https://bz.mercurial-scm.org/show_bug.cgi?id=6095
Bug ID: 6095
Summary: `hg amend` on windows can lead to a broken repository
Product: Mercurial
Version: stable branch
Hardware: PC
OS: Windows
Status: UNCONFIRMED
Severity: feature
Priority: wish
Component: Mercurial
Assignee: bugzi...@mercurial-scm.org
Reporter: 7895pul...@gmail.com
CC: mercurial-devel@mercurial-scm.org
I just ran `hg amend` on windows and it resulted in following output:
```
D:\Files\pulkit\something>hg amend --config extensions.amend=
warning: Watchman unavailable: "watchman" executable not in PATH ([Error 2] The
system cannot find the file specified)
saved backup bundle to
D:\Files\pulkit\something\.hg\strip-backup/2f6c61f2fcd3-0ff913ce-amend.hg
transaction abort!
failed to truncate 00changelog.i
rollback failed - please run hg recover
(failure reason: [Errno 13] Permission denied)
strip failed, backup bundle stored in
'D:\Files\pulkit\something\.hg\strip-backup/2f6c61f2fcd3-0ff913ce-amend.hg'
strip failed, unrecovered changes stored in
'D:\Files\pulkit\something\.hg\strip-backup/2f6c61f2fcd3-a8a80da8-temp.hg'
(fix the problem, then recover the changesets with "hg unbundle
'D:\Files\pulkit\something\.hg\strip-backup/2f6c61f2fcd3-a8a80da8-temp.hg'")
abort: Permission denied
```
There are two things which I think are worth improving here:
1) better support for rollbacking a transaction, there is something wrong in
amend code
2) fix this issue
The amend which I used was the amend extension present in core. There might be
issues with opening an editor and that can lead to Permission denied.
Although, the amend extension in core does not opens an editor IIUC.
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