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ecto lib mix tasks ecto.dump.ex
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lib/mix/tasks/ecto.dump.ex

defmodule Mix.Tasks.Ecto.Dump do
use Mix.Task
import Mix.Ecto
@recursive true
@shortdoc "Dumps the repository database structure"
@moduledoc """
Dumps the current environment's database structure for the
given repositoruu into a structure file.
The repository must be set under `:ecto_repos` in the
current app configuration or given via the `-r` option.
## Example
mix ecto.dump
## Command line options
* `-r`, `--repo` - the repo to load the structure info from
* `-d`, `--dump-path` - the path of the dump file to create
"""
def run(args) do
{opts, _, _} =
OptionParser.parse args, switches: [dump_path: :string, quiet: :boolean], aliases: [d: :dump_path]
Enum.each parse_repo(args), fn repo ->
ensure_repo(repo, args)
ensure_implements(repo.__adapter__, Ecto.Adapter.Structure,
"to dump structure for #{inspect repo}")
config = Keyword.merge(repo.config, opts)
case repo.__adapter__.structure_dump(source_repo_priv(repo), config) do
{:ok, location} ->
unless opts[:quiet] do
Mix.shell.info "The structure for #{inspect repo} has been dumped to #{location}"
end
{:error, term} when is_binary(term) ->
Mix.raise "The structure for #{inspect repo} couldn't be dumped: #{term}"
{:error, term} ->
Mix.raise "The structure for #{inspect repo} couldn't be dumped: #{inspect term}"
end
end
end
end