Remove converter

This commit is contained in:
Liam 2024-04-28 21:30:14 -04:00
parent d9b3fe4fc8
commit 9e79648e44

View file

@ -1,233 +0,0 @@
defmodule Mix.Tasks.ConvertToVerifiedRoutes do
@moduledoc """
Replaces routes with verified routes.
Forked from
https://gist.github.com/andreaseriksson/e454b9244a734310d4ab74d8595f98cd
https://gist.github.com/jiegillet/e6357c82e36a848ad59295eb3d5a1135
This requires all routes to consistently be aliased with
alias PhilomenaWeb.Router.Helpers, as: Routes
Run with
mix convert_to_verified_routes
"""
use Mix.Task
@regex ~r/(Routes\.)([a-zA-Z0-9_]+)(path|url)\(/
@web_module PhilomenaWeb
def run(_) do
Path.wildcard("test/**/*.ex*")
|> Enum.concat(Path.wildcard("lib/**/*.ex*"))
|> Enum.concat(Path.wildcard("lib/**/*.eex*"))
|> Enum.concat(Path.wildcard("lib/**/*.slime"))
|> Enum.sort()
|> Enum.reject(&String.contains?(&1, "convert_to_verified_routes.ex"))
|> Enum.filter(&(&1 |> File.read!() |> String.contains?("Routes.")))
|> Enum.each(&format_file/1)
:ok
end
def format_file(filename) do
Mix.shell().info(filename)
formatted_content =
filename
|> File.read!()
|> format_string()
File.write!(filename, [formatted_content])
end
def format_string(source) do
case Regex.run(@regex, source, capture: :first, return: :index) do
[{index, length}] ->
# Compute full length of expression
length = nibble_expression(source, index, length)
# Convert to verified route format
route = format_route(String.slice(source, index, length))
# Split string around expression
prefix = String.slice(source, 0, index)
suffix = String.slice(source, index + length, String.length(source))
# Insert verified route and rerun
format_string("#{prefix}#{route}#{suffix}")
_ ->
source
end
end
defp nibble_expression(source, index, length) do
if index + length > String.length(source) do
raise "Failed to match route expression"
end
case Code.string_to_quoted(String.slice(source, index, length)) do
{:ok, _macro} ->
length
_ ->
nibble_expression(source, index, length + 1)
end
end
defp format_route(route) do
ast =
Code.string_to_quoted!(route,
literal_encoder: &{:ok, {:__block__, &2, [&1]}},
unescape: false,
token_metadata: true
)
ast
|> Macro.prewalk(&replace_route/1)
|> Code.quoted_to_algebra(escape: false)
|> Inspect.Algebra.format(:infinity)
end
defp decode_literal(literal) when is_binary(literal) or is_integer(literal) do
{:ok, literal}
end
defp decode_literal({:__block__, _, [literal]}) do
{:ok, literal}
end
defp decode_literal(node), do: {:error, node}
defp encode_literal(literal) do
{:__block__, [], [literal]}
end
# Routes.url(MyAppWeb.Endpoint)
defp replace_route({{:., _, [{:__aliases__, _, [:Routes]}, :url]}, _, [_conn_or_endpoint]}) do
{:url, [], [{:sigil_p, [delimiter: "\""], [{:<<>>, [], ["/"]}, []]}]}
end
# Routes.static_path(conn, "/images/favicon.ico")
defp replace_route({{:., _, [{:__aliases__, _, [:Routes]}, :static_path]}, _, args}) do
[_conn_or_endpoint, path] = args
case decode_literal(path) do
{:ok, path} -> {:sigil_p, [delimiter: "\""], [{:<<>>, [], [path]}, []]}
_ -> {:sigil_p, [delimiter: "\""], [path, []]}
end
end
# Routes.static_url(conn, "/images/favicon.ico")
defp replace_route({{:., _, [{:__aliases__, _, [:Routes]}, :static_url]}, _, args}) do
[_conn_or_endpoint, path] = args
sigil =
case decode_literal(path) do
{:ok, path} -> {:sigil_p, [delimiter: "\""], [{:<<>>, [], [path]}, []]}
_ -> {:sigil_p, [delimiter: "\""], [path, []]}
end
{:url, [], [sigil]}
end
# Routes.some_path(conn, :action, "en", query_params)
defp replace_route(
{{:., _, [{:__aliases__, _, [:Routes]}, path_name]}, _, [_ | _] = args} = node
) do
[_conn_or_endpoint, action | params] = args
action =
case decode_literal(action) do
{:ok, action} -> action
_ -> action
end
path_name = "#{path_name}"
case find_verified_route(path_name, action, params) do
:ok -> node
route -> route
end
end
defp replace_route(node), do: node
defp find_verified_route(path_name, action, arguments) do
# pleaaaase don't have a route named Routes.product_url_path(conn, :index)
trimmed_path = path_name |> String.trim_trailing("_path") |> String.trim_trailing("_url")
route =
Phoenix.Router.routes(@web_module.Router)
|> Enum.find(fn %{helper: helper, plug_opts: plug_opts} ->
plug_opts == action && is_binary(helper) && trimmed_path == helper
end)
case route do
%{path: path} ->
{path_bits, query_params} =
path
|> String.split("/", trim: true)
|> replace_path_variables(arguments, [])
path_bits =
path_bits
|> Enum.flat_map(fn bit -> ["/", bit] end)
|> format_for_sigil_binary_args(query_params)
sigil = {:sigil_p, [delimiter: "\""], [{:<<>>, [], path_bits}, []]}
if String.ends_with?(path_name, "_url") do
{:url, [], [sigil]}
else
sigil
end
_ ->
Mix.shell().error(
"Could not find route #{path_name}, with action #{inspect(action)} and arguments #{inspect(arguments)}"
)
end
end
defp replace_path_variables([], arguments, path_bits) do
{Enum.reverse(path_bits), arguments}
end
defp replace_path_variables(path, [], path_bits) do
{Enum.reverse(path_bits) ++ path, []}
end
# conceptually /post/:post_id -> /post/#{id}
defp replace_path_variables([path_piece | rest], [arg | args], path_bits) do
if String.starts_with?(path_piece, ":") do
replace_path_variables(rest, args, [arg | path_bits])
else
replace_path_variables(rest, [arg | args], [path_piece | path_bits])
end
end
defp format_for_sigil_binary_args(path_bits, [_ | _] = query_params) do
format_for_sigil_binary_args(path_bits ++ ["?" | query_params], [])
end
defp format_for_sigil_binary_args(path_bits, []) do
path_bits
|> Enum.map(&decode_literal/1)
|> Enum.map(fn
{:ok, bit} when is_binary(bit) ->
bit
{:ok, bit} when is_atom(bit) or is_integer(bit) ->
to_string(bit)
{_, bit} ->
{:"::", [],
[
{{:., [], [Kernel, :to_string]}, [from_interpolation: true], [encode_literal(bit)]},
{:binary, [], Elixir}
]}
end)
end
end