ports/113207: portupgrade fails when /var/db/pkg changes

[Stefan `Sec` Zehl]

>Number:         113207
>Category:       ports
>Synopsis:       portupgrade fails when /var/db/pkg changes
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu May 31 23:40:02 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Stefan `Sec` Zehl
>Release:        FreeBSD 6.2-STABLE i386
>Organization:
>Environment:
System: FreeBSD ice 6.2-STABLE FreeBSD 6.2-STABLE #38: Sun Feb 25 09:20:09 CET 2007 root at ice:/export/obj/export/src/sys/ICE i386

using portupgrade version portupgrade-2.2.6_3,2

	
>Description:

If /var/db/pkg is changed while portupgrade is running, portupgrade fails.

	
>How-To-Repeat:

use portupgrade to upgrade a port where compiling takes a long time.

While portupgrade is compiling that port use another window to remove an
unneeded port. (with pkg_delete <pkgname>)

Even if the upgraded port is depenency-wise completely unrelated to the
deleted port, portupgrade fails as soon as the compile finishes:

** Listing the failed packages (*:skipped / !:failed)
        ! net-p2p/amule2 (aMule-2.1.3_2)        (Failed to rewrite /var/db/pkg/ffmpeg-devel-2007.04.29_2/+CONTENTS: No such file or directory - /var/db/pkg/ffmpeg-devel-2007.04.29_2/+CONTENTS)

I think portupgrade shouldn't even try to touch this file. And earlier
versions of portupgrade did NOT fail in such a way.

>Fix:

	


>Release-Note:
>Audit-Trail:
>Unformatted: