v0.4.0

Release Notes

• The root of the repository now hosts the dog Go package, which implements logic for parsing and manipulating Dogfiles and for constructing and running task chains. The new package dog/run handles the low level execution of tasks. Dog (the cli tool) has been moved into the cmd/dog subdirectory. More info on the reasons for this change can be found in this pull request.
• GoDoc can be used to read the documentation of the new packages dog and dog/run.
• Changes in the Dogfile Spec: exec is now runner. run is now code. Backwards compatibility support has been added.
• Dog uses exit status 1 if the main program fails and exit status 2 if any of the task fails.
• Support for dotenv has been removed.
• Renamed status code to exit status. It was wrong.
• Some examples added into the examples/ directory to show how to use dog as a library.
• Stdout and Stderr can be configured when running a task chain. This way future dogtools can choose to write output to files or to the network instead of using the operating system's standard outputs.
• A Bash completion script has been added to extras/dog.bashcompletion.