CPackDeb: ctest tests for compression scheme leak

Test that changing compression of debian package
content does not affect DEBIAN/ files which must
be gzipped

Tests/CMakeLists.txt

@@ -1035,7 +1035,8 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
                                      "components-description2"
                                      "components-shlibdeps1"
                                      "components-depend1"
-                                     "components-depend2")
+                                     "components-depend2"
+                                     "compression")
       set(CPackGen "DEB")
       set(CPackRun_CPackGen "-DCPackGen=${CPackGen}")
 

Tests/CPackComponentsDEB/MyLibCPackConfig-compression.cmake.in

@@ -0,0 +1,11 @@
+#
+# Test that setting the compression produces valid
+# packages (compression does not leak to the DEBIAN/ files that use gzip)
+#
+
+if(CPACK_GENERATOR MATCHES "DEB")
+   set(CPACK_DEB_COMPONENT_INSTALL "OFF")
+endif()
+
+set(CPACK_COMPONENTS_ALL_GROUPS_IN_ONE_PACKAGE)
+set(CPACK_DEBIAN_COMPRESSION_TYPE xz)

Tests/CPackComponentsDEB/RunCPackVerifyResult-compression.cmake

@@ -0,0 +1,54 @@
+if(NOT CPackComponentsDEB_SOURCE_DIR)
+  message(FATAL_ERROR "CPackComponentsDEB_SOURCE_DIR not set")
+endif()
+
+include(${CPackComponentsDEB_SOURCE_DIR}/RunCPackVerifyResult.cmake)
+
+# TODO: currently debian doens't produce lower cased names
+set(expected_file_mask "${CPackComponentsDEB_BINARY_DIR}/MyLib-*.deb")
+set(expected_count 1)
+
+set(actual_output)
+run_cpack(actual_output
+          CPack_output
+          CPack_error
+          EXPECTED_FILE_MASK "${expected_file_mask}"
+          CONFIG_ARGS "${config_args}"
+          CONFIG_VERBOSE "${config_verbose}")
+
+if(NOT actual_output)
+  message(STATUS "expected_count='${expected_count}'")
+  message(STATUS "expected_file_mask='${expected_file_mask}'")
+  message(STATUS "actual_output_files='${actual_output}'")
+  message(FATAL_ERROR "error: expected_files do not exist: CPackComponentsDEB test fails. (CPack_output=${CPack_output}, CPack_error=${CPack_error}")
+endif()
+
+list(LENGTH actual_output actual_count)
+if(NOT actual_count EQUAL expected_count)
+  message(STATUS "actual_count='${actual_count}'")
+  message(FATAL_ERROR "error: expected_count=${expected_count} does not match actual_count=${actual_count}: CPackComponents test fails. (CPack_output=${CPack_output}, CPack_error=${CPack_error})")
+endif()
+
+
+# dpkg-deb checks
+find_program(DPKGDEB_EXECUTABLE dpkg-deb)
+if(DPKGDEB_EXECUTABLE)
+  set(dpkgdeb_output_errors_all "")
+  foreach(_f IN LISTS actual_output)
+    run_dpkgdeb(dpkg_output
+                FILENAME "${_f}"
+                )
+
+    # message(FATAL_ERROR "output = '${dpkg_output}'")
+    if("${dpkg_output}" STREQUAL "")
+      set(dpkgdeb_output_errors_all "${dpkgdeb_output_errors_all}"
+                                    "dpkg-deb: ${_f}: empty content returned by dpkg-deb")
+    endif()
+  endforeach()
+
+  if(NOT "${dpkgdeb_output_errors_all}" STREQUAL "")
+    message(FATAL_ERROR "dpkg-deb checks failed:\n${dpkgdeb_output_errors_all}")
+  endif()
+else()
+  message("dpkg-deb executable not found - skipping dpkg-deb test")
+endif()

Tests/CPackComponentsDEB/RunCPackVerifyResult.cmake

@@ -86,7 +86,7 @@ function(run_lintian lintian_output)
       message(FATAL_ERROR "error: run_lintian needs FILENAME to be set")
     endif()
 
-    # run lintian
+    # run dpkg-deb
     execute_process(COMMAND ${LINTIAN_EXECUTABLE} ${run_lintian_deb_FILENAME}
       WORKING_DIRECTORY "${CPACK_TEMPORARY_DIRECTORY}"
       OUTPUT_VARIABLE LINTIAN_OUTPUT
@@ -167,6 +167,10 @@ function(run_dpkgdeb dpkg_deb_output)
       ERROR_VARIABLE DPKGDEB_ERROR
       OUTPUT_STRIP_TRAILING_WHITESPACE )
 
+    if(NOT ("${DPKGDEB_RESULT}" EQUAL "0"))
+      message(FATAL_ERROR "Error '${DPKGDEB_RESULT}' returned by dpkg-deb: '${DPKGDEB_ERROR}'")
+    endif()
+
     set(${dpkg_deb_output} "${DPKGDEB_OUTPUT}" PARENT_SCOPE)
   else()
     message(FATAL_ERROR "run_dpkgdeb called without dpkg-deb executable being present")