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tests/test-debugbundle.t
author Gregory Szorc <gregory.szorc@gmail.com>
Sat, 27 Feb 2016 18:22:49 -0800
branchstable
changeset 28289 d493d64757eb
parent 27711 7a678a12a5cf
child 29062 906a1c8a75fd
permissions -rw-r--r--
hg: obtain lock when creating share from pooled repo (issue5104) There are race conditions between clients performing a shared clone to pooled storage: 1) Clients race to create the new shared repo in the pool directory 2) 1 client is seeding the repo in the pool directory and another goes to share it before it is fully cloned We prevent these race conditions by obtaining a lock in the pool directory that is derived from the name of the repo we will be accessing. To test this, a simple generic "lockdelay" extension has been added. The extension inserts an optional, configurable delay before or after lock acquisition. In the test, we delay 2 seconds after lock acquisition in the first process and 1 second before lock acquisition in the 2nd process. This means the first process has 1s to obtain the lock. There is a race condition here. If we encounter it in the wild, we could change the dummy extension to wait on the lock file to appear instead of relying on timing. But that's more complicated. Let's see what happens first.
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fe57046e9448 commands: add debugbundle command
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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Create a test repository:












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  $ hg init repo












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  $ cd repo












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  $ touch a ; hg add a ; hg ci -ma












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  $ touch b ; hg add b ; hg ci -mb












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  $ touch c ; hg add c ; hg ci -mc







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  $ hg bundle --base 0 --rev tip bundle.hg -v --type v1







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  2 changesets found







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  uncompressed size of bundle content:












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       332 (changelog)












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       282 (manifests)







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        93  b












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        93  c







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Terse output:












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  $ hg debugbundle bundle.hg












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  0e067c57feba1a5694ca4844f05588bb1bf82342












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  991a3460af53952d10ec8a295d3d2cc2e5fa9690












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Verbose output:












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  $ hg debugbundle --all bundle.hg







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  format: id, p1, p2, cset, delta base, len(delta)







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  changelog







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  0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a 80












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  991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 80







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  manifest







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  686dbf0aeca417636fa26a9121c681eabbb15a20 8515d4bfda768e04af4c13a69a72e28c7effbea7 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 8515d4bfda768e04af4c13a69a72e28c7effbea7 55












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  ae25a31b30b3490a981e7b96a3238cc69583fda1 686dbf0aeca417636fa26a9121c681eabbb15a20 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 686dbf0aeca417636fa26a9121c681eabbb15a20 55







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  b







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  b80de5d138758541c5f05265ad144ab9fa86d1db 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 0







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  c







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  b80de5d138758541c5f05265ad144ab9fa86d1db 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0000000000000000000000000000000000000000 0







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  $ cd ..














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