macrtools 0.0.8

Breaking changes

• is_xcode_cli_installed() now reports whether the Command Line Tools package
  is installed, rather than whether it is the selected developer directory. Use
  developer_dir() or is_xcode_toolchain_usable() to ask about the selection.

• is_xcode_app_installed() now reports whether any Xcode is installed
  anywhere, rather than whether /Applications/Xcode.app is selected.

• xcode_cli_switch() takes path as its first argument, where password
  used to be.

New features

• Added support for macOS 27 (Golden Gate).

• xcode_toolchains() lists every developer directory xcode-select can be
  pointed at, with its version and whether it is active.

• is_xcode_toolchain_usable() reports whether a compiler is reachable through
  the active developer directory, which is what decides whether R can build a
  package.

• developer_dir() resolves the active developer directory, honoring
  DEVELOPER_DIR.

• xcode_cli_version() reports the installed Command Line Tools version.

• xcode_cli_switch() gained a path argument, so a toolchain from
  xcode_toolchains() can be selected instead of always forcing the Command
  Line Tools.

Bug fixes

• Xcode is detected outside its default location. Both predicates compared the
  active developer directory against a hardcoded path, so a versioned bundle
  such as /Applications/Xcode_16.4.app reported nothing installed and
  triggered a needless softwareupdate run.

• macOS 27 is recognized as supported. The version ceiling is exclusive, so the
  previous bound rejected every 27.x release and aborted
  macos_rtools_install(), gfortran_install() and openmp_install().

• macOS versions ending in .0 compare correctly. sw_vers reports only two
  components for those releases, which placed each one in the previous
  release's range: "12.0" read as Big Sur, "11.0" matched nothing, and
  "10.13" was rejected as unsupported.

• xcode_cli_install() no longer skips installation when an unselected Xcode
  exists elsewhere on disk, since it provides no compiler.

• macos_rtools_install() reports which toolchain is active instead of assuming
  a full Xcode, and reports a failure rather than success when nothing can
  compile.

• macos_rtools_uninstall() no longer reports a component as removed when it
  was not installed.

• The Command Line Tools version no longer comes from xcode-select --version,
  which reports the version of xcode-select itself.

• recipes_binary_install() documentation now states that the darwin
  repository is chosen by Darwin kernel version, not macOS version. The two are
  no longer a fixed offset apart.