hg 5.2.2: abort: Permission denied: '..../.hg/wcache/.manifestfulltextcache-gc3hkx8o~'

[Alan Mackenzie]

Hello again, Augie.

On Thu, Apr 02, 2020 at 16:14:48 -0400, Augie Fackler wrote:
> It looks like someone did something to that repo as root, and that was
> the first time hg sniffed some of the disk contents. It's safe to blow
> away the entire .hg/wcache directory, and hopefully that'll have you on
> your way.

I've worked out what it is.  It is the hg log that my regular backup
script does as root.  This wcache directory keeps coming back.

hg log, even as root, should surely not corrupt a repository.  It is
doing so here.

Now that I know what it is, I can implement workarounds.  But this is
ugly; it would be nice if it could be fixed properly.

Thanks!

> > On Apr 2, 2020, at 15:52, Alan Mackenzie <acm at muc.de> wrote:

> > Hello, mercurial.

> > I'm currently running mercurial 5.2.2 on Gentoo GNU/Linux.

> > On attempting, as a normal user, to apply a tag to a repository, I
> > get the error message in the subject line.  Both the repository and
> > the script which applies the tag are many years old, and have usually
> > worked flawlessly.  I think the change to the latest version of hg
> > coincided with the appearance of this error message.

> > ..../.hg/wcache looks like this:

> > drwxr-xr-x 2 root root 4096 Apr 26  2019 .hg/wcache/

> > , and the contents of ..../.hg/wcache look like this:

> > -rwx--x--x 1 root root  0 Mar 22  2019 checkisexec
> > lrwxrwxrwx 1 root root 16 Apr 26  2019 checklink -> checklink-target
> > -rw-r--r-- 1 root root  0 Apr 26  2019 checklink-target
> > -rw-r--r-- 1 root root  0 Mar 29  2019 checknoexec

> > .  It seems strange that this directory and its contents are owned by
> > root.  It seems an altogether strange directory in any case.

> > What is going on here that produces this error message?

> > Please help me get this repository working again.  Thanks!

-- 
Alan Mackenzie (Nuremberg, Germany).