This change cerates a GN template called pw_host_tool which copies a
binary target to a common host_tools directory that can be added to a
user's PATH.
Change-Id: I9eb38ab4ff9d11a4a87e6be2547d5224370e3412
This change updates the Go GN integration to download external
dependencies for Go packages before running "go build". These
dependencies are listed in the pw_go_package template using build
metadata and collected to a "go get" invocation.
To support this, the pw_exec template is expanded to allow setting
positional arguments from a file.
Change-Id: If4f6c71f037b35bb041984da9982a1629d1d36b0
This change defines GN templates that allow building Go code as part of
Pigweed's build system. Go is also added as a supported language for the
proto_library template.
Change-Id: I3e639a12e6a8ba0a7a928c5d653c623cff58eb86
