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revset: add ^ and ~ operators from parentrevspec extension...
revset: add ^ and ~ operators from parentrevspec extension ^ (Nth parent) and ~ (Nth first ancestor) are infix operators that match certain ancestors of the set: set^0 the set set^1 (also available as set^) the first parent of every changeset in set set^2 the second parent of every changeset in set set~0 the set set~1 the first ancestor (i.e. the first parent) of every changeset in set set~2 the second ancestor (i.e. first parent of first parent) of every changeset in set set~N the Nth ancestor (following first parents only) of every changeset in set; set~N is equivalent to set^1^1..., with ^1 repeated N times.

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test-hup.t
20 lines | 504 B | text/troff | Tads3Lexer
Test hangup signal in the middle of transaction
$ "$TESTDIR/hghave" fifo || exit 80
$ hg init
$ mkfifo p
$ hg serve --stdio < p &
$ P=$!
$ (echo lock; echo addchangegroup; sleep 5) > p &
$ Q=$!
$ sleep 3
0
0
adding changesets
$ kill -HUP $P
$ wait
transaction abort!
rollback completed
killed!
$ echo .hg/* .hg/store/*
.hg/00changelog.i .hg/journal.branch .hg/journal.desc .hg/journal.dirstate .hg/requires .hg/store .hg/store/00changelog.i .hg/store/00changelog.i.a