Mercurial > hg
view tests/test-rebase-emptycommit.t @ 40036:acf5dbe39478
showstack: also handle SIGALRM
This is looking *very* handy when debugging mysterious hangs in a
test: you can wrap a hanging invocation in
`perl -e 'alarm shift @ARGV; exec @ARGV' 1`
for example, a hanging `hg pull` becomes
`perl -e 'alarm shift @ARGV; exec @ARGV' 1 hg pull`
where the `1` is the timeout in seconds before the process will be hit
with SIGALRM. After making that edit to the test file, you can then
use --extra-config-opt on run-tests.py to globaly enable showstack
during the test run, so you'll get full stack traces as you force your
hg to exit.
I wonder (but only a little, not enough to take action just yet) if we
should wire up some scaffolding in run-tests itself to automatically
wrap all commands in alarm(3) somehow to avoid hangs in the future?
Differential Revision: https://phab.mercurial-scm.org/D4870
author | Augie Fackler <augie@google.com> |
---|---|
date | Wed, 03 Oct 2018 16:03:16 -0400 |
parents | 4441705b7111 |
children | 09680349cc2d |
line wrap: on
line source
$ cat >> $HGRCPATH<<EOF > [extensions] > rebase= > drawdag=$TESTDIR/drawdag.py > EOF $ hg init non-merge $ cd non-merge $ hg debugdrawdag<<'EOS' > F > | > E > | > D > | > B C > |/ > A > EOS $ for i in C D E F; do > hg bookmark -r $i -i BOOK-$i > done $ hg debugdrawdag<<'EOS' > E > | > D > | > B > EOS $ hg log -G -T '{rev} {desc} {bookmarks}' o 7 E | o 6 D | | o 5 F BOOK-F | | | o 4 E BOOK-E | | | o 3 D BOOK-D | | | o 2 C BOOK-C | | o | 1 B |/ o 0 A With --keep, bookmark should move $ hg rebase -r 3+4 -d E --keep rebasing 3:e7b3f00ed42e "D" (BOOK-D) note: rebase of 3:e7b3f00ed42e created no changes to commit rebasing 4:69a34c08022a "E" (BOOK-E) note: rebase of 4:69a34c08022a created no changes to commit $ hg log -G -T '{rev} {desc} {bookmarks}' o 7 E BOOK-D BOOK-E | o 6 D | | o 5 F BOOK-F | | | o 4 E | | | o 3 D | | | o 2 C BOOK-C | | o | 1 B |/ o 0 A Move D and E back for the next test $ hg bookmark BOOK-D -fqir 3 $ hg bookmark BOOK-E -fqir 4 Bookmark is usually an indication of a head. For changes that are introduced by an ancestor of bookmark B, after moving B to B-NEW, the changes are ideally still introduced by an ancestor of changeset on B-NEW. In the below case, "BOOK-D", and "BOOK-E" include changes introduced by "C". $ hg rebase -s 2 -d E rebasing 2:dc0947a82db8 "C" (BOOK-C C) rebasing 3:e7b3f00ed42e "D" (BOOK-D) note: rebase of 3:e7b3f00ed42e created no changes to commit rebasing 4:69a34c08022a "E" (BOOK-E) note: rebase of 4:69a34c08022a created no changes to commit rebasing 5:6b2aeab91270 "F" (BOOK-F F) saved backup bundle to $TESTTMP/non-merge/.hg/strip-backup/dc0947a82db8-52bb4973-rebase.hg $ hg log -G -T '{rev} {desc} {bookmarks}' o 5 F BOOK-F | o 4 C BOOK-C BOOK-D BOOK-E | o 3 E | o 2 D | o 1 B | o 0 A Merge and its ancestors all become empty $ hg init $TESTTMP/merge1 $ cd $TESTTMP/merge1 $ hg debugdrawdag<<'EOS' > E > /| > B C D > \|/ > A > EOS $ for i in C D E; do > hg bookmark -r $i -i BOOK-$i > done $ hg debugdrawdag<<'EOS' > H > | > D > | > C > | > B > EOS $ hg rebase -r '(A::)-(B::)-A' -d H rebasing 2:dc0947a82db8 "C" (BOOK-C) note: rebase of 2:dc0947a82db8 created no changes to commit rebasing 3:b18e25de2cf5 "D" (BOOK-D) note: rebase of 3:b18e25de2cf5 created no changes to commit rebasing 4:86a1f6686812 "E" (BOOK-E E) note: rebase of 4:86a1f6686812 created no changes to commit saved backup bundle to $TESTTMP/merge1/.hg/strip-backup/b18e25de2cf5-1fd0a4ba-rebase.hg $ hg log -G -T '{rev} {desc} {bookmarks}' o 4 H BOOK-C BOOK-D BOOK-E | o 3 D | o 2 C | o 1 B | o 0 A Part of ancestors of a merge become empty $ hg init $TESTTMP/merge2 $ cd $TESTTMP/merge2 $ hg debugdrawdag<<'EOS' > G > /| > E F > | | > B C D > \|/ > A > EOS $ for i in C D E F G; do > hg bookmark -r $i -i BOOK-$i > done $ hg debugdrawdag<<'EOS' > H > | > F > | > C > | > B > EOS $ hg rebase -r '(A::)-(B::)-A' -d H rebasing 2:dc0947a82db8 "C" (BOOK-C) note: rebase of 2:dc0947a82db8 created no changes to commit rebasing 3:b18e25de2cf5 "D" (BOOK-D D) rebasing 4:03ca77807e91 "E" (BOOK-E E) rebasing 5:ad6717a6a58e "F" (BOOK-F) note: rebase of 5:ad6717a6a58e created no changes to commit rebasing 6:c58e8bdac1f4 "G" (BOOK-G G) saved backup bundle to $TESTTMP/merge2/.hg/strip-backup/b18e25de2cf5-2d487005-rebase.hg $ hg log -G -T '{rev} {desc} {bookmarks}' o 7 G BOOK-G |\ | o 6 E BOOK-E | | o | 5 D BOOK-D BOOK-F |/ o 4 H BOOK-C | o 3 F | o 2 C | o 1 B | o 0 A