Files
phosphoricons/lib/heroicons.ex
2022-09-01 15:43:57 -04:00

141 lines
4.0 KiB
Elixir

defmodule Heroicons do
@moduledoc """
This library provides Phoenix Components for every [Heroicon](https://github.com/tailwindlabs/heroicons).
See `Heroicons.Outline` and `Heroicons.Solid` for the two styles of icon.
## Examples
<Heroicons.Outline.adjustments />
<Heroicons.Solid.arrow_circle_right class="w-6 h-6" />
Can also be used as a function
<%= Heroicons.Outline.adjustments() %>
<%= Heroicons.Solid.arrow_circle_right(class: "w-6 h-6") />
Heroicons are designed by [Steve Schoger](https://twitter.com/steveschoger)
"""
# https://github.com/tailwindlabs/heroicons/releases
@latest_version "2.0.10"
@tmp_dir_name "heroicons-elixir"
require Logger
@doc false
# Latest known version at the time of publishing.
def latest_version, do: @latest_version
@doc """
Returns the configured Heroicons version.
"""
def configured_version do
Application.get_env(:heroicons, :version, latest_version())
end
@doc false
def svgs_path, do: Path.join(:code.priv_dir(:heroicons), "icons")
def update do
version = configured_version()
tmp_dir = Path.join(System.tmp_dir!(), @tmp_dir_name)
svgs_dir = Path.join([tmp_dir, "heroicons-#{version}", "optimized"])
File.rm_rf!(tmp_dir)
File.mkdir_p!(tmp_dir)
url = "https://github.com/tailwindlabs/heroicons/archive/refs/tags/v#{version}.zip"
archive = fetch_body!(url)
case unpack_archive(".zip", archive, tmp_dir) do
:ok -> :ok
other -> raise "couldn't unpack archive: #{inspect(other)}"
end
# Copy icon styles, mini, outline and solid, to priv folder
svgs_dir
|> File.ls!()
|> Enum.each(fn size ->
case size do
"20" ->
copy_svg_files(Path.join([svgs_dir, size, "solid"]), "mini")
"24" ->
Path.join(svgs_dir, size)
|> File.ls!()
|> Enum.each(fn style -> copy_svg_files(Path.join([svgs_dir, size, style]), style) end)
_ ->
true
end
end)
end
defp copy_svg_files(src_dir, style) do
dest_dir = Path.join(svgs_path(), style)
File.mkdir_p!(dest_dir)
File.cp_r!(src_dir, dest_dir)
end
defp fetch_body!(url) do
url = String.to_charlist(url)
Logger.debug("Downloading heroicons from #{url}")
{:ok, _} = Application.ensure_all_started(:inets)
{:ok, _} = Application.ensure_all_started(:ssl)
if proxy = System.get_env("HTTP_PROXY") || System.get_env("http_proxy") do
Logger.debug("Using HTTP_PROXY: #{proxy}")
%{host: host, port: port} = URI.parse(proxy)
:httpc.set_options([{:proxy, {{String.to_charlist(host), port}, []}}])
end
if proxy = System.get_env("HTTPS_PROXY") || System.get_env("https_proxy") do
Logger.debug("Using HTTPS_PROXY: #{proxy}")
%{host: host, port: port} = URI.parse(proxy)
:httpc.set_options([{:https_proxy, {{String.to_charlist(host), port}, []}}])
end
# https://erlef.github.io/security-wg/secure_coding_and_deployment_hardening/inets
cacertfile = CAStore.file_path() |> String.to_charlist()
http_options = [
ssl: [
verify: :verify_peer,
cacertfile: cacertfile,
depth: 2,
customize_hostname_check: [
match_fun: :public_key.pkix_verify_hostname_match_fun(:https)
],
versions: protocol_versions()
]
]
options = [body_format: :binary]
case :httpc.request(:get, {url, []}, http_options, options) do
{:ok, {{_, 200, _}, _headers, body}} ->
body
other ->
raise "couldn't fetch #{url}: #{inspect(other)}"
end
end
defp protocol_versions do
if otp_version() < 25, do: [:"tlsv1.2"], else: [:"tlsv1.2", :"tlsv1.3"]
end
defp otp_version, do: :erlang.system_info(:otp_release) |> List.to_integer()
defp unpack_archive(".zip", zip, cwd) do
with {:ok, _} <- :zip.unzip(zip, cwd: to_charlist(cwd)), do: :ok
end
defp unpack_archive(_, tar, cwd) do
:erl_tar.extract({:binary, tar}, [:compressed, cwd: to_charlist(cwd)])
end
end