71 lines
1.8 KiB
Elixir
71 lines
1.8 KiB
Elixir
defmodule Mix.Tasks.Pandoc.Install do
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@moduledoc """
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Installs pandoc under `_build`.
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```bash
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$ mix pandoc.install
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$ mix pandoc.install --if-missing
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```
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By default, it installs #{Pandoc.latest_version()} but you can configure it
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in your config files, such as:
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config :pandoc, :version, "#{Pandoc.latest_version()}"
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## Options
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* `--runtime-config` - load the runtime configuration before executing
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command
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* `--if-missing` - install only if the given version does not exist
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"""
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@shortdoc "Installs pandoc under _build"
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@compile {:no_warn_undefined, Mix}
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use Mix.Task
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@impl true
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def run(args) do
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valid_options = [runtime_config: :boolean, if_missing: :boolean]
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{opts, base_url} =
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case OptionParser.parse_head!(args, strict: valid_options) do
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{opts, []} ->
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{opts, Pandoc.default_base_url()}
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{opts, [base_url]} ->
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{opts, base_url}
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{_, _} ->
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Mix.raise("""
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Invalid arguments to pandoc.install, expected one of:
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mix pandoc.install
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mix pandoc.install 'https://github.com/jgm/pandoc/releases/download/$version/pandoc-$version-$target.tar.gz'
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mix pandoc.install --runtime-config
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mix pandoc.install --if-missing
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""")
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end
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if opts[:runtime_config], do: Mix.Task.run("app.config")
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if opts[:if_missing] && latest_version?() do
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:ok
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else
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if function_exported?(Mix, :ensure_application!, 1) do
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Mix.ensure_application!(:inets)
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Mix.ensure_application!(:ssl)
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end
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Mix.Task.run("loadpaths")
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Pandoc.install(base_url)
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end
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end
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defp latest_version?() do
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version = Pandoc.configured_version()
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match?({:ok, ^version}, Pandoc.bin_version())
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end
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end
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