rust/src/etc/snapshot.py
2011-05-03 16:53:36 -07:00

124 lines
3.0 KiB
Python

import re, os, sys, hashlib, tarfile, shutil, subprocess, tempfile
def scrub(b):
if sys.version_info >= (3,) and type(b) == bytes:
return b.decode('ascii')
else:
return b
src_dir = scrub(os.getenv("CFG_SRC_DIR"))
if not src_dir:
raise Exception("missing env var CFG_SRC_DIR")
snapshotfile = os.path.join(src_dir, "src", "snapshots.txt")
download_url_base = "http://dl.rust-lang.org/stage0-snapshots"
download_dir_base = "dl"
download_unpack_base = os.path.join(download_dir_base, "unpack")
snapshot_files = {
"linux": ["rustc", "glue.o", "libstd.so" ],
"macos": ["rustc", "glue.o", "libstd.dylib" ],
"winnt": ["rustc.exe", "glue.o", "std.dll" ]
}
def parse_line(n, line):
global snapshotfile
if re.match(r"\s*$", line): return None
match = re.match(r"\s+([\w_-]+) ([a-fA-F\d]{40})\s*$", line)
if match:
return { "type": "file",
"platform": match.group(1),
"hash": match.group(2).lower() }
match = re.match(r"([ST]) (\d{4}-\d{2}-\d{2}) ([a-fA-F\d]+)\s*$", line);
if (not match):
raise Exception("%s:%d:E syntax error" % (snapshotfile, n))
ttype = "snapshot"
if (match.group(1) == "T"):
ttype = "transition"
return {"type": ttype,
"date": match.group(2),
"rev": match.group(3)}
def partial_snapshot_name(date, rev, platform):
return ("rust-stage0-%s-%s-%s.tar.bz2"
% (date, rev, platform))
def full_snapshot_name(date, rev, platform, hsh):
return ("rust-stage0-%s-%s-%s-%s.tar.bz2"
% (date, rev, platform, hsh))
def get_kernel():
if os.name == "nt":
return "winnt"
kernel = os.uname()[0].lower()
if kernel == "darwin":
kernel = "macos"
return kernel
def get_cpu():
# return os.uname()[-1].lower()
return "i386"
def get_platform():
return "%s-%s" % (get_kernel(), get_cpu())
def cmd_out(cmdline):
p = subprocess.Popen(cmdline,
stdout=subprocess.PIPE)
return scrub(p.communicate()[0].strip())
def local_rev_info(field):
return cmd_out(["git", "--git-dir=" + os.path.join(src_dir, ".git"),
"log", "-n", "1",
"--format=%%%s" % field, "HEAD"])
def local_rev_full_sha():
return local_rev_info("H").split()[0]
def local_rev_short_sha():
return local_rev_info("h").split()[0]
def local_rev_committer_date():
return local_rev_info("ci")
def get_url_to_file(u,f):
subprocess.check_call(["curl", "-o", f, u])
def hash_file(x):
h = hashlib.sha1()
h.update(open(x, "rb").read())
return scrub(h.hexdigest())
def make_snapshot():
kernel = get_kernel()
platform = get_platform()
rev = local_rev_short_sha()
date = local_rev_committer_date().split()[0]
file0 = partial_snapshot_name(date, rev, platform)
tar = tarfile.open(file0, "w:bz2")
for name in snapshot_files[kernel]:
tar.add(os.path.join("stage2", name),
"rust-stage0/" + name)
tar.close()
h = hash_file(file0)
file1 = full_snapshot_name(date, rev, platform, h)
shutil.move(file0, file1)
return file1