Script for automatically versioning builds. Run this in a build phase.

git_versioning

#!/usr/bin/env ruby

built_products_dir = ENV['BUILT_PRODUCTS_DIR']
infoplist_path     = ENV['INFOPLIST_PATH']
dsym_dir           = ENV['DWARF_DSYM_FOLDER_PATH']
dsym_path          = ENV['DWARF_DSYM_FILE_NAME']

info_plist = File.join(built_products_dir, infoplist_path)
dsym_info_plist = File.join(dsym_dir, dsym_path, "Contents", "Info.plist")

git_sha      = `git rev-parse --short HEAD`.strip
commit_count = `git rev-list HEAD --count`.strip

update_git_version_command    = "/usr/libexec/PlistBuddy -c \"Set :GITVersion #{git_sha}\" \"#{info_plist}\""
update_bundle_version_command = "/usr/libexec/PlistBuddy -c \"Set :CFBundleVersion #{commit_count}\" \"#{info_plist}\""

update_dsym_git_command    = "/usr/libexec/PlistBuddy -c \"Add :GITVersion string #{git_sha}\" \"#{dsym_info_plist}\""
update_dsym_version_command   = "/usr/libexec/PlistBuddy -c \"Set :CFBundleVersion #{commit_count}\" \"#{dsym_info_plist}\""

puts update_git_version_command
system(update_git_version_command)

puts update_bundle_version_command
system(update_bundle_version_command)

puts update_dsym_git_command
system(update_dsym_git_command)

puts update_dsym_version_command
system(update_dsym_version_command)