Initial commit

.editorconfig

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+root = true
+
+[*.cr]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true

.gitignore

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+/docs/
+/lib/
+/bin/
+/.shards/
+*.dwarf
+
+# Libraries don't need dependency lock
+# Dependencies will be locked in applications that use them
+/shard.lock

LICENSE

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+MIT License
+
+Copyright (c) 2023 Michael Wagner <[email protected]>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# lucky_template
+
+TODO: Write a description here
+
+## Installation
+
+1. Add the dependency to your `shard.yml`:
+
+   ```yaml
+   dependencies:
+     lucky_template:
+       github: mdwagner/lucky_template
+   ```
+
+2. Run `shards install`
+
+## Usage
+
+```crystal
+require "lucky_template"
+```
+
+TODO: Write usage instructions here
+
+## Development
+
+TODO: Write development instructions here
+
+## Contributing
+
+1. Fork it (<https://github.com/mdwagner/lucky_template/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
+
+## Contributors
+
+- [Michael Wagner](https://github.com/mdwagner) - creator and maintainer

shard.yml

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+name: lucky_template
+version: 0.1.0
+
+authors:
+  - Michael Wagner <[email protected]>
+
+crystal: ">= 1.0.0"
+
+license: MIT

spec/lucky_template_spec.cr

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+require "./spec_helper"
+
+describe LuckyTemplate do
+  # TODO: Write tests
+
+  it "works" do
+    false.should eq(true)
+  end
+end

spec/spec_helper.cr

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+require "spec"
+require "../src/lucky_template"

src/lucky_template.cr

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+require "file_utils"
+
+module LuckyTemplate
+  extend self
+
+  VERSION = {{ `shards version #{__DIR__}`.chomp.stringify }}
+
+  module LuckyTemplateable
+    abstract def to_lucky_template(io : IO) : Nil
+  end
+
+  alias LuckyFileType = String | LuckyTemplateable | Nil
+
+  class LuckyFile
+    getter name : String
+
+    def initialize(@name, @file : LuckyFileType)
+    end
+
+    def to_s(io : IO) : Nil
+      case @file
+      in LuckyTemplateable
+        @file.to_lucky_template(io)
+      in String, Nil
+        @file.to_s(io)
+      end
+    end
+  end
+
+  class InvalidFolderName < Exception
+    def initialize(message = "Invalid folder name", cause : Exception? = nil)
+      super(message, cause: cause)
+    end
+  end
+
+  class LuckyFolder
+    alias FileType = LuckyFile | LuckyFolder
+    getter name : String
+    getter files = [] of FileType
+
+    # Writes folder to disk at path
+    def self.write!(location : Path, folder : LuckyFolder) : Nil
+      path = location.expand
+      FileUtils.mkdir_p(path)
+      folder.write_to_disk!(path)
+    end
+
+    # Writes folder from path to disk at path dirname
+    def self.write!(location : Path, & : LuckyFolder ->) : Nil
+      path = location.expand
+      dirname = Path.new(path.dirname)
+      FileUtils.mkdir_p(dirname)
+      folder = LuckyFolder.new(path.basename)
+      yield folder
+      folder.write_to_disk!(dirname)
+    end
+
+    def initialize(@name : String)
+      raise InvalidFolderName.new if @name.empty?
+    end
+
+    def add_file(name : String, file : LuckyFileType) : Nil
+      add_file(LuckyFile.new(name, file))
+    end
+
+    def add_file(file : LuckyFile) : Nil
+      @files << file
+    end
+
+    def add_folder(name : String) : Nil
+      add_folder(name) { }
+    end
+
+    def add_folder(name : String, & : LuckyFolder ->) : Nil
+      folder = LuckyFolder.new(name)
+      yield folder
+      @files << folder
+    end
+
+    protected def write_to_disk!(path : Path) : Nil
+      write_folder_to_disk!(path, self)
+    end
+
+    private def write_file_to_disk!(path : Path, file : LuckyFile) : Nil
+      File.open(path.join(file.name), "w") do |io|
+        file.to_s(io)
+      end
+    end
+
+    private def write_folder_to_disk!(path : Path, folder : LuckyFolder) : Nil
+      new_path = path.join(folder.name)
+      Dir.mkdir_p(new_path)
+      folder.files.each do |file|
+        case file
+        in LuckyFile
+          write_file_to_disk!(new_path, file)
+        in LuckyFolder
+          write_folder_to_disk!(new_path, file)
+        end
+      end
+    end
+  end
+end