find_*: Add support for REQUIRED keyword

In the same spirit as the REQUIRED keyword on find_package, this will
stop cmake execution with an error on a failed find_program, find_file,
find_path or find_library.

20 files changed, 78 insertions, 0 deletions

diff --git a/Tests/RunCMake/find_file/Required-result.txt b/Tests/RunCMake/find_file/Required-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/find_file/Required-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/find_file/Required-stderr.txt b/Tests/RunCMake/find_file/Required-stderr.txt
new file mode 100644
index 0000000..f9c337c
--- /dev/null
+++ b/Tests/RunCMake/find_file/Required-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at Required.cmake:9 \(find_file\):
+  Could not find FILE_doNotExists using the following files: doNotExists.h
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/find_file/Required-stdout.txt b/Tests/RunCMake/find_file/Required-stdout.txt
new file mode 100644
index 0000000..87a8e86
--- /dev/null
+++ b/Tests/RunCMake/find_file/Required-stdout.txt
@@ -0,0 +1 @@
+-- FILE_exists='[^']*/Tests/RunCMake/find_file/include/PrefixInPATH.h'
diff --git a/Tests/RunCMake/find_file/Required.cmake b/Tests/RunCMake/find_file/Required.cmake
new file mode 100644
index 0000000..9cf0927
--- /dev/null
+++ b/Tests/RunCMake/find_file/Required.cmake
@@ -0,0 +1,12 @@
+find_file(FILE_exists
+  NAMES PrefixInPATH.h
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/include
+  NO_DEFAULT_PATH
+  REQUIRED
+  )
+message(STATUS "FILE_exists='${FILE_exists}'")
+
+find_file(FILE_doNotExists
+  NAMES doNotExists.h
+  REQUIRED
+  )
diff --git a/Tests/RunCMake/find_file/RunCMakeTest.cmake b/Tests/RunCMake/find_file/RunCMakeTest.cmake
index 9f56a57..93dfb78 100644
--- a/Tests/RunCMake/find_file/RunCMakeTest.cmake
+++ b/Tests/RunCMake/find_file/RunCMakeTest.cmake
@@ -3,3 +3,4 @@ include(RunCMake)
 run_cmake(FromPATHEnv)
 run_cmake(FromPrefixPath)
 run_cmake(PrefixInPATH)
+run_cmake(Required)
diff --git a/Tests/RunCMake/find_library/Required-result.txt b/Tests/RunCMake/find_library/Required-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/find_library/Required-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/find_library/Required-stderr.txt b/Tests/RunCMake/find_library/Required-stderr.txt
new file mode 100644
index 0000000..545d164
--- /dev/null
+++ b/Tests/RunCMake/find_library/Required-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at Required.cmake:11 \(find_library\):
+  Could not find LIB_doNotExists using the following names: doNotExists
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/find_library/Required-stdout.txt b/Tests/RunCMake/find_library/Required-stdout.txt
new file mode 100644
index 0000000..b88ab79
--- /dev/null
+++ b/Tests/RunCMake/find_library/Required-stdout.txt
@@ -0,0 +1 @@
+-- LIB_exists='[^']*/Tests/RunCMake/find_library/lib/libPrefixInPATH.a'
diff --git a/Tests/RunCMake/find_library/Required.cmake b/Tests/RunCMake/find_library/Required.cmake
new file mode 100644
index 0000000..78c9f87
--- /dev/null
+++ b/Tests/RunCMake/find_library/Required.cmake
@@ -0,0 +1,14 @@
+list(APPEND CMAKE_FIND_LIBRARY_PREFIXES lib)
+list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES .a)
+find_library(LIB_exists
+  NAMES PrefixInPATH
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/lib
+  NO_DEFAULT_PATH
+  REQUIRED
+  )
+message(STATUS "LIB_exists='${LIB_exists}'")
+
+find_library(LIB_doNotExists
+  NAMES doNotExists
+  REQUIRED
+  )
diff --git a/Tests/RunCMake/find_library/RunCMakeTest.cmake b/Tests/RunCMake/find_library/RunCMakeTest.cmake
index 643a5b9..b6aadce 100644
--- a/Tests/RunCMake/find_library/RunCMakeTest.cmake
+++ b/Tests/RunCMake/find_library/RunCMakeTest.cmake
@@ -7,3 +7,4 @@ if(CMAKE_HOST_UNIX)
   run_cmake(LibArchLink)
 endif()
 run_cmake(PrefixInPATH)
+run_cmake(Required)
diff --git a/Tests/RunCMake/find_path/Required-result.txt b/Tests/RunCMake/find_path/Required-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/find_path/Required-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/find_path/Required-stderr.txt b/Tests/RunCMake/find_path/Required-stderr.txt
new file mode 100644
index 0000000..db65c2f
--- /dev/null
+++ b/Tests/RunCMake/find_path/Required-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at Required.cmake:9 \(find_path\):
+  Could not find PATH_doNotExists using the following files: doNotExists.h
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/find_path/Required-stdout.txt b/Tests/RunCMake/find_path/Required-stdout.txt
new file mode 100644
index 0000000..225fcab
--- /dev/null
+++ b/Tests/RunCMake/find_path/Required-stdout.txt
@@ -0,0 +1 @@
+-- PATH_exists='[^']*/Tests/RunCMake/find_path/include'
diff --git a/Tests/RunCMake/find_path/Required.cmake b/Tests/RunCMake/find_path/Required.cmake
new file mode 100644
index 0000000..172dc11
--- /dev/null
+++ b/Tests/RunCMake/find_path/Required.cmake
@@ -0,0 +1,12 @@
+find_path(PATH_exists
+  NAMES PrefixInPATH.h
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/include
+  NO_DEFAULT_PATH
+  REQUIRED
+  )
+message(STATUS "PATH_exists='${PATH_exists}'")
+
+find_path(PATH_doNotExists
+  NAMES doNotExists.h
+  REQUIRED
+  )
diff --git a/Tests/RunCMake/find_path/RunCMakeTest.cmake b/Tests/RunCMake/find_path/RunCMakeTest.cmake
index ed55f51..5c919bb 100644
--- a/Tests/RunCMake/find_path/RunCMakeTest.cmake
+++ b/Tests/RunCMake/find_path/RunCMakeTest.cmake
@@ -3,6 +3,7 @@ include(RunCMake)
 run_cmake(EmptyOldStyle)
 run_cmake(FromPATHEnv)
 run_cmake(PrefixInPATH)
+run_cmake(Required)
 
 if(APPLE)
   run_cmake(FrameworksWithSubdirs)
diff --git a/Tests/RunCMake/find_program/Required-result.txt b/Tests/RunCMake/find_program/Required-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/find_program/Required-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/find_program/Required-stderr.txt b/Tests/RunCMake/find_program/Required-stderr.txt
new file mode 100644
index 0000000..214a8d4
--- /dev/null
+++ b/Tests/RunCMake/find_program/Required-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at Required.cmake:9 \(find_program\):
+  Could not find PROG_AandB using the following names: testAandB
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/find_program/Required-stdout.txt b/Tests/RunCMake/find_program/Required-stdout.txt
new file mode 100644
index 0000000..3c8f1b5
--- /dev/null
+++ b/Tests/RunCMake/find_program/Required-stdout.txt
@@ -0,0 +1 @@
+-- PROG_A='[^']*/Tests/RunCMake/find_program/A/testA'
diff --git a/Tests/RunCMake/find_program/Required.cmake b/Tests/RunCMake/find_program/Required.cmake
new file mode 100644
index 0000000..a75aa53
--- /dev/null
+++ b/Tests/RunCMake/find_program/Required.cmake
@@ -0,0 +1,12 @@
+find_program(PROG_A
+  NAMES testA
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/A
+  NO_DEFAULT_PATH
+  REQUIRED
+  )
+message(STATUS "PROG_A='${PROG_A}'")
+
+find_program(PROG_AandB
+  NAMES testAandB
+  REQUIRED
+  )
diff --git a/Tests/RunCMake/find_program/RunCMakeTest.cmake b/Tests/RunCMake/find_program/RunCMakeTest.cmake
index 6903f05..0ff9a97 100644
--- a/Tests/RunCMake/find_program/RunCMakeTest.cmake
+++ b/Tests/RunCMake/find_program/RunCMakeTest.cmake
@@ -4,6 +4,7 @@ run_cmake(EnvAndHints)
 run_cmake(DirsPerName)
 run_cmake(NamesPerDir)
 run_cmake(RelAndAbsPath)
+run_cmake(Required)
 
 if(CMAKE_SYSTEM_NAME MATCHES "^(Windows|CYGWIN)$")
   run_cmake(WindowsCom)