From 3cb09cbffde2caa4ee201535a0b1914e19511042 Mon Sep 17 00:00:00 2001
From: Yevhenii Kurtov <lessless@users.noreply.github.com>
Date: Sat, 3 Aug 2019 13:31:35 +0000
Subject: [PATCH 01/14] Update deprecated time unit

Rename `seconds` to `second` as per warning message https://github.com/elixir-lang/elixir/blob/3c9ff7b1aea00667f32253ecafe4c6fea23982ff/lib/elixir/lib/system.ex#L1073
---
 lib/plug_session_mnesia/cleaner.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/plug_session_mnesia/cleaner.ex b/lib/plug_session_mnesia/cleaner.ex
index 6defef9..b0d8af4 100644
--- a/lib/plug_session_mnesia/cleaner.ex
+++ b/lib/plug_session_mnesia/cleaner.ex
@@ -62,7 +62,7 @@ defmodule PlugSessionMnesia.Cleaner do
 
   def clean_sessions(table, max_age) do
     oldest_timestamp =
-      System.os_time() - System.convert_time_unit(max_age, :seconds, :native)
+      System.os_time() - System.convert_time_unit(max_age, :second, :native)
 
     delete_old_sessions = fn ->
       old_sids =

From ee73efeb620a16d4be999bfc31b7ccb8e667504e Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 13:02:51 +0200
Subject: [PATCH 02/14] Bump the version to 0.1.3-dev

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

diff --git a/mix.exs b/mix.exs
index dc87443..c1a4a34 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule PlugSessionMnesia.Mixfile do
   use Mix.Project
 
-  @version "0.1.2"
+  @version "0.1.3-dev"
   @repo_url "https://github.com/ejpcmac/plug_session_mnesia"
 
   def project do

From cf0b480be111e6cb98fbf5fe33878f4e9f5483c4 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 13:09:21 +0200
Subject: [PATCH 03/14] Update the copyrights

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

diff --git a/LICENSE b/LICENSE
index 63e81de..e4a4cc8 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017 Jean-Philippe Cugnet
+Copyright (c) 2017-2019 Jean-Philippe Cugnet and contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index d03d110..51ab6b3 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,6 @@ Before contributing to this project, please read the
 
 ## License
 
-Copyright © 2017-2018 Jean-Philippe Cugnet
+Copyright © 2017-2019 Jean-Philippe Cugnet and contributors
 
 This project is licensed under the [MIT license](LICENSE).

From 712dbae987dcac7bd559d67866c77043875cd1dd Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 13:39:53 +0200
Subject: [PATCH 04/14] Update to the current xgen conventions

---
 .envrc         | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++
 .formatter.exs |  5 ++-
 .gitignore     | 46 +++++++++++++++++----------
 mix.exs        | 73 +++++++++++++++++++++++++++++++++++--------
 mix.lock       | 40 ++++++++++++------------
 shell.nix      | 22 +++++++++++++
 6 files changed, 221 insertions(+), 49 deletions(-)
 create mode 100644 .envrc
 create mode 100644 shell.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..6d28500
--- /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/.formatter.exs b/.formatter.exs
index 698fe01..58ff344 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -1,4 +1,7 @@
 [
-  inputs: ["{mix,.formatter,.credo}.exs", "{config,lib,test}/**/*.{ex,exs}"],
+  inputs: [
+    "{mix,.iex,.formatter,.credo}.exs",
+    "{config,lib,rel,test}/**/*.{ex,exs}"
+  ],
   line_length: 80
 ]
diff --git a/.gitignore b/.gitignore
index d499303..7e6001b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,26 +1,40 @@
-# The directory Mix will write compiled artifacts to.
-/_build/
+##
+## Application artifacts
+##
 
-# If you run "mix test --cover", coverage assets end up here.
-/cover/
+# direnv cache for Nix shells
+/.direnv/
 
-# The directory Mix downloads your dependencies sources to.
-/deps/
-
-# Where 3rd-party dependencies like ExDoc output generated docs.
-/doc/
+# Elixir build directory
+/_build/
 
-# Ignore .fetch files in case you like to edit your project deps locally.
+# Elixir dependencies
+/deps/
 /.fetch
 
-# If the VM crashes, it generates a dump, let's ignore it too.
-erl_crash.dump
-
-# Also ignore archive artifacts (built via "mix archive.build").
+# Elixir binary files
+*.beam
 *.ez
+/xgen-*.tar
+/xgen
 
-# Elixir LS artifacts.
-/.elixir_ls/
+# Test coverage and documentation
+/cover/
+/doc/
 
 # Mnesia database
 /Mnesia.*
+
+##
+## Editor artifacts
+##
+
+/.elixir_ls/
+/.history/
+
+##
+## Crash dumps
+##
+
+# Erang VM
+erl_crash.dump
diff --git a/mix.exs b/mix.exs
index c1a4a34..d237218 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,33 +1,31 @@
 defmodule PlugSessionMnesia.Mixfile do
   use Mix.Project
 
-  @version "0.1.3-dev"
+  @version "0.1.3"
   @repo_url "https://github.com/ejpcmac/plug_session_mnesia"
 
   def project do
     [
       app: :plug_session_mnesia,
-      version: @version,
+      version: @version <> dev(),
       elixir: "~> 1.5",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       deps: deps(),
-      dialyzer: [
-        plt_add_deps: :transitive,
-        flags: [:unmatched_returns, :error_handling, :race_conditions],
-        ignore_warnings: ".dialyzer_ignore"
-      ],
+
+      # Tools
+      dialyzer: dialyzer(),
       test_coverage: [tool: ExCoveralls],
-      preferred_cli_env: [
-        coveralls: :test,
-        "coveralls.detail": :test,
-        "coveralls.html": :test
-      ],
+      preferred_cli_env: cli_env(),
+
+      # Docs
       docs: [
         main: "PlugSessionMnesia",
         source_url: @repo_url,
         source_ref: "v#{@version}"
       ],
+
+      # Package
       package: package(),
       description: """
       An application for storing and managing Plug sessions with Mnesia.
@@ -63,6 +61,44 @@ defmodule PlugSessionMnesia.Mixfile do
     ]
   end
 
+  # Dialyzer configuration
+  defp dialyzer do
+    [
+      # Use a custom PLT directory for continuous integration caching.
+      plt_core_path: System.get_env("PLT_DIR"),
+      plt_file: plt_file(),
+      plt_add_deps: :transitive,
+      flags: [
+        :unmatched_returns,
+        :error_handling,
+        :race_conditions
+      ],
+      ignore_warnings: ".dialyzer_ignore"
+    ]
+  end
+
+  defp plt_file do
+    case System.get_env("PLT_DIR") do
+      nil -> nil
+      plt_dir -> {:no_warn, Path.join(plt_dir, "xgen.plt")}
+    end
+  end
+
+  defp cli_env do
+    [
+      # Run mix test.watch in `:test` env.
+      "test.watch": :test,
+
+      # Always run Coveralls Mix tasks in `:test` env.
+      coveralls: :test,
+      "coveralls.detail": :test,
+      "coveralls.html": :test,
+
+      # Use a custom env for docs.
+      docs: :docs
+    ]
+  end
+
   defp package do
     [
       maintainers: ["Jean-Philippe Cugnet"],
@@ -70,4 +106,17 @@ defmodule PlugSessionMnesia.Mixfile do
       links: %{"GitHub" => @repo_url}
     ]
   end
+
+  # Helper to add a development revision to the version. Do NOT make a call to
+  # Git this way in a production release!!
+  def dev do
+    with {rev, 0} <-
+           System.cmd("git", ["rev-parse", "--short", "HEAD"],
+             stderr_to_stdout: true
+           ) do
+      "-dev+" <> String.trim(rev)
+    else
+      _ -> "-dev"
+    end
+  end
 end
diff --git a/mix.lock b/mix.lock
index 452a862..33fd847 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,22 +1,22 @@
 %{
-  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [], [], "hexpm"},
-  "certifi": {:hex, :certifi, "2.0.0", "a0c0e475107135f76b8c1d5bc7efb33cd3815cb3cf3dea7aefdd174dabead064", [], [], "hexpm"},
-  "credo": {:hex, :credo, "0.8.10", "261862bb7363247762e1063713bb85df2bbd84af8d8610d1272cd9c1943bba63", [], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}], "hexpm"},
-  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [], [], "hexpm"},
-  "earmark": {:hex, :earmark, "1.2.4", "99b637c62a4d65a20a9fb674b8cffb8baa771c04605a80c911c4418c69b75439", [], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.18.1", "37c69d2ef62f24928c1f4fdc7c724ea04aecfdf500c4329185f8e3649c915baf", [], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
-  "ex_unit_notifier": {:hex, :ex_unit_notifier, "0.1.4", "36a2dcab829f506e01bf17816590680dd1474407926d43e64c1263e627c364b8", [], [], "hexpm"},
-  "excoveralls": {:hex, :excoveralls, "0.8.0", "99d2691d3edf8612f128be3f9869c4d44b91c67cec92186ce49470ae7a7404cf", [], [{:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: false]}, {:hackney, ">= 0.12.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
-  "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [], [{:jsx, "~> 2.8.0", [hex: :jsx, repo: "hexpm", optional: false]}], "hexpm"},
-  "fs": {:hex, :fs, "0.9.2", "ed17036c26c3f70ac49781ed9220a50c36775c6ca2cf8182d123b6566e49ec59", [], [], "hexpm"},
-  "hackney": {:hex, :hackney, "1.10.1", "c38d0ca52ea80254936a32c45bb7eb414e7a96a521b4ce76d00a69753b157f21", [], [{:certifi, "2.0.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.0", [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, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
-  "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [], [], "hexpm"},
-  "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [], [], "hexpm"},
-  "mime": {:hex, :mime, "1.2.0", "78adaa84832b3680de06f88f0997e3ead3b451a440d183d688085be2d709b534", [], [], "hexpm"},
-  "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [], [], "hexpm"},
-  "mix_test_watch": {:hex, :mix_test_watch, "0.5.0", "2c322d119a4795c3431380fca2bca5afa4dc07324bd3c0b9f6b2efbdd99f5ed3", [], [{:fs, "~> 0.9.1", [hex: :fs, repo: "hexpm", optional: false]}], "hexpm"},
-  "plug": {:hex, :plug, "1.4.3", "236d77ce7bf3e3a2668dc0d32a9b6f1f9b1f05361019946aae49874904be4aed", [], [{:cowboy, "~> 1.0.1 or ~> 1.1", [hex: :cowboy, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}], "hexpm"},
-  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [], [], "hexpm"},
-  "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [], [], "hexpm"},
+  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm"},
+  "certifi": {:hex, :certifi, "2.0.0", "a0c0e475107135f76b8c1d5bc7efb33cd3815cb3cf3dea7aefdd174dabead064", [:rebar3], [], "hexpm"},
+  "credo": {:hex, :credo, "0.8.10", "261862bb7363247762e1063713bb85df2bbd84af8d8610d1272cd9c1943bba63", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}], "hexpm"},
+  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
+  "earmark": {:hex, :earmark, "1.2.4", "99b637c62a4d65a20a9fb674b8cffb8baa771c04605a80c911c4418c69b75439", [:mix], [], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.18.1", "37c69d2ef62f24928c1f4fdc7c724ea04aecfdf500c4329185f8e3649c915baf", [: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, "0.8.0", "99d2691d3edf8612f128be3f9869c4d44b91c67cec92186ce49470ae7a7404cf", [:mix], [{:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: false]}, {:hackney, ">= 0.12.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
+  "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, repo: "hexpm", optional: false]}], "hexpm"},
+  "fs": {:hex, :fs, "0.9.2", "ed17036c26c3f70ac49781ed9220a50c36775c6ca2cf8182d123b6566e49ec59", [:rebar], [], "hexpm"},
+  "hackney": {:hex, :hackney, "1.10.1", "c38d0ca52ea80254936a32c45bb7eb414e7a96a521b4ce76d00a69753b157f21", [:rebar3], [{:certifi, "2.0.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.0", [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, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
+  "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [:mix, :rebar3], [], "hexpm"},
+  "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm"},
+  "mime": {:hex, :mime, "1.2.0", "78adaa84832b3680de06f88f0997e3ead3b451a440d183d688085be2d709b534", [:mix], [], "hexpm"},
+  "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], [], "hexpm"},
+  "mix_test_watch": {:hex, :mix_test_watch, "0.5.0", "2c322d119a4795c3431380fca2bca5afa4dc07324bd3c0b9f6b2efbdd99f5ed3", [:mix], [{:fs, "~> 0.9.1", [hex: :fs, repo: "hexpm", optional: false]}], "hexpm"},
+  "plug": {:hex, :plug, "1.4.3", "236d77ce7bf3e3a2668dc0d32a9b6f1f9b1f05361019946aae49874904be4aed", [:mix], [{:cowboy, "~> 1.0.1 or ~> 1.1", [hex: :cowboy, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}], "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"},
 }
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..9537a9a
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,22 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+with pkgs;
+
+let
+  inherit (lib) optional optionals;
+
+  elixir = beam.packages.erlangR22.elixir_1_9;
+  gitflow = gitAndTools.gitflow;
+in
+
+mkShell {
+  buildInputs = [ elixir git gitflow ]
+    ++ optional stdenv.isLinux libnotify # For ExUnit Notifier on Linux.
+    ++ optional stdenv.isLinux inotify-tools # For file_system 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 5c1c46d2f78a6b1a5cf42966089bf3b1df05e942 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 13:45:51 +0200
Subject: [PATCH 05/14] Update the contributing guidelines to use Nix

---
 CONTRIBUTING.md | 100 ++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 84 insertions(+), 16 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 0fb493e..d652bbb 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,8 +1,15 @@
 # Contributing to plug_session_mnesia
 
-This project uses [git-flow](https://github.com/petervanderdoes/gitflow-avh).
-The `master` branch is reserved to releases: the development process occurs on
-`develop` and feature branches. **Please never commit to master.**
+`plug_session_mnesia` is written in [Elixir](https://elixir-lang.org).
+
+For branching management, this project uses
+[git-flow](https://github.com/petervanderdoes/gitflow-avh). The `master` branch
+is reserved for releases: the development process occurs on `develop` and
+feature branches. **Please never commit to master.**
+
+You can easily set up a development environment featuring all the dependencies,
+including Elixir and `git-flow`, by using [Nix](https://nixos.org/nix/). This is
+detailed below.
 
 ## Setup
 
@@ -13,34 +20,77 @@ The `master` branch is reserved to releases: the development process occurs on
 2. Clone your fork to a local repository:
 
         $ git clone https://github.com/you/plug_session_mnesia.git
-        $ cd project
+        $ cd plug_session_mnesia
 
 3. Add the main repository as a remote:
 
-        $ git remote add upstream https://github.com/ejpcmac.net/plug_session_mnesia.git
+        $ git remote add upstream https://github.com/ejpcmac/plug_session_mnesia.git
 
 4. Checkout to `develop`:
 
         $ git checkout develop
 
-### Development environment
+### Development environment (without Nix)
+
+Install an Elixir environment, and optionally install `git-flow`.
+
+### Development environment (with Nix)
+
+1. Install Nix by running the script and following the instructions:
+
+        $ curl https://nixos.org/nix/install | sh
+
+2. Optionally install [direnv](https://github.com/direnv/direnv) to
+    automatically setup the environment when you enter the project directory:
+
+        $ nix-env -i direnv
+
+    In this case, you also need to add to your `~/.<shell>rc`:
+
+    ```sh
+    eval "$(direnv hook <shell>)"
+    ```
+
+    *Make sure to replace `<shell>` by your shell, namely `bash`, `zsh`, …*
+
+3. In the project directory, if you **did not** install direnv, start a Nix
+   shell:
+
+        $ cd plug_session_mnesia
+        $ nix-shell
 
-1. Install an Elixir environment.
+    If you opted to use direnv, please allow the `.envrc` instead of running a
+    Nix shell manually:
 
-2. Fetch the project dependencies and build the project:
+        $ cd plug_session_mnesia
+        $ direnv allow
 
-        $ cd project
+    In this case, direnv will automatically update your environment to behave
+    like a Nix shell whenever you enter the project directory.
+
+### Git-flow
+
+If you want to use `git-flow` and use the standard project configuration, please
+run:
+
+    $ ./.gitsetup
+
+### Building the project
+
+1. Fetch the project dependencies and build the project:
+
+        $ cd plug_session_mnesia
         $ mix do deps.get, compile
 
-3. Launch the tests:
+2. Launch the tests:
 
-        $ mix test --stale
+        $ mix test
 
-All tests should pass.
+All the tests should pass.
 
 ## Workflow
 
-To make a change, please follow this workflow:
+To make a change, please use this workflow:
 
 1. Checkout to `develop` and apply the last upstream changes (use rebase, not
     merge!):
@@ -49,11 +99,21 @@ To make a change, please follow this workflow:
         $ git fetch --all --prune
         $ git rebase upstream/develop
 
-2. Create a new branch with an explicit name:
+2. For a tiny patch, create a new branch with an explicit name:
 
         $ git checkout -b <my_branch>
 
-3. Work on your feature (don’t forget to write some tests, TDD is good ;-)):
+    Alternatively, if you are working on a feature which would need more work,
+    you can create a feature branch with `git-flow`:
+
+        $ git flow feature start <my_feature>
+
+    *Note: always open an issue and ask before starting a big feature, to avoid
+    it not beeing merged and your time lost.*
+
+3. Work on your feature (don’t forget to write typespecs and tests; you can
+    check your coverage with `mix coveralls.html` and open
+    `cover/excoveralls.html`):
 
         # Some work
         $ git commit -am "My first change"
@@ -71,11 +131,16 @@ To make a change, please follow this workflow:
         $ git rebase upstream/develop
 
 5. If there were commits on `develop` since the beginning of your feature
-    branch, integrate them by **rebasing**:
+    branch, integrate them by **rebasing** if your branch has few commits, or
+    merging if you had a long-lived branch:
 
         $ git checkout <my_feature_branch>
         $ git rebase develop
 
+    *Note: the only case you should merge is when you are working on a big
+    feature. If it is the case, we should have discussed this before as stated
+    above.*
+
 6. Run the tests and static analyzers to ensure there is no regression and all
     works as expected:
 
@@ -90,3 +155,6 @@ To make a change, please follow this workflow:
 
 Please format your code with `mix format` or your editor and follow
 [this style guide](https://github.com/christopheradams/elixir_style_guide).
+
+All contributed code must be documented and functions must have typespecs. In
+general, take your inspiration from the existing code.

From 16c7a84061663abfacf223443cd95c2aa16dbd09 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 13:55:53 +0200
Subject: [PATCH 06/14] [CI] Add a configuration for Travis CI

---
 .travis.yml | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 .travis.yml

diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..f451e12
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,45 @@
+language: elixir
+elixir:
+  - 1.6
+  - 1.7
+  - 1.8
+  - 1.9
+otp_release:
+  - 19.3
+  - 20.3
+  - 21.2
+  - 22.0
+matrix:
+  exclude:
+    - elixir: 1.6
+      otp_release: 21.2
+    - elixir: 1.6
+      otp_release: 22.0
+    - elixir: 1.7
+      otp_release: 19.3
+    - elixir: 1.7
+      otp_release: 20.3
+    - elixir: 1.8
+      otp_release: 19.3
+    - elixir: 1.8
+      otp_release: 20.3
+    - elixir: 1.9
+      otp_release: 19.3
+    - elixir: 1.9
+      otp_release: 20.3
+env:
+  - PLT_DIR=$HOME/.plt
+before_script:
+  - mkdir -p $PLT_DIR
+  - mix deps.compile
+  - MIX_ENV=test mix deps.compile
+  - travis_wait mix dialyzer --plt
+script:
+  - mix compile --force --verbose --warnings-as-errors
+  - mix test --trace
+  - mix dialyzer --no-compile --no-check --halt-exit-status
+  - mix credo
+  - if [[ "$TRAVIS_ELIXIR_VERSION" == "1.9.1" ]]; then mix format --check-formatted; fi
+cache:
+  directories:
+    - $PLT_DIR

From c66daac0d7e926436679ea64ee4f581453ea146f Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 13:58:06 +0200
Subject: [PATCH 07/14] Add a build status badge

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 51ab6b3..e4e1dc4 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # plug_session_mnesia
 
+[![Build Status](https://travis-ci.com/ejpcmac/plug_session_mnesia.svg?branch=develop)](https://travis-ci.com/ejpcmac/plug_session_mnesia)
 [![hex.pm version](http://img.shields.io/hexpm/v/plug_session_mnesia.svg?style=flat)](https://hex.pm/packages/plug_session_mnesia)
 
 An application for storing and managing Plug sessions with Mnesia.

From 004ba2dd0631a0167ed415d1747f0a55cf29f854 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:03:13 +0200
Subject: [PATCH 08/14] Update the dependencies

---
 .credo.exs        | 138 ++++++++++++++++++++++++----------------------
 config/config.exs |   4 +-
 config/dev.exs    |   3 -
 config/test.exs   |   3 +
 mix.exs           |   8 +--
 mix.lock          |  39 +++++++------
 6 files changed, 103 insertions(+), 92 deletions(-)

diff --git a/.credo.exs b/.credo.exs
index f4b3913..f68970a 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
@@ -51,12 +51,12 @@
         #
         ## Consistency Checks
         #
-        {Credo.Check.Consistency.ExceptionNames},
-        {Credo.Check.Consistency.LineEndings},
-        {Credo.Check.Consistency.ParameterPatternMatching},
-        {Credo.Check.Consistency.SpaceAroundOperators},
-        {Credo.Check.Consistency.SpaceInParentheses},
-        {Credo.Check.Consistency.TabsOrSpaces},
+        {Credo.Check.Consistency.ExceptionNames, []},
+        {Credo.Check.Consistency.LineEndings, []},
+        {Credo.Check.Consistency.ParameterPatternMatching, []},
+        {Credo.Check.Consistency.SpaceAroundOperators, []},
+        {Credo.Check.Consistency.SpaceInParentheses, []},
+        {Credo.Check.Consistency.TabsOrSpaces, []},
 
         #
         ## Design Checks
@@ -64,95 +64,99 @@
         # You can customize the priority of any check
         # Priority values are: `low, normal, high, higher`
         #
-        {Credo.Check.Design.AliasUsage, priority: :low},
+        {Credo.Check.Design.AliasUsage,
+         [
+           priority: :low,
+           if_nested_deeper_than: 2,
+           if_called_more_often_than: 0
+         ]},
         # For some checks, you can also set other parameters
         #
         # If you don't want the `setup` and `test` macro calls in ExUnit tests
         # or the `schema` macro in Ecto schemas to trigger DuplicatedCode, just
         # set the `excluded_macros` parameter to `[:schema, :setup, :test]`.
         #
-        {Credo.Check.Design.DuplicatedCode, excluded_macros: []},
-
+        {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).
         #
-        {Credo.Check.Design.TagTODO, exit_status: 0},
-        {Credo.Check.Design.TagFIXME},
+        {Credo.Check.Design.TagTODO, [exit_status: 0]},
+        {Credo.Check.Design.TagFIXME, []},
 
         #
         ## Readability Checks
         #
-        {Credo.Check.Readability.FunctionNames},
-        {Credo.Check.Readability.LargeNumbers},
-        {Credo.Check.Readability.MaxLineLength, priority: :low, max_length: 80},
-        {Credo.Check.Readability.ModuleAttributeNames},
-        {Credo.Check.Readability.ModuleDoc},
-        {Credo.Check.Readability.ModuleNames},
-        {Credo.Check.Readability.ParenthesesOnZeroArityDefs},
-        {Credo.Check.Readability.ParenthesesInCondition},
-        {Credo.Check.Readability.PredicateFunctionNames},
-        {Credo.Check.Readability.PreferImplicitTry},
-        {Credo.Check.Readability.RedundantBlankLines},
-        {Credo.Check.Readability.StringSigils},
-        {Credo.Check.Readability.TrailingBlankLine},
-        {Credo.Check.Readability.TrailingWhiteSpace},
-        {Credo.Check.Readability.VariableNames},
-        {Credo.Check.Readability.Semicolons},
-        {Credo.Check.Readability.SpaceAfterCommas},
+        {Credo.Check.Readability.AliasOrder, []},
+        {Credo.Check.Readability.FunctionNames, []},
+        {Credo.Check.Readability.LargeNumbers, []},
+        {Credo.Check.Readability.MaxLineLength,
+         [priority: :low, max_length: 80]},
+        {Credo.Check.Readability.ModuleAttributeNames, []},
+        {Credo.Check.Readability.ModuleDoc, []},
+        {Credo.Check.Readability.ModuleNames, []},
+        {Credo.Check.Readability.ParenthesesInCondition, []},
+        {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
+        {Credo.Check.Readability.PredicateFunctionNames, []},
+        {Credo.Check.Readability.PreferImplicitTry, []},
+        {Credo.Check.Readability.RedundantBlankLines, []},
+        {Credo.Check.Readability.Semicolons, []},
+        {Credo.Check.Readability.SpaceAfterCommas, []},
+        {Credo.Check.Readability.StringSigils, []},
+        {Credo.Check.Readability.TrailingBlankLine, []},
+        {Credo.Check.Readability.TrailingWhiteSpace, []},
+        {Credo.Check.Readability.VariableNames, []},
 
         #
         ## Refactoring Opportunities
         #
-        {Credo.Check.Refactor.DoubleBooleanNegation, false},
-        {Credo.Check.Refactor.CondStatements},
-        {Credo.Check.Refactor.CyclomaticComplexity},
-        {Credo.Check.Refactor.FunctionArity},
-        {Credo.Check.Refactor.LongQuoteBlocks},
-        {Credo.Check.Refactor.MatchInCondition},
-        {Credo.Check.Refactor.NegatedConditionsInUnless},
-        {Credo.Check.Refactor.NegatedConditionsWithElse},
-        {Credo.Check.Refactor.Nesting},
-        {Credo.Check.Refactor.PipeChainStart},
-        {Credo.Check.Refactor.UnlessWithElse},
+        {Credo.Check.Refactor.CondStatements, []},
+        {Credo.Check.Refactor.CyclomaticComplexity, []},
+        {Credo.Check.Refactor.FunctionArity, []},
+        {Credo.Check.Refactor.LongQuoteBlocks, []},
+        {Credo.Check.Refactor.MatchInCondition, []},
+        {Credo.Check.Refactor.NegatedConditionsInUnless, []},
+        {Credo.Check.Refactor.NegatedConditionsWithElse, []},
+        {Credo.Check.Refactor.Nesting, []},
+        {Credo.Check.Refactor.PipeChainStart,
+         [
+           excluded_argument_types: [:atom, :binary, :fn, :keyword],
+           excluded_functions: []
+         ]},
+        {Credo.Check.Refactor.UnlessWithElse, []},
 
         #
         ## Warnings
         #
-        {Credo.Check.Warning.BoolOperationOnSameValues},
-        {Credo.Check.Warning.ExpensiveEmptyEnumCheck},
-        {Credo.Check.Warning.IExPry},
-        {Credo.Check.Warning.IoInspect},
-        {Credo.Check.Warning.LazyLogging},
-        {Credo.Check.Warning.OperationOnSameValues},
-        {Credo.Check.Warning.OperationWithConstantResult},
-        {Credo.Check.Warning.UnusedEnumOperation},
-        {Credo.Check.Warning.UnusedFileOperation},
-        {Credo.Check.Warning.UnusedKeywordOperation},
-        {Credo.Check.Warning.UnusedListOperation},
-        {Credo.Check.Warning.UnusedPathOperation},
-        {Credo.Check.Warning.UnusedRegexOperation},
-        {Credo.Check.Warning.UnusedStringOperation},
-        {Credo.Check.Warning.UnusedTupleOperation},
-        {Credo.Check.Warning.RaiseInsideRescue},
+        {Credo.Check.Warning.BoolOperationOnSameValues, []},
+        {Credo.Check.Warning.ExpensiveEmptyEnumCheck, []},
+        {Credo.Check.Warning.IExPry, []},
+        {Credo.Check.Warning.IoInspect, []},
+        {Credo.Check.Warning.OperationOnSameValues, []},
+        {Credo.Check.Warning.OperationWithConstantResult, []},
+        {Credo.Check.Warning.RaiseInsideRescue, []},
+        {Credo.Check.Warning.UnusedEnumOperation, []},
+        {Credo.Check.Warning.UnusedFileOperation, []},
+        {Credo.Check.Warning.UnusedKeywordOperation, []},
+        {Credo.Check.Warning.UnusedListOperation, []},
+        {Credo.Check.Warning.UnusedPathOperation, []},
+        {Credo.Check.Warning.UnusedRegexOperation, []},
+        {Credo.Check.Warning.UnusedStringOperation, []},
+        {Credo.Check.Warning.UnusedTupleOperation, []},
 
         #
         # Controversial and experimental checks (opt-in, just remove `, false`)
         #
+        {Credo.Check.Consistency.MultiAliasImportRequireUse, false},
+        {Credo.Check.Readability.Specs, false},
         {Credo.Check.Refactor.ABCSize, false},
         {Credo.Check.Refactor.AppendSingleItem, false},
+        {Credo.Check.Refactor.DoubleBooleanNegation, false},
+        {Credo.Check.Refactor.MapInto, false},
         {Credo.Check.Refactor.VariableRebinding, false},
+        {Credo.Check.Warning.LazyLogging, false},
         {Credo.Check.Warning.MapGetUnsafePass, false},
-        {Credo.Check.Consistency.MultiAliasImportRequireUse, false},
-
-        #
-        # Deprecated checks (these will be deleted after a grace period)
-        #
-        {Credo.Check.Readability.Specs, false},
-        {Credo.Check.Warning.NameRedeclarationByAssignment, false},
-        {Credo.Check.Warning.NameRedeclarationByCase, false},
-        {Credo.Check.Warning.NameRedeclarationByDef, false},
-        {Credo.Check.Warning.NameRedeclarationByFn, false}
+        {Credo.Check.Warning.UnsafeToAtom, false}
 
         #
         # Custom checks can be created using `mix credo.gen.check`.
diff --git a/config/config.exs b/config/config.exs
index d70ad8a..77dde22 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -2,4 +2,6 @@ use Mix.Config
 
 # Import environment specific config. This must remain at the bottom of this
 # file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
+unless Mix.env() == :docs do
+  import_config "#{Mix.env()}.exs"
+end
diff --git a/config/dev.exs b/config/dev.exs
index 099e168..b2781ac 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -4,6 +4,3 @@ config :plug_session_mnesia,
   table: :session,
   max_age: 60,
   cleaner_timeout: 1
-
-# Clear the console before each test run
-config :mix_test_watch, clear: true
diff --git a/config/test.exs b/config/test.exs
index 95cda5d..623c410 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -3,6 +3,9 @@ use Mix.Config
 # Print only warnings and errors during test
 config :logger, level: :warn
 
+# Clear the console before each test run
+config :mix_test_watch, clear: true
+
 # Configuration for the session cleaner
 config :plug_session_mnesia,
   table: :session,
diff --git a/mix.exs b/mix.exs
index d237218..f5d82aa 100644
--- a/mix.exs
+++ b/mix.exs
@@ -47,17 +47,17 @@ defmodule PlugSessionMnesia.Mixfile do
   defp deps do
     [
       # Development and test dependencies
-      {:credo, "~> 0.8.8", only: [:dev, :test], runtime: false},
-      {:dialyxir, ">= 0.0.0", only: [:dev, :test], runtime: false},
+      {:credo, "~> 1.0", only: :dev, runtime: false},
+      {:dialyxir, "~> 1.0-rc", only: :dev, runtime: false},
       {:excoveralls, ">= 0.0.0", only: :test, runtime: false},
-      {:mix_test_watch, ">= 0.0.0", only: :dev, runtime: false},
+      {:mix_test_watch, ">= 0.0.0", only: :test, runtime: false},
       {:ex_unit_notifier, ">= 0.0.0", only: :test, runtime: false},
 
       # Project dependencies
       {:plug, "~> 1.4", optional: true},
 
       # Documentation dependencies
-      {:ex_doc, ">= 0.0.0", only: :dev, runtime: false}
+      {:ex_doc, "~> 0.19", only: :docs, runtime: false}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index 33fd847..0249d9d 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,22 +1,27 @@
 %{
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm"},
-  "certifi": {:hex, :certifi, "2.0.0", "a0c0e475107135f76b8c1d5bc7efb33cd3815cb3cf3dea7aefdd174dabead064", [:rebar3], [], "hexpm"},
-  "credo": {:hex, :credo, "0.8.10", "261862bb7363247762e1063713bb85df2bbd84af8d8610d1272cd9c1943bba63", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}], "hexpm"},
-  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
-  "earmark": {:hex, :earmark, "1.2.4", "99b637c62a4d65a20a9fb674b8cffb8baa771c04605a80c911c4418c69b75439", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.18.1", "37c69d2ef62f24928c1f4fdc7c724ea04aecfdf500c4329185f8e3649c915baf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
+  "certifi": {:hex, :certifi, "2.5.1", "867ce347f7c7d78563450a18a6a28a8090331e77fa02380b4a21962a65d36ee5", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
+  "credo": {:hex, :credo, "1.1.2", "02b6422f3e659eb74b05aca3c20c1d8da0119a05ee82577a82e6c2938bf29f81", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
+  "dialyxir": {:hex, :dialyxir, "1.0.0-rc.6", "78e97d9c0ff1b5521dd68041193891aebebce52fc3b93463c0a6806874557d7d", [:mix], [{:erlex, "~> 0.2.1", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm"},
+  "earmark": {:hex, :earmark, "1.3.5", "0db71c8290b5bc81cb0101a2a507a76dca659513984d683119ee722828b424f6", [:mix], [], "hexpm"},
+  "erlex": {:hex, :erlex, "0.2.4", "23791959df45fe8f01f388c6f7eb733cc361668cbeedd801bf491c55a029917b", [:mix], [], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.21.1", "5ac36660846967cd869255f4426467a11672fec3d8db602c429425ce5b613b90", [:mix], [{:earmark, "~> 1.3", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_unit_notifier": {:hex, :ex_unit_notifier, "0.1.4", "36a2dcab829f506e01bf17816590680dd1474407926d43e64c1263e627c364b8", [:mix], [], "hexpm"},
-  "excoveralls": {:hex, :excoveralls, "0.8.0", "99d2691d3edf8612f128be3f9869c4d44b91c67cec92186ce49470ae7a7404cf", [:mix], [{:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: false]}, {:hackney, ">= 0.12.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
-  "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, repo: "hexpm", optional: false]}], "hexpm"},
-  "fs": {:hex, :fs, "0.9.2", "ed17036c26c3f70ac49781ed9220a50c36775c6ca2cf8182d123b6566e49ec59", [:rebar], [], "hexpm"},
-  "hackney": {:hex, :hackney, "1.10.1", "c38d0ca52ea80254936a32c45bb7eb414e7a96a521b4ce76d00a69753b157f21", [:rebar3], [{:certifi, "2.0.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.0", [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, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
-  "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [:mix, :rebar3], [], "hexpm"},
+  "excoveralls": {:hex, :excoveralls, "0.11.1", "dd677fbdd49114fdbdbf445540ec735808250d56b011077798316505064edb2c", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
+  "file_system": {:hex, :file_system, "0.2.7", "e6f7f155970975789f26e77b8b8d8ab084c59844d8ecfaf58cbda31c494d14aa", [:mix], [], "hexpm"},
+  "hackney": {:hex, :hackney, "1.15.1", "9f8f471c844b8ce395f7b6d8398139e26ddca9ebc171a8b91342ee15a19963f4", [:rebar3], [{:certifi, "2.5.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "6.0.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.4", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
+  "idna": {:hex, :idna, "6.0.0", "689c46cbcdf3524c44d5f3dde8001f364cd7608a99556d8fbd8239a5798d4c10", [:rebar3], [{:unicode_util_compat, "0.4.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
+  "jason": {:hex, :jason, "1.1.2", "b03dedea67a99223a2eaf9f1264ce37154564de899fd3d8b9a21b1a6fd64afe7", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
+  "makeup": {:hex, :makeup, "1.0.0", "671df94cf5a594b739ce03b0d0316aa64312cee2574b6a44becb83cd90fb05dc", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.14.0", "cf8b7c66ad1cff4c14679698d532f0b5d45a3968ffbcbfd590339cb57742f1ae", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm"},
-  "mime": {:hex, :mime, "1.2.0", "78adaa84832b3680de06f88f0997e3ead3b451a440d183d688085be2d709b534", [:mix], [], "hexpm"},
-  "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], [], "hexpm"},
-  "mix_test_watch": {:hex, :mix_test_watch, "0.5.0", "2c322d119a4795c3431380fca2bca5afa4dc07324bd3c0b9f6b2efbdd99f5ed3", [:mix], [{:fs, "~> 0.9.1", [hex: :fs, repo: "hexpm", optional: false]}], "hexpm"},
-  "plug": {:hex, :plug, "1.4.3", "236d77ce7bf3e3a2668dc0d32a9b6f1f9b1f05361019946aae49874904be4aed", [:mix], [{:cowboy, "~> 1.0.1 or ~> 1.1", [hex: :cowboy, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}], "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"},
+  "mime": {:hex, :mime, "1.3.1", "30ce04ab3175b6ad0bdce0035cba77bba68b813d523d1aac73d9781b4d193cf8", [:mix], [], "hexpm"},
+  "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm"},
+  "mix_test_watch": {:hex, :mix_test_watch, "0.9.0", "c72132a6071261893518fa08e121e911c9358713f62794a90c95db59042af375", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm"},
+  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm"},
+  "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm"},
+  "plug": {:hex, :plug, "1.8.3", "12d5f9796dc72e8ac9614e94bda5e51c4c028d0d428e9297650d09e15a684478", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm"},
+  "plug_crypto": {:hex, :plug_crypto, "1.0.0", "18e49317d3fa343f24620ed22795ec29d4a5e602d52d1513ccea0b07d8ea7d4d", [:mix], [], "hexpm"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
+  "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
 }

From c3fa18402cddb61abeb397339675d21a19b46896 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:16:06 +0200
Subject: [PATCH 09/14] Also fix time units in tests

---
 test/plug_session_mnesia/cleaner_test.exs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/test/plug_session_mnesia/cleaner_test.exs b/test/plug_session_mnesia/cleaner_test.exs
index 763e723..632ea0f 100644
--- a/test/plug_session_mnesia/cleaner_test.exs
+++ b/test/plug_session_mnesia/cleaner_test.exs
@@ -33,8 +33,8 @@ defmodule PlugSessionMnesia.CleanerTest do
 
     test "cleans old sessions" do
       now = System.os_time()
-      one_sec_ago = now - System.convert_time_unit(1, :seconds, :native)
-      five_sec_ago = now - System.convert_time_unit(5, :seconds, :native)
+      one_sec_ago = now - System.convert_time_unit(1, :second, :native)
+      five_sec_ago = now - System.convert_time_unit(5, :second, :native)
       session_a = {@table, "session_a", @data, five_sec_ago}
       session_b = {@table, "session_b", @data, one_sec_ago}
 
@@ -60,7 +60,7 @@ defmodule PlugSessionMnesia.CleanerTest do
       Application.put_env(@app, :cleaner_timeout, 1)
 
       now = System.os_time()
-      two_sec_ago = now - System.convert_time_unit(2, :seconds, :native)
+      two_sec_ago = now - System.convert_time_unit(2, :second, :native)
       old_session = {@table, "old_session", @data, two_sec_ago}
       :ok = :mnesia.dirty_write(old_session)
 
@@ -74,9 +74,9 @@ defmodule PlugSessionMnesia.CleanerTest do
   end
 
   defp reset_env_on_exit(_) do
-    on_exit fn ->
+    on_exit(fn ->
       Application.delete_env(@app, :table)
       Application.delete_env(@app, :max_age)
-    end
+    end)
   end
 end

From d475d7f6d4deed584227909183682de795911dc5 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:18:13 +0200
Subject: [PATCH 10/14] Fix Credo warnings

---
 lib/mix/tasks/session.setup.ex            | 2 +-
 lib/plug_session_mnesia/helpers.ex        | 2 +-
 test/mix/tasks/session.setup_test.exs     | 2 +-
 test/plug_session_mnesia/helpers_test.exs | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/mix/tasks/session.setup.ex b/lib/mix/tasks/session.setup.ex
index 3dc02e0..d582b63 100644
--- a/lib/mix/tasks/session.setup.ex
+++ b/lib/mix/tasks/session.setup.ex
@@ -36,8 +36,8 @@ defmodule Mix.Tasks.Session.Setup do
   """
 
   alias PlugSessionMnesia.Helpers
-  alias PlugSessionMnesia.TableNotDefined
   alias PlugSessionMnesia.TableExists
+  alias PlugSessionMnesia.TableNotDefined
 
   @spec run(OptionParser.argv()) :: boolean()
   def run(_argv) do
diff --git a/lib/plug_session_mnesia/helpers.ex b/lib/plug_session_mnesia/helpers.ex
index 6389907..1440982 100644
--- a/lib/plug_session_mnesia/helpers.ex
+++ b/lib/plug_session_mnesia/helpers.ex
@@ -7,8 +7,8 @@ defmodule PlugSessionMnesia.Helpers do
   features like distribution, you should create the table yourself.
   """
 
-  alias PlugSessionMnesia.TableNotDefined
   alias PlugSessionMnesia.TableExists
+  alias PlugSessionMnesia.TableNotDefined
 
   @typep persistence() :: :persistent | :volatile
   @typep return_value() :: :ok | {:error | :abort, term()}
diff --git a/test/mix/tasks/session.setup_test.exs b/test/mix/tasks/session.setup_test.exs
index f3833c9..d2db59f 100644
--- a/test/mix/tasks/session.setup_test.exs
+++ b/test/mix/tasks/session.setup_test.exs
@@ -5,8 +5,8 @@ defmodule Mix.Tasks.Session.SetupTest do
 
   import Mix.Tasks.Session.Setup
 
-  alias PlugSessionMnesia.TableNotDefined
   alias PlugSessionMnesia.TableExists
+  alias PlugSessionMnesia.TableNotDefined
 
   setup [:mnesia, :with_env]
 
diff --git a/test/plug_session_mnesia/helpers_test.exs b/test/plug_session_mnesia/helpers_test.exs
index 916e348..c2fab59 100644
--- a/test/plug_session_mnesia/helpers_test.exs
+++ b/test/plug_session_mnesia/helpers_test.exs
@@ -2,8 +2,8 @@ defmodule PlugSessionMnesia.HelpersTest do
   use PlugSessionMnesia.TestCase
 
   alias PlugSessionMnesia.Helpers
-  alias PlugSessionMnesia.TableNotDefined
   alias PlugSessionMnesia.TableExists
+  alias PlugSessionMnesia.TableNotDefined
 
   setup [:mnesia, :with_env]
 

From 482587324d99d76c8cec7fac1ed58d35ad396144 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:28:51 +0200
Subject: [PATCH 11/14] Run the formatter

---
 test/plug_session_mnesia/store_test.exs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/plug_session_mnesia/store_test.exs b/test/plug_session_mnesia/store_test.exs
index 2eba930..526c34f 100644
--- a/test/plug_session_mnesia/store_test.exs
+++ b/test/plug_session_mnesia/store_test.exs
@@ -48,7 +48,7 @@ defmodule PlugSessionMnesia.StoreTest do
 
     test "does not update the timestamp if timestamp is set to :fixed" do
       Application.put_env(@app, :timestamp, :fixed)
-      on_exit fn -> Application.delete_env(@app, :timestamp) end
+      on_exit(fn -> Application.delete_env(@app, :timestamp) end)
 
       {_, _, _, timestamp} = session_fixture()
       get(nil, @sid, @table)
@@ -87,7 +87,7 @@ defmodule PlugSessionMnesia.StoreTest do
 
     test "does not update the timestamp if timestamp is set to :fixed" do
       Application.put_env(@app, :timestamp, :fixed)
-      on_exit fn -> Application.delete_env(@app, :timestamp) end
+      on_exit(fn -> Application.delete_env(@app, :timestamp) end)
 
       {_, _, _, timestamp} = session_fixture()
       put(nil, @sid, @new_data, @table)

From 5a230eadba270b8781fa51198902bebb30152336 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:33:41 +0200
Subject: [PATCH 12/14] [CI] Do not test anymore on OTP 19.3

---
 .travis.yml | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index f451e12..13b7f36 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,26 +5,17 @@ elixir:
   - 1.8
   - 1.9
 otp_release:
-  - 19.3
   - 20.3
   - 21.2
   - 22.0
 matrix:
   exclude:
-    - elixir: 1.6
-      otp_release: 21.2
     - elixir: 1.6
       otp_release: 22.0
-    - elixir: 1.7
-      otp_release: 19.3
     - elixir: 1.7
       otp_release: 20.3
-    - elixir: 1.8
-      otp_release: 19.3
     - elixir: 1.8
       otp_release: 20.3
-    - elixir: 1.9
-      otp_release: 19.3
     - elixir: 1.9
       otp_release: 20.3
 env:

From 2dd73f1a441f409bd0a3419854ed97a949e02ab8 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:38:32 +0200
Subject: [PATCH 13/14] Bump the version to 0.1.3

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

diff --git a/README.md b/README.md
index e4e1dc4..2510e26 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ feature.
 To use it in your app, add this to your dependencies:
 
 ```elixir
-{:plug_session_mnesia, "~> 0.1.2"}
+{:plug_session_mnesia, "~> 0.1.3"}
 ```
 
 Then, add to your configuration:
diff --git a/mix.exs b/mix.exs
index f5d82aa..f0c4f77 100644
--- a/mix.exs
+++ b/mix.exs
@@ -7,7 +7,7 @@ defmodule PlugSessionMnesia.Mixfile do
   def project do
     [
       app: :plug_session_mnesia,
-      version: @version <> dev(),
+      version: @version,
       elixir: "~> 1.5",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,

From 49b16711c04d2a0a07369c78bb282f27e1e6edf8 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Cugnet <jean-philippe@cugnet.eu>
Date: Sun, 4 Aug 2019 15:54:39 +0200
Subject: [PATCH 14/14] Update the changelog

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8bc3254..c96406b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v0.1.3
+
+* Fix the time units
+
 ## v0.1.2
 
 * Add an index on timestamp