This subrepository holds the source for various packages and tools that support development of the Go programming language. To submit changes to this repository, see http://golang.org/doc/contribute.html. app/: a.k.a the "dashboard"; the App Engine code that runs http://build.golang.org/ cmd/: buildlet/: HTTP server that runs on a VM and is told what to write to disk and what command to run. This is cross-compiled to different architectures and is the first program run when a builder VM comes up. It then is contacted by the coordinator to do a build. Not all builders use the buildlet (at least not yet). builder/: gobuilder, a Go continuous build client. The original Go builder program. coordinator/: daemon that runs on CoreOS on Google Compute Engine and manages builds using Docker containers and/or VMs as needed. retrybuilds/: a Go client program to delete build results from the dashboard (app) upload/: a Go program to upload to Google Cloud Storage. used by Makefiles elsewhere. watcher/: a daemon that watches for new commits to the Go repository and its sub-repositories, and notifies the dashboard of those commits. env/: configuration files describing the environment of builders and related binaries. Many builders are still configured ad-hoc, without a hermetic environment. types/: a Go package contain common types used by other pieces. If you wish to run a Go builder, please email golang-dev@googlegroups.com first. There is documentation at https://golang.org/wiki/DashboardBuilders but depending on the type of builder, we may want to run it ourselves, after you prepare an environment description (resulting in a VM image) of it. See the env directory.