@spec mix(String.t(), [String.t()], Keyword.t()) :: function()

Create a run function for a job that executes a mix task with name task_name and the arguments args.

Available opts:

• :env -- a list of {key, value} pairs that will be used as environment variables.

@spec restore_cache(String.t()) :: function()

Restore a cache file.

• name is the base name of the archive to save (default: ".mash-cache")

@spec save_cache(String.t(), [String.t()]) :: function()

Save a cache file as a gzipped tar archive. We use tar because it preserves timestamps which are used by Elixir for determining "staleness" of compilation.

• name is the base name of the archive to save (default: ".mash-cache")
• files is the list of files/directories to save in the archive (default:["deps", "_build"])

@spec shell(String.t(), [String.t()], Keyword.t()) :: function()

Create a run function which executes the script/binary named command with the arguments args.

Available opts:

• :env -- a list of {key, value} pairs that will be used as environment variables.