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First approach of the exporter: mix prexent.export task #19

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First approach of the exporter: mix prexent.export task #19

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4 changes: 3 additions & 1 deletion .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -37,4 +37,6 @@ npm-debug.log
.elixir_ls

*.iml
.idea
.idea

/exported/
55 changes: 55 additions & 0 deletions lib/mix/tasks/prexent_export.ex
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defmodule Mix.Tasks.Prexent.Export do
@moduledoc """
Run the Phoenix server with the endpoints defined by Prexent.

Execute `mix prexent` in your prexent project.

The default markdown file is `slides.md`, if you want to use another source file, run:

$ mix prexent FILE_NAME

The source markdown file is set in `Application.put_env(:prexent, :source_md, source_md)` to be consumed by the live view endpoint.

The default port is 4000, you can change it passing the `PORT` env:

$ PORT=4040 mix prexent

"""
use Mix.Task

@doc false
def run(args) do
source_md = get_source_name(args)
check_file!(source_md)
Mix.shell.info "Exporting to static presentation at 'exported/'.."
File.mkdir_p!("exported")
html = generate(source_md)
File.cd!("exported")
File.write!("index.html", html)
# copy static files
File.copy!("../priv/static/js/app.js", "app.js")
File.copy!("../priv/static/css/app.css", "app.css")
end

def generate(source_md) do
slides = Prexent.Parser.to_parsed_list(source_md)

assigns = %{
layout: {PrexentWeb.LayoutView, "export.html"},
slides: slides,
slide: 0,
code_runners: %{},
pid_slides: %{}
}

Phoenix.View.render_to_string(PrexentWeb.SlidesView, "slides.html", assigns)
end

defp get_source_name([]), do: "slides.md"
defp get_source_name(args), do: hd(args)

defp check_file!(filename) do
if not File.exists?(filename),
do: Mix.raise("The slides source file '#{filename}' does not exist")
end
end
17 changes: 17 additions & 0 deletions lib/prexent_web/templates/layout/export.html.eex
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<title>Prexent</title>
<link href="https://fonts.googleapis.com/css?family=Open+Sans:600,700|Roboto|Roboto+Mono:400,400i&display=swap" rel="stylesheet">
<link rel="stylesheet" href="app.css"/>
</head>
<body>
<main>
<%= render @view_module, @view_template, assigns %>
</main>
<script type="text/javascript" src="app.js"></script>
</body>
</html>