.\"	$OpenBSD: pkg_check.8,v 1.9 2017/02/15 13:19:08 jmc Exp $
.\"
.\" Copyright (c) 2010 Marc Espie <espie@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: February 15 2017 $
.Dt PKG_CHECK 8
.Os
.Sh NAME
.Nm pkg_check
.Nd check consistency of installed packages
.Sh SYNOPSIS
.Nm pkg_check
.Bk -words
.Op Fl FfIimnqvx
.Op Fl D Ar name Ns Op = Ns Ar value
.Ek
.Sh DESCRIPTION
.Nm
verifies as much information as it can about installed packages.
.Pp
.Nm
is not needed under normal circumstances, but it can be used to recover after
a catastrophic system failure in the middle of a
.Xr pkg_add 1
or
.Xr pkg_delete 1 .
.Pp
.Nm
performs the following checks:
.Bl -tag -width small
.It Packing-list sanity
Checks that
.Pa /var/db/pkg
only contains directories, that each directory holds a packing-list,
and that said packing-list is an actual packing-list that matches the directory.
.It Direct dependencies
Checks that all direct dependencies are recorded correctly, specifically, that
.Cm @depend
and
.Cm @wantlib
match actual packages.
It currently does not verify that
.Cm @wantlib
are reachable from the base package.
.It Reverse dependencies
Checks that all direct dependencies have corresponding reverse dependencies.
.It Files from packages
Checks that each file, link or directory in those packing-lists actually exist,
and that their checksum matches what's recorded in the packing-list.
.It Other files Po option Fl F Pc
Checks that there are no other random objects under
.Pa /usr/local .
.El
.Pp
By default,
.Nm
will only perform very safe transformations, such as the removal of core-dumps.
.Nm
will ask the user for more permanent changes in interactive mode,
or perform them anyway with option
.Fl f .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Xo
.Fl D
.Ar name Ns Op = Ns Ar value
.Xc
Extra options.
Recognized keywords include:
.Bl -tag -width "nosigXXX"
.It Ar nosig
Do not check digital signatures.
.El
.It Fl F
Check the filesystem for random objects.
.It Fl f
Force the removal of bogus package information.
.It Fl I
Force non-interactive mode.
Default is to be interactive when run from a tty.
.It Fl i
Force interactive mode, even if not run from a tty.
.It Fl m
Causes
.Nm
to always display the progress meter in cases it would not do so by default.
.It Fl n
Don't actually modify packages, just perform checks.
.It Fl q
Don't verify checksums for files, just check for their existence.
Doubling
.Fl q
will bypass that check entirely.
.It Fl v
Turn on verbose output.
Several
.Fl v
may turn on more verbose output.
.It Fl x
Disable progress meter.
.El
.Sh SEE ALSO
.Xr fsck 8
.Sh AUTHORS
This program was written by
.An Marc Espie .
.Sh BUGS
Work in progress.
The order of checks is not definitive, and more checks may be added.
Use with caution.