✨ Gem creation + hello world pdf

.gitignore

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+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+
+# rspec failure tracking
+.rspec_status

.rspec

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+--format documentation
+--color
+--require spec_helper

.ruby-version

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+3.0.2

.travis.yml

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+---
+sudo: false
+language: ruby
+cache: bundler
+rvm:
+  - 2.6.3
+before_install: gem install bundler -v 1.17.2

Gemfile

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+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# Specify your gem's dependencies in agenda_pdf.gemspec
+gemspec
+
+gem 'prawn', '~> 2.4'
+
+ruby '3.0.2'

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    agenda_pdf (0.1.0)
+      prawn (~> 2.4)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.5.0)
+    pdf-core (0.9.0)
+    prawn (2.4.0)
+      pdf-core (~> 0.9.0)
+      ttfunk (~> 1.7)
+    rake (10.5.0)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
+    rspec-core (3.10.1)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-mocks (3.10.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-support (3.10.3)
+    thor (1.2.1)
+    ttfunk (1.7.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  agenda_pdf!
+  bundler (~> 2.2.22)
+  prawn (~> 2.4)
+  rake (~> 10.0)
+  rspec (~> 3.0)
+  thor (~> 1.2)
+
+RUBY VERSION
+   ruby 3.0.2p107
+
+BUNDLED WITH
+   2.2.22

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2022 Ervan Silvert
+
+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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+# AgendaPdf
+
+Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/agenda_pdf`. To experiment with that code, run `bin/console` for an interactive prompt.
+
+TODO: Delete this and the text above, and describe your gem
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'agenda_pdf'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install agenda_pdf
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/agenda_pdf.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

Rakefile

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+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
+
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec

agenda_pdf.gemspec

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+
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "agenda_pdf/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "agenda_pdf"
+  spec.version       = AgendaPdf::VERSION
+  spec.authors       = ["Ervan Silvert"]
+  spec.email         = ["ervan@derniercri.io"]
+
+  spec.summary       = %q{Allows to create a pdf file for each day of a period}
+  spec.description   = %q{Allows to create a pdf file for each day of a period}
+  spec.homepage      = "https://gitlab.com/esilvert/agenda_pdf"
+  spec.license       = "MIT"
+
+  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
+  # to allow pushing to a single host or delete this section to allow pushing to any host.
+  if spec.respond_to?(:metadata)
+    spec.metadata["allowed_push_host"] = "https://gitlab.com/esilvert/agenda_pdf/CHANGELOG.md"
+
+    spec.metadata["homepage_uri"] = spec.homepage
+    spec.metadata["source_code_uri"] = "https://gitlab.com/esilvert/agenda_pdf/CHANGELOG.md"
+    spec.metadata["changelog_uri"] = "https://gitlab.com/esilvert/agenda_pdf/CHANGELOG.md"
+  else
+    raise "RubyGems 2.0 or newer is required to protect against " \
+      "public gem pushes."
+  end
+
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  end
+  spec.bindir        = "bin"
+  spec.executables = ['agenda_pdf']
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 2.2.22"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rspec", "~> 3.0"
+
+  spec.add_dependency "prawn", "~> 2.4"
+end

bin/agenda_pdf

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+#!/usr/bin/env ruby
+require 'agenda_pdf'
+
+AgendaPdf.execute(ARGV)

bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "agenda_pdf"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start(__FILE__)

bin/setup

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+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here

lib/agenda_pdf.rb

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+require 'date'
+
+require "agenda_pdf/version"
+require "agenda_pdf/options_parser"
+require "agenda_pdf/pdf_generator"
+
+module AgendaPdf
+  class Error < StandardError; end
+
+  def self.execute(argv)
+    options = OptionsParser.new
+
+    PdfGenerator.new(options.path) do
+      text 'hello world'
+      text argv.to_s
+    end
+  end
+end

lib/agenda_pdf/options_parser.rb

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+require 'optparse'
+require 'pathname'
+
+class OptionsParser  
+  OPTIONS = %i[month verbose path].freeze
+
+  DEFAULT_PATH = ENV['PWD'] + '/agenda.pdf'
+  
+  def initialize
+    @options = {}
+
+    parse_options
+  end
+
+  def path
+    @options[:path] || DEFAULT_PATH
+  end
+
+  def month
+    @options[:month] || DateTime.now.month
+  end
+
+  def verbose
+    @options[:verbose]
+  end
+  
+  private
+
+  def parse_options        
+    OptionParser.new do |opts|
+      opts.banner = "Usage: agenda_pdf [options]"
+
+      opts.on("-m", "--month", "Generates a pdf for current month") do |v|
+        @options[:month] = DateTime.parse(v) rescue DateTime.now.month
+      end
+      
+      opts.on("-o", "--path", "The output file path") do |v|
+        @options[:path] = Pathname.new(v)
+      end
+      
+      opts.on("-v", "--[no-]verbose", "Run verbosely") do |v|
+        @options[:verbose] = v || false
+      end
+    end.parse!
+  end
+end

lib/agenda_pdf/pdf_generator.rb

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+require 'prawn'
+
+class PdfGenerator < Prawn::Document
+  def initialize(path, &block)
+    super()
+    initialize_document
+
+    instance_eval &block
+    
+    finalize_document(path)
+  end
+
+  protected
+
+  def initialize_document; end
+  
+  def finalize_document(path)
+    pp "Rending pdf at #{path}"
+    render_file(path)
+  end
+end

lib/agenda_pdf/version.rb

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+module AgendaPdf
+  VERSION = "0.1.0"
+end

spec/agenda_pdf_spec.rb

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+RSpec.describe AgendaPdf do
+  it "has a version number" do
+    expect(AgendaPdf::VERSION).not_to be nil
+  end
+
+  it "does something useful" do
+    expect(false).to eq(true)
+  end
+end

spec/spec_helper.rb

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+require "bundler/setup"
+require "agenda_pdf"
+
+RSpec.configure do |config|
+  # Enable flags like --only-failures and --next-failure
+  config.example_status_persistence_file_path = ".rspec_status"
+
+  # Disable RSpec exposing methods globally on `Module` and `main`
+  config.disable_monkey_patching!
+
+  config.expect_with :rspec do |c|
+    c.syntax = :expect
+  end
+end