.\"	$OpenBSD: pkg_delete.1,v 1.57 2017/03/25 19:53:33 espie Exp $
.\"
.\" Documentation and design originally from FreeBSD. All the code has
.\" been rewritten since. We keep the documentation's notice:
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" Jordan K. Hubbard
.\"
.\"
.Dd $Mdocdate: March 25 2017 $
.Dt PKG_DELETE 1
.Os
.Sh NAME
.Nm pkg_delete
.Nd delete software package distributions
.Sh SYNOPSIS
.Nm pkg_delete
.Op Fl acIimnqsVvXx
.Op Fl B Ar pkg-destdir
.Op Fl D Ar name Ns Op = Ns Ar value
.Op Ar pkg-name ...
.Sh DESCRIPTION
The
.Nm
command is used to delete packages that have been previously installed
with the
.Xr pkg_add 1
command.
.Pp
Package names may be specified either as the package name itself, or as a
filename which consists of the package name plus the
.Dq .tgz
suffix, or as a full pathname like
.Pa /var/db/pkg/pkgname ,
so that shell wildcards can be used.
.Pp
Version numbers and flavors
.Po
see
.Xr packages-specs 7
.Pc
can be omitted, unless the resulting specification is ambiguous.
.Pp
Otherwise,
.Ar pkg-name
in
.Nm
may use the same convenient shortcuts as
.Xr pkg_add 1 :
.Sq Nm Ar autoconf Ns % Ns Ar 2.13
will delete
.Ar autoconf
from the
.Ar 2.13
branch.
.Pp
.Nm
will
.Xr syslog 3
deletions by default.
.Pp
.Nm
relies on the file system information being consistent.
In case of a system crash,
.Pa /var/db/pkg
may become corrupted.
Use
.Xr pkg_check 8
to repair things.
.Pp
.Nm
may ask questions in interactive mode, or error out otherwise.
Interactive mode is the default on a tty, see
options
.Fl I/i .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl a
Delete unused dependencies (packages that are not needed by anything tagged
as installed manually).
Can be used without
.Ar pkgnames .
If used with
.Ar pkgnames ,
it will only delete non manual installs in the list.
.It Fl B Ar pkg-destdir
Set
.Ar pkg-destdir
as the prefix to prepend to any object deleted.
.It Fl c
Delete extra configuration file, mentioned as
.Dl @extra file
in the packing-list.
.It Fl D Ar name Ns Op = Ns Ar value
Force removal of the package.
.Ar name
is a keyword that states what failsafe
should be waived.
Recognized keywords include:
.Pp
.Bl -tag -width "dependenciesXX" -compact
.It Ar baddepend
Force the deletion of packages even if they reference nonexistent dependencies.
.It Ar checksum
Verify checksums before deleting files.
.It Ar dependencies
Also delete the whole set of packages that depends upon the requested packages.
.It Ar nonroot
Uninstall even if not running as root.
.It Ar scripts
External scripts may fail.
.El
.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.
.Nm
may ask questions to the user if faced with difficult decisions.
.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 deinstall a package, just report the steps that
would be taken if it were.
.It Fl qq
Do not bother with checksums for configuration files.
.It Fl s
Don't actually deinstall packages, report the disk size changes
that would happen.
.It Fl V
Turn on statistics output.
For now, only displays the number of packages done/total number of packages.
Several
.Fl V
will turn on more statistics in the future.
.It Fl v
Turn on verbose output.
Several
.Fl v
turn on more verbose output.
By default,
.Nm
is almost completely silent, but it reacts to keyboard status requests
.Po
see
.Xr stty 1
.Pc .
.Fl v
turns on basic messages,
.Fl vv
adds relevant system operations,
.Fl vvv
shows most internal computations apart from individual file/directory
additions, and
.Fl vvvvv
shows everything.
.It Fl X
Delete everything, except the list of packages that follow.
.It Fl x
Disable progress meter.
.El
.Sh TECHNICAL DETAILS
.Nm
examines installed package records for the
.Ar pkgname
specified,  checks inter-dependencies between installed packages,
deletes the package contents in an order respecting dependencies
(e.g., packages with dependencies get removed first), and finally
removes the package records.
.Pp
If a package is required by other installed packages not mentioned in
the list of packages to remove,
.Nm
will list those dependent packages and refuse to delete the package.
.Sh ENVIRONMENT
.Bl -tag -width PKG_CHECKSUM
.It Ev PKG_CHECKSUM
If set, verify files checksums during deletion, exactly like
.Fl D Ns Ar checksum .
.It Ev PKG_DBDIR
Where to look for installed packages instead of
.Pa /var/db/pkg .
.It Ev PKG_DESTDIR
Value for
.Ar pkg-destdir ,
if no
.Fl B
option is specified.
.El
.Sh SEE ALSO
.Xr pkg_add 1 ,
.Xr pkg_create 1 ,
.Xr pkg_info 1 ,
.Xr packages-specs 7 ,
.Xr pkg_check 8
.Sh AUTHORS
.Bl -tag -width indent -compact
.It An Jordan Hubbard
initial design
.It An Marc Espie
complete rewrite
.El