[libgit2] Update to 1.8.0 (#38169)

- [x] Changes comply with the [maintainer
guide](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/contributing/maintainer-guide.md).
- [x] SHA512s are updated for each updated download.
- [x] The "supports" clause reflects platforms that may be fixed by this
new version.
- [x] Any fixed [CI
baseline](https://github.com/microsoft/vcpkg/blob/master/scripts/ci.baseline.txt)
entries are removed from that file.
- [x] Any patches that are no longer applied are deleted from the port's
directory.
- [x] The version database is fixed by rerunning `./vcpkg x-add-version
--all` and committing the result.
- [x] Only one version is added to each modified port's versions file.

---------

Co-authored-by: Cheney Wang <38240633+Cheney-W@users.noreply.github.com>

ports/libgit2/dependencies.diff

@@ -24,18 +24,20 @@ index 2a3a91b..523fa72 100644
  	list(APPEND LIBGIT2_SYSTEM_LIBS ${PCRE_LIBRARIES})
  	list(APPEND LIBGIT2_PC_REQUIRES "libpcre")
 diff --git a/cmake/SelectSSH.cmake b/cmake/SelectSSH.cmake
-index 23dfc97..f481527 100644
+index 079857f50..a2e2bd212 100644
 --- a/cmake/SelectSSH.cmake
 +++ b/cmake/SelectSSH.cmake
-@@ -1,6 +1,10 @@
- # Optional external dependency: libssh2
- if(USE_SSH)
+@@ -4,7 +4,11 @@ if(USE_SSH STREQUAL "exec")
+
+ 	add_feature_info(SSH ON "using OpenSSH exec support")
+ elseif(USE_SSH STREQUAL ON OR USE_SSH STREQUAL "libssh2")
 -	find_pkglibraries(LIBSSH2 libssh2)
 +	find_package(PkgConfig REQUIRED)
 +	pkg_check_modules(LIBSSH2 REQUIRED libssh2)
 +	set(LIBSSH2_LIBRARIES "${LIBSSH2_LINK_LIBRARIES}")
 +	set(LIBSSH2_LDFLAGS "")
 +	list(APPEND LIBGIT2_PC_REQUIRES "libssh2")
+
  	if(NOT LIBSSH2_FOUND)
  		find_package(LibSSH2)
- 		set(LIBSSH2_INCLUDE_DIRS ${LIBSSH2_INCLUDE_DIR})
+

ports/libgit2/mingw-winhttp.diff

@@ -1,8 +1,8 @@
-diff --git a/cmake/SelectWinHTTP.cmake b/cmake/SelectWinHTTP.cmake
-index 96e0bdb..31c3a56 100644
---- a/cmake/SelectWinHTTP.cmake
-+++ b/cmake/SelectWinHTTP.cmake
-@@ -3,7 +3,7 @@ if(WIN32 AND USE_WINHTTP)
+diff --git a/cmake/SelectHTTPSBackend.cmake b/cmake/SelectHTTPSBackend.cmake
+index d293001f5..108b8767c 100644
+--- a/cmake/SelectHTTPSBackend.cmake
++++ b/cmake/SelectHTTPSBackend.cmake
+@@ -120,7 +120,7 @@ if(USE_HTTPS)
  
  	# Since MinGW does not come with headers or an import library for winhttp,
  	# we have to include a private header and generate our own import library

ports/libgit2/portfile.cmake

@@ -1,9 +1,9 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO libgit2/libgit2
-    REF v1.6.4
-    SHA512 fd73df91710f19b0d6c3765c37c7f529233196da91cf4d58028a8d3840244f11df44abafabd74a8ed1cbe4826d1afd6ff9f01316d183ace0924c65e7cf0eb8d5
-    HEAD_REF maint/v1.6
+    REF v1.8.0
+    SHA512 e5634267bd9c6a594c9a954d09c657e7b8aadf213609bf7dd83b99863d0d0c7109a5277617dd508abc2da54ea3f12c2af1908d1aeb73c000e94056e2f3653144
+    HEAD_REF main
     PATCHES
         c-standard.diff # for 'inline' in system headers
         cli-include-dirs.diff
@@ -25,6 +25,7 @@ string(COMPARE EQUAL "${VCPKG_CRT_LINKAGE}" "static" STATIC_CRT)
 
 set(REGEX_BACKEND OFF)
 set(USE_HTTPS OFF)
+set(USE_SSH OFF)
 
 function(set_regex_backend VALUE)
     if(REGEX_BACKEND)
@@ -53,6 +54,11 @@ foreach(GIT2_FEATURE ${FEATURES})
         set_tls_backend("SecureTransport")
     elseif(GIT2_FEATURE STREQUAL "mbedtls")
         set_tls_backend("mbedTLS")
+    elseif(GIT2_FEATURE STREQUAL "ssh")
+        set(USE_SSH ON)
+        message(STATUS "This version of `libgit2` uses the default (`libssh2`) backend. To use the newer backend which utilizes the `ssh` CLI from a local install of OpenSSH instead, create an overlay port of this with USE_SSH set to 'exec' and the `libssh2` dependency removed.")
+        message(STATUS "This recipe is at ${CMAKE_CURRENT_LIST_DIR}")
+        message(STATUS "See the overlay ports documentation at https://learn.microsoft.com/vcpkg/concepts/overlay-ports")
     endif()
 endforeach()
 
@@ -64,8 +70,7 @@ vcpkg_find_acquire_program(PKGCONFIG)
 
 vcpkg_check_features(
     OUT_FEATURE_OPTIONS GIT2_FEATURES
-    FEATURES    
-        ssh     USE_SSH
+    FEATURES
         tools   BUILD_CLI
 )
 
@@ -76,6 +81,7 @@ vcpkg_cmake_configure(
         -DUSE_HTTP_PARSER=system
         -DUSE_HTTPS=${USE_HTTPS}
         -DREGEX_BACKEND=${REGEX_BACKEND}
+        -DUSE_SSH=${USE_SSH}
         -DSTATIC_CRT=${STATIC_CRT}
         "-DPKG_CONFIG_EXECUTABLE=${PKGCONFIG}"
         -DCMAKE_DISABLE_FIND_PACKAGE_GSSAPI:BOOL=ON

ports/libgit2/vcpkg.json

@@ -1,7 +1,6 @@
 {
   "name": "libgit2",
-  "version-semver": "1.6.4",
-  "port-version": 1,
+  "version-semver": "1.8.0",
   "description": "A C library implementing the Git core methods with a solid API",
   "homepage": "https://github.com/libgit2/libgit2",
   "license": null,

versions/baseline.json

@@ -4433,8 +4433,8 @@
       "port-version": 0
     },
     "libgit2": {
-      "baseline": "1.6.4",
-      "port-version": 1
+      "baseline": "1.8.0",
+      "port-version": 0
     },
     "libgme": {
       "baseline": "0.6.3",

versions/l-/libgit2.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "83d6bb1f73f67956eebce5f63e024790b12c0f39",
+      "version-semver": "1.8.0",
+      "port-version": 0
+    },
     {
       "git-tree": "7a3e64338633f5a89dca3586094f3f156f5a0a42",
       "version-semver": "1.6.4",