mirror of https://github.com/artizirk/dotfiles
Arti Zirk
5 years ago
2 changed files with 564 additions and 11 deletions
@ -1,14 +1,4 @@
@@ -1,14 +1,4 @@
|
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#!/bin/bash |
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oIFS=$IFS |
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IFS=: |
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data_dirs=($XDG_DATA_DIRS) |
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IFS=$oIFS |
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data_dirs+=("${HOME}/.local/share") |
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fzf_history="${HOME}/.desktop_launcher_history" |
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for folder in ${data_dirs[*]}; do find "${folder%/}/applications" -name '*.desktop' -print0; done \ |
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| xargs -0 basename -z -s .desktop -a \ |
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| sort -r -z \ |
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| fzf +m --read0 --history="${fzf_history}" \ |
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| xargs -r swaymsg -t command exec gtk-launch |
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i3-dmenu-desktop --dmenu="fzf +m --history=\"${fzf_history}\"" |
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@ -0,0 +1,563 @@
@@ -0,0 +1,563 @@
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#!/usr/bin/env perl |
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# vim:ts=4:sw=4:expandtab |
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# |
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# © 2012 Michael Stapelberg |
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# |
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# No dependencies except for perl ≥ v5.10 |
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use strict; |
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use warnings qw(FATAL utf8); |
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use Data::Dumper; |
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use IPC::Open2; |
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use POSIX qw(locale_h); |
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use File::Find; |
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use File::Basename qw(basename); |
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use File::Temp qw(tempfile); |
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use Getopt::Long; |
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use Pod::Usage; |
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use v5.10; |
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use utf8; |
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use open ':encoding(UTF-8)'; |
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binmode STDOUT, ':utf8'; |
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binmode STDERR, ':utf8'; |
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|
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# reads in a whole file |
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sub slurp { |
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my ($filename) = @_; |
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my $fh; |
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if (!open($fh, '<', $filename)) { |
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warn "Could not open $filename: $!"; |
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return undef; |
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} |
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local $/; |
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my $result; |
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eval { |
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$result = <$fh>; |
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}; |
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if ($@) { |
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warn "Could not read $filename: $@"; |
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return undef; |
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} else { |
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return $result; |
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} |
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} |
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|
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my @entry_types; |
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my $dmenu_cmd = 'dmenu -i'; |
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my $result = GetOptions( |
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'dmenu=s' => \$dmenu_cmd, |
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'entry-type=s' => \@entry_types, |
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'version' => sub { |
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say "dmenu-desktop 1.5 © 2012 Michael Stapelberg"; |
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exit 0; |
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}, |
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'help' => sub { |
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pod2usage(-exitval => 0); |
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}); |
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die "Could not parse command line options" unless $result; |
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# Filter entry types and set default type(s) if none selected |
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my $valid_types = { |
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name => 1, |
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command => 1, |
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filename => 1, |
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}; |
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@entry_types = grep { exists($valid_types->{$_}) } @entry_types; |
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@entry_types = ('name', 'command') unless @entry_types; |
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# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ |
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# ┃ Convert LC_MESSAGES into an ordered list of suffixes to search for in the ┃ |
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# ┃ .desktop files (e.g. “Name[de_DE@euro]” for LC_MESSAGES=de_DE.UTF-8@euro ┃ |
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# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ |
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# For details on how the transformation of LC_MESSAGES to a list of keys that |
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# should be looked up works, refer to “Localized values for keys” of the |
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# “Desktop Entry Specification”: |
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# https://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html |
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my $lc_messages = setlocale(LC_MESSAGES); |
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# Ignore the encoding (e.g. .UTF-8) |
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$lc_messages =~ s/\.[^@]+//g; |
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my @suffixes = ($lc_messages); |
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# _COUNTRY and @MODIFIER are present |
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if ($lc_messages =~ /_[^@]+@/) { |
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my $no_modifier = $lc_messages; |
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$no_modifier =~ s/@.*//g; |
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push @suffixes, $no_modifier; |
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my $no_country = $lc_messages; |
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$no_country =~ s/_[^@]+//g; |
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push @suffixes, $no_country; |
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} |
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# Strip _COUNTRY and @MODIFIER if present |
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$lc_messages =~ s/[_@].*//g; |
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push @suffixes, $lc_messages; |
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# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ |
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# ┃ Read all .desktop files and store the values in which we are interested. ┃ |
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# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ |
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my %desktops; |
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# See https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html#variables |
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my $xdg_data_home = $ENV{XDG_DATA_HOME}; |
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$xdg_data_home = $ENV{HOME} . '/.local/share' if |
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!defined($xdg_data_home) || |
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$xdg_data_home eq '' || |
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! -d $xdg_data_home; |
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my $xdg_data_dirs = $ENV{XDG_DATA_DIRS}; |
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$xdg_data_dirs = '/usr/local/share/:/usr/share/' if |
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!defined($xdg_data_dirs) || |
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$xdg_data_dirs eq ''; |
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my @searchdirs = ("$xdg_data_home/applications/"); |
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for my $dir (split(':', $xdg_data_dirs)) { |
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push @searchdirs, "$dir/applications/"; |
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} |
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# Cleanup the paths, maybe some application does not cope with double slashes |
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# (the field code %k is replaced with the .desktop file location). |
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@searchdirs = map { s,//,/,g; $_ } @searchdirs; |
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# To avoid errors by File::Find’s find(), only pass existing directories. |
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@searchdirs = grep { -d $_ } @searchdirs; |
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find( |
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{ |
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wanted => sub { |
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return unless substr($_, -1 * length('.desktop')) eq '.desktop'; |
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my $relative = $File::Find::name; |
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# + 1 for the trailing /, which is missing in ::topdir. |
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substr($relative, 0, length($File::Find::topdir) + 1) = ''; |
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# Don’t overwrite files with the same relative path, we search in |
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# descending order of importance. |
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return if exists($desktops{$relative}); |
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$desktops{$relative} = $File::Find::name; |
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}, |
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no_chdir => 1, |
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}, |
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@searchdirs |
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); |
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my %apps; |
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for my $file (values %desktops) { |
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my $base = basename($file); |
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# _ is an invalid character for a key, so we can use it for our own keys. |
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$apps{$base}->{_Location} = $file; |
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# Extract all “Name” and “Exec” keys from the [Desktop Entry] group |
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# and store them in $apps{$base}. |
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my %names; |
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my $content = slurp($file); |
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next unless defined($content); |
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my @lines = split("\n", $content); |
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for my $line (@lines) { |
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my $first = substr($line, 0, 1); |
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next if $line eq '' || $first eq '#'; |
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next unless ($line eq '[Desktop Entry]' .. |
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($first eq '[' && |
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substr($line, -1) eq ']' && |
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$line ne '[Desktop Entry]')); |
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next if $first eq '['; |
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my ($key, $value) = ($line =~ /^ |
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( |
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[A-Za-z0-9-]+ # the spec specifies these as valid key characters |
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(?:\[[^]]+\])? # possibly, there as a locale suffix |
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) |
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\s* = \s* # whitespace around = should be ignored |
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(.*) # no restrictions on the values |
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$/x); |
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if ($key =~ /^Name/) { |
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$names{$key} = $value; |
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} elsif ($key eq 'Exec' || |
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$key eq 'TryExec' || |
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$key eq 'Path' || |
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$key eq 'Type') { |
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$apps{$base}->{$key} = $value; |
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} elsif ($key eq 'NoDisplay' || |
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$key eq 'Hidden' || |
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$key eq 'StartupNotify' || |
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$key eq 'Terminal') { |
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# Values of type boolean must either be string true or false, |
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# see “Possible value types”: |
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# https://standards.freedesktop.org/desktop-entry-spec/latest/ar01s03.html |
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$apps{$base}->{$key} = ($value eq 'true'); |
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} |
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} |
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for my $suffix (@suffixes) { |
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next unless exists($names{"Name[$suffix]"}); |
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$apps{$base}->{Name} = $names{"Name[$suffix]"}; |
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last; |
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} |
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# Fallback to unlocalized “Name”. |
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$apps{$base}->{Name} = $names{Name} unless exists($apps{$base}->{Name}); |
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} |
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# %apps now looks like this: |
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# |
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# %apps = { |
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# 'evince.desktop' => { |
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# 'Exec' => 'evince %U', |
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# 'Name' => 'Dokumentenbetrachter', |
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# '_Location' => '/usr/share/applications/evince.desktop' |
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# }, |
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# 'gedit.desktop' => { |
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# 'Exec' => 'gedit %U', |
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# 'Name' => 'gedit', |
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# '_Location' => '/usr/share/applications/gedit.desktop' |
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# } |
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# }; |
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|
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# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ |
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# ┃ Turn %apps inside out to provide Name → filename lookup. ┃ |
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# ┃ The Name is what we display in dmenu later. ┃ |
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# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ |
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my %choices; |
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for my $app (keys %apps) { |
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my $name = $apps{$app}->{Name}; |
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# Don’t try to use .desktop files which don’t have Type=application |
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next if (!exists($apps{$app}->{Type}) || |
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$apps{$app}->{Type} ne 'Application'); |
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# Skip broken files (Type=application, but no Exec key). |
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if (!exists($apps{$app}->{Exec}) || |
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$apps{$app}->{Exec} eq '') { |
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warn 'File ' . $apps{$app}->{_Location} . ' is broken: it contains Type=Application, but no Exec key/value pair.'; |
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next; |
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} |
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# Don’t offer apps which have NoDisplay == true or Hidden == true. |
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# See https://wiki.xfce.org/howto/customize-menu#hide_menu_entries |
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# for the difference between NoDisplay and Hidden. |
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next if (exists($apps{$app}->{NoDisplay}) && $apps{$app}->{NoDisplay}) || |
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(exists($apps{$app}->{Hidden}) && $apps{$app}->{Hidden}); |
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if (exists($apps{$app}->{TryExec})) { |
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my $tryexec = $apps{$app}->{TryExec}; |
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if (substr($tryexec, 0, 1) eq '/') { |
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# Skip if absolute path is not executable. |
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next unless -x $tryexec; |
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} else { |
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# Search in $PATH for the executable. |
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my $found = 0; |
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for my $path (split(':', $ENV{PATH})) { |
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next unless -x "$path/$tryexec"; |
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$found = 1; |
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last; |
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} |
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next unless $found; |
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} |
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} |
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|
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if ((scalar grep { $_ eq 'name' } @entry_types) > 0) { |
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if (exists($choices{$name})) { |
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# There are two .desktop files which contain the same “Name” value. |
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# I’m not sure if that is allowed to happen, but we disambiguate the |
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# situation by appending “ (2)”, “ (3)”, etc. to the name. |
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# |
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# An example of this happening is exo-file-manager.desktop and |
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# thunar-settings.desktop, both of which contain “Name=File Manager”. |
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my $inc = 2; |
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$inc++ while exists($choices{"$name ($inc)"}); |
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$name = "$name ($inc)"; |
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} |
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$choices{$name} = $app; |
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next; |
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} |
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if ((scalar grep { $_ eq 'command' } @entry_types) > 0) { |
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my $command = $apps{$app}->{Exec}; |
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# Handle escape sequences (should be done for all string values, but does |
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# matter here). |
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my %escapes = ( |
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'\\s' => ' ', |
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'\\n' => '\n', |
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'\\t' => '\t', |
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'\\r' => '\r', |
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'\\\\' => '\\', |
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); |
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$command =~ s/(\\[sntr\\])/$escapes{$1}/go; |
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|
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# Extract executable |
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if ($command =~ m/^\s*([^\s\"]+)(?:\s|$)/) { |
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# No quotes |
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$command = $1; |
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} elsif ($command =~ m/^\s*\"([^\"\\]*(?:\\.[^\"\\]*)*)\"(?:\s|$)/) { |
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# Quoted, remove quotes and fix escaped characters |
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$command = $1; |
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$command =~ s/\\([\"\`\$\\])/$1/g; |
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} else { |
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# Invalid quotes, fallback to whitespace |
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($command) = split(' ', $command); |
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} |
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|
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# Don’t add “geany” if “Geany” is already present. |
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my @keys = map { lc } keys %choices; |
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if (!(scalar grep { $_ eq lc(basename($command)) } @keys) > 0) { |
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$choices{basename($command)} = $app; |
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} |
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next; |
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} |
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|
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if ((scalar grep { $_ eq 'filename' } @entry_types) > 0) { |
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my $filename = basename($app, '.desktop'); |
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|
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# Don’t add “geany” if “Geany” is already present. |
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my @keys = map { lc } keys %choices; |
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next if (scalar grep { $_ eq lc($filename) } @keys) > 0; |
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|
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$choices{$filename} = $app; |
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} |
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} |
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|
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# %choices now looks like this: |
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# |
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# %choices = { |
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# 'Dokumentenbetrachter' => 'evince.desktop', |
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# 'gedit' => 'gedit.desktop' |
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# }; |
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|
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# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ |
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# ┃ Run dmenu to ask the user for their choice ┃ |
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# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ |
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|
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# open2 will just make dmenu’s STDERR go to our own STDERR. |
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my ($dmenu_out, $dmenu_in); |
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my $pid = eval { |
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open2($dmenu_out, $dmenu_in, $dmenu_cmd); |
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} or do { |
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print STDERR "$@"; |
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say STDERR "Running dmenu failed. Is dmenu installed at all? Try running dmenu -v"; |
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exit 1; |
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}; |
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|
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binmode $dmenu_in, ':utf8'; |
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binmode $dmenu_out, ':utf8'; |
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|
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# Feed dmenu the possible choices. |
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say $dmenu_in $_ for sort keys %choices; |
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close($dmenu_in); |
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|
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waitpid($pid, 0); |
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my $status = ($? >> 8); |
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|
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# Pass on dmenu’s exit status if there was an error. |
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exit $status unless $status == 0; |
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|
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my $choice = <$dmenu_out>; |
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# dmenu ≥ 4.4 adds a newline after the choice |
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chomp($choice); |
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my $app; |
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# Exact match: the user chose “Avidemux (GTK+)” |
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if (exists($choices{$choice})) { |
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$app = $apps{$choices{$choice}}; |
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$choice = ''; |
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} else { |
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# Not an exact match: the user entered “Avidemux (GTK+) ~/movie.mp4” |
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for my $possibility (keys %choices) { |
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next unless substr($choice, 0, length($possibility)) eq $possibility; |
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$app = $apps{$choices{$possibility}}; |
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substr($choice, 0, length($possibility)) = ''; |
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# Remove whitespace separating the entry and arguments. |
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$choice =~ s/^\s//g; |
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last; |
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} |
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if (!defined($app)) { |
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warn "Invalid input: “$choice” does not match any application. Trying to execute nevertheless."; |
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$app->{Name} = ''; |
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$app->{Exec} = $choice; |
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# We assume that the app is old and does not support startup |
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# notifications because it doesn’t ship a desktop file. |
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$app->{StartupNotify} = 0; |
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$app->{_Location} = ''; |
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} |
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} |
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|
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# ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ |
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# ┃ Make i3 start the chosen application. ┃ |
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# ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ |
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|
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my $name = $app->{Name}; |
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my $exec = $app->{Exec}; |
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my $location = $app->{_Location}; |
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|
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# Quote as described by “The Exec key”: |
||||
# https://standards.freedesktop.org/desktop-entry-spec/latest/ar01s06.html |
||||
sub quote { |
||||
my ($str) = @_; |
||||
$str =~ s/("|`|\$|\\)/\\$1/g; |
||||
$str = qq|"$str"| if $str ne ""; |
||||
return $str; |
||||
} |
||||
|
||||
$choice = quote($choice); |
||||
$location = quote($location); |
||||
$name = quote($name); |
||||
|
||||
# Remove deprecated field codes, as the spec dictates. |
||||
$exec =~ s/%[dDnNvm]//g; |
||||
|
||||
# Replace filename field codes with the rest of the command line. |
||||
# Note that we assume the user uses precisely one file name, |
||||
# not multiple file names. |
||||
$exec =~ s/%[fF]/$choice/g; |
||||
|
||||
# If the program works with URLs, |
||||
# we assume the user provided a URL instead of a filename. |
||||
# As per the spec, there must be at most one of %f, %u, %F or %U present. |
||||
$exec =~ s/%[uU]/$choice/g; |
||||
|
||||
# The translated name of the application. |
||||
$exec =~ s/%c/$name/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}) && $app->{Terminal}) { |
||||
# For applications which specify “Terminal=true” (e.g. htop.desktop), |
||||
# we need to create a temporary script that contains the full command line |
||||
# as the syntax for starting commands with arguments varies from terminal |
||||
# emulator to terminal emulator. |
||||
# Then, we launch that script with i3-sensible-terminal. |
||||
my ($fh, $filename) = tempfile(); |
||||
binmode($fh, ':utf8'); |
||||
say $fh <<EOT; |
||||
#!/bin/sh |
||||
rm $filename |
||||
exec $exec |
||||
EOT |
||||
close($fh); |
||||
chmod 0755, $filename; |
||||
|
||||
$cmd = qq|exec i3-sensible-terminal -e "$filename"|; |
||||
} else { |
||||
# i3 executes applications by passing the argument to i3’s “exec” command |
||||
# as-is to $SHELL -c. The i3 parser supports quoted strings: When a string |
||||
# starts with a double quote ("), everything is parsed as-is until the next |
||||
# double quote which is NOT preceded by a backslash (\). |
||||
# |
||||
# Therefore, we escape all double quotes (") by replacing them with \" |
||||
$exec =~ s/"/\\"/g; |
||||
|
||||
if (exists($app->{StartupNotify}) && !$app->{StartupNotify}) { |
||||
$nosn = '--no-startup-id'; |
||||
} |
||||
$cmd = qq|exec $nosn "$exec"|; |
||||
} |
||||
|
||||
system('i3-msg', $cmd) == 0 or die "Could not launch i3-msg: $?"; |
||||
|
||||
=encoding utf-8 |
||||
|
||||
=head1 NAME |
||||
|
||||
i3-dmenu-desktop - run .desktop files with dmenu |
||||
|
||||
=head1 SYNOPSIS |
||||
|
||||
i3-dmenu-desktop [--dmenu='dmenu -i'] [--entry-type=name] |
||||
|
||||
=head1 DESCRIPTION |
||||
|
||||
i3-dmenu-desktop is a script which extracts the (localized) name from |
||||
application .desktop files, offers the user a choice via dmenu(1) and then |
||||
starts the chosen application via i3 (for startup notification support). |
||||
The advantage of using .desktop files instead of dmenu_run(1) is that dmenu_run |
||||
offers B<all> binaries in your $PATH, including non-interactive utilities like |
||||
"sed". Also, .desktop files contain a proper name, information about whether |
||||
the application runs in a terminal and whether it supports startup |
||||
notifications. |
||||
|
||||
The .desktop files are searched in $XDG_DATA_HOME/applications (by default |
||||
$HOME/.local/share/applications) and in the "applications" subdirectory of each |
||||
entry of $XDG_DATA_DIRS (by default /usr/local/share/:/usr/share/). |
||||
|
||||
Files with the same name in $XDG_DATA_HOME/applications take precedence over |
||||
files in $XDG_DATA_DIRS, so that you can overwrite parts of the system-wide |
||||
.desktop files by copying them to your local directory and making changes. |
||||
|
||||
i3-dmenu-desktop displays the "Name" value in the localized version depending |
||||
on LC_MESSAGES as specified in the Desktop Entry Specification. |
||||
|
||||
You can pass a filename or URL (%f/%F and %u/%U field codes in the .desktop |
||||
file respectively) by appending it to the name of the application. E.g., if you |
||||
want to launch "GNU Emacs 24" with the patch /tmp/foobar.txt, you would type |
||||
"emacs", press TAB, type " /tmp/foobar.txt" and press ENTER. |
||||
|
||||
.desktop files with Terminal=true are started using i3-sensible-terminal(1). |
||||
|
||||
.desktop files with NoDisplay=true or Hidden=true are skipped. |
||||
|
||||
UTF-8 is supported, of course, but dmenu does not support displaying all |
||||
glyphs. E.g., xfce4-terminal.desktop's Name[fi]=Pääte will be displayed just |
||||
fine, but not its Name[ru]=Терминал. |
||||
|
||||
=head1 OPTIONS |
||||
|
||||
=over |
||||
|
||||
=item B<--dmenu=command> |
||||
|
||||
Execute command instead of 'dmenu -i'. This option can be used to pass custom |
||||
parameters to dmenu, or to make i3-dmenu-desktop start a custom (patched?) |
||||
version of dmenu. |
||||
|
||||
=item B<--entry-type=type> |
||||
|
||||
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 "libreoffice-writer" (type = filename). |
||||
|
||||
=back |
||||
|
||||
=head1 VERSION |
||||
|
||||
Version 1.5 |
||||
|
||||
=head1 AUTHOR |
||||
|
||||
Michael Stapelberg, C<< <michael at i3wm.org> >> |
||||
|
||||
=head1 LICENSE AND COPYRIGHT |
||||
|
||||
Copyright 2012 Michael Stapelberg. |
||||
|
||||
This program is free software; you can redistribute it and/or modify it |
||||
under the terms of the BSD license. |
||||
|
||||
=cut |
Loading…
Reference in new issue