add seedex.gen.seed function

lib/mix/tasks/seedex.gen.seed.ex

@@ -0,0 +1,70 @@
+defmodule Mix.Tasks.Seedex.Gen.Seed do
+  use Mix.Task
+
+  import Macro, only: [underscore: 1, camelize: 1]
+  import Mix.Generator
+
+  @shortdoc "Mix task to create a new seed"
+
+  @aliases [
+    r: :repo
+  ]
+
+  @switches [
+    seeds_path: :string,
+    env: :string,
+    repo: [:string, :keep],
+  ]
+
+  @impl Mix.Task
+  def run(args) do
+    {opts, [name], _} = OptionParser.parse(args, switches: @switches, aliases: @aliases)
+
+    Mix.Task.run("app.start", [])
+
+    repo = Mix.Ecto.parse_repo(opts) |> hd
+    seeds_path = Keyword.get(opts, :seeds_path, Mix.Tasks.Seedex.Seed.default_path())
+    env = Keyword.get(opts, :env)
+
+    path = if env do
+      Path.join(seeds_path, env)
+    else
+      seeds_path
+    end
+
+    base_name = "#{underscore(name)}.exs"
+    file = Path.join(path, "#{timestamp()}_#{base_name}")
+    unless File.dir?(path), do: create_directory path
+
+    fuzzy_search(path, base_name, name)
+    fuzzy_search(seeds_path, base_name, name)
+
+    assigns = [mod: Module.concat([repo, Seeds, camelize(name)]), repo: repo]
+    create_file file, seed_template(assigns)
+  end
+
+  # Taken from ecto.gen.migration
+  defp timestamp do
+    {{y, m, d}, {hh, mm, ss}} = :calendar.universal_time()
+    "#{y}#{pad(m)}#{pad(d)}#{pad(hh)}#{pad(mm)}#{pad(ss)}"
+  end
+
+  defp pad(i) when i < 10, do: <<?0, ?0 + i>>
+  defp pad(i), do: to_string(i)
+
+  defp fuzzy_search(path, base_name, name) do
+    fuzzy_path = Path.join(path, "*_#{base_name}")
+    if Path.wildcard(fuzzy_path) != [] do
+      Mix.raise "migration can't be created, there is already a migration file with name #{name}."
+    end
+  end
+
+  embed_template :seed, """
+  defmodule <%= inspect @mod %> do
+    import Seedex
+
+    alias <%= inspect @repo %>
+
+  end
+  """
+end

lib/mix/tasks/seedex.seed.ex

@@ -63,7 +63,7 @@ defmodule Mix.Tasks.Seedex.Seed do
     |> Path.wildcard
   end
 
-  defp default_path do
+  def default_path do
     Application.get_env(:seedex, :seeds_path, "priv/repo/seeds")
   end
 end

mix.exs

@@ -19,7 +19,8 @@ defmodule Seedex.Mixfile do
 
   def application do
     [applications: applications(Mix.env),
-     description: 'Seed data generation for Ecto']
+     description: 'Seed data generation for Ecto',
+     extra_applications: [:eex]]
   end
 
   defp applications(:test), do: applications(:all) ++ [:ecto, :postgrex]

mix.lock

@@ -1,15 +1,15 @@
 %{
-  "connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], [], "hexpm"},
-  "db_connection": {:hex, :db_connection, "2.0.6", "bde2f85d047969c5b5800cb8f4b3ed6316c8cb11487afedac4aa5f93fd39abfa", [:mix], [{:connection, "~> 1.0.2", [hex: :connection, repo: "hexpm", optional: false]}], "hexpm"},
-  "decimal": {:hex, :decimal, "1.7.0", "30d6b52c88541f9a66637359ddf85016df9eb266170d53105f02e4a67e00c5aa", [:mix], [], "hexpm"},
-  "earmark": {:hex, :earmark, "1.3.2", "b840562ea3d67795ffbb5bd88940b1bed0ed9fa32834915125ea7d02e35888a5", [:mix], [], "hexpm"},
-  "ecto": {:hex, :ecto, "3.1.1", "d6677f95f1e0bd39bc3db3db6b23a59977cb154ed2cceec69a56becd805128be", [:mix], [{:decimal, "~> 1.6", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm"},
-  "ecto_sql": {:hex, :ecto_sql, "3.1.1", "af2458e7a467d75a6389e1d4ebfb57c328ccc684d6ee52145f7b34e94efb5fc4", [:mix], [{:db_connection, "~> 2.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.1.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:mariaex, "~> 0.9.1", [hex: :mariaex, repo: "hexpm", optional: true]}, {:myxql, "~> 0.2.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.14.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.20.2", "1bd0dfb0304bade58beb77f20f21ee3558cc3c753743ae0ddbb0fd7ba2912331", [:mix], [{:earmark, "~> 1.3", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
-  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm"},
+  "connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], [], "hexpm", "4a0850c9be22a43af9920a71ab17c051f5f7d45c209e40269a1938832510e4d9"},
+  "db_connection": {:hex, :db_connection, "2.0.6", "bde2f85d047969c5b5800cb8f4b3ed6316c8cb11487afedac4aa5f93fd39abfa", [:mix], [{:connection, "~> 1.0.2", [hex: :connection, repo: "hexpm", optional: false]}], "hexpm", "04687e59b683592734f9c9ff0d2a45fe13dd6d8ca39da72d30668fa73b8361b6"},
+  "decimal": {:hex, :decimal, "1.7.0", "30d6b52c88541f9a66637359ddf85016df9eb266170d53105f02e4a67e00c5aa", [:mix], [], "hexpm", "771ea78576e5fa505ad58a834f57915c7f5f9df11c87a598a01fdf6065ccfb5d"},
+  "earmark": {:hex, :earmark, "1.3.2", "b840562ea3d67795ffbb5bd88940b1bed0ed9fa32834915125ea7d02e35888a5", [:mix], [], "hexpm", "e3be2bc3ae67781db529b80aa7e7c49904a988596e2dbff897425b48b3581161"},
+  "ecto": {:hex, :ecto, "3.1.1", "d6677f95f1e0bd39bc3db3db6b23a59977cb154ed2cceec69a56becd805128be", [:mix], [{:decimal, "~> 1.6", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "c1913155dca2da1499fc221d91a8f8ba2e24c3c0b03aea0c5210bd4cefbe92bd"},
+  "ecto_sql": {:hex, :ecto_sql, "3.1.1", "af2458e7a467d75a6389e1d4ebfb57c328ccc684d6ee52145f7b34e94efb5fc4", [:mix], [{:db_connection, "~> 2.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.1.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:mariaex, "~> 0.9.1", [hex: :mariaex, repo: "hexpm", optional: true]}, {:myxql, "~> 0.2.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.14.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ea0550f1e53a244b7dcb3cf74b6abb55ed652832e35f3a40e37d5735921c4137"},
+  "ex_doc": {:hex, :ex_doc, "0.20.2", "1bd0dfb0304bade58beb77f20f21ee3558cc3c753743ae0ddbb0fd7ba2912331", [:mix], [{:earmark, "~> 1.3", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "8e24fc8ff9a50b9f557ff020d6c91a03cded7e59ac3e0eec8a27e771430c7d27"},
+  "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "5fbc8e549aa9afeea2847c0769e3970537ed302f93a23ac612602e805d9d1e7f"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "adf0218695e22caeda2820eaba703fa46c91820d53813a2223413da3ef4ba515"},
+  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm", "5c040b8469c1ff1b10093d3186e2e10dbe483cd73d79ec017993fb3985b8a9b3"},
   "poolboy": {:hex, :poolboy, "1.5.1", "6b46163901cfd0a1b43d692657ed9d7e599853b3b21b95ae5ae0a777cf9b6ca8", [:rebar], [], "hexpm"},
-  "postgrex": {:hex, :postgrex, "0.14.2", "6680591bbce28d92f043249205e8b01b36cab9ef2a7911abc43649242e1a3b78", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm"},
-  "telemetry": {:hex, :telemetry, "0.4.0", "8339bee3fa8b91cb84d14c2935f8ecf399ccd87301ad6da6b71c09553834b2ab", [:rebar3], [], "hexpm"},
+  "postgrex": {:hex, :postgrex, "0.14.2", "6680591bbce28d92f043249205e8b01b36cab9ef2a7911abc43649242e1a3b78", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "8536c4ac412708cc53f43698cea14743a2d5a547d5cdf72cea4937e36de776ef"},
+  "telemetry": {:hex, :telemetry, "0.4.0", "8339bee3fa8b91cb84d14c2935f8ecf399ccd87301ad6da6b71c09553834b2ab", [:rebar3], [], "hexpm", "e9e3cacfd37c1531c0ca70ca7c0c30ce2dbb02998a4f7719de180fe63f8d41e4"},
 }