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allow snapshot to be specified in make command line

This commit is contained in:
Niko Matsakis 2012-02-09 17:58:09 -08:00
parent 8e4c5d2d4d
commit be9914625b
2 changed files with 25 additions and 15 deletions
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4
mk/stage0.mk
View File

@ -4,7 +4,9 @@ $(HBIN0_H_$(CFG_HOST_TRIPLE))/rustc$(X): \
$(S)src/snapshots.txt \
$(S)src/etc/get-snapshot.py $(MKFILE_DEPS)
@$(call E, fetch: $@)
$(Q)$(S)src/etc/get-snapshot.py $(CFG_HOST_TRIPLE)
# Note: the variable "SNAPSHOT_FILE" is generally not set, and so
# we generally only pass one argument to this script.
$(Q)$(S)src/etc/get-snapshot.py $(CFG_HOST_TRIPLE) $(SNAPSHOT_FILE)
$(Q)touch $@
# Host libs will be extracted by the above rule

36
src/etc/get-snapshot.py
View File

@ -3,8 +3,7 @@
import os, tarfile, hashlib, re, shutil, sys
from snapshot import *
def unpack_snapshot(triple, snap):
dl_path = os.path.join(download_dir_base, snap)
def unpack_snapshot(triple, dl_path):
print("opening snapshot " + dl_path)
tar = tarfile.open(dl_path)
kernel = get_kernel(triple)
@ -60,18 +59,27 @@ def determine_curr_snapshot(triple):
# Main
# this gets called with one or two arguments:
# The first is the O/S triple.
# The second is an optional path to the snapshot to use.
triple = sys.argv[1]
snap = determine_curr_snapshot(triple)
dl = os.path.join(download_dir_base, snap)
url = download_url_base + "/" + snap
print("determined most recent snapshot: " + snap)
if (not os.path.exists(dl)):
get_url_to_file(url, dl)
if (snap_filename_hash_part(snap) == hash_file(dl)):
print("got download with ok hash")
if len(sys.argv) == 3:
dl_path = sys.argv[2]
else:
raise Exception("bad hash on download")
snap = determine_curr_snapshot(triple)
dl = os.path.join(download_dir_base, snap)
url = download_url_base + "/" + snap
print("determined most recent snapshot: " + snap)
unpack_snapshot(triple, snap)
if (not os.path.exists(dl)):
get_url_to_file(url, dl)
if (snap_filename_hash_part(snap) == hash_file(dl)):
print("got download with ok hash")
else:
raise Exception("bad hash on download")
dl_path = os.path.join(download_dir_base, snap)
unpack_snapshot(triple, dl_path)