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authorEvan Wilde <etceterawilde@gmail.com>2022-11-11 09:59:59 -0800
committerBrad King <brad.king@kitware.com>2022-11-17 13:05:22 -0500
commit38c8807c5ac5cdc7c8d5f6ff48b521b0a2e3c81c (patch)
treee4556d10953db029979b50e63421dd976d9d8ad9 /Tests/RunCMake/Swift
parent0c71f3c94388d7f526bb8254c2162d2827fbeca3 (diff)
downloadcmake-38c8807c5ac5cdc7c8d5f6ff48b521b0a2e3c81c.tar.gz
Ninja: Avoid re-linking a Swift executable on every build
Swift doesn't emit swiftmodules for executables, so we shouldn't put it in dependency graph. Ninja sees the "missing" dependency and always tries to rebuild/re-link the target.
Diffstat (limited to 'Tests/RunCMake/Swift')
-rw-r--r--Tests/RunCMake/Swift/NoWorkToDo-nowork-stdout.txt1
-rw-r--r--Tests/RunCMake/Swift/NoWorkToDo.cmake2
-rw-r--r--Tests/RunCMake/Swift/RunCMakeTest.cmake10
-rw-r--r--Tests/RunCMake/Swift/hello.swift0
4 files changed, 13 insertions, 0 deletions
diff --git a/Tests/RunCMake/Swift/NoWorkToDo-nowork-stdout.txt b/Tests/RunCMake/Swift/NoWorkToDo-nowork-stdout.txt
new file mode 100644
index 0000000000..60a9228b0d
--- /dev/null
+++ b/Tests/RunCMake/Swift/NoWorkToDo-nowork-stdout.txt
@@ -0,0 +1 @@
+^ninja: no work to do
diff --git a/Tests/RunCMake/Swift/NoWorkToDo.cmake b/Tests/RunCMake/Swift/NoWorkToDo.cmake
new file mode 100644
index 0000000000..e86a8610df
--- /dev/null
+++ b/Tests/RunCMake/Swift/NoWorkToDo.cmake
@@ -0,0 +1,2 @@
+enable_language(Swift)
+add_executable(hello hello.swift)
diff --git a/Tests/RunCMake/Swift/RunCMakeTest.cmake b/Tests/RunCMake/Swift/RunCMakeTest.cmake
index 21d5a2520e..7f4464d23d 100644
--- a/Tests/RunCMake/Swift/RunCMakeTest.cmake
+++ b/Tests/RunCMake/Swift/RunCMakeTest.cmake
@@ -14,6 +14,16 @@ elseif(RunCMake_GENERATOR STREQUAL Ninja)
run_cmake(SwiftMultiArch)
unset(RunCMake_TEST_OPTIONS)
endif()
+
+ # Test that a second build with no changes does nothing.
+ block()
+ run_cmake(NoWorkToDo)
+ set(RunCMake_TEST_NO_CLEAN 1)
+ set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/NoWorkToDo-build)
+ set(RunCMake_TEST_OUTPUT_MERGE 1)
+ run_cmake_command(NoWorkToDo-build ${CMAKE_COMMAND} --build .)
+ run_cmake_command(NoWorkToDo-nowork ${CMAKE_COMMAND} --build . -- -d explain)
+ endblock()
endif()
elseif(RunCMake_GENERATOR STREQUAL "Ninja Multi-Config")
if(CMAKE_Swift_COMPILER)
diff --git a/Tests/RunCMake/Swift/hello.swift b/Tests/RunCMake/Swift/hello.swift
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/Tests/RunCMake/Swift/hello.swift