CPack/DEB: component version of PACKAGE_CONTROL_EXTRA

Component version of CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
variable.

Modules/CPackDeb.cmake

@@ -272,6 +272,7 @@
 #
 #
 # .. variable:: CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
+#               CPACK_DEBIAN_<COMPONENT>_PACKAGE_CONTROL_EXTRA
 #
 #  This variable allow advanced user to add custom script to the
 #  control.tar.gz.
@@ -582,13 +583,20 @@ function(cpack_deb_prepare_package_vars)
   # - conffiles
   # - postinst
   # - postrm
-  # - prerm"
+  # - prerm
   # Usage:
   # set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
   #    "${CMAKE_CURRENT_SOURCE_DIR/prerm;${CMAKE_CURRENT_SOURCE_DIR}/postrm")
 
   # Are we packaging components ?
   if(CPACK_DEB_PACKAGE_COMPONENT)
+    # override values with per component version if set
+    foreach(VAR_NAME_ "PACKAGE_CONTROL_EXTRA")
+      if(CPACK_DEBIAN_${_local_component_name}_${VAR_NAME_})
+        set(CPACK_DEBIAN_${VAR_NAME_} "${CPACK_DEBIAN_${_local_component_name}_${VAR_NAME_}}")
+      endif()
+    endforeach()
+
     set(CPACK_DEB_PACKAGE_COMPONENT_PART_NAME "-${CPACK_DEB_PACKAGE_COMPONENT}")
     string(TOLOWER "${CPACK_PACKAGE_NAME}${CPACK_DEB_PACKAGE_COMPONENT_PART_NAME}" CPACK_DEBIAN_PACKAGE_NAME)
   else()

Tests/RunCMake/CPack/DEB/DEB_EXTRA-ExpectedFiles.cmake

@@ -0,0 +1,9 @@
+set(whitespaces_ "[\t\n\r ]*")
+
+set(EXPECTED_FILES_COUNT "3")
+set(EXPECTED_FILE_1 "deb_extra-*-foo.deb")
+set(EXPECTED_FILE_CONTENT_1 "^.*/usr/${whitespaces_}.*/usr/foo/${whitespaces_}.*/usr/foo/CMakeLists.txt$")
+set(EXPECTED_FILE_2 "deb_extra-*-bar.deb")
+set(EXPECTED_FILE_CONTENT_2 "^.*/usr/${whitespaces_}.*/usr/bar/${whitespaces_}.*/usr/bar/CMakeLists.txt$")
+set(EXPECTED_FILE_3 "deb_extra-*-bas.deb")
+set(EXPECTED_FILE_CONTENT_3 "^.*/usr/${whitespaces_}.*/usr/bas/${whitespaces_}.*/usr/bas/CMakeLists.txt$")

Tests/RunCMake/CPack/DEB/DEB_EXTRA-VerifyResult.cmake

@@ -0,0 +1,11 @@
+set(foo_preinst "^echo default_preinst$")
+set(foo_prerm "^echo default_prerm$")
+verifyDebControl("${FOUND_FILE_1}" "foo" "preinst;prerm")
+
+set(bar_preinst "^echo bar_preinst$")
+set(bar_prerm "^echo bar_prerm$")
+verifyDebControl("${FOUND_FILE_2}" "bar" "preinst;prerm")
+
+set(bas_preinst "^echo default_preinst$")
+set(bas_prerm "^echo default_prerm$")
+verifyDebControl("${FOUND_FILE_3}" "bas" "preinst;prerm")

Tests/RunCMake/CPack/DEB_EXTRA.cmake

@@ -0,0 +1,20 @@
+install(FILES CMakeLists.txt DESTINATION foo COMPONENT foo)
+install(FILES CMakeLists.txt DESTINATION bar COMPONENT bar)
+install(FILES CMakeLists.txt DESTINATION bas COMPONENT bas)
+
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/preinst "echo default_preinst")
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/prerm "echo default_prerm")
+
+set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
+    "${CMAKE_CURRENT_BINARY_DIR}/preinst;${CMAKE_CURRENT_BINARY_DIR}/prerm")
+
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/bar/preinst "echo bar_preinst")
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/bar/prerm "echo bar_prerm")
+
+set(CPACK_DEBIAN_BAR_PACKAGE_CONTROL_EXTRA
+    "${CMAKE_CURRENT_BINARY_DIR}/bar/preinst;${CMAKE_CURRENT_BINARY_DIR}/bar/prerm")
+
+set(CPACK_PACKAGE_NAME "deb_extra")
+set(CPACK_PACKAGE_CONTACT "someone")
+
+set(CPACK_DEB_COMPONENT_INSTALL ON)

Tests/RunCMake/CPack/RunCMakeTest.cmake

@@ -6,3 +6,4 @@ include("${RunCMake_SOURCE_DIR}/CPackTestHelpers.cmake")
 # args: TEST_NAME "GENERATORS" RUN_CMAKE_BUILD_STEP
 run_cpack_test(MINIMAL "RPM;DEB" false)
 run_cpack_test(PARTIALLY_RELOCATABLE_WARNING "RPM" false)
+run_cpack_test(DEB_EXTRA "DEB" false)