Switch all of the conan configuration to vcpkg

.gitmodules

@@ -73,3 +73,6 @@
 [submodule "auxil/zeekjs"]
 	path = auxil/zeekjs
 	url = https://github.com/corelight/zeekjs.git
+[submodule "auxil/vcpkg"]
+	path = auxil/vcpkg
+	url = https://github.com/microsoft/vcpkg

CMakeLists.txt

@@ -5,6 +5,17 @@ cmake_minimum_required(VERSION 3.15.0 FATAL_ERROR)
 if (WIN32)
     # Enable usage of CMAKE_MSVC_RUNTIME_LIBRARY variable
     cmake_policy(SET CMP0091 NEW)
+
+    # I tried to just use CMAKE_SOURCE_DIR and CMAKE_CURRENT_SOURCE_DIR
+    # but it's not setting the path correctly and so the toolchain
+    # variable doesn't get passed down to submodules like libkqueue
+    # correctly. Instead get the absolute path to the vcpkg.cmake file
+    # and use that.
+    get_filename_component(_toolchain ./auxil/vcpkg/scripts/buildsystems/vcpkg.cmake ABSOLUTE)
+
+    # This needs to happen before the project() call below so that it
+    # doesn't need to be manually passed on the command line.
+    set(CMAKE_TOOLCHAIN_FILE ${_toolchain} CACHE STRING "Vcpkg toolchain file")
 endif ()
 
 project(Zeek C CXX)
@@ -119,33 +130,23 @@ if (MSVC)
     set(OPENSSL_USE_STATIC_LIBS true)
     set(OPENSSL_MSVC_STATIC_RT true)
 
-    if (ZEEK_STANDALONE)
+    # Set PCAP_ROOT_DIR to point at the installation from vcpkg. A later call
-        include(${CMAKE_SOURCE_DIR}/cmake/conan.cmake)
+    # to FindPCAP.cmake will fill in the rest of the necessary variables.
-        conan_cmake_autodetect(settings)
-        # Install packages from conanfile
-        conan_cmake_install(PATH_OR_REFERENCE ${CMAKE_SOURCE_DIR}/ci/windows/conanfile_windows.txt
-                            BUILD missing SETTINGS ${settings})
-    endif ()
-
-    # Set LibPCAP to point to libpcap binaries.
     if (NOT PCAP_ROOT_DIR)
-        find_package(libpcap)
+        set(PCAP_ROOT_DIR "${VCPKG_INSTALLED_DIR}")
-        set(PCAP_ROOT_DIR "${libpcap_LIB_DIRS}/../")
-        set(PCAP_INCLUDE_DIR ${libpcap_INCLUDES})
-        set(PCAP_LIBRARY ${libpcap_LIBS})
     endif ()
 
     set(LIBPCAP_PCAP_COMPILE_NOPCAP_HAS_ERROR_PARAMETER false)
 
-    # Set ZLib to point at the right variable.
+    # Find zlib installed by vcpkg.
     find_package(ZLIB)
-    set(ZLIB_LIBRARY ${ZLIB_LIBRARIES})
+    set(ZLIB_LIBRARY ZLIB::ZLIB)
 
-    # Set CAres
+    # Find c-ares installed by vcpkg.
     find_package(c-ares)
     set(HAVE_CARES true) # Disable FindCAres cmake file
     include_directories(BEFORE ${c-ares_INCLUDE_DIRS})
-    set(zeekdeps ${zeekdeps} ${c-ares_LIBRARIES})
+    set(zeekdeps ${zeekdeps} c-ares::cares)
     add_definitions(-DCARES_STATICLIB)
 
     add_subdirectory(auxil/libunistd)

auxil/vcpkg

@@ -0,0 +1 @@
+Subproject commit 38d1652f152d36481f2f4e8a85c0f1e14f3769f7

ci/windows/Dockerfile

@@ -16,8 +16,6 @@ RUN [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePoin
 # Install prerequisites
 RUN choco install -y --no-progress visualstudio2019buildtools --version=16.11.11.0
 RUN choco install -y --no-progress visualstudio2019-workload-vctools --version=1.0.0 --package-parameters '--add Microsoft.VisualStudio.Component.VC.ATLMFC'
-# Pin conan to 1.58.0 until conan.cmake is updated to support 2.0
-RUN choco install -y --no-progress conan --version=1.58.0
 RUN choco install -y --no-progress sed
 RUN choco install -y --no-progress winflexbison3
 RUN choco install -y --no-progress msysgit

ci/windows/build.cmd

@@ -7,5 +7,5 @@ call "c:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliar
 mkdir build
 cd build
 
-cmake.exe .. -DCMAKE_BUILD_TYPE=release -DENABLE_ZEEK_UNIT_TESTS=yes -G Ninja
+cmake.exe .. -DCMAKE_BUILD_TYPE=release -DVCPKG_TARGET_TRIPLET="x64-windows-static" -DENABLE_ZEEK_UNIT_TESTS=yes -G Ninja
 cmake.exe --build .

ci/windows/conanfile_windows.txt

@@ -1,8 +0,0 @@
-[requires]
-zlib/1.2.11
-libpcap/1.10.1
-c-ares/1.21.0
-
-[generators]
-cmake_find_package
-cmake

cmake

@@ -1 +1 @@
-Subproject commit 01fcb683005e3c3a71ae867aa983b772a77e32d1
+Subproject commit 217865f599234029ae8eaecc5ee025fe0658688e

vcpkg.json

@@ -0,0 +1,9 @@
+{
+  "name": "main",
+  "version-string": "latest",
+  "dependencies": [
+    "c-ares",
+    "libpcap",
+    "zlib"
+  ]
+}