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https://github.com/bonfire-networks/bonfire-app.git
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55 lines
2 KiB
Elixir
Executable file
55 lines
2 KiB
Elixir
Executable file
# Copyright (c) 2020 James Laver, mess Contributors
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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if not Code.ensure_loaded?(Mess) do
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defmodule Mess do
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@sources [path: "deps.path", git: "deps.git", hex: "deps.hex"]
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@newline ~r/(?:\r\n|[\r\n])/
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@parser ~r/^(?<indent>\s*)((?<package>[a-z_][a-z0-9_]+)\s*=\s*"(?<value>[^"]+)")?(?<post>.*)/
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@git_branch ~r/(?<repo>[^#]+)(#(?<branch>.+))?/
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def deps(sources \\ @sources, deps),
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do: deps(Enum.flat_map(sources, fn {k, v} -> read(v, k) end), deps, :deps)
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defp deps(packages, deps, :deps),
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do: deps(Enum.flat_map(packages, &dep_spec/1), deps, :uniq)
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defp deps(packages, deps, :uniq),
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do: Enum.uniq_by(packages ++ deps, &elem(&1, 0))
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defp read(path, kind) when is_binary(path), do: read(File.read(path), kind)
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defp read({:error, :enoent}, _kind), do: []
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defp read({:ok, file}, kind),
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do: Enum.map(String.split(file, @newline), &read_line(&1, kind))
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defp read_line(line, kind),
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do: Map.put(Regex.named_captures(@parser, line), :kind, kind)
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defp dep_spec(%{"package" => ""}), do: []
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defp dep_spec(%{"package" => p, "value" => v, :kind => :hex}),
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do: pkg(p, v, override: true)
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defp dep_spec(%{"package" => p, "value" => v, :kind => :path}),
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do: pkg(p, path: v, override: true)
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defp dep_spec(%{"package" => p, "value" => v, :kind => :git}), do: git(v, p)
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defp git(line, p) when is_binary(line),
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do: git(Regex.named_captures(@git_branch, line), p)
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defp git(%{"branch" => "", "repo" => r}, p),
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do: pkg(p, git: r, override: true)
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defp git(%{"branch" => b, "repo" => r}, p),
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do: pkg(p, git: r, branch: b, override: true)
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defp pkg(name, opts), do: [{String.to_atom(name), opts}]
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defp pkg(name, version, opts), do: [{String.to_atom(name), version, opts}]
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end
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end
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