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md5 allow copy if file is missing #532

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merged 1 commit into from
Jul 3, 2012
Merged

md5 allow copy if file is missing #532

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33 changes: 15 additions & 18 deletions library/copy
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Original file line number Diff line number Diff line change
Expand Up @@ -66,29 +66,26 @@ if src:
if dest:
dest = os.path.expanduser(dest)

md5sum_src = None
# raise an error if there is no src file
if not os.path.exists(src):
exit_kv(rc=1, failed=1, msg="Source %s failed to transfer" % (src))

# raise an error if there is no dest file
if not os.path.exists(dest):
exit_kv(rc=1, failed=1, msg="Destination %s does not exist" % (dest))

# raise an error if copy has no permission on dest
if not os.access(dest, os.W_OK):
exit_kv(rc=1, failed=1, msg="Destination %s not writable" % (dest))
elif not os.access(dest, os.R_OK):
exit_kv(rc=1, failed=1, msg="Destination %s not readable" % (dest))

md5sum_src = None
if not os.access(src, os.R_OK):
exit_kv(rc=1, failed=1, msg="Source %s not readable" % (src))
md5sum_src = md5_sum(src)

md5sum_dest = None
try:
# check if there is no dest file
if os.path.exists(dest):
# raise an error if copy has no permission on dest
if not os.access(dest, os.W_OK):
exit_kv(rc=1, failed=1, msg="Destination %s not writable" % (dest))
if not os.access(dest, os.R_OK):
exit_kv(rc=1, failed=1, msg="Destination %s not readable" % (dest))
md5sum_dest = md5_sum(dest)
except IndexError:
# File doesn't exist yet, so clear to continue
pass
else:
if not os.access(os.path.dirname(dest), os.W_OK):
exit_kv(rc=1, failed=1, msg="Destination %s not writable" % (dest))

if md5sum_src != md5sum_dest:
os.system("cp %s %s" % (src, dest))
Expand All @@ -97,6 +94,6 @@ else:
changed = False

# mission accomplished
#print "md5sum=%s changed=%s" % (md5sum_dest, changed)
exit_kv(dest=dest, src=src, changed="md5sum=%s changed=%s" % (md5sum_dest, changed))
#print "md5sum=%s changed=%s" % (md5sum_src, changed)
exit_kv(dest=dest, src=src, changed="md5sum=%s changed=%s" % (md5sum_src, changed))