Temporary directories that are monitored and automatically removed in Elixir.

The package can be installed by adding tmp to your list of dependencies in mix.exs:

def deps do
  [
    {:tmp, "~> 0.3.0"}
  ]
end

Define your Tmp module:

defmodule MyApp.Tmp do
  use Tmp
end

# Or with a custom base directory
defmodule MyApp.CustomTmp do
  use Tmp, base_dir: "/path/where/tmp/dirs/will/be"
end

Add it to your supervision tree:

children = [
  {MyApp.Tmp, name: MyApp.Tmp}
]

Use it in your code:

MyApp.Tmp.dir(fn tmp_dir_path ->
  file_path = Path.join(tmp_dir_path, "my_file")
  # do work with file_path...
  # then return a value
  Enum.sum([1,2,3])
end)
# => 6

When calling MyApp.Tmp.dir/2, you can pass the following options:

• :prefix (optional) - Prefix for the temporary directory name, defaults to nil
• :base_dir (optional) - Base directory for the temporary directory, defaults to System.tmp_dir() or the value set in use Tmp
• :timeout (optional) - Timeout in milliseconds, defaults to :infinity

MyApp.Tmp.dir(fn tmp_dir_path ->
  File.touch(Path.join(tmp_dir_path, "file_one"))
  # ... other important work

  2 + 2
end, prefix: "my_app", base_dir: "/tmp/custom_base")
# => 4

Documentation can be found at https://hexdocs.pm/tmp.

Tmp is MIT licensed.