Refactor out some functions I'm going to use in other git-bb-* scripts

bin/bbhelpers.rb

@@ -0,0 +1,34 @@
+#!/usr/bin/env ruby
+#
+# Copyright 2016 Joe Block <jpb@unixorn.net>
+#
+# License: Apache 2.0, see LICENSE in this repository.
+#
+# Helper functions that are common across the git-bb-* scripts. Admittedly
+# not very pretty.
+
+def git_branch
+  `git rev-parse --abbrev-ref HEAD`.chomp
+end
+
+def git_commit
+  `git rev-parse HEAD`.chomp
+end
+
+def git_remote
+  `git config --get remote.origin.url`.chomp
+end
+
+def git_root
+  `git rev-parse --show-toplevel`.chomp
+end
+
+def openURL(url)
+  if RUBY_PLATFORM.index('darwin')
+    open_command = 'open'
+  end
+  if RUBY_PLATFORM.index('linux')
+    open_command = 'xdg-open'
+  end
+  system("#{open_command} #{url}")
+end

bin/git-bb-open

@@ -4,31 +4,22 @@
 #
 # Copyright 2016 Joe Block <jpb@unixorn.net>
 #
-# License: Apache 2.0
+# License: Apache 2.0, see LICENSE in this repository.
+
+def push_loadpath
+  $: << File.expand_path(File.dirname(caller.first))
+end
+
+push_loadpath
 
 require 'pathname'
-
-def git_branch
-  `git rev-parse --abbrev-ref HEAD`.chomp
-end
-
-def git_commit
-  `git rev-parse HEAD`.chomp
-end
-
-def git_remote
-  `git config --get remote.origin.url`.chomp
-end
-
-def git_root
-  `git rev-parse --show-toplevel`.chomp
-end
+require 'bbhelpers'
 
 def constructURL
   remote = git_remote()
   bbloc = remote.index('bitbucket.org')
   if not bbloc
-    "This repo does not have a fetch remote at bitbucket"
+    "git-bb-open only works for repositories with their origin remote on bitbucket.org"
     exit 1
   end
   url_prefix="https://#{remote[bbloc..-5]}/src/#{git_commit}"
@@ -46,16 +37,6 @@ def constructURL
   url = url_prefix + path + "?at=#{git_branch}"
 end
 
-def openURL(url)
-  if RUBY_PLATFORM.index('darwin')
-    open_command = 'open'
-  end
-  if RUBY_PLATFORM.index('linux')
-    open_command = 'xdg-open'
-  end
-  system("#{open_command} #{url}")
-end
-
 if ARGV.length > 1
   puts 'Usage: git-bb-open without args to open the current directory on bitbucket, viewing the current branch.'
   puts '       git-bb-open <path> to open <path> on bitbucket, viewing the current branch'