( )⚙ D6881 histedit: demonstrate breakage when `update` to a revision breaks

This is an archive of the discontinued Mercurial Phabricator instance.

Differential D6881

histedit: demonstrate breakage when `update` to a revision breaks
ClosedPublic

Authored by durin42 on Sep 25 2019, 1:54 PM.

Details

Reviewers
None
Group Reviewers
hg-reviewers
Commits
rHGf200bea8470b: histedit: demonstrate breakage when `update` to a revision breaks
Summary

I'm honestly impressed that nobody has hit this in the over a decade
that histedit has existed, but here we are.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

durin42 created this revision.Sep 25 2019, 1:54 PM
durin42 added a commit: rHGf200bea8470b: histedit: demonstrate breakage when `update` to a revision breaks.Sep 25 2019, 5:29 PM
This revision was not accepted when it landed; it landed in state Needs Review.
Closed by commit rHGf200bea8470b: histedit: demonstrate breakage when `update` to a revision breaks (authored by durin42). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Diff 16619

tests/test-histedit-non-commute-abort.t

| summary: b | summary: b
| |
o changeset: 0:cb9a9f314b8b o changeset: 0:cb9a9f314b8b
user: test user: test
date: Thu Jan 01 00:00:00 1970 +0000 date: Thu Jan 01 00:00:00 1970 +0000
summary: a summary: a
Early tree conflict doesn't leave histedit in a wedged state.
$ hg rm c
$ hg ci -m 'remove c'
$ echo collision > c
$ hg histedit e860deea161a --commands - 2>&1 <<EOF
> edit e860deea161a
> pick 652413bf663e
> pick bfa474341cc9
> pick 1b0954ff00fc
> EOF
c: untracked file differs
abort: untracked files in working directory differ from files in requested revision
[255]
BUG: we didn't actually change p1 of the working copy, but we're in a
histedit state. This confuses the process very badly and leads to
histedit stripping things it shouldn't (in obsmarker mode it inserts
bogus prune markers in this case.)
$ hg log -r 'p1()' -T'{node}\n'
1b0954ff00fccb15a37b679e4a35e9b01dfe685e
$ hg status --config ui.tweakdefaults=yes
? c
? e.orig
# The repository is in an unfinished *histedit* state.
# To continue: hg histedit --continue
# To abort: hg histedit --abort
$ hg histedit --continue
652413bf663e: skipping changeset (no changes)
bfa474341cc9: skipping changeset (no changes)
1b0954ff00fc: skipping changeset (no changes)
saved backup bundle to $TESTTMP/r/.hg/strip-backup/e860deea161a-a0738322-histedit.hg
$ hg log -GTcompact
warning: ignoring unknown working parent 1b0954ff00fc!
o 3[tip] 055a42cdd887 1970-01-01 00:00 +0000 test
| d
|
o 2 177f92b77385 1970-01-01 00:00 +0000 test
| c
|
o 1 d2ae7f538514 1970-01-01 00:00 +0000 test
| b
|
o 0 cb9a9f314b8b 1970-01-01 00:00 +0000 test
a
$ cd .. $ cd ..