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- # 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.sh in
- # Chromium.
- CLANG_REVISION = "233105"
- 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:]))
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