /etc. Directory "/etc" now is intended to only receive content that is system-specific. Ultimately, the cause of these failures is that the ClearLinux distribution configures its built-in RPM macros to automatically delete all files that a package might place under /etc.  Then, rpmbuild complains about the missing files. Change-Id: I8cb2693641283a52cdc14ecabd3a680b3c1d01bd
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‎CMakeLists.txt

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cmake_minimum_required(VERSION 3.5)
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include(os_release_info.cmake)
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get_os_release_info(os_name os_version)
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if("${os_name}" STREQUAL "clear-linux-os")
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# clear-linux-os distribution avoids /etc for distribution defaults.
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# Set this variable explicitly before including GNUInstallDirs.
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set(CMAKE_INSTALL_SYSCONFDIR "usr/share/defaults/etc")
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endif()
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include(GNUInstallDirs)
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add_subdirectory(cmrtlib)

‎os_release_info.cmake

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# Copyright (c) 2018, Intel Corporation
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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if(NOT DEFINED _os_release_info)
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set(_os_release_info TRUE)
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# os_release_info.cmake - Function to dump OS name and version
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# This file has no dependencies on other files (e.g., functions or definitions)
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# of the local cmake environment.
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# Set cmake policies for at least this level:
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cmake_minimum_required(VERSION 2.8.12)
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# Function get_os_release_info - Determine and return OS name and version
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#
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# Args:
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# 1. the name of a variable to receive os_name
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# 2. the name of a variable to receive os_version
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#
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# Return values: (Quotation marks are always stripped).
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# Upon failure, return values are null strings.
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#
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# Examples:
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# os_name os_version
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# -------------- -------
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# clear-linux-os 21180 (Changes twice daily)
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# ubuntu 12.04 16.04 17.10 18.04
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# fedora 27
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# centos 6.9 7.4.1708
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#
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# Potential sources are tried (in order of preference) until a
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# suitable one is found.
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# Implementation documentation:
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#
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# The potential sources, in order, are as follows.
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# - /etc/centos-release
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# Centos 7 also has /etc/os-release. File /etc/os-release is less
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# precise about the Centos version (e.g., "7" instead of "7.4.1708").
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# For that reason, this file is checked first.
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# Examples:
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# CentOS release 6.9 (Final)
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# CentOS Linux release 7.4.1708 (Core)
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# - /usr/lib/os-release
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# Present for Clear Linux, modern Fedora, and Ubuntu since some time
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# between 14.04 and 16.04. The ID and VERSION_ID values are used.
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# Examples:
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# ID=clear-linux-os VERSION_ID=21180
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# ID=fedora VERSION_ID=27
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# ID=ubuntu VERSION_ID="14.04"
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# ID=ubuntu VERSION_ID="16.04"
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# ID="ubuntu" VERSION_ID="17.10"
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# - /etc/os-release - Same form as (sometimes a link to) /usr/lib/os-release
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# ID="Ubuntu" VERSION_ID="12.04"
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# ID="Ubuntu" VERSION_ID="14.04"
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# with a symbolic link: /etc/os-release -> ../usr/lib/os-release
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# ID="CentOS Linux" VERSION_ID="7" Also: ID_LIKE="rhel fedora"
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# - /etc/lsb-release
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# For Centos, not too meaningful.
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# Other "OS"s are more reasonable:
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# DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04
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# DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04
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# DISTRIB_ID=Ubuntu DISTRIB_RELEASE=17.10
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function(get_os_release_info _vn_id _vn_version_id)
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set(_var_id "")
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set(_var_version_id "")
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if("${_var_id}" STREQUAL "")
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set(file_path "/etc/centos-release")
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if(EXISTS "${file_path}")
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# Example: CentOS release 6.9 (Final)
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file(STRINGS "${file_path}" file_list LIMIT_COUNT 1)
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list(GET file_list 0 file_line)
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# Remove all parenthesized items.
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string(REGEX REPLACE "\\([^)]+\\)" "" file_line "${file_line}")
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# Extract start and end, discard optional "version" or "release"
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string(REGEX MATCH "^([A-Za-z0-9_]+)( +(version|release))? +(.*)$" _dummy "${file_line}")
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# 1 2 3 4
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set(_var_id "${CMAKE_MATCH_1}")
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set(_var_version_id "${CMAKE_MATCH_4}")
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endif()
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endif()
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if("${_var_id}" STREQUAL "")
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if(EXISTS "/usr/lib/os-release")
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set(file_path "/usr/lib/os-release")
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elseif(EXISTS "/etc/os-release")
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set(file_path "/etc/os-release")
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else()
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set(file_path "")
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endif()
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if(NOT "${file_path}" STREQUAL "")
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file(STRINGS "${file_path}" data_list REGEX "^(ID|VERSION_ID)=")
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# Look for lines like "ID="..." and VERSION_ID="..."
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foreach(_var ${data_list})
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if("${_var}" MATCHES "^(ID)=(.*)$")
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set(_var_id "${CMAKE_MATCH_2}")
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elseif("${_var}" MATCHES "^(VERSION_ID)=(.*)$")
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set(_var_version_id "${CMAKE_MATCH_2}")
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endif()
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endforeach()
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endif()
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endif()
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if("${_var_id}" STREQUAL "")
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set(file_path "/etc/lsb-release")
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if(EXISTS "${file_path}")
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file(STRINGS "${file_path}" data_list REGEX "^(DISTRIB_ID|DISTRIB_RELEASE)=")
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# Look for lines like "DISTRIB_ID="..." and DISTRIB_RELEASE="..."
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foreach(_var ${data_list})
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if("${_var}" MATCHES "^(DISTRIB_ID)=(.*)$")
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set(_var_id "${CMAKE_MATCH_2}")
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elseif("${_var}" MATCHES "^(DISTRIB_RELEASE)=(.*)$")
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set(_var_version_id "${CMAKE_MATCH_2}")
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endif()
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endforeach()
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endif()
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endif()
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string(TOLOWER "${_var_id}" "_var_id")
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string(STRIP "${_var_id}" _var_id)
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string(STRIP "${_var_version_id}" _var_version_id)
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# Remove any enclosing quotation marks
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string(REGEX REPLACE "^\"(.*)\"$" "\\1" _var_id "${_var_id}")
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string(REGEX REPLACE "^\"(.*)\"$" "\\1" _var_version_id "${_var_version_id}")
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if(NOT "${_vn_id}" STREQUAL "")
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set(${_vn_id} "${_var_id}" PARENT_SCOPE)
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endif()
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if(NOT "${_vn_version_id}" STREQUAL "")
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set(${_vn_version_id} "${_var_version_id}" PARENT_SCOPE)
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endif()
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endfunction()
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endif(NOT DEFINED _os_release_info)

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