Mercurial > hg
view tests/test-exchange-obsmarkers-case-B7.t @ 43658:0796e266d26b
dirs: resolve fuzzer OOM situation by disallowing deep directory hierarchies
It seems like 2048 directories ought to be enough for any reasonable
use of Mercurial?
A previous version of this patch scanned for slashes before any allocations
occurred. That approach is slower than this in the happy path, but much faster
than this in the case that too many slashes are encountered. We may want to
revisit it in the future using memchr() so it'll be well-optimized by the libc
we're using.
.. bc:
Mercurial will now defend against OOMs by refusing to operate on
paths with 2048 or more components. This means that _extremely_
deep path hierarchies will be rejected, but we anticipate nobody
is using hierarchies this deep.
Differential Revision: https://phab.mercurial-scm.org/D7411
author | Augie Fackler <augie@google.com> |
---|---|
date | Tue, 12 Nov 2019 10:17:59 -0500 |
parents | 2bf73e351eb1 |
children |
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============================================ Testing obsolescence markers push: Cases B.7 ============================================ Mercurial pushes obsolescences markers relevant to the "pushed-set", the set of all changesets that requested to be "in sync" after the push (even if they are already on both side). This test belongs to a series of tests checking such set is properly computed and applied. This does not tests "obsmarkers" discovery capabilities. Category B: pruning case TestCase 7: Prune on non-targeted common changeset B.7 Prune above non-targeted common changeset ============================================= .. (very similar to B1, but the prune changeset is unknown on remote) .. .. {{{ .. ⊗ B .. | .. ◕ A .. | .. ● O .. }}} .. .. Marker exist from: .. .. * B (prune) .. .. Command runs: .. .. * hg push -r O .. .. Expected exclude: .. .. * B (prune) Setup ----- $ . $TESTDIR/testlib/exchange-obsmarker-util.sh Initial $ setuprepos B.7 creating test repo for test case B.7 - pulldest - main - pushdest cd into `main` and proceed with env setup $ cd main $ mkcommit A $ hg push -q ../pushdest $ hg push -q ../pulldest $ mkcommit B $ hg prune -qd '0 0' . $ hg log -G --hidden x f6fbb35d8ac9 (draft): B | @ f5bc6836db60 (draft): A | o a9bdc8b26820 (public): O $ inspect_obsmarkers obsstore content ================ f6fbb35d8ac958bbe70035e4c789c18471cdc0af 0 {f5bc6836db60e308a17ba08bf050154ba9c4fad7} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'} $ cd .. $ cd .. Actual Test ------------------------------------- $ dotest B.7 O ## Running testcase B.7 # testing echange of "O" (a9bdc8b26820) ## initial state # obstore: main f6fbb35d8ac958bbe70035e4c789c18471cdc0af 0 {f5bc6836db60e308a17ba08bf050154ba9c4fad7} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'} # obstore: pushdest # obstore: pulldest ## pushing "O" from main to pushdest pushing to pushdest searching for changes no changes found ## post push state # obstore: main f6fbb35d8ac958bbe70035e4c789c18471cdc0af 0 {f5bc6836db60e308a17ba08bf050154ba9c4fad7} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'} # obstore: pushdest # obstore: pulldest ## pulling "a9bdc8b26820" from main into pulldest pulling from main no changes found ## post pull state # obstore: main f6fbb35d8ac958bbe70035e4c789c18471cdc0af 0 {f5bc6836db60e308a17ba08bf050154ba9c4fad7} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'} # obstore: pushdest # obstore: pulldest