Added hg source and Unit test cases

Makefile

@@ -10,12 +10,12 @@ build: clean
 
 .PHONY: check
 check: $(BINARY)
-	@crystal spec
+	@crystal spec --tag ~online
 
 .PHONY: clean
 clean:
 	@rm -f $(BINARY)
 
 .PHONY: run
 run: $(BINARY)
-	$(BINARY)
+	$(BINARY)

README.md

@@ -1,30 +1,72 @@
-# crystal2nix
 
-Helps nixify crystal projects.
+ [<img src="https://nixos.org/logo/nixos-logo-only-hires.png" width="200" align="right" alt="NixOS">](https://nixos.org)
+
+# Crystal2Nix
+
+Crystal2Nix is a tool designed to generate Nix expressions for Crystal projects. It simplifies the process of managing dependencies and building Crystal applications within the Nix ecosystem.
+
+## Features
+
+- Automatically generates Nix expressions from `shard.yml` files.
+- Supports Crystal projects with various dependencies.
+- Building and managing Crystal applications.
+
+## Table of Contents
+
+- [Installation](#installation)
+- [Usage](#usage)
+- [Testing](#testing)
+- [Contributing](#contributing)
+- [License](#license)
+
+## Installation
+
+### Prerequisites
+
+- [Nix](https://nixos.org/download.html) installed on your system.
+- [Crystal](https://crystal-lang.org/install/) programming language installed.
+>>>>>>> 0e63fe2 (init at 0.1.0)
 
 ## Installation
 
-You don't need to install it. With nix installed you can just run it:
+You don't need to install crystal2nix manually. With Nix installed on your system, you can run it directly using the following command:
 
 `nix-shell -p crystal2nix --run crystal2nix`
 
 ## Usage
 
+To generate a Nix expression for your Crystal project, simply run:
+
 `crystal2nix`
 
-## Development
+## Testing
+
+Unit Tests: These tests can be run within the Nix sandbox without requiring network connectivity.
+
+`make check `     # Runs unit tests
+
+## Future plans 
 
-We will welcome all help with open arms!
+Support for Fossil resources: Expanding source control compatibility.
+Additional integration test cases: Enhancing the robustness of our test suite.
 
 ## Contributing
 
+We value contributions from the community. If you have suggestions, bug reports, or improvements, please submit them through GitHub issues or pull requests. Your involvement helps us make crystal2nix better for everyone.
+
 1. Fork it (<https://github.com/your-github-user/crystal2nix/fork>)
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create a new Pull Request
 
+## License
+
+crystal2nix is licensed under the MIT License. You are free to use, modify, and distribute this software under the terms of this license.
+
 ## Contributors
 
 - [Michael Fellinger](https://github.com/manveru)
 - [Peter Hoeg](https://github.com/peterhoeg)
+- [Vidhvath J](https://github.com/vidhvath28)
+

spec/repo_git_spec.cr

@@ -0,0 +1,115 @@
+require "./spec_helper"
+
+Spectator.describe Crystal2Nix::Repo do
+  context "commit" do
+    let(:with_commit) {
+      <<-EOF
+      git: https://github.com/cadmiumcr/transliterator.git
+      version: 0.1.0+git.commit.46c4c14594057dbcfaf27e7e7c8c164d3f0ce3f1
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_commit))
+    }
+
+    it "should have the commit as revision" do
+      expect(repo.rev).to eq("46c4c14594057dbcfaf27e7e7c8c164d3f0ce3f1")
+    end
+  end
+
+  context "explicit version" do
+    let(:with_version) {
+      <<-EOF
+      git: https://github.com/crystal-lang/json_mapping.cr.git
+      version: 0.1.1
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_version))
+    }
+
+    it "should prefix version references with a v" do
+      expect(repo.rev).to eq("v0.1.1")
+    end
+  end
+
+  context "semver with pre-release" do
+    let(:with_pre_release) {
+      <<-EOF
+      git: https://github.com/crystal-lang/crystal.git
+      version: 1.0.0-beta1
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_pre_release))
+    }
+
+    it "should handle semver with pre-release correctly" do
+      expect(repo.rev).to eq("v1.0.0-beta1")
+    end
+  end
+
+  context "semver with build metadata" do
+    let(:with_build_metadata) {
+      <<-EOF
+      git: https://github.com/crystal-lang/crystal.git
+      version: 1.0.0+20130313144700
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_build_metadata))
+    }
+
+    it "should handle semver with build metadata correctly" do
+      expect(repo.rev).to eq("v1.0.0+20130313144700")
+    end
+  end
+
+  context "git commit in version" do
+    let(:with_commit_version) {
+      <<-EOF
+      git: https://github.com/crystal-lang/crystal.git
+      version: 1.0.0+git.commit.abcdef1234567890
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_commit_version))
+    }
+
+    it "should handle git commit in version correctly" do
+      expect(repo.rev).to eq("abcdef1234567890")
+    end
+  end
+
+  context "malformed yaml" do
+    let(:malformed_yaml) {
+      <<-EOF
+      git: https://github.com/crystal-lang/crystal.git
+      version 1.0.0
+      EOF
+    }
+
+    it "should raise an error for malformed YAML" do
+      expect_raises(YAML::ParseException) do
+        Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(malformed_yaml))
+      end
+    end
+  end
+
+  context "empty file" do
+    let(:empty_file_content) {
+      ""
+    }
+
+    it "should raise an error for empty file" do
+      expect_raises(YAML::ParseException) do
+        Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(empty_file_content))
+      end
+    end
+  end
+end

spec/repo_mercurial_spec.cr

@@ -0,0 +1,103 @@
+require "./spec_helper"
+
+Spectator.describe Crystal2Nix::Repo do
+  context "commit" do
+    let(:with_commit) {
+      <<-EOF
+      hg:  https://selenic.com/repo/hello
+      version: 0.1.0+hg.commit.a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6q7r8s9t0
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_commit))
+    }
+
+    it "should have the commit as revision" do
+      expect(repo.rev).to eq("a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6q7r8s9t0")
+    end
+  end
+
+  context "explicit version" do
+    let(:with_version) {
+      <<-EOF
+      hg:  https://selenic.com/repo/hello
+      version: 2.0.0
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_version))
+    }
+
+    it "should prefix version references with a v" do
+      expect(repo.rev).to eq("v2.0.0")
+    end
+  end
+
+  context "semver with pre-release" do
+    let(:with_pre_release) {
+      <<-EOF
+      hg:  https://selenic.com/repo/hello
+      version: 1.2.3-beta.1
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_pre_release))
+    }
+
+    it "should handle semver with pre-release correctly" do
+      expect(repo.rev).to eq("v1.2.3-beta.1")
+    end
+  end
+
+  context "semver with build metadata" do
+    let(:with_build_metadata) {
+      <<-EOF
+      hg:  https://selenic.com/repo/hello
+      version: 1.0.0+build.12345
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_build_metadata))
+    }
+
+    it "should handle semver with build metadata correctly" do
+      expect(repo.rev).to eq("v1.0.0+build.12345")
+    end
+  end
+
+  context "hg commit in version" do
+    let(:with_commit_version) {
+      <<-EOF
+      hg:  https://selenic.com/repo/hello
+      version: 1.0.0+hg.commit.abcdef1234567890abcdef1234567890abcdef12
+      EOF
+    }
+
+    let(:repo) {
+      Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(with_commit_version))
+    }
+
+    it "should handle hg commit in version correctly" do
+      expect(repo.rev).to eq("abcdef1234567890abcdef1234567890abcdef12")
+    end
+  end
+
+  context "malformed yaml" do
+    let(:malformed_yaml) {
+      <<-EOF
+      hg:  https://selenic.com/repo/hello
+      version 1.0.0
+      EOF
+    }
+
+    it "should raise an error for malformed YAML" do
+      expect_raises(YAML::ParseException) do
+        Crystal2Nix::Repo.new(Crystal2Nix::Shard.from_yaml(malformed_yaml))
+      end
+    end
+  end
+end

src/crystal2nix.cr

@@ -1,8 +1,3 @@
-# This module defines the Crystal2Nix project, which converts Crystal project dependencies 
-# into Nix expressions for use with the Nix package manager. The project leverages various 
-# dependencies such as JSON, YAML, URI parsing, and a custom version management module. 
-# The main functionality is organized into separate components like data handling, 
-# repository management, and worker processes.
 require "json"
 require "yaml"
 require "option_parser"

src/data.cr

@@ -1,5 +1,5 @@
 module Crystal2Nix
-  class PrefetchJSON
+  class GitPrefetchJSON
     include JSON::Serializable
 
     property sha256 : String
@@ -15,7 +15,8 @@ module Crystal2Nix
   class Shard
     include YAML::Serializable
 
-    property git : String
+    property git : String?
+    property hg : String?
     property version : String
   end
 end