(List
  (Com {[LIT_CHARS set]} {[LIT_CHARS -eu]})
  (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[] bindings=[('PATH', {[DQ [LIT_CHARS "/usr/bin:/bin:/usr/sbin:/sbin"]]})])
  (Com {[LIT_CHARS unset]} {[LIT_CHARS BASH_ENV]} {[LIT_CHARS CDPATH]} {[LIT_CHARS ENV]} {[LIT_CHARS GLOBIGNORE]} {[LIT_CHARS IFS]} {[LIT_CHARS POSIXLY_CORRECT]})
  (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[{[LIT_CHARS -n]}, {[LIT_CHARS SHELLOPTS]}] bindings=[])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ME', {[DQ [ComSub (Com {[LIT_CHARS basename]} {[DQ [VarSub 0]]})]]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[{[LIT_CHARS ME]}] bindings=[])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('SCRIPT_DIR', {[DQ [ComSub (Com {[LIT_CHARS dirname]} {[DQ [VarSub 0]]})]]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[{[LIT_CHARS SCRIPT_DIR]}] bindings=[])
  (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('DIRDIFFER', {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /dirdiffer.sh]]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('PKG_DMG', {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /pkg-dmg]]})])
  (FunctionDef err []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('error', {[DQ [VarSub 1]]})])
      (Com {[LIT_CHARS echo]} {[DQ [VarSub ME][LIT_CHARS ": "][VarSub error]]}
        <
        (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
        >
      )
    )
  )
  (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS -a]}, {[LIT_CHARS g_cleanup]}, {[LIT_CHARS g_cleanup_mount_points]}] bindings=[])
  (FunctionDef cleanup []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('status', {[VarSub ?]})])
      (Com {[LIT_CHARS trap]} {[LIT_CHARS -]} {[LIT_CHARS EXIT]})
      (Com {[LIT_CHARS trap]} {[SQ ]} {[LIT_CHARS HUP]} {[LIT_CHARS INT]} {[LIT_CHARS QUIT]} {[LIT_CHARS TERM]})
      (If
        (DBracket {B2 BINARY_INT_GE {[VarSub status]} {[LIT_CHARS 128]}})
        (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "Caught signal "][ArithSub {A2 AS_OP_MINUS {A Atom NODE_ARITH_WORD {[VarSub status]}} {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 128]}}}]]})
      )
      (If
        (DBracket {B2 BINARY_INT_GT {[DQ [VarSub g_cleanup_mount_points bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]]]} {[LIT_CHARS 0]}})
        (List
          (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS mount_point]}] bindings=[])
          (For mount_point [{[DQ [VarSub g_cleanup_mount_points bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}})]]}])
            (AndOr OP_OR_IF
              (Com {[LIT_CHARS hdiutil]} {[LIT_CHARS detach]} {[DQ [VarSub mount_point]]} {[LIT_CHARS -force]}
                <
                (DescriptorRedirectNode target={[LIT_CHARS /dev/null]} <REDIR_GREATAND ">&"> 1),
                >
              )
              (Com {[LIT_CHARS true]})
            )
          )
        )
      )
      (If
        (DBracket {B2 BINARY_INT_GT {[DQ [VarSub g_cleanup bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]]]} {[LIT_CHARS 0]}})
        (Com {[LIT_CHARS rm]} {[LIT_CHARS -rf]} {[DQ [VarSub g_cleanup bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}})]]})
      )
      (Com {[LIT_CHARS exit]} {[VarSub status]})
    )
  )
  (FunctionDef mount_dmg []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('dmg', {[DQ [VarSub 1]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('mount_point', {[DQ [VarSub 2]]})])
      (If
        (Pipeline!
          (Com {[LIT_CHARS hdiutil]} {[LIT_CHARS attach]} {[DQ [VarSub 1]]} {[LIT_CHARS -mountpoint]} {[DQ [VarSub 2]]} {[LIT_CHARS -nobrowse]} {[LIT_CHARS -owners]} {[LIT_CHARS off]}
            <
            (FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT ">"> 1),
            >
          )
        )
        (Com {[LIT_CHARS return]} {[VarSub ?]})
      )
    )
  )
  (FunctionDef make_patch_fs []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('product_name', {[DQ [VarSub 1]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_fs', {[DQ [VarSub 2]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_fs', {[DQ [VarSub 3]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_fs', {[DQ [VarSub 4]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('APP_NAME', {[DQ [VarSub product_name][LIT_CHARS .app]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('APP_NAME_RE', {[DQ [VarSub product_name][\ LIT_ESCAPED_CHAR "\\\\"][LIT_CHARS .app]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('APP_PLIST', {[DQ [LIT_CHARS Contents/Info]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('APP_VERSION_KEY', {[DQ [LIT_CHARS CFBundleShortVersionString]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('APP_BUNDLEID_KEY', {[DQ [LIT_CHARS CFBundleIdentifier]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('KS_VERSION_KEY', {[DQ [LIT_CHARS KSVersion]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('KS_PRODUCT_KEY', {[DQ [LIT_CHARS KSProductID]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('KS_CHANNEL_KEY', {[DQ [LIT_CHARS KSChannelID]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('VERSIONS_DIR', {[DQ [LIT_CHARS Contents/Versions]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('BUILD_RE', {[DQ [LIT_CHARS "^[0-9]+"][\ LIT_ESCAPED_CHAR "\\\\"][LIT_CHARS ".[0-9]+"][\ LIT_ESCAPED_CHAR "\\\\"][LIT_CHARS ".([0-9]+)"][\ LIT_ESCAPED_CHAR "\\\\"][LIT_CHARS ".[0-9]+"][\ LIT_ESCAPED_CHAR "\\$"]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=2 words=[] bindings=[('MIN_BUILD', {[LIT_CHARS 434]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('product_url', {[DQ [LIT_CHARS "http://www.google.com/chrome/"]]})])
      (If
        (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub product_name]]} {[DQ [LIT_CHARS "Google Chrome Canary"]]}})
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('product_url', {[DQ [LIT_CHARS "http://tools.google.com/dlpage/chromesxs"]]})])
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_app_path', {[DQ [VarSub old_fs][LIT_CHARS /][VarSub APP_NAME]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_app_plist', {[DQ [VarSub old_app_path][LIT_CHARS /][VarSub APP_PLIST]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS old_app_version]}] bindings=[])
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('old_app_version', {[DQ [ComSub (Com {[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub old_app_plist]]} {[DQ [VarSub APP_VERSION_KEY]]})]]})])
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not read old app version"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 10]})
        )
      )
      (If
        (Pipeline!
          (DBracket {B2 BINARY_STRING_TILDE_EQUAL {[DQ [VarSub old_app_version]]} {[VarSub BUILD_RE]}})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "old app version not of expected format"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 10]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_app_version_build', {[DQ [VarSub BASH_REMATCH bracket_op=(Index {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 1]}})]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS old_app_bundleid]}] bindings=[])
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('old_app_bundleid', {[DQ [ComSub (Com {[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub old_app_plist]]} {[DQ [VarSub APP_BUNDLEID_KEY]]})]]})])
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not read old app bundle ID"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 10]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_ks_plist', {[DQ [VarSub old_app_plist]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS old_ks_version]}] bindings=[])
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('old_ks_version', {[DQ [ComSub (Com {[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub old_ks_plist]]} {[DQ [VarSub KS_VERSION_KEY]]})]]})])
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not read old Keystone version"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 10]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_app_path', {[DQ [VarSub new_fs][LIT_CHARS /][VarSub APP_NAME]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_app_plist', {[DQ [VarSub new_app_path][LIT_CHARS /][VarSub APP_PLIST]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS new_app_version]}] bindings=[])
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('new_app_version', {[DQ [ComSub (Com {[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub new_app_plist]]} {[DQ [VarSub APP_VERSION_KEY]]})]]})])
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not read new app version"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 11]})
        )
      )
      (If
        (Pipeline!
          (DBracket {B2 BINARY_STRING_TILDE_EQUAL {[DQ [VarSub new_app_version]]} {[VarSub BUILD_RE]}})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "new app version not of expected format"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 11]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_app_version_build', {[DQ [VarSub BASH_REMATCH bracket_op=(Index {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 1]}})]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_ks_plist', {[DQ [VarSub new_app_plist]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS new_ks_version]}] bindings=[])
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('new_ks_version', {[DQ [ComSub (Com {[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub new_ks_plist]]} {[DQ [VarSub KS_VERSION_KEY]]})]]})])
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not read new Keystone version"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 11]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS new_ks_product]}] bindings=[])
      (If
        (Pipeline!
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('new_ks_product', {[DQ [ComSub (Com {[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub new_app_plist]]} {[DQ [VarSub KS_PRODUCT_KEY]]})]]})])
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not read new Keystone product ID"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 11]})
        )
      )
      (If
        (AndOr OP_OR_IF
          (DBracket {B2 BINARY_INT_LT {[VarSub old_app_version_build]} {[VarSub MIN_BUILD]}})
          (DBracket {B2 BINARY_INT_LT {[VarSub new_app_version_build]} {[VarSub MIN_BUILD]}})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "old and new versions must be build "][VarSub MIN_BUILD][LIT_CHARS " or newer"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 12]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS new_ks_channel]}] bindings=[])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('new_ks_channel', {[DQ [ComSub (AndOr OP_OR_IF (Com redirects=[(FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT "2>"> 2)]{[LIT_CHARS defaults]} {[LIT_CHARS read]} {[DQ [VarSub new_app_plist]]} {[DQ [VarSub KS_CHANNEL_KEY]]}) (Com {[LIT_CHARS true]}) )]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS name_extra]}] bindings=[])
      (If
        (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub new_ks_channel]]} {[DQ [LIT_CHARS beta]]}})
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('name_extra', {[DQ [LIT_CHARS " Beta"]]})])
        (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub new_ks_channel]]} {[DQ [LIT_CHARS dev]]}})
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('name_extra', {[DQ [LIT_CHARS " Dev"]]})])
        (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub new_ks_channel]]} {[DQ [LIT_CHARS canary]]}})
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('name_extra', {[SQ ]})])
        (DBracket {B1 UNARY_STRING_n {[DQ [VarSub new_ks_channel]]}})
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('name_extra', {[DQ [LIT_CHARS " "][VarSub new_ks_channel]]})])
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_versioned_dir', {[DQ [VarSub old_app_path][LIT_CHARS /][VarSub VERSIONS_DIR][LIT_CHARS /][VarSub old_app_version]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_versioned_dir', {[DQ [VarSub new_app_path][LIT_CHARS /][VarSub VERSIONS_DIR][LIT_CHARS /][VarSub new_app_version]]})])
      (If
        (Pipeline!
          (Com {[LIT_CHARS cp]} {[LIT_CHARS -p]} {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /keystone_install.sh]]} {[DQ [VarSub patch_fs][LIT_CHARS /.keystone_install]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not copy .keystone_install"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_dotpatch_dir', {[DQ [VarSub patch_fs][LIT_CHARS /.patch]]})])
      (If
        (Pipeline!
          (Com {[LIT_CHARS mkdir]} {[DQ [VarSub patch_dotpatch_dir]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not mkdir patch_dotpatch_dir"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
        )
      )
      (If
        (Pipeline!
          (Com {[LIT_CHARS cp]} {[LIT_CHARS -p]} {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /dirpatcher.sh]]} {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /goobspatch]]} {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /liblzma_decompress.dylib]]} {[DQ [VarSub SCRIPT_DIR][LIT_CHARS /xzdec]]} {[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not copy patching tools"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
        )
      )
      (If
        (AndOr OP_OR_IF
          (Pipeline!
            (Com {[LIT_CHARS echo]} {[DQ [VarSub new_ks_product]]}
              <
              (FilenameRedirectNode filename={[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /ks_product]]} <REDIR_GREAT ">"> 1),
              >
            )
          )
          (AndOr OP_OR_IF
            (Pipeline!
              (Com {[LIT_CHARS echo]} {[DQ [VarSub old_app_version]]}
                <
                (FilenameRedirectNode filename={[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /old_app_version]]} <REDIR_GREAT ">"> 1),
                >
              )
            )
            (AndOr OP_OR_IF
              (Pipeline!
                (Com {[LIT_CHARS echo]} {[DQ [VarSub new_app_version]]}
                  <
                  (FilenameRedirectNode filename={[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /new_app_version]]} <REDIR_GREAT ">"> 1),
                  >
                )
              )
              (AndOr OP_OR_IF
                (Pipeline!
                  (Com {[LIT_CHARS echo]} {[DQ [VarSub old_ks_version]]}
                    <
                    (FilenameRedirectNode filename={[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /old_ks_version]]} <REDIR_GREAT ">"> 1),
                    >
                  )
                )
                (Pipeline!
                  (Com {[LIT_CHARS echo]} {[DQ [VarSub new_ks_version]]}
                    <
                    (FilenameRedirectNode filename={[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /new_ks_version]]} <REDIR_GREAT ">"> 1),
                    >
                  )
                )
              )
            )
          )
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not write patch product or version information"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_ks_channel_file', {[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /ks_channel]]})])
      (If
        (DBracket {B1 UNARY_STRING_n {[DQ [VarSub new_ks_channel]]}})
        (If
          (Pipeline!
            (Com {[LIT_CHARS echo]} {[DQ [VarSub new_ks_channel]]}
              <
              (FilenameRedirectNode filename={[DQ [VarSub patch_ks_channel_file]]} <REDIR_GREAT ">"> 1),
              >
            )
          )
          (List
            (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not write Keystone channel information"]]})
            (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
          )
        )
        (ElseTrue)
        (If
          (Pipeline!
            (Com {[LIT_CHARS touch]} {[DQ [VarSub patch_ks_channel_file]]})
          )
          (List
            (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not write empty Keystone channel information"]]})
            (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
          )
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_app_version_extra', {[DQ [VarSub new_app_version][VarSub name_extra]]})])
      (AndOr OP_OR_IF
        (Com {[LIT_CHARS cat]}
          <
          (FilenameRedirectNode filename={[DQ [VarSub patch_fs][LIT_CHARS /README.txt]]} <REDIR_GREAT ">"> 1),
          (HereDocRedirectNode here_end='__EOF__' do_expansion=True body_word={[DQ [LIT_CHARS "This disk image contains a differential updater that can update\n"][VarSub product_name][LIT_CHARS " from version "][VarSub old_app_version][LIT_CHARS " to "][VarSub new_app_version_extra][LIT_CHARS ".\n"][LIT_CHARS "\n"][LIT_CHARS "This image is part of the auto-update system and is not independently\n"][LIT_CHARS "useful.\n"][LIT_CHARS "\n"][LIT_CHARS "To install "][VarSub product_name][LIT_CHARS ", please visit\n"][LIT_CHARS "<"][VarSub product_url][LIT_CHARS ">.\n"]]} <REDIR_DLESS "<<"> 0),
          >
        )
        (Subshell
          (AndOr OP_AND_IF
            (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not write README.txt"]]})
            (Com {[LIT_CHARS exit]} {[LIT_CHARS 13]})
          )
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_versioned_dir', {[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /version_][VarSub old_app_version][LIT_CHARS _][VarSub new_app_version][LIT_CHARS .dirpatch]]})])
      (If
        (Pipeline!
          (Com {[DQ [VarSub DIRDIFFER]]} {[DQ [VarSub old_versioned_dir]]} {[DQ [VarSub new_versioned_dir]]} {[DQ [VarSub patch_versioned_dir]]})
        )
        (List
          (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('status', {[VarSub ?]})])
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not create a dirpatch for the versioned directory"]]})
          (Com {[LIT_CHARS exit]} {[ArithSub {A2 AS_OP_PLUS {A Atom NODE_ARITH_WORD {[VarSub status]}} {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 20]}}}]})
        )
      )
      (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[] bindings=[('DIRDIFFER_EXCLUDE', {[DQ [LIT_CHARS /][VarSub APP_NAME_RE][LIT_CHARS /Contents/Versions/]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[] bindings=[('DIRDIFFER_NO_DIFF', {[DQ [LIT_CHARS /][VarSub APP_NAME_RE][LIT_CHARS /Contents/][LIT_CHARS "(CodeResources|Info"][\ LIT_ESCAPED_CHAR "\\\\"][LIT_CHARS ".plist|MacOS/"][VarSub product_name][LIT_CHARS "|_CodeSignature/.*)"][LIT_OTHER "$"]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_app_dir', {[DQ [VarSub patch_dotpatch_dir][LIT_CHARS /application.dirpatch]]})])
      (If
        (Pipeline!
          (Com {[DQ [VarSub DIRDIFFER]]} {[DQ [VarSub old_app_path]]} {[DQ [VarSub new_app_path]]} {[DQ [VarSub patch_app_dir]]})
        )
        (List
          (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('status', {[VarSub ?]})])
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not create a dirpatch for the application directory"]]})
          (Com {[LIT_CHARS exit]} {[ArithSub {A2 AS_OP_PLUS {A Atom NODE_ARITH_WORD {[VarSub status]}} {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 40]}}}]})
        )
      )
      (Com {[LIT_CHARS unset]} {[LIT_CHARS DIRDIFFER_EXCLUDE]} {[LIT_CHARS DIRDIFFER_NO_DIFF]})
      (Com {[LIT_CHARS echo]} {[DQ [VarSub product_name][LIT_CHARS " "][VarSub old_app_version][LIT_CHARS -][VarSub new_app_version_extra][LIT_CHARS " Update"]]})
    )
  )
  (FunctionDef package_patch_dmg []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_fs', {[DQ [VarSub 1]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_dmg', {[DQ [VarSub 2]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('volume_name', {[DQ [VarSub 3]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('temp_dir', {[DQ [VarSub 4]]})])
      (If
        (Pipeline!
          (Com {[DQ [VarSub PKG_DMG]]} {[LIT_CHARS --verbosity]} {[LIT_CHARS 0]} {[LIT_CHARS --source]} {[DQ [VarSub patch_fs]]} {[LIT_CHARS --target]} {[DQ [VarSub patch_dmg]]} {[LIT_CHARS --tempdir]} {[DQ [VarSub temp_dir]]} {[LIT_CHARS --format]} {[LIT_CHARS UDZO]} {[LIT_CHARS --volname]} {[DQ [VarSub volume_name]]} {[LIT_CHARS --config]} {[DQ [LIT_CHARS "openfolder_bless=0"]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "disk image creation failed"]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 9]})
        )
      )
    )
  )
  (FunctionDef make_patch_dmg []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('product_name', {[DQ [VarSub 1]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_dmg', {[DQ [VarSub 2]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_dmg', {[DQ [VarSub 3]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_dmg', {[DQ [VarSub 4]]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS temp_dir]}] bindings=[])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('temp_dir', {[DQ [ComSub (Com {[LIT_CHARS mktemp]} {[LIT_CHARS -d]} {[LIT_CHARS -t]} {[DQ [VarSub ME]]})]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('g_cleanup+', {[Array {[DQ [VarSub temp_dir]]}]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('old_mount_point', {[DQ [VarSub temp_dir][LIT_CHARS /old]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('g_cleanup_mount_points+', {[Array {[DQ [VarSub old_mount_point]]}]})])
      (If
        (Pipeline!
          (Com {[LIT_CHARS mount_dmg]} {[DQ [VarSub old_dmg]]} {[DQ [VarSub old_mount_point]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not mount old_dmg "][VarSub old_dmg]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 6]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('new_mount_point', {[DQ [VarSub temp_dir][LIT_CHARS /new]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('g_cleanup_mount_points+', {[Array {[DQ [VarSub new_mount_point]]}]})])
      (If
        (Pipeline!
          (Com {[LIT_CHARS mount_dmg]} {[DQ [VarSub new_dmg]]} {[DQ [VarSub new_mount_point]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not mount new_dmg "][VarSub new_dmg]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 7]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('patch_fs', {[DQ [VarSub temp_dir][LIT_CHARS /patch]]})])
      (If
        (Pipeline!
          (Com {[LIT_CHARS mkdir]} {[DQ [VarSub patch_fs]]})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "could not mkdir patch_fs "][VarSub patch_fs]]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 8]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS volume_name]}] bindings=[])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('volume_name', {[DQ [ComSub (Com {[LIT_CHARS make_patch_fs]} {[DQ [VarSub product_name]]} {[DQ [VarSub old_mount_point]]} {[DQ [VarSub new_mount_point]]} {[DQ [VarSub patch_fs]]})]]})])
      (Com {[LIT_CHARS hdiutil]} {[LIT_CHARS detach]} {[DQ [VarSub new_mount_point]]}
        <
        (FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT ">"> 1),
        >
      )
      (Com {[LIT_CHARS unset]} {[LIT_CHARS g_cleanup_mount_points] [LIT_OTHER "["] [VarSub g_cleanup_mount_points bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]] [LIT_OTHER "]"]})
      (Com {[LIT_CHARS hdiutil]} {[LIT_CHARS detach]} {[DQ [VarSub old_mount_point]]}
        <
        (FilenameRedirectNode filename={[LIT_CHARS /dev/null]} <REDIR_GREAT ">"> 1),
        >
      )
      (Com {[LIT_CHARS unset]} {[LIT_CHARS g_cleanup_mount_points] [LIT_OTHER "["] [VarSub g_cleanup_mount_points bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]] [LIT_OTHER "]"]})
      (Com {[LIT_CHARS package_patch_dmg]} {[DQ [VarSub patch_fs]]} {[DQ [VarSub patch_dmg]]} {[DQ [VarSub volume_name]]} {[DQ [VarSub temp_dir]]})
      (Com {[LIT_CHARS rm]} {[LIT_CHARS -rf]} {[DQ [VarSub temp_dir]]})
      (Com {[LIT_CHARS unset]} {[LIT_CHARS g_cleanup] [LIT_OTHER "["] [VarSub g_cleanup bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]] [LIT_OTHER "]"]})
    )
  )
  (FunctionDef shell_safe_path []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('path', {[DQ [VarSub 1]]})])
      (If
        (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub path transform_ops=[Slice {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 0]}} {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 1]}}]]]} {[DQ [LIT_CHARS -]]}})
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS ./][VarSub path]]})
        (ElseTrue)
        (Com {[LIT_CHARS echo]} {[DQ [VarSub path]]})
      )
    )
  )
  (FunctionDef usage []
    (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "usage: "][VarSub ME][LIT_CHARS " product_name old_dmg new_dmg patch_dmg"]]}
      <
      (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
      >
    )
  )
  (FunctionDef main []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS product_name]}, {[LIT_CHARS old_dmg]}, {[LIT_CHARS new_dmg]}, {[LIT_CHARS patch_dmg]}] bindings=[])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('product_name', {[DQ [VarSub 1]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('old_dmg', {[DQ [ComSub (Com {[LIT_CHARS shell_safe_path]} {[DQ [VarSub 2]]})]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('new_dmg', {[DQ [ComSub (Com {[LIT_CHARS shell_safe_path]} {[DQ [VarSub 3]]})]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('patch_dmg', {[DQ [ComSub (Com {[LIT_CHARS shell_safe_path]} {[DQ [VarSub 4]]})]]})])
      (Com {[LIT_CHARS trap]} {[LIT_CHARS cleanup]} {[LIT_CHARS EXIT]} {[LIT_CHARS HUP]} {[LIT_CHARS INT]} {[LIT_CHARS QUIT]} {[LIT_CHARS TERM]})
      (If
        (AndOr OP_OR_IF
          (Pipeline!
            (DBracket {B1 UNARY_FILE_f {[DQ [VarSub old_dmg]]}})
          )
          (Pipeline!
            (DBracket {B1 UNARY_FILE_f {[DQ [VarSub new_dmg]]}})
          )
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "old_dmg and new_dmg must exist and be files"]]})
          (Com {[LIT_CHARS usage]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 3]})
        )
      )
      (If
        (DBracket {B1 UNARY_FILE_e {[DQ [VarSub patch_dmg]]}})
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "patch_dmg must not exist"]]})
          (Com {[LIT_CHARS usage]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 4]})
        )
      )
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[{[LIT_CHARS patch_dmg_parent]}] bindings=[])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('patch_dmg_parent', {[DQ [ComSub (Com {[LIT_CHARS dirname]} {[DQ [VarSub patch_dmg]]})]]})])
      (If
        (Pipeline!
          (DBracket {B1 UNARY_FILE_d {[DQ [VarSub patch_dmg_parent]]}})
        )
        (List
          (Com {[LIT_CHARS err]} {[DQ [LIT_CHARS "patch_dmg parent directory must exist and be a directory"]]})
          (Com {[LIT_CHARS usage]})
          (Com {[LIT_CHARS exit]} {[LIT_CHARS 5]})
        )
      )
      (Com {[LIT_CHARS make_patch_dmg]} {[DQ [VarSub product_name]]} {[DQ [VarSub old_dmg]]} {[DQ [VarSub new_dmg]]} {[DQ [VarSub patch_dmg]]})
      (Com {[LIT_CHARS trap]} {[LIT_CHARS -]} {[LIT_CHARS EXIT]})
    )
  )
  (If
    (DBracket {B2 BINARY_INT_NE {[VarSub #]} {[LIT_CHARS 4]}})
    (List
      (Com {[LIT_CHARS usage]})
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 2]})
    )
  )
  (Com {[LIT_CHARS main]} {[DQ [VarSub @]]})
  (Com {[LIT_CHARS exit]} {[VarSub ?]})
)