3 # Copyright 2011-2014 The Rust Project Developers. See the COPYRIGHT
4 # file at the top-level directory of this distribution and at
5 # http://rust-lang.org/COPYRIGHT.
7 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
8 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
9 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
10 # option. This file may not be copied, modified, or distributed
11 # except according to those terms.
17 from snapshot import *
20 def unpack_snapshot(triple, dl_path):
21 print("opening snapshot " + dl_path)
22 tar = tarfile.open(dl_path)
23 kernel = get_kernel(triple)
25 stagep = os.path.join(triple, "stage0")
27 # Remove files from prior unpackings, since snapshot rustc may not
28 # be able to disambiguate between multiple candidate libraries.
29 # (Leave dirs in place since extracting step still needs them.)
30 for root, _, files in os.walk(stagep):
32 print("removing " + os.path.join(root, f))
33 os.unlink(os.path.join(root, f))
35 for p in tar.getnames():
36 name = p.replace("rust-stage0/", "", 1)
38 fp = os.path.join(stagep, name)
39 print("extracting " + p)
40 tar.extract(p, download_unpack_base)
41 tp = os.path.join(download_unpack_base, p)
42 if os.path.isdir(tp) and os.path.exists(fp):
46 shutil.rmtree(download_unpack_base)
51 # this gets called with one or two arguments:
52 # The first is the O/S triple.
53 # The second is an optional path to the snapshot to use.
60 snap = determine_curr_snapshot(triple)
61 dl = os.path.join(download_dir_base, snap)
62 url = download_url_base + "/" + snap
63 print("determined most recent snapshot: " + snap)
65 if (not os.path.exists(dl)):
66 get_url_to_file(url, dl)
68 if (snap_filename_hash_part(snap) == hash_file(dl)):
69 print("got download with ok hash")
71 raise Exception("bad hash on download")
73 dl_path = os.path.join(download_dir_base, snap)
75 unpack_snapshot(triple, dl_path)
77 if __name__ == '__main__':