1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
package SBO::App::Remove;
# vim: ts=2:et
#
# authors: Luke Williams <xocel@iquidus.org>
# Jacob Pipkin <j@dawnrazor.net>
# Andreas Guldstrand <andreas.guldstrand@gmail.com>
# license: WTFPL <http://sam.zoy.org/wtfpl/COPYING>
use 5.16.0;
use strict;
use warnings FATAL => 'all';
use SBO::Lib qw/ get_inst_names get_installed_packages get_sbo_location get_build_queue merge_queues get_requires get_readme_contents prompt show_version in /;
use Getopt::Long qw(GetOptionsFromArray :config bundling);
use parent 'SBO::App';
our $VERSION = '2.5';
sub _parse_opts {
my $class = shift;
my @ARGS = @_;
my ($help, $vers, $non_int, $alwaysask);
GetOptionsFromArray(
\@ARGS,
'help|h' => \$help,
'version|v' => \$vers,
'nointeractive' => \$non_int,
'alwaysask|a' => \$alwaysask,
);
return { help => $help, vers => $vers, non_int => $non_int, alwaysask => $alwaysask, args => \@ARGS, };
}
sub run {
my $self = shift;
if ($self->{help}) { $self->show_usage(); return 0; }
if ($self->{vers}) { $self->show_version(); return 0; }
if (!@{ $self->{args} }) { $self->show_usage(); return 1; }
# current workflow:
# * get names of all installed SBo packages
# * compare commandline args to SBo packages as well as installed SBo packages
# * add reverse deps to list if they're not a dep of something else (which is not also already on the list)
# * confirm removal of each package on the list
# - while taking into account the options passed in such as $non_int, and $alwaysask
# - also offering to display README if %README% is passed
# * remove the confirmed packages
my @args = @{ $self->{args} };
my @installed = @{ get_installed_packages('SBO') };
my $installed = +{ map {; $_->{name}, $_->{pkg} } @installed };
@args = grep { check_sbo($_, $installed) } @args;
exit 1 unless @args;
my %sbos = map { $_ => 1 } @args;
my @remove = get_full_queue($installed, @args);
my @confirmed;
if ($self->{non_int}) {
@confirmed = @remove;
} else {
my $required_by = get_reverse_reqs($installed);
for my $remove (@remove) {
# if $remove was on the commandline, mark it as not needed,
# otherwise check if it is needed by something else.
my @required_by = get_required_by($remove->{name}, [map { $_->{name} } @confirmed], $required_by);
my $needed = $sbos{$remove->{name}} ? 0 : @required_by;
next if $needed and not $self->{alwaysask};
push @confirmed, $remove if confirm($remove, $needed ? @required_by : ());
}
}
if (@confirmed) {
$self->remove(@confirmed);
} else {
say "Nothing to remove.";
}
return 0;
}
sub show_usage {
my $self = shift;
my $fname = $self->{fname};
print <<"EOF";
Usage: $fname [options] sbo
Options (defaults shown first where applicable):
-h|--help:
this screen.
-v|--version:
version information.
-a|--alwaysask:
always ask to remove, even if required by other packages on system.
Note: optional dependencies need to be removed separately.
EOF
return 1;
}
sub check_sbo {
my ($sbo, $installed) = @_;
if (not get_sbo_location($sbo)) {
say "Unable to locate $sbo in the SlackBuilds.org tree.";
return 0;
}
if (not exists $installed->{$sbo}) {
say "$sbo is not installed from SlackBuilds.org.";
return 0;
}
return 1;
}
sub get_full_queue {
my ($installed, @sbos) = @_;
my $remove_queue = [];
my %warnings;
for my $sbo (@sbos) {
my $queue = get_build_queue([$sbo], \%warnings);
@$queue = reverse @$queue;
$remove_queue = merge_queues($remove_queue, $queue);
}
return map {; +{
name => $_,
pkg => $installed->{$_},
defined $warnings{$_} ? (warning => $warnings{$_}) : ()
} }
grep { exists $installed->{$_} }
@$remove_queue;
}
sub get_reverse_reqs {
my $installed = shift;
my %required_by;
for my $inst (keys %$installed) {
for my $req (@{ get_requires($inst) }) {
$required_by{$req}{$inst} = 1 if exists $installed->{$req};
}
}
return \%required_by;
}
sub get_required_by {
my ($sbo, $confirmed, $required_by) = @_;
my @dep_of;
if ( $required_by->{$sbo} ) {
for my $req_by (keys %{$required_by->{$sbo}}) {
push @dep_of, $req_by unless in($req_by => @$confirmed);
}
}
return @dep_of;
}
sub confirm {
my ($remove, @required_by) = @_;
if (@required_by) {
say sprintf "%s : required by %s", $remove->{name}, join ' ', @required_by;
} else {
say $remove->{name};
}
if ($remove->{warning}) {
say "It is recommended that you view the README before continuing.";
if (prompt("Display README now?", default => 'yes')) {
my $readme = get_readme_contents(get_sbo_location($remove->{name}));
if (not defined $readme) {
warn "Unable to open README for $remove->{name}.\n";
} else {
print "\n" . $readme;
}
}
}
if (prompt("Remove $remove->{name}?", default => @required_by ? 'no' : 'yes')) {
say " * Added to remove queue\n";
return 1;
}
say " * Ignoring\n";
return 0;
}
sub remove {
my $self = shift;
my $non_int = $self->{non_int};
my @confirmed = @_;
say sprintf "Removing %d package(s)", scalar @confirmed;
say join " ", map { $_->{name} } @confirmed;
if (!$non_int and !prompt("\nAre you sure you want to continue?", default => 'no')) {
return say 'Exiting.';
}
system("/sbin/removepkg", $_->{pkg}) for @confirmed;
say "All operations have completed successfully.";
}
1;
|
