Merge topic 'print-sources'

d8dcfa7776 Tests: Add tests for CMakePrintHelpers
b7ddfcfe08 cmake_print_properties(): Update grammar docs
e52b9e1270 PrintHelpers: Document argument order restriction
d87ed4d88f PrintHelpers: Fix indentation
5fa70e1738 PrintHelpers: Rewrite a few more error messages
2579503f45 PrintHelpers: Fix target SOURCES property

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !7331

Modules/CMakePrintHelpers.cmake

@@ -10,16 +10,19 @@ e.g. for debugging.
 
 ::
 
-  cmake_print_properties([TARGETS target1 ..  targetN]
-                        [SOURCES source1 .. sourceN]
-                        [DIRECTORIES dir1 .. dirN]
-                        [TESTS test1 .. testN]
-                        [CACHE_ENTRIES entry1 .. entryN]
-                        PROPERTIES prop1 .. propN )
+  cmake_print_properties(<TARGETS       [<target1> ...] |
+                          SOURCES       [<source1> ...] |
+                          DIRECTORIES   [<dir1> ...]    |
+                          TESTS         [<test1> ...]   |
+                          CACHE_ENTRIES [<entry1> ...]  >
+                         PROPERTIES [<prop1> ...]         )
 
 This function prints the values of the properties of the given targets,
 source files, directories, tests or cache entries.  Exactly one of the
-scope keywords must be used.  Example::
+scope keywords must be used.  The scope keyword and its arguments must
+come before the ``PROPERTIES`` keyword, in the arguments list.
+
+Example::
 
   cmake_print_properties(TARGETS foo bar PROPERTIES
                          LOCATION INTERFACE_INCLUDE_DIRECTORIES)
@@ -56,17 +59,34 @@ endfunction()
 function(cmake_print_properties)
   set(options )
   set(oneValueArgs )
-  set(multiValueArgs TARGETS SOURCES TESTS DIRECTORIES CACHE_ENTRIES PROPERTIES )
+  set(cpp_multiValueArgs PROPERTIES )
+  set(cppmode_multiValueArgs TARGETS SOURCES TESTS DIRECTORIES CACHE_ENTRIES )
 
-  cmake_parse_arguments(CPP "${options}" "${oneValueArgs}" "${multiValueArgs}"  ${ARGN})
+  string(JOIN " " _mode_names ${cppmode_multiValueArgs})
+  set(_missing_mode_message
+    "Mode keyword missing in cmake_print_properties() call, there must be exactly one of ${_mode_names}")
 
-  if(CPP_UNPARSED_ARGUMENTS)
-    message(FATAL_ERROR "Unknown keywords given to cmake_print_properties(): \"${CPP_UNPARSED_ARGUMENTS}\"")
+  cmake_parse_arguments(
+    CPP "${options}" "${oneValueArgs}" "${cpp_multiValueArgs}" ${ARGN})
+
+  if(NOT CPP_PROPERTIES)
+    message(FATAL_ERROR
+      "Required argument PROPERTIES missing in cmake_print_properties() call")
     return()
   endif()
 
-  if(NOT CPP_PROPERTIES)
-    message(FATAL_ERROR "Required argument PROPERTIES missing in cmake_print_properties() call")
+  if(NOT CPP_UNPARSED_ARGUMENTS)
+    message(FATAL_ERROR "${_missing_mode_message}")
+    return()
+  endif()
+
+  cmake_parse_arguments(
+    CPPMODE "${options}" "${oneValueArgs}" "${cppmode_multiValueArgs}"
+    ${CPP_UNPARSED_ARGUMENTS})
+
+  if(CPPMODE_UNPARSED_ARGUMENTS)
+    message(FATAL_ERROR
+      "Unknown keywords given to cmake_print_properties(): \"${CPPMODE_UNPARSED_ARGUMENTS}\"")
     return()
   endif()
 
@@ -74,32 +94,32 @@ function(cmake_print_properties)
   set(items)
   set(keyword)
 
-  if(CPP_TARGETS)
-    set(items ${CPP_TARGETS})
+  if(CPPMODE_TARGETS)
+    set(items ${CPPMODE_TARGETS})
     set(mode ${mode} TARGETS)
     set(keyword TARGET)
   endif()
 
-  if(CPP_SOURCES)
-    set(items ${CPP_SOURCES})
+  if(CPPMODE_SOURCES)
+    set(items ${CPPMODE_SOURCES})
     set(mode ${mode} SOURCES)
     set(keyword SOURCE)
   endif()
 
-  if(CPP_TESTS)
-    set(items ${CPP_TESTS})
+  if(CPPMODE_TESTS)
+    set(items ${CPPMODE_TESTS})
     set(mode ${mode} TESTS)
     set(keyword TEST)
   endif()
 
-  if(CPP_DIRECTORIES)
-    set(items ${CPP_DIRECTORIES})
+  if(CPPMODE_DIRECTORIES)
+    set(items ${CPPMODE_DIRECTORIES})
     set(mode ${mode} DIRECTORIES)
     set(keyword DIRECTORY)
   endif()
 
-  if(CPP_CACHE_ENTRIES)
-    set(items ${CPP_CACHE_ENTRIES})
+  if(CPPMODE_CACHE_ENTRIES)
+    set(items ${CPPMODE_CACHE_ENTRIES})
     set(mode ${mode} CACHE_ENTRIES)
     # This is a workaround for the fact that passing `CACHE` as an argument to
     # set() causes a cache variable to be set.
@@ -108,13 +128,14 @@ function(cmake_print_properties)
   endif()
 
   if(NOT mode)
-    message(FATAL_ERROR "Mode keyword missing in cmake_print_properties() call, must be one of TARGETS SOURCES TESTS DIRECTORIES CACHE_ENTRIES PROPERTIES")
+    message(FATAL_ERROR "${_missing_mode_message}")
     return()
   endif()
 
   list(LENGTH mode modeLength)
   if("${modeLength}" GREATER 1)
-    message(FATAL_ERROR "Multiple mode keyword used in cmake_print_properties() call, it must be exactly one of TARGETS SOURCES TESTS DIRECTORIES CACHE_ENTRIES PROPERTIES")
+    message(FATAL_ERROR
+      "Multiple mode keywords used in cmake_print_properties() call, there must be exactly one of ${_mode_names}.")
     return()
   endif()
 
@@ -124,8 +145,8 @@ function(cmake_print_properties)
     set(itemExists TRUE)
     if(keyword STREQUAL "TARGET")
       if(NOT TARGET ${item})
-      set(itemExists FALSE)
-      string(APPEND msg "\n No such TARGET \"${item}\" !\n\n")
+        set(itemExists FALSE)
+        string(APPEND msg "\n No such TARGET \"${item}\" !\n\n")
       endif()
     endif()