CPack/DEB: Add option to select archive type

Add a `CPACK_DEBIAN_ARCHIVE_TYPE` option that can be used to select an
archive type that supports long file names.

Closes: #14332

7 files changed, 59 insertions, 0 deletions

diff --git a/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-ExpectedFiles.cmake b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-ExpectedFiles.cmake
new file mode 100644
index 0000000..dd72cf7
--- /dev/null
+++ b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-ExpectedFiles.cmake
@@ -0,0 +1,5 @@
+set(whitespaces_ "[\t\n\r ]*")
+
+set(EXPECTED_FILES_COUNT "1")
+set(EXPECTED_FILE_1 "long_filenames_0.1.1-1_*.deb")
+set(EXPECTED_FILE_CONTENT_1 "^.*/usr/${whitespaces_}.*/usr/foo/${whitespaces_}.*/usr/foo/llllllllll_oooooooooo_nnnnnnnnnn_gggggggggg_ffffffffff_iiiiiiiiii_llllllllll_eeeeeeeeee_nnnnnnnnnn_aaaaaaaaaa_mmmmmmmmmm_eeeeeeeeee.txt$")
diff --git a/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-Prerequirements.cmake b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-Prerequirements.cmake
new file mode 100644
index 0000000..0c1d77e
--- /dev/null
+++ b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-Prerequirements.cmake
@@ -0,0 +1,7 @@
+function(get_test_prerequirements found_var)
+  find_program(FAKEROOT_EXECUTABLE NAMES fakeroot)
+
+  if(FAKEROOT_EXECUTABLE)
+    set(${found_var} true PARENT_SCOPE)
+  endif()
+endfunction()
diff --git a/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-VerifyResult.cmake b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-VerifyResult.cmake
new file mode 100644
index 0000000..0452343
--- /dev/null
+++ b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-VerifyResult.cmake
@@ -0,0 +1,26 @@
+# create structure required by non root dpkg install
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/root_dir")
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/root_dir/admindir")
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/root_dir/admindir/updates")
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/root_dir/admindir/info")
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/root_dir/admindir/available" "")
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/root_dir/admindir/status" "")
+
+# some programs used by fakeroot require sbin in path so we should not
+# leave this to chance (programs: ldconfig and start-stop-daemon)
+set(ENV{PATH} "$ENV{PATH}:/usr/local/sbin:/usr/sbin:/sbin")
+
+execute_process(COMMAND ${FAKEROOT_EXECUTABLE} ${DPKG_EXECUTABLE}
+      -i --force-not-root --root=${CMAKE_CURRENT_BINARY_DIR}/root_dir
+      --admindir=${CMAKE_CURRENT_BINARY_DIR}/root_dir/admindir
+      --log=${CMAKE_CURRENT_BINARY_DIR}/root_dir/dpkg.log
+      ${FOUND_FILE_1}
+    RESULT_VARIABLE install_result_
+    ERROR_VARIABLE install_error_
+    OUTPUT_QUIET
+  )
+
+if(install_result_)
+  message(FATAL_ERROR "LONG_FILENAMES package error -  result:"
+    " '${install_result_}'; text: '${install_error_}'")
+endif()
diff --git a/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-specifics.cmake b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-specifics.cmake
new file mode 100644
index 0000000..39a6be4
--- /dev/null
+++ b/Tests/RunCMake/CPack/DEB/LONG_FILENAMES-specifics.cmake
@@ -0,0 +1,3 @@
+set(CPACK_PACKAGE_CONTACT "someone")
+set(CPACK_DEBIAN_FILE_NAME "DEB-DEFAULT")
+set(CPACK_DEBIAN_ARCHIVE_TYPE "gnutar")
diff --git a/Tests/RunCMake/CPack/DEB/Prerequirements.cmake b/Tests/RunCMake/CPack/DEB/Prerequirements.cmake
index 197b99d..cb9a277 100644
--- a/Tests/RunCMake/CPack/DEB/Prerequirements.cmake
+++ b/Tests/RunCMake/CPack/DEB/Prerequirements.cmake
@@ -5,4 +5,11 @@ function(get_test_prerequirements found_var config_file)
     file(WRITE "${config_file}" "set(DPKG_EXECUTABLE \"${DPKG_EXECUTABLE}\")")
     set(${found_var} true PARENT_SCOPE)
   endif()
+
+  # optional tool for some tests
+  find_program(FAKEROOT_EXECUTABLE fakeroot)
+  if(FAKEROOT_EXECUTABLE)
+    file(APPEND "${config_file}"
+      "\nset(FAKEROOT_EXECUTABLE \"${FAKEROOT_EXECUTABLE}\")")
+  endif()
 endfunction()
diff --git a/Tests/RunCMake/CPack/LONG_FILENAMES.cmake b/Tests/RunCMake/CPack/LONG_FILENAMES.cmake
new file mode 100644
index 0000000..3242aef
--- /dev/null
+++ b/Tests/RunCMake/CPack/LONG_FILENAMES.cmake
@@ -0,0 +1,10 @@
+set(LONG_FILENAME
+  "${CMAKE_CURRENT_BINARY_DIR}/llllllllll_oooooooooo_nnnnnnnnnn_gggggggggg_ffffffffff_iiiiiiiiii_llllllllll_eeeeeeeeee_nnnnnnnnnn_aaaaaaaaaa_mmmmmmmmmm_eeeeeeeeee.txt")
+
+file(WRITE
+  "${LONG_FILENAME}"
+  "long_filename_test")
+
+install(FILES ${LONG_FILENAME} DESTINATION foo)
+
+set(CPACK_PACKAGE_NAME "long_filenames")
diff --git a/Tests/RunCMake/CPack/RunCMakeTest.cmake b/Tests/RunCMake/CPack/RunCMakeTest.cmake
index 44586d7..a3029cf 100644
--- a/Tests/RunCMake/CPack/RunCMakeTest.cmake
+++ b/Tests/RunCMake/CPack/RunCMakeTest.cmake
@@ -17,3 +17,4 @@ run_cpack_test(INSTALL_SCRIPTS "RPM" false)
 run_cpack_test(DEB_GENERATE_SHLIBS "DEB" true)
 run_cpack_test(DEB_GENERATE_SHLIBS_LDCONFIG "DEB" true)
 run_cpack_test(DEBUGINFO "RPM" true)
+run_cpack_test(LONG_FILENAMES "DEB" false)