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build: enable vendoring dependencies #7199

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136 changes: 118 additions & 18 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,18 +6,19 @@
# See http://swift.org/LICENSE.txt for license information
# See http://swift.org/CONTRIBUTORS.txt for Swift project authors

cmake_minimum_required(VERSION 3.19)

if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()

if(POLICY CMP0091)
cmake_policy(SET CMP0091 NEW)
endif()

cmake_minimum_required(VERSION 3.19)

list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)

project(SwiftPM LANGUAGES C Swift)

option(BUILD_SHARED_LIBS "Build shared libraries by default" YES)
option(FIND_PM_DEPS "Search for all external Package Manager dependencies" YES)

set(CMAKE_Swift_LANGUAGE_VERSION 5)
set(CMAKE_Swift_MODULE_DIRECTORY ${CMAKE_BINARY_DIR}/swift)
Expand All @@ -27,32 +28,131 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreadedDLL)
set(CMAKE_POSITION_INDEPENDENT_CODE ${BUILD_SHARED_LIBS})

if(FIND_PM_DEPS)
find_package(SwiftSystem CONFIG REQUIRED)
find_package(TSC CONFIG REQUIRED)
# Toolchain Vended dependencies
find_package(dispatch QUIET)
find_package(Foundation QUIET)

include(FetchContent)

set(_SPM_SAVED_BUILD_TESTING ${BUILD_TESTING})
set(_SPM_SAVED_BUILD_EXAMPLES ${BUILD_EXAMPLES})
set(_SPM_VENDOR_DEPENDENCIES)

set(BUILD_EXAMPLES NO)
set(BUILD_TESTING NO)

find_package(ArgumentParser CONFIG)
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Do you need to explicitly call find_package first? If you don't do anything FetchContent will call find_package first before doing anything, and only if it's not found will it do things. To tell it to use the CONFIG search mode, add do

FetchContent_Declare(ArgumentParser
  GIT_REPOSITORY https://github.com/apple/swift-argument-parser
  GIT_TAG 1.2.3
  FIND_PACKAGE_ARGS CONFIG)

https://cmake.org/cmake/help/latest/module/FetchContent.html#command:fetchcontent_declare -- FIND_PACKAGE_ARGS

erm... wait, that's only available in 3.24+. That makes things more challenging.

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I think I'll leave this as is until we get a newer CMake.

if(NOT ArgumentParser_FOUND)
message(STATUS "Vending swift-argument-parser")
FetchContent_Declare(ArgumentParser
GIT_REPOSITORY https://github.com/apple/swift-argument-parser
GIT_TAG 1.2.3)
list(APPEND _SPM_VENDOR_DEPENDENCIES ArgumentParser)
endif()

find_package(TSC CONFIG)
if(NOT TSC_FOUND)
message(STATUS "Vending swift-tools-support-core")
FetchContent_Declare(ToolsSupportCore
GIT_REPOSITORY https://github.com/apple/swift-tools-support-core
GIT_TAG main)
list(APPEND _SPM_VENDOR_DEPENDENCIES ToolsSupportCore)
endif()

find_package(LLBuild CONFIG)
if(NOT LLBuild_FOUND)
find_package(LLBuild CONFIG)
if(NOT LLBuild_FOUND)
if(APPLE)
find_package(LLBuild REQUIRED)
else()
message(STATUS "Vending swift-llbuild")
set(LLBUILD_SUPPORT_BINDINGS Swift)
FetchContent_Declare(LLBuild
GIT_REPOSITORY https://github.com/apple/swift-llbuild
GIT_TAG main)
list(APPEND _SPM_VENDOR_DEPENDENCIES LLBuild)
endif()
endif()

find_package(ArgumentParser CONFIG REQUIRED)
find_package(SwiftDriver CONFIG REQUIRED)
find_package(SwiftCollections CONFIG REQUIRED)
find_package(SwiftASN1 CONFIG REQUIRED)
find_package(SwiftCertificates CONFIG REQUIRED)
find_package(SwiftCrypto CONFIG REQUIRED)
find_package(SwiftASN1 CONFIG)
if(NOT SwiftASN1_FOUND)
message(STATUS "Vending swift-asn1")
FetchContent_Declare(ASN1
GIT_REPOSITORY https://github.com/apple/swift-asn1
GIT_TAG 1.1.0)
list(APPEND _SPM_VENDOR_DEPENDENCIES ASN1)
endif()

find_package(SwiftCertificates CONFIG)
if(NOT SwiftCertificates_FOUND)
message(STATUS "Vending swift-certificates")
FetchContent_Declare(Certificates
GIT_REPOSITORY https://github.com/apple/swift-certificates
GIT_TAG main)
list(APPEND _SPM_VENDOR_DEPENDENCIES Certificates)
endif()

find_package(SwiftCollections CONFIG)
if(NOT SwiftCollections_FOUND)
message(STATUS "Vending swift-collections")
FetchContent_Declare(Collections
GIT_REPOSITORY https://github.com/apple/swift-collections
GIT_TAG release/1.0)
list(APPEND _SPM_VENDOR_DEPENDENCIES Collections)
endif()

find_package(SwiftCrypto CONFIG)
if(NOT SwiftCrypto_FOUND)
message(STATUS "Vending swift-crypto")
FetchContent_Declare(Crypto
GIT_REPOSITORY https://github.com/apple/swift-crypto
GIT_TAG 3.0.0)
list(APPEND _SPM_VENDOR_DEPENDENCIES Crypto)
endif()

find_package(SwiftDriver CONFIG)
if(NOT SwiftDriver_FOUND)
message(STATUS "Vending swift-driver")
FetchContent_Declare(Driver
GIT_REPOSITORY https://github.com/apple/swift-driver
GIT_TAG main)
list(APPEND _SPM_VENDOR_DEPENDENCIES Driver)
endif()

find_package(SwiftSystem CONFIG)
if(NOT SwiftSystem_FOUND)
message(STATUS "Vending swift-system")
FetchContent_Declare(System
GIT_REPOSITORY https://github.com/apple/swift-system
GIT_TAG 1.1.1)
list(APPEND _SPM_VENDOR_DEPENDENCIES System)
endif()

if(_SPM_VENDOR_DEPENDENCIES)
FetchContent_MakeAvailable(${_SPM_VENDOR_DEPENDENCIES})

if(NOT TARGET SwiftCollections::DequeModule)
add_library(SwiftCollections::DequeModule ALIAS DequeModule)
endif()
if(NOT TARGET SwiftCollections::OrderedCollections)
add_library(SwiftCollections::OrderedCollections ALIAS OrderedCollections)
endif()

if(NOT TARGET SwiftSystem::SystemPackage)
add_library(SwiftSystem::SystemPackage ALIAS SystemPackage)
endif()
endif()

find_package(dispatch QUIET)
find_package(Foundation QUIET)
find_package(SQLite3 REQUIRED)

# Enable `package` modifier for the whole package.
add_compile_options("$<$<COMPILE_LANGUAGE:Swift>:-package-name;SwiftPM>")

set(BUILD_TESTING ${_SPM_SAVED_BUILD_TESTING})
set(BUILD_EXAMPLES ${_SPM_SAVED_BUILD_EXAMPLES})

add_subdirectory(Sources)
add_subdirectory(cmake/modules)