[closes #11] using highline to parse command line options

README.md

@@ -20,8 +20,8 @@ It browses the repository and outputs html page with statistics.
 
 ### Generator
 
-    $ git_stats repo_path output_directory language_code first_commit_sha last_commit_sha 
-    $ favorite_browser output_directory/index.html
+    $ git_stats
+    <follow instructions on the screen>
 
 ### API usage example
 

bin/git_stats

@@ -8,4 +8,4 @@ $LOAD_PATH.unshift(lib) if File.directory?(lib) && !$LOAD_PATH.include?(lib)
 require "git_stats/cli"
 
 cli = GitStats::CLI.new
-cli.start(*ARGV)
+cli.start

git_stats.gemspec

@@ -25,4 +25,5 @@ Gem::Specification.new do |gem|
   gem.add_dependency('haml')
   gem.add_dependency('lazy_high_charts')
   gem.add_dependency('i18n')
+  gem.add_dependency('highline')
 end

lib/git_stats/base.rb

@@ -8,6 +8,7 @@ require 'git_stats/i18n'
 require 'git_stats/by_field_finder'
 require 'git_stats/cli'
 require 'git_stats/generator'
+require 'git_stats/validator'
 
 require 'git_stats/git_data/activity'
 require 'git_stats/git_data/author'

lib/git_stats/cli.rb

@@ -1,13 +1,25 @@
 # -*- encoding : utf-8 -*-
 require "git_stats"
+require "highline/import"
 
 class GitStats::CLI
 
-  def start(*args)
-    raise "Wrong number of arguments\nUsage: git_stats repo_path output_path <output_lang>" unless [2, 3, 4, 5].include? args.size
+  def start
 
-    repo_path, out_path, lang, first_commit_sha, last_commit_sha = args
-    I18n.locale = lang || :en
+    repo_path = ask("Repo path?  ") { |q|
+      q.default = "."
+      q.validate = lambda { |p| GitStats::Validator.new.valid_repo_path?(p) }
+      q.responses[:not_valid] = "Given path is not a git repository, try again"
+    }
+
+    out_path = ask("Output dir?  ") { |q| q.default = "./git_stats" }
+    I18n.locale = ask("Language?  ") { |q| q.default = "en"; q.answer_type = Symbol }
+    specify_range = agree("Want to specify commits range?  ") { |q| q.default = "no" }
+
+    if specify_range
+      first_commit_sha = ask("Starting commit sha?  ") { |q| q.default = nil }
+      last_commit_sha = ask("Ending commit sha?  ") { |q| q.default = "HEAD" }
+    end
 
     GitStats::Generator.new(repo_path, out_path, first_commit_sha, last_commit_sha) { |g|
       g.add_command_observer { |command, result| puts "#{command}" }

lib/git_stats/generator.rb

@@ -4,7 +4,7 @@ module GitStats
     delegate :add_command_observer, to: :@repo
     delegate :render_all, to: :@view
 
-    def initialize(repo_path, out_path, first_commit_sha, last_commit_sha)
+    def initialize(repo_path, out_path, first_commit_sha = nil, last_commit_sha = "HEAD")
       validate_repo_path(repo_path)
 
       @repo = GitData::Repo.new(path: repo_path, first_commit_sha: first_commit_sha, last_commit_sha: last_commit_sha)
@@ -18,7 +18,7 @@ module GitStats
 
 
     def validate_repo_path(repo_path)
-      raise ArgumentError, "#{repo_path} is not a git repository" unless (Dir.exists?("#{repo_path}/.git") || File.exists?("#{repo_path}/HEAD"))
+      raise ArgumentError, "#{repo_path} is not a git repository" unless Validator.new.valid_repo_path?(repo_path)
     end
 
   end

lib/git_stats/git_data/repo.rb

@@ -68,7 +68,7 @@ module GitStats
       end
 
       def commit_range
-        @first_commit_sha ? "#@first_commit_sha..#{last_commit_sha}" : last_commit_sha
+        @first_commit_sha.blank? ? last_commit_sha : "#@first_commit_sha..#{last_commit_sha}"
       end
 
       def last_commit_sha

lib/git_stats/validator.rb

@@ -0,0 +1,10 @@
+# -*- encoding : utf-8 -*-
+module GitStats
+  class Validator
+
+    def valid_repo_path?(repo_path)
+      Dir.exists?("#{repo_path}/.git") || File.exists?("#{repo_path}/HEAD")
+    end
+
+  end
+end

spec/git_data/cli_spec.rb

@@ -1,20 +0,0 @@
-# -*- encoding : utf-8 -*-
-require 'spec_helper'
-
-describe GitStats::CLI do
-  let(:repo_path) { 'repo_path' }
-  let(:out_path) { 'out_path' }
-
-  it 'should invoke generator with console arguments given' do
-    generator = double('generator')
-    GitStats::Generator.should_receive(:new).with(repo_path, out_path).and_return(generator)
-    generator.should_receive(:render_all)
-
-    subject.start(repo_path, out_path)
-  end
-
-  it 'should raise error when 2 arguments are not given' do
-    expect { subject.start("only one argument") }.to raise_error
-    expect { subject.start("too", "much", "arguments") }.to raise_error
-  end
-end

spec/git_data/generator_spec.rb

@@ -15,7 +15,7 @@ describe GitStats::Generator do
 
   it 'should pass command observer to repo' do
     repo = double('repo')
-    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path).and_return(repo)
+    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path, first_commit_sha: nil, last_commit_sha: "HEAD").and_return(repo)
 
     generator = GitStats::Generator.new(repo_path, out_path)
 
@@ -27,7 +27,7 @@ describe GitStats::Generator do
 
   it 'should render all templates with view data for this repo' do
     repo = double('repo')
-    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path).and_return(repo)
+    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path, first_commit_sha: nil, last_commit_sha: "HEAD").and_return(repo)
 
     view_data = double('view_data')
     GitStats::StatsView::ViewData.should_receive(:new).with(repo).and_return(view_data)