[libgit2] Add SHA256 support via a feature (#49068)

ports/libgit2/portfile.cmake

@@ -71,6 +71,7 @@ vcpkg_check_features(
     OUT_FEATURE_OPTIONS GIT2_FEATURES
     FEATURES
         tools   BUILD_CLI
+        sha256  EXPERIMENTAL_SHA256
 )
 
 vcpkg_cmake_configure(
@@ -96,6 +97,11 @@ vcpkg_fixup_pkgconfig()
 vcpkg_cmake_config_fixup(CONFIG_PATH "lib/cmake/${PORT}")
 
 if("tools" IN_LIST FEATURES)
+    # Since SHA256 is considered an "experimental" feature, it renames the executable. This renames it back.
+    if("sha256" IN_LIST FEATURES)
+        file(RENAME "${CURRENT_PACKAGES_DIR}/bin/git2-experimental${VCPKG_TARGET_EXECUTABLE_SUFFIX}" "${CURRENT_PACKAGES_DIR}/bin/git2${VCPKG_TARGET_EXECUTABLE_SUFFIX}")
+    endif()
+
     vcpkg_copy_tools(TOOL_NAMES git2 AUTO_CLEAN)
 endif()
 

ports/libgit2/vcpkg.json

@@ -51,6 +51,9 @@
       "description": "SSL support (sectransp)",
       "supports": "osx"
     },
+    "sha256": {
+      "description": "[experimental] SHA256 OID support"
+    },
     "ssh": {
       "description": "SSH support via libssh2",
       "dependencies": [

scripts/test_ports/vcpkg-ci-libgit2/vcpkg.json

@@ -1,15 +1,16 @@
 {
   "name": "vcpkg-ci-libgit2",
   "version-string": "ci",
-  "description": "Validates libgit2 with ssh and tools.",
+  "description": "Validates libgit2 with ssh, tools, and sha256.",
   "dependencies": [
     {
       "name": "libgit2",
       "default-features": false,
       "features": [
         "ssh",
-        "tools"
+        "tools",
+        "sha256"
       ]
     }
   ]
-}
+}

versions/l-/libgit2.json

@@ -1,7 +1,7 @@
 {
   "versions": [
     {
-      "git-tree": "3132df66e48bd17fb623b7b7f052b73e4d8ad7a3",
+      "git-tree": "2fd041b43ab1c68f47f7a23ff487e7dfe3f92d30",
       "version-semver": "1.9.2",
       "port-version": 0
     },