Claudio Ortolina
100 lines
2.6 KiB
Elixir
100 lines
2.6 KiB
Elixir
defmodule MusicLibrary.Repo do
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@moduledoc """
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Main application repository using SQLite3 with FTS5 unicode and vec0 extensions.
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"""
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use Ecto.Repo,
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otp_app: :music_library,
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adapter: Ecto.Adapters.SQLite3
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@doc """
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Returns `:ok` if the current OS/architecture has precompiled SQLite extensions
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available (unicode, vec0). Raises `RuntimeError` with a diagnostic message
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including the detected platform and supported alternatives.
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"""
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def ensure_supported_platform! do
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case platform_string() do
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{:ok, _platform} -> :ok
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{:error, os, arch} -> raise_unsupported_platform(os, arch)
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end
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end
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@doc """
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Returns `true` if the current OS/architecture has precompiled SQLite extensions
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available (unicode, vec0).
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"""
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def supported_platform? do
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match?({:ok, _}, platform_string())
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end
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@doc """
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Returns the filesystem path for a named SQLite extension.
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Only macOS (Intel/Apple Silicon) and Linux (amd64/arm64) are supported.
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"""
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def extension_path(name) do
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platform = platform_string!()
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{_, os} = :os.type()
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extension =
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case os do
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:darwin -> "dylib"
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:linux -> "so"
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end
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Application.app_dir(:music_library, [
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"priv",
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"sqlite_extensions",
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platform,
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"#{name}.#{extension}"
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])
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end
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defp raise_unsupported_platform(os, arch) do
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raise """
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Unsupported platform: #{os} / #{arch}
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This application ships precompiled SQLite extensions (unicode, vec0) for:
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• darwin-amd64 (macOS Intel)
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• darwin-arm64 (macOS Apple Silicon)
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• linux-amd64 (Linux x86_64)
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• linux-arm64 (Linux aarch64)
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Your platform (#{inspect(os)} / #{arch}) is not supported. The SQLite extensions
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required for full-text search (unicode) and vector similarity search (vec0)
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cannot be loaded on this architecture.
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To run on this platform, provide compatible builds of these extensions in
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priv/sqlite_extensions/#{os}-#{arch}/.
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"""
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end
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defp platform_string! do
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case platform_string() do
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{:ok, platform} -> platform
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{:error, _os, _arch} -> raise "Unsupported OS or platform"
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end
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end
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defp platform_string do
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[arch | _rest] =
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:erlang.system_info(:system_architecture)
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|> List.to_string()
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|> String.split("-")
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{_, os} = :os.type()
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case {os, arch} do
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{:darwin, "x86_64"} -> {:ok, "darwin-amd64"}
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{:darwin, "aarch64"} -> {:ok, "darwin-arm64"}
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{:linux, "x86_64"} -> {:ok, "linux-amd64"}
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{:linux, "aarch64"} -> {:ok, "linux-arm64"}
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_ -> {:error, os, arch}
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end
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end
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def vacuum, do: query("VACUUM")
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def optimize, do: query("PRAGMA optimize")
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end
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