| # Copyright (c) 2015, Google Inc. |
| # |
| # Permission to use, copy, modify, and/or distribute this software for any |
| # purpose with or without fee is hereby granted, provided that the above |
| # copyright notice and this permission notice appear in all copies. |
| # |
| # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| # SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| # OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| # CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
| import os.path |
| import shutil |
| import sys |
| import tarfile |
| import tempfile |
| import urllib |
| |
| # CLANG_REVISION and CLANG_SUB_REVISION determine the build of clang |
| # to use. These should be synced with tools/clang/scripts/update.py in |
| # Chromium. |
| CLANG_REVISION = "300839" |
| CLANG_SUB_REVISION = "1" |
| |
| PACKAGE_VERSION = "%s-%s" % (CLANG_REVISION, CLANG_SUB_REVISION) |
| LLVM_BUILD_DIR = os.path.join(os.path.dirname(__file__), "llvm-build") |
| STAMP_FILE = os.path.join(LLVM_BUILD_DIR, "cr_build_revision") |
| |
| CDS_URL = "https://commondatastorage.googleapis.com/chromium-browser-clang" |
| |
| def DownloadFile(url, path): |
| """DownloadFile fetches |url| to |path|.""" |
| last_progress = [0] |
| def report(a, b, c): |
| progress = int(a * b * 100.0 / c) |
| if progress != last_progress[0]: |
| print >> sys.stderr, "Downloading... %d%%" % progress |
| last_progress[0] = progress |
| urllib.urlretrieve(url, path, reporthook=report) |
| |
| def main(args): |
| # For now, only download clang on Linux. |
| if not sys.platform.startswith("linux"): |
| return 0 |
| |
| if os.path.exists(STAMP_FILE): |
| with open(STAMP_FILE) as f: |
| if f.read().strip() == PACKAGE_VERSION: |
| print >> sys.stderr, "Clang already at %s" % (PACKAGE_VERSION,) |
| return 0 |
| |
| if os.path.exists(LLVM_BUILD_DIR): |
| shutil.rmtree(LLVM_BUILD_DIR) |
| |
| print >> sys.stderr, "Downloading Clang %s" % (PACKAGE_VERSION,) |
| cds_full_url = "%s/Linux_x64/clang-%s.tgz" % (CDS_URL, PACKAGE_VERSION) |
| with tempfile.NamedTemporaryFile() as temp: |
| DownloadFile(cds_full_url, temp.name) |
| with tarfile.open(temp.name, "r:gz") as tar_file: |
| tar_file.extractall(LLVM_BUILD_DIR) |
| |
| with open(STAMP_FILE, "wb") as stamp_file: |
| stamp_file.write(PACKAGE_VERSION) |
| |
| return 0 |
| |
| if __name__ == "__main__": |
| sys.exit(main(sys.argv[1:])) |