#!/usr/bin/env ruby
#
# Load rbot from this directory. (No need to install it with setup.rb)
#

SCM_DIR = __dir__
puts "Running from #{SCM_DIR}"

$LOAD_PATH.unshift File.join(SCM_DIR, 'lib')

$version = '0.9.15'

pwd = Dir.pwd
begin
  Dir.chdir SCM_DIR

  if File.exist? '.git'
    begin
      git_out = `git log -1 --pretty=raw | git name-rev --annotate-stdin`.split("\n")
      commit, branch_spec = git_out.first.scan(/^commit (\S+)(?: \((\S+)\))?$/).first
      $version_timestamp = git_out[4].split[-2].to_i
      subject = git_out[6].strip rescue ''
      subject[77..-1] = '...' if subject.length > 80
      rev = "revision #{commit[0, 7]}"
      rev << " [#{subject}]" unless subject.empty?
      changes = `git diff-index --stat HEAD`.split("\n").last.split(', ').first rescue nil
      rev << ", #{changes.strip}" if changes
      if branch_spec
        tag, branch, offset = branch_spec.scan(/^(?:(tag)s\/)?(\S+?)(?:^0)?(?:~(\d+))?$/).first
        tag ||= 'branch'
        branch << " #{tag}"
        branch << "-#{offset}" if offset
      else
        branch = 'unknown branch'
      end
    rescue => e
      puts e.inspect
      branch = 'unknown branch'
      rev = 'unknown revision'
    end
    $version << " (#{branch}, #{rev})"
  elsif File.directory? File.join(SCM_DIR, '.svn')
    rev = ' (unknown revision)'
    begin
      svn_out = `svn info`
      rev = " (revision #{$1}" if svn_out =~ /Last Changed Rev: (\d+)/
      svn_st = `svn st #{SCM_DIR}`
      rev << ', local changes' if svn_st =~ /^[MDA] /
      rev << ')'
    rescue => e
      puts e.inspect
    end
    $version += rev
  end
ensure
  Dir.chdir pwd
end

module Irc
  class Bot
    module Config
      @@datadir = File.join SCM_DIR, 'data/rbot'
      @@coredir = File.join SCM_DIR, 'lib/rbot/core'
    end
  end
end

load File.join(SCM_DIR, 'bin/rbot')