GitHub Actions: Add libzip and tests

- Update Sandbox policy
- Compile libzip wrapper functions as part of libzip in CMake

PiperOrigin-RevId: 454837665
Change-Id: Ife6cc99296873e030b9613959eff88d4b0746a5e

.github/workflows/ubuntu-cmake-contrib.yml

@@ -19,6 +19,7 @@ jobs:
           - libraw
           - libtiff
           - libxls
+          - libzip
           - lodepng
           - pffft
         ignore-errors: [true]

contrib/libzip/CMakeLists.txt

@@ -12,10 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.13)
+cmake_minimum_required(VERSION 3.13..2.22)
 
 project(sapi_zip CXX)
 include(CTest)
+include(GoogleTest)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
@@ -35,19 +36,14 @@ set(BUILD_DOC OFF CACHE BOOL "" FORCE)
 set(LIBZIP_DO_INSTALL OFF CACHE BOOL "" FORCE)
 FetchContent_Declare(libzip
   GIT_REPOSITORY https://github.com/nih-at/libzip/
-  GIT_TAG        34b13ca4e887a5aba050015e3a179069643f4e76
+  GIT_TAG        e076a6fd97663025785a64cc8160aa633220be61 # 2022-06-08
 )
 FetchContent_MakeAvailable(libzip)
 
-include_directories("${libzip_BINARY_DIR}")
-
 add_subdirectory(wrapper)
 
-add_sapi_library(
-  sapi_zip
-
-  FUNCTIONS
-    zip_open_from_source
+add_sapi_library(sapi_zip
+  FUNCTIONS zip_open_from_source
             zip_close
 
             zip_get_name
@@ -77,19 +73,23 @@ add_sapi_library(
             zip_delete
 
             zip_strerror
-  INPUTS
-    "${libzip_BINARY_DIR}/zipconf.h"
+  INPUTS "${libzip_BINARY_DIR}/zipconf.h"
          "${libzip_SOURCE_DIR}/lib/zip.h"
-    "wrapper/wrapper_zip.h"
+         wrapper/wrapper_zip.h
 
-  LIBRARY wrapper_zip
+  LIBRARY libzip::zip
   LIBRARY_NAME Zip
   NAMESPACE ""
 )
 add_library(sapi_contrib::libzip ALIAS sapi_zip)
-target_include_directories(sapi_zip INTERFACE
+target_include_directories(sapi_zip PUBLIC
   "${PROJECT_BINARY_DIR}"
-  "${SAPI_SOURCE_DIR}"
+  "${libzip_BINARY_DIR}"
+)
+target_sources(sapi_zip PUBLIC
+  sandboxed.h
+  utils/utils_zip.cc
+  utils/utils_zip.h
 )
 
 if(SAPI_BUILD_EXAMPLES)

contrib/libzip/example/CMakeLists.txt

@@ -14,11 +14,9 @@
 
 add_executable(sapi_minizip
   main.cc
-  ../utils/utils_zip.cc
 )
-
-target_link_libraries(sapi_minizip
-  PRIVATE sapi_contrib::libzip
+target_link_libraries(sapi_minizip PRIVATE
+  sapi_contrib::libzip
   sapi::logging
   sapi::sapi
   absl::flags_parse

contrib/libzip/sandboxed.h

@@ -20,9 +20,9 @@
 
 #include <memory>
 
-// Note: This header is required because of the bug in generator. The generator
-// for some reason doesn't catch the types defined by zip (for example
-// zip_uint32_t).
+// Note: This header is required because to work around an issue with the
+//       libclang based header generator, which doesn't catch the types
+//       defined by zip (for example zip_uint32_t).
 #include <zipconf.h>  // NOLINT(build/include_order)
 
 #include "sapi_zip.sapi.h"  // NOLINT(build/include)
@@ -36,6 +36,7 @@ class ZipSapiSandbox : public ZipSandbox {
         .AllowRead()
         .AllowWrite()
         .AllowSystemMalloc()
+        .AllowGetPIDs()
         .AllowExit()
         .AllowSafeFcntl()
         .AllowSyscalls({

contrib/libzip/test/CMakeLists.txt

@@ -12,22 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-include(GoogleTest)
-
-add_executable(
-  sapi_zip_test
-
+add_executable(sapi_zip_test
   test_zip.cc
-  ../utils/utils_zip.cc
 )
-
-
-target_link_libraries(
-  sapi_zip_test PRIVATE
-
-  sapi_zip
+target_link_libraries(sapi_zip_test PRIVATE
+  sapi_contrib::libzip
   sapi::temp_file
   sapi::test_main
 )
 
-gtest_discover_tests(sapi_zip_test PROPERTIES ENVIRONMENT "TEST_FILES_DIR=${PROJECT_SOURCE_DIR}/files")
+gtest_discover_tests(sapi_zip_test PROPERTIES
+  ENVIRONMENT "TEST_FILES_DIR=${PROJECT_SOURCE_DIR}/files"
+)

contrib/libzip/wrapper/CMakeLists.txt

@@ -12,15 +12,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-add_library(wrapper_zip STATIC
+# Directly compile the wrapper sources as part of the libzip archive
+target_sources(zip PRIVATE
   wrapper_zip.cc
+  wrapper_zip.h
 )
-target_link_libraries(wrapper_zip PUBLIC
-  libzip::zip
-
+target_link_libraries(zip PRIVATE
+  absl::cleanup
   sapi::sapi
 )
-target_include_directories(wrapper_zip PUBLIC
-  "${SAPI_SOURCE_DIR}"
-  "${libzip_SOURCE_DIR}/lib/"
-)

contrib/libzip/wrapper/wrapper_zip.h

@@ -16,6 +16,7 @@
 #define CONTRIB_LIBZIP_WRAPPER_WRAPPER_ZIP_H_
 
 #include <zip.h>
+#include <zipconf.h>
 
 extern "C" {