add pk files to cmake, avoid some duplication, and update documentation

CMakeLists.txt

 cmake_minimum_required(VERSION 3.1)
 
-project(olm VERSION 2.2.2 LANGUAGES CXX C)
+project(olm VERSION 2.3.0 LANGUAGES CXX C)
 
 option(OLM_TESTS "Build tests" ON)
 option(OLM_FUZZERS "Build fuzzers" ON)
@@ -31,6 +31,7 @@ add_library(olm
     src/ratchet.cpp
     src/session.cpp
     src/utility.cpp
+    src/pk.cpp
 
     src/ed25519.c
     src/error.c
@@ -77,6 +78,7 @@ install(FILES
     ${CMAKE_SOURCE_DIR}/include/olm/olm.h
     ${CMAKE_SOURCE_DIR}/include/olm/outbound_group_session.h
     ${CMAKE_SOURCE_DIR}/include/olm/inbound_group_session.h
+    ${CMAKE_SOURCE_DIR}/include/olm/pk.h
     DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/olm)
 
 # Export the targets to a script.

README.rst

@@ -58,9 +58,10 @@ To build olm as a static library (which still needs libstdc++ dynamically) run:
 Release process
 ---------------
 
-First: bump version numbers in ``common.mk``, ``javascript/package.json``,
-``OLMKit.podspec``, and ``android/olm-sdk/build.gradle`` (``versionCode``,
-``versionName`` and ``version``).
+First: bump version numbers in ``common.mk``, ``CMakeLists.txt``,
+``javascript/package.json``, ``OLMKit.podspec``, and
+``android/olm-sdk/build.gradle`` (``versionCode``, ``versionName`` and
+``version``).
 
 Also, ensure the changelog is up to date, and that everyting is committed to
 git.

fuzzers/CMakeLists.txt

-add_executable(fuzz_decode_message fuzz_decode_message.cpp)
-target_include_directories(fuzz_decode_message PRIVATE include)
-target_link_libraries(fuzz_decode_message Olm::Olm)
-
-add_executable(fuzz_decrypt fuzz_decrypt.cpp)
-target_include_directories(fuzz_decrypt PRIVATE include)
-target_link_libraries(fuzz_decrypt Olm::Olm)
-
-add_executable(fuzz_group_decrypt fuzz_group_decrypt.cpp)
-target_include_directories(fuzz_group_decrypt PRIVATE include)
-target_link_libraries(fuzz_group_decrypt Olm::Olm)
-
-add_executable(fuzz_unpickle_account fuzz_unpickle_account.cpp)
-target_link_libraries(fuzz_unpickle_account Olm::Olm)
-target_include_directories(fuzz_unpickle_account PRIVATE include)
-
-add_executable(fuzz_unpickle_session fuzz_unpickle_session.cpp)
-target_link_libraries(fuzz_unpickle_session Olm::Olm)
-target_include_directories(fuzz_unpickle_session PRIVATE include)
+foreach(fuzz IN ITEMS
+    fuzz_decode_message
+    fuzz_decrypt
+    fuzz_group_decrypt
+    fuzz_unpickle_account
+    fuzz_unpickle_session
+    )
+add_executable(${fuzz} ${fuzz}.cpp)
+target_include_directories(${fuzz} PRIVATE include)
+target_link_libraries(${fuzz} Olm::Olm)
+endforeach(fuzz)

tests/CMakeLists.txt

 enable_testing()
 
-add_executable(test_base64 test_base64.cpp)
-target_include_directories(test_base64 PRIVATE include)
-target_link_libraries(test_base64 Olm::Olm)
-add_test(Base64 test_base64)
+foreach(test IN ITEMS
+    test_base64
+    test_crypto
+    test_group_session
+    test_list
+    test_megolm
+    test_message
+    test_olm
+    test_olm_decrypt
+    test_olm_sha256
+    test_olm_signature
+    test_olm_using_malloc
+    test_ratchet
+    test_session
+    test_pk
+    )
+add_executable(${test} ${test}.cpp)
+target_include_directories(${test} PRIVATE include)
+target_link_libraries(${test} Olm::Olm)
+endforeach(test)
 
-add_executable(test_crypto test_crypto.cpp)
-target_include_directories(test_crypto PRIVATE include)
-target_link_libraries(test_crypto Olm::Olm)
+add_test(Base64 test_base64)
 add_test(Crypto test_crypto)
-
-add_executable(test_group_session test_group_session.cpp)
-target_include_directories(test_group_session PRIVATE include)
-target_link_libraries(test_group_session Olm::Olm)
 add_test(GroupSession test_group_session)
-
-add_executable(test_list test_list.cpp)
-target_include_directories(test_list PRIVATE include)
-target_link_libraries(test_list Olm::Olm)
 add_test(List test_list)
-
-add_executable(test_megolm test_megolm.cpp)
-target_include_directories(test_megolm PRIVATE include)
-target_link_libraries(test_megolm Olm::Olm)
 add_test(Megolm test_megolm)
-
-add_executable(test_message test_message.cpp)
-target_include_directories(test_message PRIVATE include)
-target_link_libraries(test_message Olm::Olm)
 add_test(Message test_message)
-
-add_executable(test_olm test_olm.cpp)
-target_include_directories(test_olm PRIVATE include)
-target_link_libraries(test_olm Olm::Olm)
 add_test(Olm test_olm)
-
-add_executable(test_olm_decrypt test_olm_decrypt.cpp)
-target_include_directories(test_olm_decrypt PRIVATE include)
-target_link_libraries(test_olm_decrypt Olm::Olm)
 add_test(OlmDecrypt test_olm_decrypt)
-
-add_executable(test_olm_sha256 test_olm_sha256.cpp)
-target_include_directories(test_olm_sha256 PRIVATE include)
-target_link_libraries(test_olm_sha256 Olm::Olm)
 add_test(OlmSha256 test_olm_sha256)
-
-add_executable(test_olm_signature test_olm_signature.cpp)
-target_include_directories(test_olm_signature PRIVATE include)
-target_link_libraries(test_olm_signature Olm::Olm)
 add_test(OlmSignature test_olm_signature)
-
-add_executable(test_olm_using_malloc test_olm_using_malloc.cpp)
-target_include_directories(test_olm_using_malloc PRIVATE include)
-target_link_libraries(test_olm_using_malloc Olm::Olm)
 add_test(OlmUsingMalloc test_olm_using_malloc)
-
-add_executable(test_ratchet test_ratchet.cpp)
-target_include_directories(test_ratchet PRIVATE include)
-target_link_libraries(test_ratchet Olm::Olm)
 add_test(Ratchet test_ratchet)
-
-add_executable(test_session test_session.cpp)
-target_include_directories(test_session PRIVATE include)
-target_link_libraries(test_session Olm::Olm)
 add_test(Session test_session)
+add_test(PublicKey test_session)