==== Changes Related to manifests ====
* Add the `manifests` feature flag
* This only says whether we look for a `vcpkg.json` in the cwd, not
whether we support parsing manifests (for ports, for example)
* Changes to the manifests RFC
* `"authors"` -> `"maintainers"`
* `--x-classic-mode` -> `-manifests` \in `vcpkg_feature_flags`
* reserve `"core"` in addition to `"default"`, since that's already
reserved for features
* Add a small helper note about what identifiers must look like
* `<license-string>`: SPDX v3.8 -> v3.9
* `"feature"."description"` is allowed to be an array of strings as well
* `"version"` -> `"version-string"` for forward-compat with versions
RFC
* Add the `--feature-flags` option
* Add the ability to turn off feature flags via passing
`-<feature-flag>` to `VCPKG_FEATURE_FLAGS` or `--feature-flags`
* Add CMake toolchain support for manifests
* Requires either:
* a feature flag of `manifests` in either `Env{VCPKG_FEATURE_FLAGS}`
or `VCPKG_FEATURE_FLAGS`
* Passing the `VCPKG_ENABLE_MANIFESTS` option
* The toolchain will install your packages to
`${VCPKG_MANIFEST_DIR}/vcpkg_installed`.
* Add MSBuild `vcpkg integrate install` support for manifests
* Requires `VcpkgEnableManifest` to be true
* `vcpkg create` creates a port that has a `vcpkg.json` instead of a
`CONTROL`
* argparse, abseil, 3fd, and avisynthplus ports switched to manifest
from CONTROL
* Add support for `--x-manifest-root`, as well as code for finding it if
not passed
* Add support for parsing manifests!
* Add a filesystem lock!
==== Important Changes which are somewhat unrelated to manifests ====
* Rename `logicexpression.{h,cpp}` to `platform-expression.{h,cpp}`
* Add `PlatformExpression` type which takes the place of the old logic
expression
* Split the parsing of platform expressions from checking whether
they're true or not
* Eagerly parse PlatformExpressions as opposed to leaving them as
strings
* Add checking for feature flag consistency
* i.e., if `-binarycaching` is passed, you shouldn't be passing
`--binarysource`
* Add the `Json::Reader` type which, with the help of user-defined
visitors, converts JSON to your internal type
* VcpkgArgParser: place the switch names into a constant as opposed to
using magic constants
* In general update the parsing code so that this ^ works
* Add `Port-Version` fields to CONTROL files
* This replaces the existing practice of
`Version: <my-version>-<port-version>`
==== Smaller changes ====
* small drive-by cleanups to some CMake
* `${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}` ->
`${CURRENT_INSTALLED_DIR}`
* Remove `-analyze` when compiling with clang-cl, since that's not a
supported flag (vcpkg's build system)
* Add a message about which compiler is detected by vcpkg's build
system machinery
* Fix `Expected::then`
* Convert `""` to `{}` for `std::string` and `fs::path`, to avoid a
`strlen` (additionally, `.empty()` instead of `== ""`, and `.clear()`)
* Add `Strings::strto` which converts strings to numeric types
* Support built-in arrays and `StringView` for `Strings::join`
* Add `operator<` and friends to `StringView`
* Add `substr` to `StringView`
* SourceParagraphParser gets some new errors
On some networks, access to FTP sites is restricted. In order to still download, build and install libxml2, an http mirror has to be added to the cmake file.
