Package stub has implementations of the shell package intended for use in tests where launching an external process is undesirable.

CloneEnv returns a copy of the current process's environment variables.

Command returns a Cmd with the specified command and arguments set.

JoinEnv combines the given key and values into an environment variable string.

NewEnv returns a copy of the current process's environment variables.

SplitEnv splits the given environment variable string into key and values.

LocalTarget is an implementation of Target that runs the command on the local machine using the exec package.

Cmd holds the configuration to run an external command.

Env holds the environment variables for a new process.

Process is the interface to a running process, as started by a Target.

Target is the interface for an object that supports execution of Commands.