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# - Find Maven binary
# Find the Maven executable
#
# MVN_BIN - Maven executable
# MVN_ATTRIBUTES_DEFAULT - These should always be used as attributes to MVN_BIN
# (in addition to others)
# MVN_VERSION - Maven version (first line of output of "${MVN_BIN} --version")
# MAVEN_FOUND - TRUE if the Maven binary was found.
If (APPLE)
# HACK Workaround to prevent maven beeing used on Mac,
# because CMake fails to replace the version-tags
# in the generated pom files.
Set(MAVEN_FOUND FALSE)
Else (APPLE)
Include(FindPackageHandleStandardArgs)
If (MVN_BIN)
# Already in cache, be silent
Set(mvn_FIND_QUIETLY TRUE)
EndIf (MVN_BIN)
Find_Program(MVN_BIN NAMES mvn DOC "Maven command line executable")
EndIf (APPLE)
if (MVN_BIN)
# Try to fetch the Maven version
Execute_Process(COMMAND "${MVN_BIN}" "--version"
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
RESULT_VARIABLE MVN_RET
OUTPUT_VARIABLE MVN_VERSION
ERROR_QUIET)
If (NOT ${MVN_RET} EQUAL 0)
Set(MVN_BIN)
Set(MVN_VERSION)
EndIf (NOT ${MVN_RET} EQUAL 0)
If (MVN_VERSION)
# Strip away everything but the first line
String(REGEX REPLACE "\n.*" "" MVN_VERSION "${MVN_VERSION}")
If (NOT Maven_FIND_QUIETLY)
Message(STATUS "Maven version: ${MVN_VERSION}")
EndIf (NOT Maven_FIND_QUIETLY)
# Run in non-interactive mode
Set(MVN_ATTRIBUTES_DEFAULT "--batch-mode" "-DskipTests")
If (NOT CMAKE_VERBOSE_MAKEFILE)
# Quiet output - only show errors
set(MVN_ATTRIBUTES_DEFAULT ${MVN_ATTRIBUTES_DEFAULT} "--quiet")
EndIf (NOT CMAKE_VERBOSE_MAKEFILE)
EndIf (MVN_VERSION)
EndIf (MVN_BIN)
# Handle the QUIETLY and REQUIRED arguments and set MAVEN_FOUND to TRUE
# if MVN_BIN is valid
Find_Package_Handle_Standard_Args(Maven DEFAULT_MSG MVN_BIN MVN_VERSION MVN_ATTRIBUTES_DEFAULT)
# Show these variables only in the advanced view in the GUI, and make them global
MARK_AS_ADVANCED(
MVN_BIN
MVN_VERSION
MVN_ATTRIBUTES_DEFAULT
MAVEN_FOUND
)
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