From 888eeb3356842d2af4e415359e2eb460016b76b6 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sat, 14 Jul 2018 13:05:18 +0200
Subject: [PATCH 01/16] Bump version to 0.1.2-dev

---
 mix.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index 9161ea5..b228959 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule TypedStruct.MixProject do
   use Mix.Project
 
-  @version "0.1.1"
+  @version "0.1.2-dev"
   @repo_url "https://github.com/ejpcmac/typed_struct"
 
   def project do

From 0015bde2fcd9afa5b1776df452e17ffc5c4a94c8 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sat, 14 Jul 2018 13:07:09 +0200
Subject: [PATCH 02/16] Make Credo and Dialyxir dev-only dependencies

---
 mix.exs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mix.exs b/mix.exs
index b228959..d47d651 100644
--- a/mix.exs
+++ b/mix.exs
@@ -47,8 +47,8 @@ defmodule TypedStruct.MixProject do
   defp deps do
     [
       # Development and test dependencies
-      {:credo, "~> 0.9.3", only: [:dev, :test], runtime: false},
-      {:dialyxir, ">= 0.0.0", only: [:dev, :test], runtime: false},
+      {:credo, "~> 0.9.3", only: :dev, runtime: false},
+      {:dialyxir, ">= 0.0.0", only: :dev, runtime: false},
       {:excoveralls, ">= 0.0.0", only: :test, runtime: false},
       {:mix_test_watch, ">= 0.0.0", only: :dev, runtime: false},
       {:ex_unit_notifier, ">= 0.0.0", only: :test, runtime: false},

From 8b32fd8b7b43b169cd15f92bc20e82c9f6737043 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sat, 14 Jul 2018 13:08:11 +0200
Subject: [PATCH 03/16] =?UTF-8?q?Remove=20the=20maintainers=20field=20sinc?=
 =?UTF-8?q?e=20it=E2=80=99s=20deprecated?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 mix.exs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index d47d651..392d21b 100644
--- a/mix.exs
+++ b/mix.exs
@@ -84,7 +84,6 @@ defmodule TypedStruct.MixProject do
 
   defp package do
     [
-      maintainers: ["Jean-Philippe Cugnet"],
       licenses: ["MIT"],
       links: %{"GitHub" => @repo_url}
     ]

From c2a75fd93226b135f21b48c89ec0675387fbacbc Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sat, 14 Jul 2018 13:08:45 +0200
Subject: [PATCH 04/16] Update dependencies

---
 mix.lock | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mix.lock b/mix.lock
index eefa49f..d07a77b 100644
--- a/mix.lock
+++ b/mix.lock
@@ -4,13 +4,13 @@
   "credo": {:hex, :credo, "0.9.3", "76fa3e9e497ab282e0cf64b98a624aa11da702854c52c82db1bf24e54ab7c97a", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:poison, ">= 0.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
   "earmark": {:hex, :earmark, "1.2.5", "4d21980d5d2862a2e13ec3c49ad9ad783ffc7ca5769cf6ff891a4553fbaae761", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.18.3", "f4b0e4a2ec6f333dccf761838a4b253d75e11f714b85ae271c9ae361367897b7", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.18.4", "4406b8891cecf1352f49975c6d554e62e4341ceb41b9338949077b0d4a97b949", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_unit_notifier": {:hex, :ex_unit_notifier, "0.1.4", "36a2dcab829f506e01bf17816590680dd1474407926d43e64c1263e627c364b8", [:mix], [], "hexpm"},
   "excoveralls": {:hex, :excoveralls, "0.9.1", "14fd20fac51ab98d8e79615814cc9811888d2d7b28e85aa90ff2e30dcf3191d6", [:mix], [{:hackney, ">= 0.12.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
-  "file_system": {:hex, :file_system, "0.2.5", "a3060f063b116daf56c044c273f65202e36f75ec42e678dc10653056d3366054", [:mix], [], "hexpm"},
-  "hackney": {:hex, :hackney, "1.12.1", "8bf2d0e11e722e533903fe126e14d6e7e94d9b7983ced595b75f532e04b7fdc7", [:rebar3], [{:certifi, "2.3.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.1", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
-  "idna": {:hex, :idna, "5.1.1", "cbc3b2fa1645113267cc59c760bafa64b2ea0334635ef06dbac8801e42f7279c", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
-  "jason": {:hex, :jason, "1.0.0", "0f7cfa9bdb23fed721ec05419bcee2b2c21a77e926bce0deda029b5adc716fe2", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
+  "file_system": {:hex, :file_system, "0.2.6", "fd4dc3af89b9ab1dc8ccbcc214a0e60c41f34be251d9307920748a14bf41f1d3", [:mix], [], "hexpm"},
+  "hackney": {:hex, :hackney, "1.13.0", "24edc8cd2b28e1c652593833862435c80661834f6c9344e84b6a2255e7aeef03", [:rebar3], [{:certifi, "2.3.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.2", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
+  "idna": {:hex, :idna, "5.1.2", "e21cb58a09f0228a9e0b95eaa1217f1bcfc31a1aaa6e1fdf2f53a33f7dbd9494", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
+  "jason": {:hex, :jason, "1.1.1", "d3ccb840dfb06f2f90a6d335b536dd074db748b3e7f5b11ab61d239506585eb2", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], [], "hexpm"},
   "mix_test_watch": {:hex, :mix_test_watch, "0.6.0", "5e206ed04860555a455de2983937efd3ce79f42bd8536fc6b900cc286f5bb830", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm"},

From 60c16985181e0967992ab74d7effe9427099cd71 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sat, 14 Jul 2018 13:17:11 +0200
Subject: [PATCH 05/16] Update the tests to handle the Elixir 1.7 Typespec API

---
 test/typed_struct_test.exs | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/test/typed_struct_test.exs b/test/typed_struct_test.exs
index 7b2c758..278f7b1 100644
--- a/test/typed_struct_test.exs
+++ b/test/typed_struct_test.exs
@@ -118,11 +118,27 @@ defmodule TypedStructTest do
   ## Helpers
   ##
 
+  @elixir_version System.version() |> Version.parse!()
+  @min_version Version.parse!("1.7.0-rc")
+
   # Extracts the first type from a module.
-  defp extract_first_type(bytecode) do
-    bytecode
-    |> Kernel.Typespec.beam_types()
-    |> Keyword.get(:type)
+  # NOTE: We define the function differently depending on the Elixir version to
+  # avoid compiler warnings.
+  if Version.compare(@elixir_version, @min_version) == :lt do
+    # API for Elixir 1.6 (TODO: Remove when 1.6 compatibility is dropped.)
+    defp extract_first_type(bytecode) do
+      bytecode
+      |> Kernel.Typespec.beam_types()
+      |> Keyword.get(:type)
+    end
+  else
+    # API for Elixir 1.7
+    defp extract_first_type(bytecode) do
+      case Code.Typespec.fetch_types(bytecode) do
+        {:ok, types} -> Keyword.get(types, :type)
+        _ -> nil
+      end
+    end
   end
 
   # Standardises a type (removes line numbers and renames the struct).

From 267783a26f47cd9c0d9a0832a04fabaeb632d540 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Thu, 26 Jul 2018 23:12:46 +0200
Subject: [PATCH 06/16] Update dependencies (incl. ex_doc for Elixir 1.7)

---
 mix.lock | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/mix.lock b/mix.lock
index d07a77b..96a7b6b 100644
--- a/mix.lock
+++ b/mix.lock
@@ -4,16 +4,19 @@
   "credo": {:hex, :credo, "0.9.3", "76fa3e9e497ab282e0cf64b98a624aa11da702854c52c82db1bf24e54ab7c97a", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:poison, ">= 0.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
   "earmark": {:hex, :earmark, "1.2.5", "4d21980d5d2862a2e13ec3c49ad9ad783ffc7ca5769cf6ff891a4553fbaae761", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.18.4", "4406b8891cecf1352f49975c6d554e62e4341ceb41b9338949077b0d4a97b949", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.19.0", "e22b6434373b4870ea77b24df069dbac7002c1f483615e9ebfc0c37497e1c75c", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_unit_notifier": {:hex, :ex_unit_notifier, "0.1.4", "36a2dcab829f506e01bf17816590680dd1474407926d43e64c1263e627c364b8", [:mix], [], "hexpm"},
   "excoveralls": {:hex, :excoveralls, "0.9.1", "14fd20fac51ab98d8e79615814cc9811888d2d7b28e85aa90ff2e30dcf3191d6", [:mix], [{:hackney, ">= 0.12.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "file_system": {:hex, :file_system, "0.2.6", "fd4dc3af89b9ab1dc8ccbcc214a0e60c41f34be251d9307920748a14bf41f1d3", [:mix], [], "hexpm"},
   "hackney": {:hex, :hackney, "1.13.0", "24edc8cd2b28e1c652593833862435c80661834f6c9344e84b6a2255e7aeef03", [:rebar3], [{:certifi, "2.3.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.2", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
   "idna": {:hex, :idna, "5.1.2", "e21cb58a09f0228a9e0b95eaa1217f1bcfc31a1aaa6e1fdf2f53a33f7dbd9494", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
   "jason": {:hex, :jason, "1.1.1", "d3ccb840dfb06f2f90a6d335b536dd074db748b3e7f5b11ab61d239506585eb2", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
+  "makeup": {:hex, :makeup, "0.5.1", "966c5c2296da272d42f1de178c1d135e432662eca795d6dc12e5e8787514edf7", [:mix], [{:nimble_parsec, "~> 0.2.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.8.0", "1204a2f5b4f181775a0e456154830524cf2207cf4f9112215c05e0b76e4eca8b", [:mix], [{:makeup, "~> 0.5.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 0.2.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], [], "hexpm"},
-  "mix_test_watch": {:hex, :mix_test_watch, "0.6.0", "5e206ed04860555a455de2983937efd3ce79f42bd8536fc6b900cc286f5bb830", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm"},
+  "mix_test_watch": {:hex, :mix_test_watch, "0.7.0", "205f77063ed9b81ca41a2ab78486c653f9bfb1e5a341b5cf8fc2747dae67b0df", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm"},
+  "nimble_parsec": {:hex, :nimble_parsec, "0.2.2", "d526b23bdceb04c7ad15b33c57c4526bf5f50aaa70c7c141b4b4624555c68259", [:mix], [], "hexpm"},
   "parse_trans": {:hex, :parse_trans, "3.2.0", "2adfa4daf80c14dc36f522cf190eb5c4ee3e28008fc6394397c16f62a26258c2", [:rebar3], [], "hexpm"},
   "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], [], "hexpm"},

From 64b2c6aaec858b62cf4d8262ee5e686d98861ef9 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Thu, 16 Aug 2018 12:50:22 +0200
Subject: [PATCH 07/16] Do not use `runtime: false` by default in the docs

Using `runtime: false` prevents to define a module using TypedStruct
at runtime. Fixes #4.
---
 README.md           | 2 +-
 lib/typed_struct.ex | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 3bc335c..fc19a1d 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,7 @@ Thanks to TypedStruct, this is now possible :)
 To use TypedStruct in your project, add this to you Mix dependencies:
 
 ```elixir
-{:typed_struct, "~> 0.1.1", runtime: false}
+{:typed_struct, "~> 0.1.1"}
 ```
 
 If you want to avoid `mix format` putting parentheses on field definitions,
diff --git a/lib/typed_struct.ex b/lib/typed_struct.ex
index fb828ce..b869fa9 100644
--- a/lib/typed_struct.ex
+++ b/lib/typed_struct.ex
@@ -75,7 +75,7 @@ defmodule TypedStruct do
 
   To use TypedStruct in your project, add this to you Mix dependencies:
 
-      {:typed_struct, "~> #{Mix.Project.config()[:version]}", runtime: false}
+      {:typed_struct, "~> #{Mix.Project.config()[:version]}"}
 
   If you want to avoid `mix format` putting parentheses on field definitions,
   you can write in your `.formatter.exs`:

From 33f35ae77728ee6fb8cc2b1a62a8940fe84b71cb Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Tue, 4 Sep 2018 20:06:58 +0200
Subject: [PATCH 08/16] Clarify a bit the documentation about `runtime: false`

---
 README.md           |  4 ++++
 lib/typed_struct.ex | 10 +++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index fc19a1d..3b9e713 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,10 @@ To use TypedStruct in your project, add this to you Mix dependencies:
 {:typed_struct, "~> 0.1.1"}
 ```
 
+If you do not plan to compile modules using TypedStruct at runtime, you can add
+`runtime: false` to the dependency tuple as TypedStruct is only used during
+compilation.
+
 If you want to avoid `mix format` putting parentheses on field definitions,
 you can write in your `.formatter.exs`:
 
diff --git a/lib/typed_struct.ex b/lib/typed_struct.ex
index b869fa9..1936443 100644
--- a/lib/typed_struct.ex
+++ b/lib/typed_struct.ex
@@ -77,6 +77,10 @@ defmodule TypedStruct do
 
       {:typed_struct, "~> #{Mix.Project.config()[:version]}"}
 
+  If you do not plan to compile modules using TypedStruct at runtime, you can
+  add `runtime: false` to the dependency tuple as TypedStruct is only used
+  during compilation.
+
   If you want to avoid `mix format` putting parentheses on field definitions,
   you can write in your `.formatter.exs`:
 
@@ -219,9 +223,9 @@ defmodule TypedStruct do
       @enforce_keys [:name]
       defstruct name: nil
 
-  In both cases, the type has no reason to be nullable anymore by default. In one
-  case the field is filled with its default value and not `nil`, and in the other
-  case it is enforced. Both options would generate the following type:
+  In both cases, the type has no reason to be nullable anymore by default. In
+  one case the field is filled with its default value and not `nil`, and in the
+  other case it is enforced. Both options would generate the following type:
 
       @type t() :: %__MODULE__{
             name: String.t() # Not nullable

From 98f983eb9c87dd1ba90f7c88c2d66aab2d05802e Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Tue, 4 Sep 2018 20:09:34 +0200
Subject: [PATCH 09/16] Use Nix to manage the development environment

---
 .envrc     | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 .gitignore | 27 +++++++++++++++---
 shell.nix  | 49 +++++++++++++++++++++++++++++++
 3 files changed, 156 insertions(+), 4 deletions(-)
 create mode 100644 .envrc
 create mode 100644 shell.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..e2e9592
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,84 @@
+####################################
+# Environment setup for Nix shells #
+####################################
+
+# From https://github.com/direnv/direnv/wiki/Nix#persistent-cached-shell
+#
+# Usage: use_nix [...]
+#
+# Load environment variables from `nix-shell`.
+# If you have a `default.nix` or `shell.nix` one of these will be used and
+# the derived environment will be stored at ./.direnv/env-<hash>
+# and symlink to it will be created at ./.direnv/default.
+# Dependencies are added to the GC roots, such that the environment remains persistent.
+#
+# Packages can also be specified directly via e.g `use nix -p ocaml`,
+# however those will not be added to the GC roots.
+#
+# The resulting environment is cached for better performance.
+#
+# To trigger switch to a different environment:
+# `rm -f .direnv/default`
+#
+# To derive a new environment:
+# `rm -rf .direnv/env-$(md5sum {shell,default}.nix 2> /dev/null | cut -c -32)`
+#
+# To remove cache:
+# `rm -f .direnv/dump-*`
+#
+# To remove all environments:
+# `rm -rf .direnv/env-*`
+#
+# To remove only old environments:
+# `find .direnv -name 'env-*' -and -not -name `readlink .direnv/default` -exec rm -rf {} +`
+#
+use_nix() {
+    set -e
+
+    local shell="shell.nix"
+    if [[ ! -f "${shell}" ]]; then
+        shell="default.nix"
+    fi
+
+    if [[ ! -f "${shell}" ]]; then
+        fail "use nix: shell.nix or default.nix not found in the folder"
+    fi
+
+    local dir="${PWD}"/.direnv
+    local default="${dir}/default"
+    if [[ ! -L "${default}" ]] || [[ ! -d `readlink "${default}"` ]]; then
+        local wd="${dir}/env-`md5sum "${shell}" | cut -c -32`" # TODO: Hash also the nixpkgs version?
+        mkdir -p "${wd}"
+
+        local drv="${wd}/env.drv"
+        if [[ ! -f "${drv}" ]]; then
+            log_status "use nix: deriving new environment"
+            IN_NIX_SHELL=1 nix-instantiate --add-root "${drv}" --indirect "${shell}" > /dev/null
+            nix-store -r `nix-store --query --references "${drv}"` --add-root "${wd}/dep" --indirect > /dev/null
+        fi
+
+        rm -f "${default}"
+        ln -s `basename "${wd}"` "${default}"
+    fi
+
+    local drv=`readlink -f "${default}/env.drv"`
+    local dump="${dir}/dump-`md5sum ".envrc" | cut -c -32`-`md5sum ${drv} | cut -c -32`"
+
+    if [[ ! -f "${dump}" ]] || [[ "${XDG_CONFIG_DIR}/direnv/direnvrc" -nt "${dump}" ]]; then
+        log_status "use nix: updating cache"
+
+        old=`find ${dir} -name 'dump-*'`
+        nix-shell "${drv}" --show-trace "$@" --run 'direnv dump' > "${dump}"
+        rm -f ${old}
+    fi
+
+    direnv_load cat "${dump}"
+
+    watch_file "${default}"
+    watch_file shell.nix
+    if [[ ${shell} == "default.nix" ]]; then
+        watch_file default.nix
+    fi
+}
+
+use nix
diff --git a/.gitignore b/.gitignore
index 0e20bb6..3d10eed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,18 +1,37 @@
-# Application artifacts (Elixir)
+##
+## Application artifacts
+##
+
+# direnv cache for Nix shells
+/.direnv/
+
+# Elixir build directory
 /_build/
+
+# Elixir dependencies
 /deps/
 /.fetch
+
+# Elixir binary files
 *.beam
 *.ez
-typed_struct-*.tar
+/typed_struct-*.tar
+/typed_struct
 
 # Test coverage and documentation
 /cover/
 /doc/
 
-# Editor artifacts
+##
+## Editor artifacts
+##
+
 /.elixir_ls/
 /.history/
 
-# Crash dumps
+##
+## Crash dumps
+##
+
+# Erang VM
 erl_crash.dump
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..b87fb41
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,49 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+with pkgs;
+
+let
+  inherit (lib) optional optionals;
+
+  erlangDrv = { mkDerivation }:
+    mkDerivation rec {
+      version = "21.0";
+      # Use `nix-prefetch-github --rev OTP-<version> erlang otp` to update.
+      sha256 = "0khprgawmbdpn9b8jw2kksmvs6b45mibpjralsc0ggxym1397vm8";
+
+      prePatch = ''
+        substituteInPlace configure.in --replace '`sw_vers -productVersion`' '10.10'
+      '';
+    };
+
+  elixirDrv = { mkDerivation }:
+    mkDerivation rec {
+      version = "1.7.3";
+      # Use `nix-prefetch-github --rev v<version> elixir-lang elixir` to update.
+      sha256 = "0d7rj4khmvy76z12njzwzknm1j9rhjadgj9k1chjd4gnjffkb1aa";
+      minimumOTPVersion = "19";
+    };
+
+  erlang = (beam.lib.callErlang erlangDrv { wxGTK = wxGTK30; }).override {
+    # Temporary fix to enable use on OS X El Capitan.
+    enableKernelPoll = if stdenv.isDarwin then false else true;
+  };
+
+  rebar = pkgs.rebar.override { inherit erlang; };
+
+  elixir = beam.lib.callElixir elixirDrv {
+    inherit erlang rebar;
+    debugInfo = true;
+  };
+in
+
+mkShell {
+  buildInputs = [ elixir git ]
+    ++ optional stdenv.isLinux libnotify # For ExUnit Notifier on Linux.
+    ++ optional stdenv.isDarwin terminal-notifier # For ExUnit Notifier on macOS.
+    ++ optionals stdenv.isDarwin (with darwin.apple_sdk.frameworks; [
+      # For file_system on macOS.
+      CoreFoundation
+      CoreServices
+    ]);
+}

From 74d0bf3a9420bb94806a9e2947c6345c78316b0d Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Tue, 4 Sep 2018 20:13:01 +0200
Subject: [PATCH 10/16] Update dependencies

---
 .credo.exs |  7 ++++---
 mix.exs    |  4 ++--
 mix.lock   | 11 +++++------
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/.credo.exs b/.credo.exs
index ab6b967..c966f58 100644
--- a/.credo.exs
+++ b/.credo.exs
@@ -21,8 +21,8 @@
         # You can give explicit globs or simply directories.
         # In the latter case `**/*.{ex,exs}` will be used.
         #
-        included: ["lib/", "test/"],
-        excluded: [~r"/_build/", ~r"/deps/"]
+        included: ["lib/", "src/", "test/", "web/", "apps/"],
+        excluded: [~r"/_build/", ~r"/deps/", ~r"/node_modules/"]
       },
       #
       # If you create your own checks, you must specify the source files for
@@ -72,7 +72,6 @@
         # set the `excluded_macros` parameter to `[:schema, :setup, :test]`.
         #
         {Credo.Check.Design.DuplicatedCode, excluded_macros: []},
-
         # You can also customize the exit_status of each check.
         # If you don't want TODO comments to cause `mix credo` to fail, just
         # set this value to 0 (zero).
@@ -83,6 +82,7 @@
         #
         ## Readability Checks
         #
+        {Credo.Check.Readability.AliasOrder},
         {Credo.Check.Readability.FunctionNames},
         {Credo.Check.Readability.LargeNumbers},
         {Credo.Check.Readability.MaxLineLength, priority: :low, max_length: 80},
@@ -109,6 +109,7 @@
         {Credo.Check.Refactor.CyclomaticComplexity},
         {Credo.Check.Refactor.FunctionArity},
         {Credo.Check.Refactor.LongQuoteBlocks},
+        {Credo.Check.Refactor.MapInto},
         {Credo.Check.Refactor.MatchInCondition},
         {Credo.Check.Refactor.NegatedConditionsInUnless},
         {Credo.Check.Refactor.NegatedConditionsWithElse},
diff --git a/mix.exs b/mix.exs
index 392d21b..8c0d398 100644
--- a/mix.exs
+++ b/mix.exs
@@ -47,7 +47,7 @@ defmodule TypedStruct.MixProject do
   defp deps do
     [
       # Development and test dependencies
-      {:credo, "~> 0.9.3", only: :dev, runtime: false},
+      {:credo, "~> 0.10.0", only: :dev, runtime: false},
       {:dialyxir, ">= 0.0.0", only: :dev, runtime: false},
       {:excoveralls, ">= 0.0.0", only: :test, runtime: false},
       {:mix_test_watch, ">= 0.0.0", only: :dev, runtime: false},
@@ -56,7 +56,7 @@ defmodule TypedStruct.MixProject do
       # Project dependencies
 
       # Documentation dependencies
-      {:ex_doc, ">= 0.0.0", only: :dev, runtime: false}
+      {:ex_doc, "~> 0.19", only: :dev, runtime: false}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index 96a7b6b..03f7b4a 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,12 +1,12 @@
 %{
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm"},
   "certifi": {:hex, :certifi, "2.3.1", "d0f424232390bf47d82da8478022301c561cf6445b5b5fb6a84d49a9e76d2639", [:rebar3], [{:parse_trans, "3.2.0", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
-  "credo": {:hex, :credo, "0.9.3", "76fa3e9e497ab282e0cf64b98a624aa11da702854c52c82db1bf24e54ab7c97a", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:poison, ">= 0.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
+  "credo": {:hex, :credo, "0.10.0", "66234a95effaf9067edb19fc5d0cd5c6b461ad841baac42467afed96c78e5e9e", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
-  "earmark": {:hex, :earmark, "1.2.5", "4d21980d5d2862a2e13ec3c49ad9ad783ffc7ca5769cf6ff891a4553fbaae761", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.19.0", "e22b6434373b4870ea77b24df069dbac7002c1f483615e9ebfc0c37497e1c75c", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
+  "earmark": {:hex, :earmark, "1.2.6", "b6da42b3831458d3ecc57314dff3051b080b9b2be88c2e5aa41cd642a5b044ed", [:mix], [], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_unit_notifier": {:hex, :ex_unit_notifier, "0.1.4", "36a2dcab829f506e01bf17816590680dd1474407926d43e64c1263e627c364b8", [:mix], [], "hexpm"},
-  "excoveralls": {:hex, :excoveralls, "0.9.1", "14fd20fac51ab98d8e79615814cc9811888d2d7b28e85aa90ff2e30dcf3191d6", [:mix], [{:hackney, ">= 0.12.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
+  "excoveralls": {:hex, :excoveralls, "0.10.0", "a4508bdd408829f38e7b2519f234b7fd5c83846099cda348efcb5291b081200c", [:mix], [{:hackney, "~> 1.13", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "file_system": {:hex, :file_system, "0.2.6", "fd4dc3af89b9ab1dc8ccbcc214a0e60c41f34be251d9307920748a14bf41f1d3", [:mix], [], "hexpm"},
   "hackney": {:hex, :hackney, "1.13.0", "24edc8cd2b28e1c652593833862435c80661834f6c9344e84b6a2255e7aeef03", [:rebar3], [{:certifi, "2.3.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.2", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
   "idna": {:hex, :idna, "5.1.2", "e21cb58a09f0228a9e0b95eaa1217f1bcfc31a1aaa6e1fdf2f53a33f7dbd9494", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
@@ -15,10 +15,9 @@
   "makeup_elixir": {:hex, :makeup_elixir, "0.8.0", "1204a2f5b4f181775a0e456154830524cf2207cf4f9112215c05e0b76e4eca8b", [:mix], [{:makeup, "~> 0.5.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 0.2.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], [], "hexpm"},
-  "mix_test_watch": {:hex, :mix_test_watch, "0.7.0", "205f77063ed9b81ca41a2ab78486c653f9bfb1e5a341b5cf8fc2747dae67b0df", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm"},
+  "mix_test_watch": {:hex, :mix_test_watch, "0.8.0", "acf97da2abc66532e7dc1aa66a5d6c9fc4442d7992d5d7eb4faeaeb964c2580e", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm"},
   "nimble_parsec": {:hex, :nimble_parsec, "0.2.2", "d526b23bdceb04c7ad15b33c57c4526bf5f50aaa70c7c141b4b4624555c68259", [:mix], [], "hexpm"},
   "parse_trans": {:hex, :parse_trans, "3.2.0", "2adfa4daf80c14dc36f522cf190eb5c4ee3e28008fc6394397c16f62a26258c2", [:rebar3], [], "hexpm"},
-  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], [], "hexpm"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [:rebar3], [], "hexpm"},
 }

From feddbb484eb004f6319665eebed023ad830d5257 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Tue, 4 Sep 2018 21:54:40 +0200
Subject: [PATCH 11/16] Simplify the shell.nix

---
 shell.nix | 28 ++--------------------------
 1 file changed, 2 insertions(+), 26 deletions(-)

diff --git a/shell.nix b/shell.nix
index b87fb41..ac33355 100644
--- a/shell.nix
+++ b/shell.nix
@@ -5,36 +5,12 @@ with pkgs;
 let
   inherit (lib) optional optionals;
 
-  erlangDrv = { mkDerivation }:
-    mkDerivation rec {
-      version = "21.0";
-      # Use `nix-prefetch-github --rev OTP-<version> erlang otp` to update.
-      sha256 = "0khprgawmbdpn9b8jw2kksmvs6b45mibpjralsc0ggxym1397vm8";
-
-      prePatch = ''
-        substituteInPlace configure.in --replace '`sw_vers -productVersion`' '10.10'
-      '';
-    };
-
-  elixirDrv = { mkDerivation }:
-    mkDerivation rec {
-      version = "1.7.3";
-      # Use `nix-prefetch-github --rev v<version> elixir-lang elixir` to update.
-      sha256 = "0d7rj4khmvy76z12njzwzknm1j9rhjadgj9k1chjd4gnjffkb1aa";
-      minimumOTPVersion = "19";
-    };
-
-  erlang = (beam.lib.callErlang erlangDrv { wxGTK = wxGTK30; }).override {
+  erlang = beam.interpreters.erlangR21.override {
     # Temporary fix to enable use on OS X El Capitan.
     enableKernelPoll = if stdenv.isDarwin then false else true;
   };
 
-  rebar = pkgs.rebar.override { inherit erlang; };
-
-  elixir = beam.lib.callElixir elixirDrv {
-    inherit erlang rebar;
-    debugInfo = true;
-  };
+  elixir = (beam.packages.erlangR21.override { inherit erlang; }).elixir_1_7;
 in
 
 mkShell {

From b8a6a348c1ce367e8745d70266288fb6d5f7138f Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Wed, 5 Sep 2018 20:17:12 +0200
Subject: [PATCH 12/16] Add the ability to enforce keys by default (#6)

---
 README.md                  | 20 ++++++++++++
 lib/typed_struct.ex        | 62 ++++++++++++++++++++++++++++++++++++--
 test/typed_struct_test.exs | 24 +++++++++++++++
 3 files changed, 103 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 3b9e713..1c0bdff 100644
--- a/README.md
+++ b/README.md
@@ -123,6 +123,26 @@ end
 
 Each field is defined through the `field/2` macro.
 
+If you want to enforce all the keys by default, you can do:
+
+```elixir
+defmodule MyStruct do
+  use TypedStruct
+
+  # Enforce keys by default.
+  typedstruct enforce: true do
+    # This key is enforced.
+    field :enforced_by_default, term()
+
+    # You can override the default behaviour.
+    field :not_enforced, term(), enforce: false
+
+    # A key with a default value is not enforced.
+    field :not_enforced_either, integer(), default: 1
+  end
+end
+```
+
 ### Documentation
 
 To add a `@typedoc` to the struct type, just add the attribute above the
diff --git a/lib/typed_struct.ex b/lib/typed_struct.ex
index 1936443..965e0b3 100644
--- a/lib/typed_struct.ex
+++ b/lib/typed_struct.ex
@@ -112,6 +112,24 @@ defmodule TypedStruct do
 
   Each field is defined through the `field/2` macro.
 
+  If you want to enforce all the keys by default, you can do:
+
+      defmodule MyStruct do
+        use TypedStruct
+
+        # Enforce keys by default.
+        typedstruct enforce: true do
+          # This key is enforced.
+          field :enforced_by_default, term()
+
+          # You can override the default behaviour.
+          field :not_enforced, term(), enforce: false
+
+          # A key with a default value is not enforced.
+          field :not_enforced_either, integer(), default: 1
+        end
+      end
+
   ### Documentation
 
   To add a `@typedoc` to the struct type, just add the attribute above the
@@ -235,7 +253,7 @@ defmodule TypedStruct do
   @doc false
   defmacro __using__(_) do
     quote do
-      import TypedStruct, only: [typedstruct: 1]
+      import TypedStruct, only: [typedstruct: 1, typedstruct: 2]
     end
   end
 
@@ -244,12 +262,45 @@ defmodule TypedStruct do
 
   Inside a `typedstruct` block, each field is defined through the `field/2`
   macro.
+
+  ## Options
+
+    * `enforce` - if set to true, sets `enforce: true` to all fields by default.
+      This can be overridden by setting `enforce: false` or a default value on
+      individual fields.
+
+  ## Examples
+
+      defmodule MyStruct do
+        use TypedStruct
+
+        typedstruct do
+          field :field_one, String.t()
+          field :field_two, integer(), enforce: true
+          field :field_three, boolean(), enforce: true
+          field :field_four, atom(), default: :hey
+        end
+      end
+
+  This is the same as writing:
+
+      defmodule MyStruct do
+        use TypedStruct
+
+        typedstruct enforce: true do
+          field :field_one, String.t(), enforce: false
+          field :field_two, integer()
+          field :field_three, boolean()
+          field :field_four, atom(), default: :hey
+        end
+      end
   """
-  defmacro typedstruct(do: block) do
+  defmacro typedstruct(opts \\ [], do: block) do
     quote do
       Module.register_attribute(__MODULE__, :fields, accumulate: true)
       Module.register_attribute(__MODULE__, :types, accumulate: true)
       Module.register_attribute(__MODULE__, :keys_to_enforce, accumulate: true)
+      Module.put_attribute(__MODULE__, :enforce?, unquote(!!opts[:enforce]))
 
       import TypedStruct
       unquote(block)
@@ -301,7 +352,12 @@ defmodule TypedStruct do
     end
 
     default = opts[:default]
-    enforce? = !!opts[:enforce]
+
+    enforce? =
+      if is_nil(opts[:enforce]),
+        do: Module.get_attribute(mod, :enforce?) && !default,
+        else: !!opts[:enforce]
+
     nullable? = !default && !enforce?
 
     Module.put_attribute(mod, :fields, {name, default})
diff --git a/test/typed_struct_test.exs b/test/typed_struct_test.exs
index 278f7b1..6bfb557 100644
--- a/test/typed_struct_test.exs
+++ b/test/typed_struct_test.exs
@@ -16,6 +16,18 @@ defmodule TypedStructTest do
       def enforce_keys, do: @enforce_keys
     end
 
+  defmodule EnforcedTypedStruct do
+    use TypedStruct
+
+    typedstruct enforce: true do
+      field :enforced_by_default, term()
+      field :not_enforced, term(), enforce: false
+      field :with_default, integer(), default: 1
+    end
+
+    def enforce_keys, do: @enforce_keys
+  end
+
   @bytecode bytecode
 
   ## Standard cases
@@ -33,6 +45,18 @@ defmodule TypedStructTest do
     assert TestStruct.enforce_keys() == [:mandatory_int]
   end
 
+  test "enforces keys by default if `enforce: true` is set at top-level" do
+    assert :enforced_by_default in EnforcedTypedStruct.enforce_keys()
+  end
+
+  test "does not enforce keys for fields explicitely setting `enforce: false" do
+    refute :not_enforced in EnforcedTypedStruct.enforce_keys()
+  end
+
+  test "does not enforce keys for fields with a default value" do
+    refute :with_default in EnforcedTypedStruct.enforce_keys()
+  end
+
   test "generates a type for the struct" do
     # Define a second struct with the type expected for TestStruct.
     {:module, _name, bytecode2, _exports} =

From 6b3223f17aff1601f1e38980ca94522aef88a4ec Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Wed, 5 Sep 2018 20:19:15 +0200
Subject: [PATCH 13/16] Documentation corrections

---
 README.md           | 15 ++++++++-------
 lib/typed_struct.ex | 15 ++++++++-------
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/README.md b/README.md
index 1c0bdff..a4bc4df 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Thanks to TypedStruct, this is now possible :)
 
 ### Setup
 
-To use TypedStruct in your project, add this to you Mix dependencies:
+To use TypedStruct in your project, add this to your Mix dependencies:
 
 ```elixir
 {:typed_struct, "~> 0.1.1"}
@@ -89,10 +89,11 @@ If you do not plan to compile modules using TypedStruct at runtime, you can add
 compilation.
 
 If you want to avoid `mix format` putting parentheses on field definitions,
-you can write in your `.formatter.exs`:
+you can add to your `.formatter.exs`:
 
 ```elixir
 [
+  ...,
   import_deps: [:typed_struct]
 ]
 ```
@@ -104,18 +105,18 @@ To define a typed struct, use `TypedStruct`, then define your struct within a
 
 ```elixir
 defmodule MyStruct do
-  # Use TypedStruct to import the typedstruct macro
+  # Use TypedStruct to import the typedstruct macro.
   use TypedStruct
 
-  # Define your struct
+  # Define your struct.
   typedstruct do
-    # Define each field with the field macro
+    # Define each field with the field macro.
     field :a_string, String.t()
 
-    # You can set a default value
+    # You can set a default value.
     field :string_with_default, String.t(), default: "default"
 
-    # You can enforce a field
+    # You can enforce a field.
     field :enforced_field, integer(), enforce: true
   end
 end
diff --git a/lib/typed_struct.ex b/lib/typed_struct.ex
index 965e0b3..bd8876a 100644
--- a/lib/typed_struct.ex
+++ b/lib/typed_struct.ex
@@ -73,7 +73,7 @@ defmodule TypedStruct do
 
   ### Setup
 
-  To use TypedStruct in your project, add this to you Mix dependencies:
+  To use TypedStruct in your project, add this to your Mix dependencies:
 
       {:typed_struct, "~> #{Mix.Project.config()[:version]}"}
 
@@ -82,9 +82,10 @@ defmodule TypedStruct do
   during compilation.
 
   If you want to avoid `mix format` putting parentheses on field definitions,
-  you can write in your `.formatter.exs`:
+  you can add to your `.formatter.exs`:
 
       [
+        ...,
         import_deps: [:typed_struct]
       ]
 
@@ -94,18 +95,18 @@ defmodule TypedStruct do
   `typedstruct` block:
 
       defmodule MyStruct do
-        # Use TypedStruct to import the typedstruct macro
+        # Use TypedStruct to import the typedstruct macro.
         use TypedStruct
 
-        # Define your struct
+        # Define your struct.
         typedstruct do
-          # Define each field with the field macro
+          # Define each field with the field macro.
           field :a_string, String.t()
 
-          # You can set a default value
+          # You can set a default value.
           field :string_with_default, String.t(), default: "default"
 
-          # You can enforce a field
+          # You can enforce a field.
           field :enforced_field, integer(), enforce: true
         end
       end

From 70a2705fae2163965327127ad54ee34ca1b0ecf5 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Wed, 5 Sep 2018 20:25:48 +0200
Subject: [PATCH 14/16] Remove logger from extra_applications

---
 mix.exs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mix.exs b/mix.exs
index 8c0d398..ac71dd2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -35,9 +35,7 @@ defmodule TypedStruct.MixProject do
   end
 
   def application do
-    [
-      extra_applications: [:logger]
-    ]
+    [extra_applications: []]
   end
 
   # Specifies which paths to compile per environment.

From 4c3407e8633d16a51b48ec3d9f1771d1dc44dd8a Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Wed, 5 Sep 2018 21:30:12 +0200
Subject: [PATCH 15/16] Bump version to 0.1.2

---
 README.md | 2 +-
 mix.exs   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a4bc4df..41d11c8 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,7 @@ Thanks to TypedStruct, this is now possible :)
 To use TypedStruct in your project, add this to your Mix dependencies:
 
 ```elixir
-{:typed_struct, "~> 0.1.1"}
+{:typed_struct, "~> 0.1.2"}
 ```
 
 If you do not plan to compile modules using TypedStruct at runtime, you can add
diff --git a/mix.exs b/mix.exs
index ac71dd2..67d8f47 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule TypedStruct.MixProject do
   use Mix.Project
 
-  @version "0.1.2-dev"
+  @version "0.1.2"
   @repo_url "https://github.com/ejpcmac/typed_struct"
 
   def project do

From 08679cb1709113ae7930fa9f7b77c9200f8ea18d Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Wed, 5 Sep 2018 21:31:56 +0200
Subject: [PATCH 16/16] Update the changelog

---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f192d00..5437ef1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## v0.1.2
+
+* Add the ability to enforce keys by default (#6)
+* Clarify the documentation about `runtime: false`
+
 ## v0.1.1
 
 * Do not make the type nullable when there is a default value