cmExportBuildFileGenerator: handle genex-wrapped source paths

Previously a fileset with `$<$<CONFIG:Debug>:some_file>` would show up
as-is (with escaping) in the build directory export. Instead, evaluate
all fileset entries as generator expressions and list them as they are
similar to the installation information.

1 files changed, 45 insertions, 11 deletions

diff --git a/Tests/RunCMake/target_sources/FileSetImport.cmake b/Tests/RunCMake/target_sources/FileSetImport.cmake
index 7e790c7106..8ef8e7dae8 100644
--- a/Tests/RunCMake/target_sources/FileSetImport.cmake
+++ b/Tests/RunCMake/target_sources/FileSetImport.cmake
@@ -19,20 +19,54 @@ include("${export_build_dir}/install/lib/cmake/export.cmake")
 assert_prop_eq(export::lib1 HEADER_SETS "")
 assert_prop_eq(export::lib1 INTERFACE_HEADER_SETS "HEADERS;b;c;d;dir3;e;f;g")
 assert_prop_eq(export::lib1 HEADER_SET "${CMAKE_CURRENT_SOURCE_DIR}/error.c")
-assert_prop_eq(export::lib1 HEADER_DIRS "${CMAKE_CURRENT_SOURCE_DIR}")
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_DIRS "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}")
+else ()
+  assert_prop_eq(export::lib1 HEADER_DIRS "${CMAKE_CURRENT_SOURCE_DIR}")
+endif ()
 assert_prop_eq(export::lib1 HEADER_SET_b "${CMAKE_CURRENT_SOURCE_DIR}/h2.h")
-assert_prop_eq(export::lib1 HEADER_DIRS_b "${CMAKE_CURRENT_SOURCE_DIR}")
-assert_prop_eq(export::lib1 HEADER_SET_c "$<1:dir/dir.h>")
-assert_prop_eq(export::lib1 HEADER_DIRS_c "$<1:${CMAKE_CURRENT_SOURCE_DIR}/dir>")
-assert_prop_eq(export::lib1 HEADER_SET_d "${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>/empty.h")
-assert_prop_eq(export::lib1 HEADER_DIRS_d "${CMAKE_CURRENT_SOURCE_DIR}")
-assert_prop_eq(export::lib1 HEADER_SET_e "${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>/empty2.h")
-assert_prop_eq(export::lib1 HEADER_DIRS_e "${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>")
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_DIRS_b "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}")
+else ()
+  assert_prop_eq(export::lib1 HEADER_DIRS_b "${CMAKE_CURRENT_SOURCE_DIR}")
+endif ()
+assert_prop_eq(export::lib1 HEADER_SET_c "${CMAKE_CURRENT_SOURCE_DIR}/dir/dir.h")
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_DIRS_c "${CMAKE_CURRENT_SOURCE_DIR}/dir;${CMAKE_CURRENT_SOURCE_DIR}/dir")
+else ()
+  assert_prop_eq(export::lib1 HEADER_DIRS_c "${CMAKE_CURRENT_SOURCE_DIR}/dir")
+endif ()
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_SET_d "$<$<CONFIG:Debug>:${CMAKE_CURRENT_SOURCE_DIR}/debug/empty.h>;$<$<CONFIG:Release>:${CMAKE_CURRENT_SOURCE_DIR}/release/empty.h>")
+  assert_prop_eq(export::lib1 HEADER_DIRS_d "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}")
+else ()
+  assert_prop_eq(export::lib1 HEADER_SET_d "${CMAKE_CURRENT_SOURCE_DIR}/debug/empty.h")
+  assert_prop_eq(export::lib1 HEADER_DIRS_d "${CMAKE_CURRENT_SOURCE_DIR}")
+endif ()
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_SET_e "$<$<CONFIG:Debug>:${CMAKE_CURRENT_SOURCE_DIR}/debug/empty2.h>;$<$<CONFIG:Release>:${CMAKE_CURRENT_SOURCE_DIR}/release/empty2.h>")
+  assert_prop_eq(export::lib1 HEADER_DIRS_e "$<$<CONFIG:Debug>:${CMAKE_CURRENT_SOURCE_DIR}/debug>;$<$<CONFIG:Release>:${CMAKE_CURRENT_SOURCE_DIR}/release>")
+else ()
+  assert_prop_eq(export::lib1 HEADER_SET_e "${CMAKE_CURRENT_SOURCE_DIR}/debug/empty2.h")
+  assert_prop_eq(export::lib1 HEADER_DIRS_e "${CMAKE_CURRENT_SOURCE_DIR}/debug")
+endif ()
 assert_prop_eq(export::lib1 HEADER_SET_f "${CMAKE_CURRENT_SOURCE_DIR}/empty3.h")
-assert_prop_eq(export::lib1 HEADER_DIRS_f "${CMAKE_CURRENT_SOURCE_DIR}")
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_DIRS_f "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}")
+else ()
+  assert_prop_eq(export::lib1 HEADER_DIRS_f "${CMAKE_CURRENT_SOURCE_DIR}")
+endif ()
 assert_prop_eq(export::lib1 HEADER_SET_g "${CMAKE_CURRENT_SOURCE_DIR}/dir1/file1.h;${CMAKE_CURRENT_SOURCE_DIR}/dir2/file2.h")
-assert_prop_eq(export::lib1 HEADER_DIRS_g "${CMAKE_CURRENT_SOURCE_DIR}/dir1;${CMAKE_CURRENT_SOURCE_DIR}/dir2")
-assert_prop_eq(export::lib1 INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR};$<1:${CMAKE_CURRENT_SOURCE_DIR}/dir>;${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>;${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}/dir1;${CMAKE_CURRENT_SOURCE_DIR}/dir2;${CMAKE_CURRENT_SOURCE_DIR}/dir3;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:$<1:${CMAKE_CURRENT_SOURCE_DIR}/dir>>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir1>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir2>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir3>")
+if (_multi_config)
+  assert_prop_eq(export::lib1 HEADER_DIRS_g "${CMAKE_CURRENT_SOURCE_DIR}/dir1;${CMAKE_CURRENT_SOURCE_DIR}/dir1")
+else ()
+  assert_prop_eq(export::lib1 HEADER_DIRS_g "${CMAKE_CURRENT_SOURCE_DIR}/dir1")
+endif ()
+if (_multi_config)
+  assert_prop_eq(export::lib1 INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR};$<1:${CMAKE_CURRENT_SOURCE_DIR}/dir>;${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>;${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}/dir1;${CMAKE_CURRENT_SOURCE_DIR}/dir2;${CMAKE_CURRENT_SOURCE_DIR}/dir3;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:$<$<CONFIG:Debug>:${CMAKE_CURRENT_SOURCE_DIR}/debug>>;$<BUILD_INTERFACE:$<$<CONFIG:Release>:${CMAKE_CURRENT_SOURCE_DIR}/release>>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir1>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir1>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir3>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir3>")
+else ()
+  assert_prop_eq(export::lib1 INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR};$<1:${CMAKE_CURRENT_SOURCE_DIR}/dir>;${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}/$<IF:$<CONFIG:Debug>,debug,release>;${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_SOURCE_DIR}/dir1;${CMAKE_CURRENT_SOURCE_DIR}/dir2;${CMAKE_CURRENT_SOURCE_DIR}/dir3;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/debug>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir1>;$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/dir3>")
+endif ()
 
 assert_prop_eq(install::lib1 HEADER_SETS "")
 assert_prop_eq(install::lib1 INTERFACE_HEADER_SETS "HEADERS;b;c;d;dir3;e;f;g")