metastatic

0.18.0

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Cross-language code meta-model library using unified MetaAST representation. Parse, transform, and translate code across Python, Elixir, Ruby, Erlang, Haskell, and more via a shared three-tuple AST format.

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metastatic mix.exs

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mix.exs

defmodule Metastatic.MixProject do
  use Mix.Project

  @app :metastatic
  @version "0.18.0"
  @source_url "https://github.com/Oeditus/metastatic"

  def project do
    [
      app: @app,
      version: @version,
      elixir: "~> 1.18",
      elixirc_paths: elixirc_paths(Mix.env()),
      start_permanent: Mix.env() == :prod,
      consolidate_protocols: Mix.env() not in [:dev, :test],
      deps: deps(),
      description: description(),
      package: package(),
      docs: docs(),
      aliases: aliases(),
      test_coverage: [tool: ExCoveralls],
      dialyzer: [
        plt_file: {:no_warn, ".dialyzer/dialyzer.plt"},
        plt_add_deps: :app_tree,
        plt_add_apps: [:mix, :ex_unit],
        plt_core_path: ".dialyzer",
        list_unused_filters: true,
        ignore_warnings: ".dialyzer/ignore.exs"
      ],
      name: "Metastatic",
      source_url: @source_url
    ]
  end

  defp elixirc_paths(:test), do: ["lib", "test/support"]
  defp elixirc_paths(:dev), do: ["lib", "test/support"]
  defp elixirc_paths(_), do: ["lib"]

  def application do
    [
      extra_applications: [:logger],
      mod: {Metastatic.Application, []}
    ]
  end

  def cli do
    [
      preferred_envs: [
        coveralls: :test,
        "coveralls.detail": :test,
        "coveralls.post": :test,
        "coveralls.html": :test,
        "coveralls.json": :test
      ]
    ]
  end

  defp deps do
    [
      # Core dependencies
      {:jason, "~> 1.4"},
      {:ex_panda, "~> 0.2"},

      # Development and documentation
      {:ex_doc, "~> 0.34", only: :dev, runtime: false},
      {:excoveralls, "~> 0.18", only: :test, runtime: false},
      {:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false},
      {:credo, "~> 1.7", only: [:dev, :test], runtime: false},
      {:benchee, "~> 1.3", only: [:dev, :test], runtime: false},
      {:benchee_html, "~> 1.0", only: [:dev, :test], runtime: false}
    ]
  end

  defp aliases do
    [
      quality: ["format", "credo --strict"],
      "quality.ci": [
        "format --check-formatted",
        "credo --strict"
      ]
    ]
  end

  defp description do
    """
    Cross-language code analysis library using unified MetaAST representation.
    Build mutation operators, purity analyzers, and complexity metrics once in Elixir
    and apply them across Python, JavaScript, Elixir, Ruby, Go, Rust, and more.
    """
  end

  defp package do
    [
      name: @app,
      files: ~w(
        lib
        .formatter.exs
        mix.exs
        README.md
        GETTING_STARTED.md
        CHANGELOG.md
        THEORETICAL_FOUNDATIONS.md
        SUPPLEMENTAL_MODULES.md
        METAST_SPEC.md
        LICENSE
      ),
      licenses: ["GPL-3.0", "CC-BY-SA-4.0"],
      maintainers: ["Aleksei Matiushkin"],
      links: %{
        "GitHub" => @source_url,
        "Documentation" => "https://hexdocs.pm/#{@app}"
      }
    ]
  end

  defp docs do
    [
      main: "readme",
      logo: "stuff/img/logo-48x48.png",
      assets: %{"stuff/img" => "assets"},
      extras: extras(),
      extra_section: "GUIDES",
      source_url: @source_url,
      source_ref: "v#{@version}",
      formatters: ["html", "epub"],
      groups_for_modules: groups_for_modules(),
      nest_modules_by_prefix: [
        Metastatic.Adapters,
        Metastatic.Analysis,
        Metastatic.Analysis.BusinessLogic,
        Metastatic.Analysis.Cohesion,
        Metastatic.Analysis.Complexity,
        Metastatic.Analysis.ControlFlow,
        Metastatic.Analysis.DeadCode,
        Metastatic.Analysis.Duplication,
        Metastatic.Analysis.Encapsulation,
        Metastatic.Analysis.Purity,
        Metastatic.Analysis.Security,
        Metastatic.Analysis.Smells,
        Metastatic.Analysis.StateManagement,
        Metastatic.Analysis.Taint,
        Metastatic.Analysis.UnusedVariables,
        Metastatic.CLI,
        Metastatic.Semantic,
        Metastatic.Semantic.Domains,
        Metastatic.Supplemental
      ],
      authors: ["Aleksei Matiushkin"],
      canonical: "https://hexdocs.pm/#{@app}",
      skip_undefined_reference_warnings_on: [],
      before_closing_body_tag: &before_closing_body_tag/1
    ]
  end

  defp extras do
    [
      "README.md",
      "GETTING_STARTED.md": [title: "Getting Started"],
      "THEORETICAL_FOUNDATIONS.md": [title: "Theoretical Foundations"],
      "SUPPLEMENTAL_MODULES.md": [title: "Supplemental Modules"],
      "lib/metastatic/analysis/ANALYZER_PLUGIN_SYSTEM.md": [title: "Analyzer Plugin System"],
      "lib/metastatic/analysis/ANALYZER_PLUGIN_DESIGN.md": [title: "Analyzer Plugin Design"],
      "lib/metastatic/analysis/CUSTOM_ANALYZER_GUIDE.md": [title: "Custom Analyzer Guide"],
      "METAST_SPEC.md": [title: "MetaAST Informal Specification"],
      "CHANGELOG.md": [title: "Changelog"]
    ]
  end

  defp groups_for_modules do
    [
      "Core Components": [
        Metastatic.AST,
        Metastatic.Document,
        Metastatic.Builder,
        Metastatic.Validator
      ],
      CLI: [
        Metastatic.CLI,
        Metastatic.CLI.Formatter,
        Metastatic.CLI.Inspector,
        Metastatic.CLI.Translator
      ],
      Semantic: [
        Metastatic.Semantic.Domains.Auth,
        Metastatic.Semantic.Domains.Cache,
        Metastatic.Semantic.Domains.Database,
        Metastatic.Semantic.Domains.ExternalApi,
        Metastatic.Semantic.Domains.File,
        Metastatic.Semantic.Domains.Http,
        Metastatic.Semantic.Domains.Queue,
        Metastatic.Semantic.Enricher,
        Metastatic.Semantic.OpKind,
        Metastatic.Semantic.Patterns
      ],
      Analysis: [
        Metastatic.Analysis.Analyzer,
        Metastatic.Analysis.ApiSurface,
        Metastatic.Analysis.BusinessLogic.BlockingInPlug,
        Metastatic.Analysis.BusinessLogic.CallbackHell,
        Metastatic.Analysis.BusinessLogic.DirectStructUpdate,
        Metastatic.Analysis.BusinessLogic.HardcodedValue,
        Metastatic.Analysis.BusinessLogic.ImproperInputValidation,
        Metastatic.Analysis.BusinessLogic.IncorrectAuthorization,
        Metastatic.Analysis.BusinessLogic.InefficientFilter,
        Metastatic.Analysis.BusinessLogic.InlineJavascript,
        Metastatic.Analysis.BusinessLogic.InsecureDirectObjectReference,
        Metastatic.Analysis.BusinessLogic.MissingAuthentication,
        Metastatic.Analysis.BusinessLogic.MissingAuthorization,
        Metastatic.Analysis.BusinessLogic.MissingCSRFProtection,
        Metastatic.Analysis.BusinessLogic.MissingErrorHandling,
        Metastatic.Analysis.BusinessLogic.MissingHandleAsync,
        Metastatic.Analysis.BusinessLogic.MissingPreload,
        Metastatic.Analysis.BusinessLogic.MissingTelemetryForExternalHttp,
        Metastatic.Analysis.BusinessLogic.MissingTelemetryInAuthPlug,
        Metastatic.Analysis.BusinessLogic.MissingTelemetryInLiveviewMount,
        Metastatic.Analysis.BusinessLogic.MissingTelemetryInObanWorker,
        Metastatic.Analysis.BusinessLogic.MissingThrottle,
        Metastatic.Analysis.BusinessLogic.NPlusOneQuery,
        Metastatic.Analysis.BusinessLogic.PathTraversal,
        Metastatic.Analysis.BusinessLogic.SensitiveDataExposure,
        Metastatic.Analysis.BusinessLogic.SilentErrorCase,
        Metastatic.Analysis.BusinessLogic.SQLInjection,
        Metastatic.Analysis.BusinessLogic.SSRFVulnerability,
        Metastatic.Analysis.BusinessLogic.SwallowingException,
        Metastatic.Analysis.BusinessLogic.SyncOverAsync,
        Metastatic.Analysis.BusinessLogic.TelemetryInRecursiveFunction,
        Metastatic.Analysis.BusinessLogic.TOCTOU,
        Metastatic.Analysis.BusinessLogic.UnrestrictedFileUpload,
        Metastatic.Analysis.BusinessLogic.UnmanagedTask,
        Metastatic.Analysis.BusinessLogic.XSSVulnerability,
        Metastatic.Analysis.Cohesion,
        Metastatic.Analysis.Cohesion.Formatter,
        Metastatic.Analysis.Cohesion.Result,
        Metastatic.Analysis.Complexity,
        Metastatic.Analysis.Complexity.Cognitive,
        Metastatic.Analysis.Complexity.Cyclomatic,
        Metastatic.Analysis.Complexity.Formatter,
        Metastatic.Analysis.Complexity.FunctionMetrics,
        Metastatic.Analysis.Complexity.Halstead,
        Metastatic.Analysis.Complexity.LoC,
        Metastatic.Analysis.Complexity.Nesting,
        Metastatic.Analysis.Complexity.Result,
        Metastatic.Analysis.ControlFlow,
        Metastatic.Analysis.ControlFlow.Result,
        Metastatic.Analysis.Coupling,
        Metastatic.Analysis.DeadCode,
        Metastatic.Analysis.DeadCodeAnalyzer,
        Metastatic.Analysis.DeadCode.Result,
        Metastatic.Analysis.Duplication,
        Metastatic.Analysis.Duplication.Fingerprint,
        Metastatic.Analysis.Duplication.Reporter,
        Metastatic.Analysis.Duplication.Result,
        Metastatic.Analysis.Duplication.Similarity,
        Metastatic.Analysis.Duplication.Types,
        Metastatic.Analysis.Encapsulation,
        Metastatic.Analysis.Encapsulation.Formatter,
        Metastatic.Analysis.Encapsulation.Result,
        Metastatic.Analysis.NestingDepth,
        Metastatic.Analysis.Purity,
        Metastatic.Analysis.Purity.Effects,
        Metastatic.Analysis.Purity.Formatter,
        Metastatic.Analysis.Purity.Result,
        Metastatic.Analysis.Registry,
        Metastatic.Analysis.Runner,
        Metastatic.Analysis.Security,
        Metastatic.Analysis.Security.Result,
        Metastatic.Analysis.SimplifyConditional,
        Metastatic.Analysis.Smells,
        Metastatic.Analysis.Smells.Result,
        Metastatic.Analysis.StateManagement,
        Metastatic.Analysis.StateManagement.Formatter,
        Metastatic.Analysis.StateManagement.Result,
        Metastatic.Analysis.Taint,
        Metastatic.Analysis.Taint.Result,
        Metastatic.Analysis.UnusedVariables,
        Metastatic.Analysis.UnusedVariables.Result
      ],
      "Language Adapters": [
        Metastatic.Adapter,
        Metastatic.Adapter.Registry,
        Metastatic.Adapters.Elixir,
        Metastatic.Adapters.Elixir.FromMeta,
        Metastatic.Adapters.Elixir.MacroExpander,
        Metastatic.Adapters.Elixir.ToMeta,
        Metastatic.Adapters.Erlang,
        Metastatic.Adapters.Erlang.FromMeta,
        Metastatic.Adapters.Erlang.ToMeta,
        Metastatic.Adapters.Python,
        Metastatic.Adapters.Python.FromMeta,
        Metastatic.Adapters.Python.Subprocess,
        Metastatic.Adapters.Python.ToMeta,
        Metastatic.Adapters.Haskell,
        Metastatic.Adapters.Haskell.FromMeta,
        Metastatic.Adapters.Haskell.Subprocess,
        Metastatic.Adapters.Haskell.ToMeta,
        Metastatic.Adapters.Ruby,
        Metastatic.Adapters.Ruby.FromMeta,
        Metastatic.Adapters.Ruby.Subprocess,
        Metastatic.Adapters.Ruby.ToMeta
      ],
      Supplemental: [
        Metastatic.Supplemental,
        Metastatic.Supplemental.CompatibilityMatrix,
        Metastatic.Supplemental.Error,
        Metastatic.Supplemental.Info,
        Metastatic.Supplemental.Python.Asyncio,
        Metastatic.Supplemental.Python.Pykka,
        Metastatic.Supplemental.Registry,
        Metastatic.Supplemental.Transformer,
        Metastatic.Supplemental.Validator
      ],
      Internals: [
        Metastatic.Test.AdapterHelper,
        Metastatic.Test.FixtureHelper
      ]
    ]
  end

  defp before_closing_body_tag(:html) do
    """
    <script src="https://cdn.jsdelivr.net/npm/mermaid@10.9.0/dist/mermaid.min.js"></script>
    <script>
      document.addEventListener("DOMContentLoaded", function () {
        mermaid.initialize({
          startOnLoad: true,
          theme: "default",
          flowchart: {
            useMaxWidth: true,
            htmlLabels: true,
            curve: "basis"
          }
        });
        window.mermaid = mermaid;
      });
    </script>
    """
  end

  defp before_closing_body_tag(_), do: ""
end

Operator	Description	Example
name:	Match package name. Supports * wildcards and repo/package form	name:phx* or name:hexpm/phoenix
description:	Full-text search of package descriptions	description:auth
depends:	Packages depending on a given package. Supports repo:package form	depends:ecto or depends:hexpm:ecto
build_tool:	Filter by build tool	build_tool:mix
updated_after:	Packages updated after an ISO8601 datetime	updated_after:2025-01-01T00:00:00Z
extra:	Match custom metadata (key,value). Nested keys are separated by commas	extra:license,MIT