third_party/closure_compiler/bump_compiler_version

   1 #!/bin/bash
   2 # Copyright 2014 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5 #
   6 # Download the newest version of Closure Compiler, build it and put into Chrome
   7 # source tree. Also update externs/chrome_extensions.js.
   8
   9 readonly SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
  10 readonly TEMP_DIR=$(mktemp -d)
  11
  12 readonly COMPILER_PATH="${SCRIPT_DIR}/compiler/compiler.jar"
  13 readonly EXTERNS_PATH="${SCRIPT_DIR}/externs/chrome_extensions.js"
  14
  15 cleanup() {
  16   rm -rf "${TEMP_DIR}"
  17 }
  18
  19 get_compiler_version() {
  20   java -jar "${1}" --version | grep ^Version: | cut -d' ' -f2
  21 }
  22
  23 get_externs_sha1() {
  24   sha1sum "${EXTERNS_PATH}" | cut -d' ' -f1
  25 }
  26
  27 trap cleanup SIGINT SIGHUP SIGTERM
  28
  29 previous_compiler_version=$(get_compiler_version ${COMPILER_PATH})
  30 previous_externs_sha1=$(get_externs_sha1)
  31
  32 cd "${TEMP_DIR}"
  33 echo "Cloning Closure Compiler repo"
  34 git clone https://github.com/google/closure-compiler.git
  35
  36 cd closure-compiler
  37 echo "Building Closure Compiler"
  38 ant jar
  39
  40 if [[ "$?" -ne 0 ]]; then
  41   echo "Failed to build jar, copying nothing" >&2
  42   cleanup
  43   exit 1
  44 fi
  45
  46 new_compiler_version=$(get_compiler_version "build/compiler.jar")
  47
  48 if [[ "${new_compiler_version}" != "${previous_compiler_version}" ]]; then
  49   cp build/compiler.jar "${COMPILER_PATH}"
  50
  51   echo "Compiler version changed; re-building runner.jar"
  52   "${SCRIPT_DIR}/runner/build_runner_jar.py"
  53   if [[ "$?" -ne 0 ]]; then
  54     echo "Failed to build runner.jar, roll unsuccessful"
  55     cleanup
  56     exit 1
  57   fi
  58
  59   compiler_jar_range="compiler.jar: ${previous_compiler_version} -> ${new_compiler_version}"
  60 fi
  61
  62 (cat <<EOT && cat contrib/externs/chrome_extensions.js) > "${EXTERNS_PATH}"
  63 //    SSSSSSSSSSSSSSS TTTTTTTTTTTTTTTTTTTTTTT     OOOOOOOOO     PPPPPPPPPPPPPPPPP
  64 //  SS:::::::::::::::ST:::::::::::::::::::::T   OO:::::::::OO   P::::::::::::::::P
  65 // S:::::SSSSSS::::::ST:::::::::::::::::::::T OO:::::::::::::OO P::::::PPPPPP:::::P
  66 // S:::::S     SSSSSSST:::::TT:::::::TT:::::TO:::::::OOO:::::::OPP:::::P     P:::::P
  67 // S:::::S            TTTTTT  T:::::T  TTTTTTO::::::O   O::::::O  P::::P     P:::::P
  68 // S:::::S                    T:::::T        O:::::O     O:::::O  P::::P     P:::::P
  69 //  S::::SSSS                                                     P::::PPPPPP:::::P
  70 //   SS::::::SSSSS       This file is generated. To update it,    P:::::::::::::PP
  71 //     SSS::::::::SS          run bump_compiler_version.          P::::PPPPPPPPP
  72 //        SSSSSS::::S                                             P::::P
  73 //             S:::::S        T:::::T        O:::::O     O:::::O  P::::P
  74 //             S:::::S        T:::::T        O::::::O   O::::::O  P::::P
  75 // SSSSSSS     S:::::S      TT:::::::TT      O:::::::OOO:::::::OPP::::::PP
  76 // S::::::SSSSSS:::::S      T:::::::::T       OO:::::::::::::OO P::::::::P
  77 // S:::::::::::::::SS       T:::::::::T         OO:::::::::OO   P::::::::P
  78 //  SSSSSSSSSSSSSSS         TTTTTTTTTTT           OOOOOOOOO     PPPPPPPPPP
  79 EOT
  80
  81 new_externs_sha1=$(get_externs_sha1)
  82
  83 if [[ "${new_externs_sha1}" != "${previous_externs_sha1}" ]]; then
  84   chrome_extensions_range="chrome_extensions.js: ${previous_externs_sha1} -> ${new_externs_sha1}"
  85 fi
  86
  87 echo
  88 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
  89 echo "@"
  90 echo "@  ROLL RESULTS:"
  91 echo "@"
  92 echo "@  Compiler version:"
  93 echo "@    Previous: ${previous_compiler_version}"
  94 echo "@    New: ${new_compiler_version}"
  95 echo "@"
  96 echo "@  Externs SHA1:"
  97 echo "@    Previous: ${previous_externs_sha1}"
  98 echo "@    New: ${new_externs_sha1}"
  99 echo "@"
 100 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
 101 echo
 102
 103 if [[ -z "${compiler_jar_range}" ]] && [[ -z "${chrome_extensions_range}" ]]; then
 104   echo "Nothing to update"
 105 else
 106   echo "git commit -a -m 'Bumping closure compiler:"
 107   echo
 108   if [[ ! -z "${compiler_jar_range}" ]]; then echo "${compiler_jar_range}"; fi
 109   if [[ ! -z "${chrome_extensions_range}" ]]; then echo "${chrome_extensions_range}"; fi
 110   echo "TBR="
 111   echo "BUG='"
 112   echo
 113   echo "git cl upload"
 114 fi
 115
 116 cleanup