Mercurial > hg
view tests/test-parseindex.t @ 28205:53f42c8d5f71
verify: show progress while verifying dirlogs
In repos with treemanifests, the non-root-directory dirlogs often have
many more total revisions than the root manifest log has. This change
adds progress out to that part of 'hg verify'. Since the verification
is recursive along the directory tree, we don't know how many total
revisions there are at the beginning of the command, so instead we
report progress in units of directories, much like we report progress
for verification of files today.
I'm not very happy with passing both 'storefiles' and 'progress' into
the recursive calls. I tried passing in just a 'visitdir(dir)'
callback, but the results did not seem better overall. I'm happy to
update if anyone has better ideas.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Thu, 11 Feb 2016 15:38:56 -0800 |
parents | df41c7be16d6 |
children | 21fa3d3688f3 |
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revlog.parseindex must be able to parse the index file even if an index entry is split between two 64k blocks. The ideal test would be to create an index file with inline data where 64k < size < 64k + 64 (64k is the size of the read buffer, 64 is the size of an index entry) and with an index entry starting right before the 64k block boundary, and try to read it. We approximate that by reducing the read buffer to 1 byte. $ hg init a $ cd a $ echo abc > foo $ hg add foo $ hg commit -m 'add foo' $ echo >> foo $ hg commit -m 'change foo' $ hg log -r 0: changeset: 0:7c31755bf9b5 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add foo changeset: 1:26333235a41c tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: change foo $ cat >> test.py << EOF > from mercurial import changelog, scmutil > from mercurial.node import * > > class singlebyteread(object): > def __init__(self, real): > self.real = real > > def read(self, size=-1): > if size == 65536: > size = 1 > return self.real.read(size) > > def __getattr__(self, key): > return getattr(self.real, key) > > def opener(*args): > o = scmutil.opener(*args) > def wrapper(*a): > f = o(*a) > return singlebyteread(f) > return wrapper > > cl = changelog.changelog(opener('.hg/store')) > print len(cl), 'revisions:' > for r in cl: > print short(cl.node(r)) > EOF $ python test.py 2 revisions: 7c31755bf9b5 26333235a41c $ cd .. #if no-pure Test SEGV caused by bad revision passed to reachableroots() (issue4775): $ cd a $ python <<EOF > from mercurial import changelog, scmutil > cl = changelog.changelog(scmutil.vfs('.hg/store')) > print 'good heads:' > for head in [0, len(cl) - 1, -1]: > print'%s: %r' % (head, cl.reachableroots(0, [head], [0])) > print 'bad heads:' > for head in [len(cl), 10000, -2, -10000, None]: > print '%s:' % head, > try: > cl.reachableroots(0, [head], [0]) > print 'uncaught buffer overflow?' > except (IndexError, TypeError) as inst: > print inst > print 'good roots:' > for root in [0, len(cl) - 1, -1]: > print '%s: %r' % (root, cl.reachableroots(root, [len(cl) - 1], [root])) > print 'out-of-range roots are ignored:' > for root in [len(cl), 10000, -2, -10000]: > print '%s: %r' % (root, cl.reachableroots(root, [len(cl) - 1], [root])) > print 'bad roots:' > for root in [None]: > print '%s:' % root, > try: > cl.reachableroots(root, [len(cl) - 1], [root]) > print 'uncaught error?' > except TypeError as inst: > print inst > EOF good heads: 0: [0] 1: [0] -1: [] bad heads: 2: head out of range 10000: head out of range -2: head out of range -10000: head out of range None: an integer is required good roots: 0: [0] 1: [1] -1: [-1] out-of-range roots are ignored: 2: [] 10000: [] -2: [] -10000: [] bad roots: None: an integer is required $ cd .. Test corrupted p1/p2 fields that could cause SEGV at parsers.c: $ mkdir invalidparent $ cd invalidparent $ hg clone --pull -q --config phases.publish=False ../a limit $ hg clone --pull -q --config phases.publish=False ../a segv $ rm -R limit/.hg/cache segv/.hg/cache $ python <<EOF > data = open("limit/.hg/store/00changelog.i", "rb").read() > for n, p in [('limit', '\0\0\0\x02'), ('segv', '\0\x01\0\0')]: > # corrupt p1 at rev0 and p2 at rev1 > d = data[:24] + p + data[28:127 + 28] + p + data[127 + 32:] > open(n + "/.hg/store/00changelog.i", "wb").write(d) > EOF $ hg debugindex -f1 limit/.hg/store/00changelog.i rev flag offset length size base link p1 p2 nodeid 0 0000 0 63 62 0 0 2 -1 7c31755bf9b5 1 0000 63 66 65 1 1 0 2 26333235a41c $ hg debugindex -f1 segv/.hg/store/00changelog.i rev flag offset length size base link p1 p2 nodeid 0 0000 0 63 62 0 0 65536 -1 7c31755bf9b5 1 0000 63 66 65 1 1 0 65536 26333235a41c $ cat <<EOF > test.py > import sys > from mercurial import changelog, scmutil > cl = changelog.changelog(scmutil.vfs(sys.argv[1])) > n0, n1 = cl.node(0), cl.node(1) > ops = [ > ('reachableroots', > lambda: cl.index.reachableroots2(0, [1], [0], False)), > ('compute_phases_map_sets', lambda: cl.computephases([[0], []])), > ('index_headrevs', lambda: cl.headrevs()), > ('find_gca_candidates', lambda: cl.commonancestorsheads(n0, n1)), > ('find_deepest', lambda: cl.ancestor(n0, n1)), > ] > for l, f in ops: > print l + ':', > try: > f() > print 'uncaught buffer overflow?' > except ValueError, inst: > print inst > EOF $ python test.py limit/.hg/store reachableroots: parent out of range compute_phases_map_sets: parent out of range index_headrevs: parent out of range find_gca_candidates: parent out of range find_deepest: parent out of range $ python test.py segv/.hg/store reachableroots: parent out of range compute_phases_map_sets: parent out of range index_headrevs: parent out of range find_gca_candidates: parent out of range find_deepest: parent out of range $ cd .. #endif