Mercurial > hg
view tests/test-username-newline.t @ 45375:8c466bcb0879
revert: remove dangerous `parents` argument from `cmdutil.revert()`
As we found out the hard way (thanks to spectral@ for figuring it
out!), `cmdutil.revert()`'s `parents` argument must be
`repo.dirstate.parents()` or things may go wrong. We had an extension
that passed in the target commit as the first parent. The `hg split`
command from the evolve extension seems to have made the same mistake,
but I haven't looked carefully.
The problem is that `cmdutil._performrevert()` calls
`dirstate.normal()` on reverted files if the commit to revert to
equals the first parent. So if you pass in `ctx=foo` and
`parents=(foo.node(), nullid)`, then `dirstate.normal()` will be
called for the revert files, even though they might not be clean in
the working copy.
There doesn't seem to be any reason, other than a tiny performance
benefit, to passing the `parents` around instead of looking them up
again in `cmdutil._performrevert()`, so that's what this patch does.
Differential Revision: https://phab.mercurial-scm.org/D8925
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Mon, 10 Aug 2020 21:46:47 -0700 |
parents | 5ac845ca059a |
children | 95c4cca641f6 |
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$ hg init $ touch a $ unset HGUSER $ echo "[ui]" >> .hg/hgrc $ echo "username= foo" >> .hg/hgrc $ echo " bar1" >> .hg/hgrc $ hg ci -Am m adding a abort: username 'foo\nbar1' contains a newline [255] $ rm .hg/hgrc $ HGUSER=`(echo foo; echo bar2)` hg ci -Am m adding a abort: username 'foo\nbar2' contains a newline [255] $ hg ci -Am m -u "`(echo foo; echo bar3)`" adding a transaction abort! rollback completed abort: username 'foo\nbar3' contains a newline! [255]