--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Orthanc/Resources/CMake/DownloadPackage.cmake	Fri Oct 14 15:39:01 2016 +0200
@@ -0,0 +1,164 @@
+macro(GetUrlFilename TargetVariable Url)
+  string(REGEX REPLACE "^.*/" "" ${TargetVariable} "${Url}")
+endmacro()
+
+
+macro(GetUrlExtension TargetVariable Url)
+  #string(REGEX REPLACE "^.*/[^.]*\\." "" TMP "${Url}")
+  string(REGEX REPLACE "^.*\\." "" TMP "${Url}")
+  string(TOLOWER "${TMP}" "${TargetVariable}")
+endmacro()
+
+
+
+##
+## Setup the patch command-line tool
+##
+
+if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+  set(PATCH_EXECUTABLE ${CMAKE_SOURCE_DIR}/Resources/ThirdParty/patch/patch.exe)
+else ()
+  find_program(PATCH_EXECUTABLE patch)
+  if (${PATCH_EXECUTABLE} MATCHES "PATCH_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the 'patch' standard command-line tool")
+  endif()
+endif()
+
+
+
+##
+## Check the existence of the required decompression tools
+##
+
+if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+  find_program(ZIP_EXECUTABLE 7z 
+    PATHS 
+    "$ENV{ProgramFiles}/7-Zip"
+    "$ENV{ProgramW6432}/7-Zip"
+    )
+
+  if (${ZIP_EXECUTABLE} MATCHES "ZIP_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the '7-zip' software (http://www.7-zip.org/)")
+  endif()
+
+else()
+  find_program(UNZIP_EXECUTABLE unzip)
+  if (${UNZIP_EXECUTABLE} MATCHES "UNZIP_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the 'unzip' package")
+  endif()
+
+  find_program(TAR_EXECUTABLE tar)
+  if (${TAR_EXECUTABLE} MATCHES "TAR_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the 'tar' package")
+  endif()
+endif()
+
+
+macro(DownloadPackage MD5 Url TargetDirectory)
+  if (NOT IS_DIRECTORY "${TargetDirectory}")
+    GetUrlFilename(TMP_FILENAME "${Url}")
+
+    set(TMP_PATH "${CMAKE_SOURCE_DIR}/ThirdPartyDownloads/${TMP_FILENAME}")
+    if (NOT EXISTS "${TMP_PATH}")
+      message("Downloading ${Url}")
+
+      # This fixes issue 6: "I think cmake shouldn't download the
+      # packages which are not in the system, it should stop and let
+      # user know."
+      # https://code.google.com/p/orthanc/issues/detail?id=6
+      if (NOT STATIC_BUILD AND NOT ALLOW_DOWNLOADS)
+	message(FATAL_ERROR "CMake is not allowed to download from Internet. Please set the ALLOW_DOWNLOADS option to ON")
+      endif()
+
+      file(DOWNLOAD "${Url}" "${TMP_PATH}" SHOW_PROGRESS EXPECTED_MD5 "${MD5}")
+    else()
+      message("Using local copy of ${Url}")
+    endif()
+
+    GetUrlExtension(TMP_EXTENSION "${Url}")
+    #message(${TMP_EXTENSION})
+    message("Uncompressing ${TMP_FILENAME}")
+
+    if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+      # How to silently extract files using 7-zip
+      # http://superuser.com/questions/331148/7zip-command-line-extract-silently-quietly
+
+      if (("${TMP_EXTENSION}" STREQUAL "gz") OR 
+          ("${TMP_EXTENSION}" STREQUAL "tgz") OR
+          ("${TMP_EXTENSION}" STREQUAL "xz"))
+        execute_process(
+          COMMAND ${ZIP_EXECUTABLE} e -y ${TMP_PATH}
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+
+        if (Failure)
+          message(FATAL_ERROR "Error while running the uncompression tool")
+        endif()
+
+        if ("${TMP_EXTENSION}" STREQUAL "tgz")
+          string(REGEX REPLACE ".tgz$" ".tar" TMP_FILENAME2 "${TMP_FILENAME}")
+        elseif ("${TMP_EXTENSION}" STREQUAL "gz")
+          string(REGEX REPLACE ".gz$" "" TMP_FILENAME2 "${TMP_FILENAME}")
+        elseif ("${TMP_EXTENSION}" STREQUAL "xz")
+          string(REGEX REPLACE ".xz" "" TMP_FILENAME2 "${TMP_FILENAME}")
+        endif()
+
+        execute_process(
+          COMMAND ${ZIP_EXECUTABLE} x -y ${TMP_FILENAME2}
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "zip")
+        execute_process(
+          COMMAND ${ZIP_EXECUTABLE} x -y ${TMP_PATH}
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+      else()
+        message(FATAL_ERROR "Support your platform here")
+      endif()
+
+    else()
+      if ("${TMP_EXTENSION}" STREQUAL "zip")
+        execute_process(
+          COMMAND sh -c "${UNZIP_EXECUTABLE} -q ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+        )
+      elseif (("${TMP_EXTENSION}" STREQUAL "gz") OR ("${TMP_EXTENSION}" STREQUAL "tgz"))
+        #message("tar xvfz ${TMP_PATH}")
+        execute_process(
+          COMMAND sh -c "${TAR_EXECUTABLE} xfz ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "bz2")
+        execute_process(
+          COMMAND sh -c "${TAR_EXECUTABLE} xfj ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "xz")
+        execute_process(
+          COMMAND sh -c "${TAR_EXECUTABLE} xf ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          )
+      else()
+        message(FATAL_ERROR "Unknown package format.")
+      endif()
+    endif()
+   
+    if (Failure)
+      message(FATAL_ERROR "Error while running the uncompression tool")
+    endif()
+
+    if (NOT IS_DIRECTORY "${TargetDirectory}")
+      message(FATAL_ERROR "The package was not uncompressed at the proper location. Check the CMake instructions.")
+    endif()
+  endif()
+endmacro()