shelve crashes with "Tree transform is malformed" when renamed file already exists

Bug #660125 reported by Jelmer Vernooij on 2010-10-13
This bug affects 1 person
Affects Status Importance Assigned to Milestone
bzr (Debian)

Bug Description

As reported by Ben Finney in Debian bug 582210. I can still reproduce it with bzr 2.3b2.

Package: bzrtools
Version: 2.1.0-2
Severity: normal

When ‘bzr shelve’ attempts to shelve a rename, but the original
filename already exists, it gives an unhelpful error message:

$ bzr init foo
Created a standalone tree (format: 2a)
$ cd foo/
$ touch spam
$ bzr add
adding spam
$ bzr commit --message "Initial commit of foo project."
Committing to: /home/bignose/Projects/foo/
added spam
Committed revision 1.

$ bzr mv spam beans
spam => beans
$ touch spam
$ bzr shelve --all
Selected changes:
R beans => spam
bzr: ERROR: Tree transform is malformed [('duplicate', 'new-1', 'new-2', u'spam')]

Jelmer Vernooij (jelmer) on 2011-02-01
tags: added: shelf
tags: added: treetransform
Changed in bzr (Debian):
status: Unknown → Confirmed
Vincent Ladeuil (vila) wrote :

I added the provided reproducing recipe as a blackbox test in lp:~vila/bzr/660125-shelve-rename-existing

From there, the diagnosis is that the 'shelve' implementation is incomplete: it assumes that shelving a set of changes will produce no conflicts which is not the case here.

Shelving the 'beans -> spam' rename means 'spam' should be restored which conflicts with the unversioned 'spam' that has been added after the rename.

Jelmer Vernooij (jelmer) on 2017-11-09
tags: added: check-for-breezy
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