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download .tar.xz if python3 is used
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Guanqun Lu committed Nov 10, 2019
1 parent 76ade3e commit 8d56bcc
Showing 1 changed file with 23 additions and 9 deletions.
32 changes: 23 additions & 9 deletions src/bootstrap/bootstrap.py
Original file line number Diff line number Diff line change
Expand Up @@ -102,10 +102,10 @@ def verify(path, sha_path, verbose):
return verified


def unpack(tarball, dst, verbose=False, match=None):
def unpack(tarball, tarball_suffix, dst, verbose=False, match=None):
"""Unpack the given tarball file"""
print("extracting", tarball)
fname = os.path.basename(tarball).replace(".tar.gz", "")
fname = os.path.basename(tarball).replace(tarball_suffix, "")
with contextlib.closing(tarfile.open(tarball)) as tar:
for member in tar.getnames():
if "/" not in member:
Expand Down Expand Up @@ -331,6 +331,18 @@ def __init__(self):
self.use_vendored_sources = ''
self.verbose = False

def support_xz():
try:
with tempfile.NamedTemporaryFile(delete=False) as temp_file:
temp_path = temp_file.name
with tarfile.open(temp_path, "w:xz") as tar:
pass
return True
except tarfile.CompressionError:
return False

self.tarball_suffix = '.tar.xz' if support_xz() else '.tar.gz'

def download_stage0(self):
"""Fetch the build system for Rust, written in Rust
Expand All @@ -349,12 +361,13 @@ def download_stage0(self):
self.program_out_of_date(self.rustc_stamp())):
if os.path.exists(self.bin_root()):
shutil.rmtree(self.bin_root())
filename = "rust-std-{}-{}.tar.gz".format(
rustc_channel, self.build)
filename = "rust-std-{}-{}{}".format(
rustc_channel, self.build, self.tarball_suffix)
pattern = "rust-std-{}".format(self.build)
self._download_stage0_helper(filename, pattern)

filename = "rustc-{}-{}.tar.gz".format(rustc_channel, self.build)
filename = "rustc-{}-{}{}".format(rustc_channel, self.build,
self.tarball_suffix)
self._download_stage0_helper(filename, "rustc")
self.fix_executable("{}/bin/rustc".format(self.bin_root()))
self.fix_executable("{}/bin/rustdoc".format(self.bin_root()))
Expand All @@ -365,14 +378,15 @@ def download_stage0(self):
# libraries/binaries that are included in rust-std with
# the system MinGW ones.
if "pc-windows-gnu" in self.build:
filename = "rust-mingw-{}-{}.tar.gz".format(
rustc_channel, self.build)
filename = "rust-mingw-{}-{}{}".format(
rustc_channel, self.build, self.tarball_suffix)
self._download_stage0_helper(filename, "rust-mingw")

if self.cargo().startswith(self.bin_root()) and \
(not os.path.exists(self.cargo()) or
self.program_out_of_date(self.cargo_stamp())):
filename = "cargo-{}-{}.tar.gz".format(cargo_channel, self.build)
filename = "cargo-{}-{}{}".format(cargo_channel, self.build,
self.tarball_suffix)
self._download_stage0_helper(filename, "cargo")
self.fix_executable("{}/bin/cargo".format(self.bin_root()))
with output(self.cargo_stamp()) as cargo_stamp:
Expand All @@ -388,7 +402,7 @@ def _download_stage0_helper(self, filename, pattern):
tarball = os.path.join(rustc_cache, filename)
if not os.path.exists(tarball):
get("{}/{}".format(url, filename), tarball, verbose=self.verbose)
unpack(tarball, self.bin_root(), match=pattern, verbose=self.verbose)
unpack(tarball, self.tarball_suffix, self.bin_root(), match=pattern, verbose=self.verbose)

@staticmethod
def fix_executable(fname):
Expand Down

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