Extractly (Extractly v0.5.0) View Source
Provide easy access to information inside the templates rendered by mix xtra
Link to this section Summary
Functions
Emits a comment including a message not to edit the created file, as it will be recreated from this template.
Returns docstring of a function Ex
Returns docstring of a macro
Returns docstring of a module Ex
Returns the output of a mix task Ex
A convenience method to access this libraries version
Link to this section Functions
Emits a comment including a message not to edit the created file, as it will be recreated from this template.
It is a convenience to include this into your templates as follows
<%= xtra.do_not_edit_warning %>
or I18n'ed
<%= xtra.do_not_edit_warning, lang: :fr %>
If you are not generating html or markdown the comment can be parametrized
<%= xtra.do_not_edit_warning, comment_start: "-- ", comment_end: "" %>
If you want to include the name of the source template use template: template
option, so
a call may be as complex as:
<%= xtra.do_not_edit_warning, comment_start: "-- ", comment_end: "", template: template, lang: :it %>
Returns docstring of a function Ex:
iex(0)> {:ok, lines} = Extractly.functiondoc("Extractly.moduledoc/2") |> hd()
...(0)> lines |> String.split("\n") |> Enum.take(3)
[" Returns docstring of a module", " Ex:", ""]
We can also pass a list of functions to get their docs concatenated
iex(1)> [{:ok, moduledoc}, {:error, message}] = Extractly.functiondoc(["Extractly.moduledoc/2", "Extactly.functiondoc/2"])
...(1)> moduledoc |> String.split("\n") |> Enum.take(4)
[ " Returns docstring of a module",
" Ex:",
"",
" Extractly.moduledoc(\"Extractly\")"]
iex(2)> message
"Function doc for function Extactly.functiondoc/2 not found"
If all the functions are in the same module the following form can be used
iex(3)> [{:ok, out}, _] = Extractly.functiondoc(["moduledoc/2", "functiondoc/2"], module: "Extractly")
...(3)> String.split(out, "\n") |> hd()
" Returns docstring of a module"
However it is convenient to add a markdown headline before each functiondoc, especially in these cases,
it can be done by indicating the headline: level
option
iex(4)> [{:ok, moduledoc}, {:ok, functiondoc}] = Extractly.functiondoc(["moduledoc/2", "functiondoc/2"], module: "Extractly", headline: 2)
...(4)> moduledoc |> String.split("\n") |> Enum.take(3)
[ "## Extractly.moduledoc/2",
"",
" Returns docstring of a module"]
iex(5)> functiondoc |> String.split("\n") |> Enum.take(3)
[ "## Extractly.functiondoc/2",
"",
" Returns docstring of a function"]
Often times we are interested by all public functiondocs...
iex(6)> [{:ok, out}|_] = Extractly.functiondoc(:all, module: "Extractly", headline: 2)
...(6)> String.split(out, "\n") |> Enum.take(3)
[ "## Extractly.do_not_edit_warning/1",
"",
" Emits a comment including a message not to edit the created file, as it will be recreated from this template."]
We can specify a language to wrap indented code blocks into ```elixir\n...\n```
Here is an example
iex(7)> [ok: doc] = Extractly.functiondoc("Extractly.functiondoc/2", wrap_code_blocks: "elixir")
...(7)> doc |> String.split("\n") |> Enum.take(10)
[ " Returns docstring of a function",
" Ex:",
"",
"```elixir",
" iex(0)> {:ok, lines} = Extractly.functiondoc(\"Extractly.moduledoc/2\") |> hd()",
" ...(0)> lines |> String.split(\"\\n\") |> Enum.take(3)",
" [\" Returns docstring of a module\", \" Ex:\", \"\"]",
"```",
"",
" We can also pass a list of functions to get their docs concatenated"]
Returns docstring of a macro
Same naming convention for macros as for functions.
Returns docstring of a module Ex:
Extractly.moduledoc("Extractly")
Returns the output of a mix task Ex:
iex(8)> Extractly.task("cmd", ~W[echo 42])
"42\n"
iex(9)> try do
...(9)> Extractly.task("xxx")
...(9)> rescue
...(9)> e in RuntimeError -> e.message |> String.split("\n") |> hd()
...(9)> end
"The following output was produced wih error code 1"
A convenience method to access this libraries version