Break SwiftRemoteMirror into its own target.

We want to be able to build a target with just the platform-specific
libswiftRemoteMirror library. This should be a change in build logic
for existing presets but allows for a separate preset to be defined
that just builds the library if/when it's necessary.

- Add --build-swift-remote-mirror option to build-script-impl
- Add swift-remote-mirror known install component.
- Only add SwiftRemoteMirror targets if SWIFT_BUILD_REMOTE_MIRROR is on.
- Move libswiftRemoteMirror into the swift-remote-mirror install component.
- Add swift-remote-mirror install components to existing presets.

rdar://problem/27085666

Author: bitjammer

CMakeLists.txt

@@ -48,6 +48,10 @@ option(SWIFT_BUILD_TOOLS
     "Build the Swift compiler and other tools"
     TRUE)
 
+option(SWIFT_BUILD_REMOTE_MIRROR
+    "Build the Swift Remote Mirror Library"
+    TRUE)
+
 option(SWIFT_BUILD_DYNAMIC_STDLIB
     "Build dynamic variants of the Swift standard library"
     TRUE)
@@ -120,7 +124,7 @@ set(SWIFT_ENABLE_GOLD_LINKER FALSE CACHE BOOL
     "Enable using the gold linker when available")
 
 set(_SWIFT_KNOWN_INSTALL_COMPONENTS
-    "autolink-driver;compiler;clang-builtin-headers;clang-resource-dir-symlink;clang-builtin-headers-in-clang-resource-dir;stdlib;stdlib-experimental;sdk-overlay;editor-integration;tools;testsuite-tools;toolchain-dev-tools;dev;license;sourcekit-xpc-service;sourcekit-inproc;swift-remote-mirror-headers")
+    "autolink-driver;compiler;clang-builtin-headers;clang-resource-dir-symlink;clang-builtin-headers-in-clang-resource-dir;stdlib;stdlib-experimental;sdk-overlay;editor-integration;tools;testsuite-tools;toolchain-dev-tools;dev;license;sourcekit-xpc-service;sourcekit-inproc;swift-remote-mirror;swift-remote-mirror-headers")
 
 # Set the SWIFT_INSTALL_COMPONENTS variable to the default value if it is not passed in via -D
 set(SWIFT_INSTALL_COMPONENTS "${_SWIFT_KNOWN_INSTALL_COMPONENTS}" CACHE STRING

stdlib/public/CMakeLists.txt

@@ -31,6 +31,9 @@ if(SWIFT_BUILD_STDLIB)
   add_subdirectory(stubs)
   add_subdirectory(core)
   add_subdirectory(SwiftOnoneSupport)
+endif()
+
+if(SWIFT_BUILD_STDLIB OR SWIFT_BUILD_REMOTE_MIRROR)
   add_subdirectory(Reflection)
   add_subdirectory(SwiftRemoteMirror)
 endif()

stdlib/public/SwiftRemoteMirror/CMakeLists.txt

@@ -4,5 +4,5 @@ if(SWIFT_BUILD_DYNAMIC_STDLIB)
   add_swift_library(swiftRemoteMirror SHARED TARGET_LIBRARY DONT_EMBED_BITCODE
       SwiftRemoteMirror.cpp
       LINK_LIBRARIES swiftReflection
-      INSTALL_IN_COMPONENT stdlib)
+      INSTALL_IN_COMPONENT swift-remote-mirror)
 endif()

utils/build-presets.ini

@@ -16,7 +16,7 @@
 [preset: mixin_buildbot_install_components]
 dash-dash
 
-swift-install-components=compiler;clang-builtin-headers;stdlib;sdk-overlay;editor-integration;tools;testsuite-tools;sourcekit-xpc-service;swift-remote-mirror-headers;
+swift-install-components=compiler;clang-builtin-headers;stdlib;sdk-overlay;editor-integration;tools;testsuite-tools;sourcekit-xpc-service;swift-remote-mirror;swift-remote-mirror-headers;
 
 
 [preset: mixin_buildbot_trunk_base]
@@ -590,7 +590,7 @@ install-llbuild
 install-swiftpm
 install-xctest
 install-prefix=/usr
-swift-install-components=autolink-driver;compiler;clang-builtin-headers;stdlib;sdk-overlay;license
+swift-install-components=autolink-driver;compiler;clang-builtin-headers;stdlib;swift-remote-mirror;sdk-overlay;license
 build-swift-static-stdlib
 build-swift-stdlib-unittest-extra
 
@@ -652,7 +652,7 @@ install-foundation
 install-swiftpm
 install-xctest
 install-prefix=/usr
-swift-install-components=autolink-driver;compiler;clang-builtin-headers;stdlib;sdk-overlay;dev
+swift-install-components=autolink-driver;compiler;clang-builtin-headers;stdlib;swift-remote-mirror;sdk-overlay;dev
 build-swift-static-stdlib
 skip-test-lldb
 
@@ -763,7 +763,7 @@ mixin-preset=
 
 dash-dash
 
-swift-install-components=compiler;clang-builtin-headers;stdlib;sdk-overlay;license;sourcekit-xpc-service;swift-remote-mirror-headers
+swift-install-components=compiler;clang-builtin-headers;stdlib;sdk-overlay;license;sourcekit-xpc-service;swift-remote-mirror;swift-remote-mirror-headers
 llvm-install-components=libclang;libclang-headers
 
 # Path to the .tar.gz package we would create.

utils/build-script-impl

@@ -161,6 +161,7 @@ KNOWN_SETTINGS=(
     build-swift-dynamic-sdk-overlay   ""         "set to 1 to build dynamic variants of the Swift SDK overlay"
     build-swift-static-sdk-overlay    ""         "set to 1 to build static variants of the Swift SDK overlay"
     build-swift-examples        "1"              "set to 1 to build examples"
+    build-swift-remote-mirror   "1"              "set to 1 to build the Swift Remote Mirror library"
     build-serialized-stdlib-unittest "0"         "set to 1 to build the StdlibUnittest module with -sil-serialize-all"
     build-sil-debugging-stdlib  "0"              "set to 1 to build the Swift standard library with -gsil to enable debugging and profiling on SIL level"
     check-incremental-compilation "0"            "set to 1 to compile swift libraries multiple times to check if incremental compilation works"
@@ -1873,6 +1874,7 @@ for host in "${ALL_HOSTS[@]}"; do
                     -DSWIFT_NATIVE_CLANG_TOOLS_PATH:STRING="${native_clang_tools_path}"
                     -DSWIFT_NATIVE_SWIFT_TOOLS_PATH:STRING="${native_swift_tools_path}"
                     -DSWIFT_BUILD_TOOLS:BOOL=$(true_false "${BUILD_SWIFT_TOOLS}")
+                    -DSWIFT_BUILD_REMOTE_MIRROR:BOOL=$(true_false "${BUILD_SWIFT_REMOTE_MIRROR}")
                     -DSWIFT_SERIALIZE_STDLIB_UNITTEST:BOOL=$(true_false "${BUILD_SERIALIZED_STDLIB_UNITTEST}")
                     -DSWIFT_STDLIB_SIL_DEBUGGING:BOOL=$(true_false "${BUILD_SIL_DEBUGGING_STDLIB}")
                     -DSWIFT_CHECK_INCREMENTAL_COMPILATION:BOOL=$(true_false "${CHECK_INCREMENTAL_COMPILATION}")