Ignore pattern filter

Added

Adds the property ignore_pattern to the ex_rerun configuration:

config :ex_rerun,
  ...
  ignore_pattern: ~r{\.?#(.)}

which provides some finer granularity to ignore temporary or autogenerated files
that happens to have a file type that is in the file_types list. For example,
the pattern above, ~r{\.?#(.)}, ignores Emacs auto-save and interlocking files
as these files happen to have similar filenames as the files they are related to
but prepended with a # or .#. The default value for ignore_pattern is
nil, meaning no further filtering is performed.

Bumps the version Elixir version used for compiling ex_rerun to 1.9.

Pluggable tasks

Changed

Changes the configuration format to the following:

config :ex_rerun,
  scan_interval: 4000,
  silent: false,
  file_types: [".ex", ".exs", ".eex", ".json"],
  paths: ["lib", "priv"],
  tasks: [:elixir]

where:

• scan_interval specifies the number of ms to wait between rerun checks,
• silent toggles whether to print the output of the tasks registered, every
  time ex_rerun runs,
• file_types lists which file types that will trigger a rerun when changed,
• paths lists which folders to monitor, and
• tasks enumerates the mix tasks to run each time a code modification
  occurs, possible built-in values are: :elixir, :test, :escript,
  where
  • :elixir recompiles Elixir source code (same as Mix.Tasks.Compile.Elixir),
  • :test reruns any mix tests in the project (same as Mix.Tasks.Test), and
  • escript rebuilds a escript file (same as Mix.Tasks.Escript.Build).

Furthermore, tasks can also include custom mix tasks. For example, the hex
package elm_compile defines the
Mix.Tasks.Compile.Elm task which allows mix to also compile Elm files in a mix
project. An example project config using ex_rerun and elm_compile might look
like so:

config :ex_rerun,
  file_types: [".elm", ".ex", ".exs", ".eex", ".json"],
  paths: ["lib", "priv", "web"],
  tasks: [:elixir, Mix.Tasks.Compile.Elm]

Another example of a custom mix task could be to generate API documentation for
a project based on a set of RAML files.

Initial release

Added

• Support for monitoring Elixir and other source files and running mix tasks on
  code modification changes using the following configuration parameters:

# Default values
config :ex_rerun,
  scan_interval: 4000,
  silent: false,
  elm: false,
  test: false,
  escript: false,
  paths: ["lib", "priv"],
  file_types: [".ex", ".exs", ".eex", ".json"]

where:

• scan_interval specifies the number of ms to wait between rerun checks,
• silent toggles whether to print every time ex_rerun recompiles,
• elm toggles whether to run the elm compilation task on recompile, requires
  elm_compile to be installed as a
  project dependency,
• test toggles whether to also run mix test after each recompilation,
• escript toggles whether to run the escript compilation task on recompile,
• paths lists which folders to monitor, and
• file_types lists which files that will trigger a rerun when changed.