# No dependencies except for perl ≥ v5.10
use strict;
-use warnings;
+use warnings qw(FATAL utf8);
use Data::Dumper;
use IPC::Open2;
use POSIX qw(locale_h);
use Pod::Usage;
use v5.10;
use utf8;
-use open ':encoding(utf8)';
+use open ':encoding(UTF-8)';
binmode STDOUT, ':utf8';
binmode STDERR, ':utf8';
# reads in a whole file
sub slurp {
- open(my $fh, '<', shift) or die "$!";
+ my ($filename) = @_;
+ my $fh;
+ if (!open($fh, '<', $filename)) {
+ warn "Could not open $filename: $!";
+ return undef;
+ }
local $/;
- <$fh>;
+ my $result;
+ eval {
+ $result = <$fh>;
+ };
+ if ($@) {
+ warn "Could not read $filename: $@";
+ return undef;
+ } else {
+ return $result;
+ }
}
-my $entry_type = 'both';
+my @entry_types;
my $dmenu_cmd = 'dmenu -i';
my $result = GetOptions(
'dmenu=s' => \$dmenu_cmd,
- 'entry-type=s' => \$entry_type,
+ 'entry-type=s' => \@entry_types,
'version' => sub {
- say "dmenu-desktop 1.2 © 2012 Michael Stapelberg";
+ say "dmenu-desktop 1.5 © 2012 Michael Stapelberg";
exit 0;
},
'help' => sub {
die "Could not parse command line options" unless $result;
+# Filter entry types and set default type(s) if none selected
+my $valid_types = {
+ name => 1,
+ command => 1,
+ filename => 1,
+};
+@entry_types = grep { exists($valid_types->{$_}) } @entry_types;
+@entry_types = ('name', 'command') unless @entry_types;
+
# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
# ┃ Convert LC_MESSAGES into an ordered list of suffixes to search for in the ┃
# ┃ .desktop files (e.g. “Name[de_DE@euro]” for LC_MESSAGES=de_DE.UTF-8@euro ┃
# For details on how the transformation of LC_MESSAGES to a list of keys that
# should be looked up works, refer to “Localized values for keys” of the
# “Desktop Entry Specification”:
-# http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html
+# https://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html
my $lc_messages = setlocale(LC_MESSAGES);
# Ignore the encoding (e.g. .UTF-8)
# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
my %desktops;
-# See http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html#variables
+# See https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html#variables
my $xdg_data_home = $ENV{XDG_DATA_HOME};
$xdg_data_home = $ENV{HOME} . '/.local/share' if
!defined($xdg_data_home) ||
# Extract all “Name” and “Exec” keys from the [Desktop Entry] group
# and store them in $apps{$base}.
my %names;
- my @lines = split("\n", slurp($file));
+ my $content = slurp($file);
+ next unless defined($content);
+ my @lines = split("\n", $content);
for my $line (@lines) {
my $first = substr($line, 0, 1);
next if $line eq '' || $first eq '#';
$names{$key} = $value;
} elsif ($key eq 'Exec' ||
$key eq 'TryExec' ||
+ $key eq 'Path' ||
$key eq 'Type') {
$apps{$base}->{$key} = $value;
} elsif ($key eq 'NoDisplay' ||
$key eq 'Terminal') {
# Values of type boolean must either be string true or false,
# see “Possible value types”:
- # http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s03.html
+ # https://standards.freedesktop.org/desktop-entry-spec/latest/ar01s03.html
$apps{$base}->{$key} = ($value eq 'true');
}
}
next if (!exists($apps{$app}->{Type}) ||
$apps{$app}->{Type} ne 'Application');
+ # Skip broken files (Type=application, but no Exec key).
+ if (!exists($apps{$app}->{Exec}) ||
+ $apps{$app}->{Exec} eq '') {
+ warn 'File ' . $apps{$app}->{_Location} . ' is broken: it contains Type=Application, but no Exec key/value pair.';
+ next;
+ }
+
# Don’t offer apps which have NoDisplay == true or Hidden == true.
- # See http://wiki.xfce.org/howto/customize-menu#hide_menu_entries
+ # See https://wiki.xfce.org/howto/customize-menu#hide_menu_entries
# for the difference between NoDisplay and Hidden.
next if (exists($apps{$app}->{NoDisplay}) && $apps{$app}->{NoDisplay}) ||
(exists($apps{$app}->{Hidden}) && $apps{$app}->{Hidden});
}
}
- if ($entry_type eq 'name' || $entry_type eq 'both') {
+ if ((scalar grep { $_ eq 'name' } @entry_types) > 0) {
if (exists($choices{$name})) {
# There are two .desktop files which contain the same “Name” value.
# I’m not sure if that is allowed to happen, but we disambiguate the
}
$choices{$name} = $app;
+ next;
+ }
+
+ if ((scalar grep { $_ eq 'command' } @entry_types) > 0) {
+ my $command = $apps{$app}->{Exec};
+
+ # Handle escape sequences (should be done for all string values, but does
+ # matter here).
+ my %escapes = (
+ '\\s' => ' ',
+ '\\n' => '\n',
+ '\\t' => '\t',
+ '\\r' => '\r',
+ '\\\\' => '\\',
+ );
+ $command =~ s/(\\[sntr\\])/$escapes{$1}/go;
+
+ # Extract executable
+ if ($command =~ m/^\s*([^\s\"]+)(?:\s|$)/) {
+ # No quotes
+ $command = $1;
+ } elsif ($command =~ m/^\s*\"([^\"\\]*(?:\\.[^\"\\]*)*)\"(?:\s|$)/) {
+ # Quoted, remove quotes and fix escaped characters
+ $command = $1;
+ $command =~ s/\\([\"\`\$\\])/$1/g;
+ } else {
+ # Invalid quotes, fallback to whitespace
+ ($command) = split(' ', $command);
+ }
+
+ # Don’t add “geany” if “Geany” is already present.
+ my @keys = map { lc } keys %choices;
+ if (!(scalar grep { $_ eq lc(basename($command)) } @keys) > 0) {
+ $choices{basename($command)} = $app;
+ }
+ next;
}
- if ($entry_type eq 'command' || $entry_type eq 'both') {
- my ($command) = split(' ', $apps{$app}->{Exec});
- $choices{basename($command)} = $app;
+ if ((scalar grep { $_ eq 'filename' } @entry_types) > 0) {
+ my $filename = basename($app, '.desktop');
+
+ # Don’t add “geany” if “Geany” is already present.
+ my @keys = map { lc } keys %choices;
+ next if (scalar grep { $_ eq lc($filename) } @keys) > 0;
+
+ $choices{$filename} = $app;
}
}
# };
# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
-# ┃ Run dmenu to ask the user for her choice ┃
+# ┃ Run dmenu to ask the user for their choice ┃
# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
# open2 will just make dmenu’s STDERR go to our own STDERR.
my ($dmenu_out, $dmenu_in);
-my $pid = open2($dmenu_out, $dmenu_in, $dmenu_cmd);
+my $pid = eval {
+ open2($dmenu_out, $dmenu_in, $dmenu_cmd);
+} or do {
+ print STDERR "$@";
+ say STDERR "Running dmenu failed. Is dmenu installed at all? Try running dmenu -v";
+ exit 1;
+};
+
binmode $dmenu_in, ':utf8';
binmode $dmenu_out, ':utf8';
exit $status unless $status == 0;
my $choice = <$dmenu_out>;
+# dmenu ≥ 4.4 adds a newline after the choice
+chomp($choice);
my $app;
# Exact match: the user chose “Avidemux (GTK+)”
if (exists($choices{$choice})) {
last;
}
if (!defined($app)) {
- die "Invalid input: “$choice” does not match any application.";
+ warn "Invalid input: “$choice” does not match any application. Trying to execute nevertheless.";
+ $app->{Name} = '';
+ $app->{Exec} = $choice;
+ # We assume that the app is old and does not support startup
+ # notifications because it doesn’t ship a desktop file.
+ $app->{StartupNotify} = 0;
+ $app->{_Location} = '';
}
}
my $location = $app->{_Location};
# Quote as described by “The Exec key”:
-# http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s06.html
+# https://standards.freedesktop.org/desktop-entry-spec/latest/ar01s06.html
sub quote {
my ($str) = @_;
$str =~ s/("|`|\$|\\)/\\$1/g;
$choice = quote($choice);
$location = quote($location);
+$name = quote($name);
# Remove deprecated field codes, as the spec dictates.
$exec =~ s/%[dDnNvm]//g;
# XXX: Icons are not implemented. Is the complexity (looking up the path if
# only a name is given) actually worth it?
#$exec =~ s/%i/--icon $icon/g;
+$exec =~ s/%i//g;
# location of .desktop file
$exec =~ s/%k/$location/g;
# Literal % characters are represented as %%.
$exec =~ s/%%/%/g;
+if (exists($app->{Path}) && $app->{Path} ne '') {
+ $exec = 'cd ' . quote($app->{Path}) . ' && ' . $exec;
+}
+
my $nosn = '';
my $cmd;
if (exists($app->{Terminal}) && $app->{Terminal}) {
=head1 SYNOPSIS
- i3-dmenu-desktop [--dmenu='dmenu -i'] [--entry-type=both]
+ i3-dmenu-desktop [--dmenu='dmenu -i'] [--entry-type=name]
=head1 DESCRIPTION
=item B<--entry-type=type>
-Display the (localized) "Name" (type = name) or the command (type = command) or
-both (type = both) in dmenu.
+Display the (localized) "Name" (type = name), the command (type = command) or
+the (*.desktop) filename (type = filename) in dmenu. This option can be
+specified multiple times.
Examples are "GNU Image Manipulation Program" (type = name), "gimp" (type =
-command) and both (type = both).
+command), and "libreoffice-writer" (type = filename).
=back
=head1 VERSION
-Version 1.2
+Version 1.5
=head1 AUTHOR
projects / i3 / i3 / blobdiff