Configure Hex package and CI actions

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "mix" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/elixir.yml

@@ -0,0 +1,62 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Elixir CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Test - Lint - Dialyze
+
+    runs-on: ubuntu-22.04
+
+    env:
+      MIX_ENV: test
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    strategy:
+      matrix:
+        otp: ['25.x', '26.x']
+        elixir: ['1.15', '1.16']
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Elixir
+      uses: erlef/setup-beam@v1
+      with:
+        otp-version: ${{matrix.otp}}
+        elixir-version: ${{matrix.elixir}}
+
+    - uses: actions/setup-node@v3
+      with:
+        node-version: 16
+
+    - name: Restore dependencies cache
+      uses: actions/cache@v3
+      with:
+        path: deps
+        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
+        restore-keys: ${{ runner.os }}-mix-
+
+    - name: Install dependencies
+      run: mix deps.get
+
+    - name: Run tests
+      run: mix coveralls.github
+
+    - name: Credo
+      run: mix credo --strict
+
+    - name: Dialyzer
+      run: mix dialyzer

lib/uniswap/liquidity.ex

@@ -1,4 +1,7 @@
 defmodule Uniswap.Liquidity do
+  @moduledoc """
+  Manage Liquidity on Uniswap contracts
+  """
   alias Uniswap.Contracts.NonfungiblePositionManager
   alias Uniswap.Liquidity.Position
 

lib/uniswap/liquidity/math.ex

@@ -137,7 +137,7 @@ defmodule Uniswap.Liquidity.Math do
   99
   """
   @spec amount_0_for_liquidity(number, number, number) ::
-          float
+          non_neg_integer()
   def amount_0_for_liquidity(liquidity, sqrt_ratio_a, sqrt_ratio_b) do
     {lower_sqrt_ratio, upper_sqrt_ratio} = sort_prices(sqrt_ratio_a, sqrt_ratio_b)
 
@@ -159,7 +159,7 @@ defmodule Uniswap.Liquidity.Math do
   199
   """
   @spec amount_1_for_liquidity(number, number, number) ::
-          float
+          non_neg_integer()
   def amount_1_for_liquidity(liquidity, sqrt_ratio_a, sqrt_ratio_b) do
     {lower_sqrt_ratio, upper_sqrt_ratio} = sort_prices(sqrt_ratio_a, sqrt_ratio_b)
 
@@ -193,7 +193,7 @@ defmodule Uniswap.Liquidity.Math do
           number,
           number,
           number
-        ) :: {float, float}
+        ) :: {non_neg_integer(), non_neg_integer()}
   def amounts_for_liquidity(
         liquidity,
         current_sqrt_ratio,

mix.exs

@@ -1,13 +1,30 @@
 defmodule Uniswap.MixProject do
   use Mix.Project
 
+  @version "0.0.1-dev"
+  @source_url "https://github.com/alisinabh/elixir_uniswap"
+
   def project do
     [
       app: :uniswap,
       version: "0.1.0",
       elixir: "~> 1.11",
       start_permanent: Mix.env() == :prod,
-      deps: deps()
+      source_url: @source_url,
+      name: "Uniswap",
+      deps: deps(),
+      test_coverage: [tool: ExCoveralls],
+      preferred_cli_env: [
+        coveralls: :test,
+        "coveralls.detail": :test,
+        "coveralls.post": :test,
+        "coveralls.html": :test
+      ],
+      description:
+        "A comprehensive Web3 library for interacting with smart contracts on Ethereum using Elixir.",
+      package: package(),
+      docs: docs(),
+      dialyzer: dialyzer()
     ]
   end
 
@@ -18,11 +35,45 @@ defmodule Uniswap.MixProject do
     ]
   end
 
+  defp package do
+    [
+      licenses: ["MIT"],
+      links: %{"GitHub" => @source_url},
+      maintainers: ["Alisina Bahadori"],
+      files: ["lib", "priv", "mix.exs", "README*", "LICENSE*", "CHANGELOG*"]
+    ]
+  end
+
+  defp docs do
+    source_ref =
+      if String.ends_with?(@version, "-dev") do
+        "main"
+      else
+        "v#{@version}"
+      end
+
+    [
+      main: "readme",
+      extras: [
+        "README.md": [title: "Introduction"]
+      ],
+      source_url: @source_url,
+      source_ref: source_ref
+    ]
+  end
+
+  def dialyzer do
+    [flags: [:error_handling, :extra_return, :underspecs, :unknown, :unmatched_returns]]
+  end
+
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
+      {:credo, "~> 1.7", only: [:dev, :test], runtime: false},
+      {:decimal, "~> 2.1", only: :test},
+      {:dialyxir, "~> 1.3", only: [:dev, :test], runtime: false},
       {:ethers, "~> 0.3.0 or ~> 0.2.0"},
-      {:decimal, "~> 2.1", only: :test}
+      {:excoveralls, "~> 0.10", only: :test}
     ]
   end
 end

mix.lock

@@ -1,11 +1,17 @@
 %{
+  "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},
   "castore": {:hex, :castore, "1.0.5", "9eeebb394cc9a0f3ae56b813459f990abb0a3dedee1be6b27fdb50301930502f", [:mix], [], "hexpm", "8d7c597c3e4a64c395980882d4bca3cebb8d74197c590dc272cfd3b6a6310578"},
+  "credo": {:hex, :credo, "1.7.4", "68ca5cf89071511c12fd9919eb84e388d231121988f6932756596195ccf7fd35", [:mix], [{:bunt, "~> 0.2.1 or ~> 1.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "9cf776d062c78bbe0f0de1ecaee183f18f2c3ec591326107989b054b7dddefc2"},
   "decimal": {:hex, :decimal, "2.1.1", "5611dca5d4b2c3dd497dec8f68751f1f1a54755e8ed2a966c2633cf885973ad6", [:mix], [], "hexpm", "53cfe5f497ed0e7771ae1a475575603d77425099ba5faef9394932b35020ffcc"},
+  "dialyxir": {:hex, :dialyxir, "1.4.3", "edd0124f358f0b9e95bfe53a9fcf806d615d8f838e2202a9f430d59566b6b53b", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "bf2cfb75cd5c5006bec30141b131663299c661a864ec7fbbc72dfa557487a986"},
+  "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
   "ethereumex": {:hex, :ethereumex, "0.10.6", "6d75cac39b5b7a720b064fe48563f205d3d9784e5bde25f983dd07cf306c2a6d", [:make, :mix], [{:finch, "~> 0.16", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "58cf926239dabf8bd1fc6cf50a37b926274240b7f58ba5b235a20b5500a9a7e1"},
   "ethers": {:hex, :ethers, "0.3.0", "486b711c3be2426b6d90fff35427372ad102271841f3dec940db19fe2e6d19e7", [:mix], [{:ethereumex, "~> 0.10.6", [hex: :ethereumex, repo: "hexpm", optional: false]}, {:ex_abi, "~> 0.7.0", [hex: :ex_abi, repo: "hexpm", optional: false]}, {:ex_rlp, "~> 0.6.0", [hex: :ex_rlp, repo: "hexpm", optional: false]}, {:ex_secp256k1, "~> 0.7.2", [hex: :ex_secp256k1, repo: "hexpm", optional: true]}, {:idna, "~> 6.1", [hex: :idna, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "038512dfd097288f3166609c4580a60fdf47a9de6d5474fabcf643b8d1a411e9"},
   "ex_abi": {:hex, :ex_abi, "0.7.0", "4a2f83c47d98357c75862ca77fcbaa05d9199ba2888248fdb20d4f3befc3e151", [:mix], [{:ex_keccak, "~> 0.7.3", [hex: :ex_keccak, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "d35c4ef7d860fd94bcf952ab866b7639df9054c009c098ddc94cf8916d2208d6"},
   "ex_keccak": {:hex, :ex_keccak, "0.7.3", "33298f97159f6b0acd28f6e96ce5ea975a0f4a19f85fe615b4f4579b88b24d06", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.6.1", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "4c5e6d9d5f77b64ab48769a0166a9814180d40ced68ed74ce60a5174ab55b3fc"},
   "ex_rlp": {:hex, :ex_rlp, "0.6.0", "985391d2356a7cb8712a4a9a2deb93f19f2fbca0323f5c1203fcaf64d077e31e", [:mix], [], "hexpm", "7135db93b861d9e76821039b60b00a6a22d2c4e751bf8c444bffe7a042f1abaf"},
+  "excoveralls": {:hex, :excoveralls, "0.18.0", "b92497e69465dc51bc37a6422226ee690ab437e4c06877e836f1c18daeb35da9", [:mix], [{:castore, "~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "1109bb911f3cb583401760be49c02cbbd16aed66ea9509fc5479335d284da60b"},
+  "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
   "finch": {:hex, :finch, "0.18.0", "944ac7d34d0bd2ac8998f79f7a811b21d87d911e77a786bc5810adb75632ada4", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "69f5045b042e531e53edc2574f15e25e735b522c37e2ddb766e15b979e03aa65"},
   "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
   "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~> 0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},