chore: make yuzu REUSE compliant
[REUSE] is a specification that aims at making file copyright
information consistent, so that it can be both human and machine
readable. It basically requires that all files have a header containing
copyright and licensing information. When this isn't possible, like
when dealing with binary assets, generated files or embedded third-party
dependencies, it is permitted to insert copyright information in the
`.reuse/dep5` file.
Oh, and it also requires that all the licenses used in the project are
present in the `LICENSES` folder, that's why the diff is so huge.
This can be done automatically with `reuse download --all`.
The `reuse` tool also contains a handy subcommand that analyzes the
project and tells whether or not the project is (still) compliant,
`reuse lint`.
Following REUSE has a few advantages over the current approach:
- Copyright information is easy to access for users / downstream
- Files like `dist/license.md` do not need to exist anymore, as
`.reuse/dep5` is used instead
- `reuse lint` makes it easy to ensure that copyright information of
files like binary assets / images is always accurate and up to date
To add copyright information of files that didn't have it I looked up
who committed what and when, for each file. As yuzu contributors do not
have to sign a CLA or similar I couldn't assume that copyright ownership
was of the "yuzu Emulator Project", so I used the name and/or email of
the commit author instead.
[REUSE]: https://reuse.software
Follow-up to 01cf05bc75b1e47beb08937439f3ed9339e7b254
2022-05-14 20:06:02 -04:00
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# SPDX-FileCopyrightText: 2020 yuzu Emulator Project
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# SPDX-License-Identifier: GPL-2.0-or-later
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2020-05-08 17:09:29 -04:00
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find_package(PkgConfig QUIET)
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pkg_check_modules(PC_lz4 QUIET lz4)
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find_path(lz4_INCLUDE_DIR
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NAMES lz4.h
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PATHS ${PC_lz4_INCLUDE_DIRS}
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)
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find_library(lz4_LIBRARY
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NAMES lz4
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PATHS ${PC_lz4_LIBRARY_DIRS}
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)
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if(lz4_INCLUDE_DIR)
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file(STRINGS "${lz4_INCLUDE_DIR}/lz4.h" _lz4_version_lines
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REGEX "#define[ \t]+LZ4_VERSION_(MAJOR|MINOR|RELEASE)")
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string(REGEX REPLACE ".*LZ4_VERSION_MAJOR *\([0-9]*\).*" "\\1" _lz4_version_major "${_lz4_version_lines}")
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string(REGEX REPLACE ".*LZ4_VERSION_MINOR *\([0-9]*\).*" "\\1" _lz4_version_minor "${_lz4_version_lines}")
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string(REGEX REPLACE ".*LZ4_VERSION_RELEASE *\([0-9]*\).*" "\\1" _lz4_version_release "${_lz4_version_lines}")
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set(lz4_VERSION "${_lz4_version_major}.${_lz4_version_minor}.${_lz4_version_release}")
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unset(_lz4_version_major)
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unset(_lz4_version_minor)
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unset(_lz4_version_release)
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unset(_lz4_version_lines)
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(lz4
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FOUND_VAR lz4_FOUND
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REQUIRED_VARS
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lz4_LIBRARY
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lz4_INCLUDE_DIR
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VERSION_VAR lz4_VERSION
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)
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if(lz4_FOUND)
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set(lz4_LIBRARIES ${lz4_LIBRARY})
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set(lz4_INCLUDE_DIRS ${lz4_INCLUDE_DIR})
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set(lz4_DEFINITIONS ${PC_lz4_CFLAGS_OTHER})
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endif()
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if(lz4_FOUND AND NOT TARGET lz4::lz4)
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add_library(lz4::lz4 UNKNOWN IMPORTED)
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set_target_properties(lz4::lz4 PROPERTIES
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IMPORTED_LOCATION "${lz4_LIBRARY}"
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INTERFACE_COMPILE_OPTIONS "${PC_lz4_CFLAGS_OTHER}"
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INTERFACE_INCLUDE_DIRECTORIES "${lz4_INCLUDE_DIR}"
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)
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endif()
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mark_as_advanced(
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lz4_INCLUDE_DIR
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lz4_LIBRARY
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)
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