From cc26c266a03ebc4b5c70b7f35ba913f582e98cb5 Mon Sep 17 00:00:00 2001
From: rkiel <cygnus@pobox.com>
Date: Tue, 2 Jun 2015 23:28:43 -0400
Subject: [PATCH] started refactoring xgrep

---
 bin/xgrep              |  13 +++++
 lib/xgrep/commander.rb | 122 +++++++++++++++++++++++++++++++++++++++++
 lib/xgrep/rails_env.rb |   6 ++
 3 files changed, 141 insertions(+)
 create mode 100644 lib/xgrep/commander.rb
 create mode 100644 lib/xgrep/rails_env.rb

diff --git a/bin/xgrep b/bin/xgrep
index 5b04641..f30d043 100755
--- a/bin/xgrep
+++ b/bin/xgrep
@@ -1,5 +1,18 @@
 #!/usr/bin/env ruby
 
+require_relative '../lib/xgrep/commander'
+require_relative '../lib/xgrep/rails_env'
+
+
+commander = Commander.new
+if commander.valid?
+  commander.execute
+else
+  commander.help
+end
+
+exit
+
 ands    = [ ]
 ors     = [ ]
 nots    = [ ]
diff --git a/lib/xgrep/commander.rb b/lib/xgrep/commander.rb
new file mode 100644
index 0000000..c52581b
--- /dev/null
+++ b/lib/xgrep/commander.rb
@@ -0,0 +1,122 @@
+require 'ostruct'
+require 'optparse'
+
+class Commander
+
+  attr_accessor :options
+
+  def initialize
+    @options = OpenStruct.new
+    options.debug = false
+    options.git_grep = %w{-E}
+    options.pathspec = []
+    options.environment = default_environment
+
+    @option_parser = OptionParser.new do |op|
+      op.banner = "Usage: xgrep options term(s)"
+
+      op.on('-a','--asset') do |argument|
+        options.pathspec << :asset
+      end
+
+      op.on('-b','--db') do |argument|
+        options.pathspec << :db
+      end
+
+      op.on('-c','--controller') do |argument|
+        options.pathspec << :controller
+      end
+
+      op.on('-d','--[no-]debug') do |argument|
+        options.debug = argument
+      end
+
+      op.on('-f','--file') do |argument|
+        options.git_grep << "-L"
+      end
+
+      op.on('-g','--config') do |argument|
+        options.pathspec << :config
+      end
+
+      op.on('-i','--invert') do |argument|
+        options.git_grep << '-v'
+      end
+
+      op.on('-l','--lib') do |argument|
+        options.pathspec << :lib
+      end
+
+      op.on('-m','--model') do |argument|
+        options.pathspec << :model
+      end
+
+      op.on('-o','--core') do |argument|
+        options.pathspec << :core
+      end
+
+      op.on_tail('-h','--help') do |argument|
+        puts op
+        exit
+      end
+
+    end
+
+    @option_parser.parse!(ARGV)
+    options.terms = ARGV # must be after parse!
+  end
+
+  def valid?
+    options.terms.size > 0
+  end
+
+  def help
+    puts @option_parser
+    exit
+  end
+
+  def execute
+    env = Object.const_get(options.environment).new
+    env.update_pathspec(options.pathspec)
+
+    ands = []
+    ors  = []
+    nots = []
+    current_op = ands
+
+    options.terms.each do |x|
+      case x
+      when 'and'               then current_op = ands
+      when 'or'                then current_op = ors
+      when 'not'               then current_op = nots
+      when /^-+(and|or|not)$/i then current_op << $1
+      else                          current_op << x
+      end
+    end
+
+    ands = ands.map { |x| "-e \"#{x}\"" }
+    ors  = ors.map { |x| "-e \"#{x}\"" }
+    nots = nots.map { |x| "-e \"#{x}\"" }
+
+    ands << "\\( #{ors.join(' --or ')} \\)"        unless ors.empty?
+    ands << "--not \\( #{nots.join(' --or ')} \\)" unless nots.empty?
+
+    command = "git grep #{options.git_grep.join(' ')} #{ands.join(' --and ')} -- #{env.pathspec.sort.join(' ')}"
+  end
+
+  private
+
+  def default_environment
+    if File.exist?('./.xgrep')
+      "CustomEnv"
+    elsif File.exist?("Gemfile") and File.exist?("package.json")
+      "NodeEnv"
+    elsif File.exist?("Gemfile")
+      "RailsEnv"
+    elsif File.exist?("package.json")
+      "NodeEnv"
+    else
+      "RailsEnv"
+    end
+  end
+end
diff --git a/lib/xgrep/rails_env.rb b/lib/xgrep/rails_env.rb
new file mode 100644
index 0000000..dda65d0
--- /dev/null
+++ b/lib/xgrep/rails_env.rb
@@ -0,0 +1,6 @@
+class RailsEnv
+
+  def update_pathspec ( pathspec )
+  end
+
+end