summaryrefslogtreecommitdiff
path: root/Master/tlpkg/installer/install-menu-extl.pl
blob: 24a4d617d9e0e68897fd2702f06a88103fa6f254 (plain)
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
#!/usr/bin/env perl
# install-menu-extl.pl

# Copyright 2018-2021 Siep Kroonenberg

# This file is licensed under the GNU General Public License version 2
# or any later version.

# tell the frontend about all configurable options and terminate
# this output with an agreed-upon termination string.  the frontend
# will get the required package database information from the back
# end.  From this, it can deduce collections, schemes and platforms,
# but not the names of platforms.

# needed info:

# binaries + descriptions
# schemes
# collections, probably per scheme
# maybe directories to be configured

# current options:

# paper size a4 | letter
# allow restricted toggle
# generate formats
# install docs
# install sources
# create symlinks | 2 aspects of desktop integration
# switch to online CTAN

# then read the selected options back from the frontend

# when run_menu_extl reads 'startinst' from the frontend,
# run_menu_extl returns to install-tl.
# by then, the frontend has switched to non-blocking i/o
# and will capture the output of the actual installation
# on the fly inside a log window

our %vars; # only contains simple scalars

# from install-tl:
# The global variable %vars is an associative list which contains all
# variables and their values which can be changed by the user.
# needs to be our since TeXLive::TLUtils uses it

our $opt_in_place;
our $tlpdb;
our $media;
our $previoustlpdb;
our @collections_std;
our $texlive_release;

our $MENU_INSTALL = 0;
our $MENU_ABORT   = 1; # no cleanup afterwards
our $MENU_QUIT    = 2;

my $RETURN = $MENU_INSTALL;

do_remote_init();
print STDOUT "endload\n\n";

# %vars hash should eventually include each binary, collection and scheme
# as individual schalars.
# the above sub adds all platforms and collections to %vars
# but maybe not schemes so we add these now:

foreach my $pkg ($tlpdb->schemes) {
  $vars{$pkg}=($vars{'selected_scheme'} eq $pkg)? 1:0;
}
$vars{'scheme-custom'} = 0 unless defined $vars{'scheme-custom'};

# reading back current %vars from the frontend
sub read_vars {
  my $l = <STDIN>;
  chomp $l;
  if ($l ne 'vars') {
    return 0;
  }
  while (1) {
    $l = <STDIN>;
    chomp $l;
    if ($l =~ /^([^:]+): (.*)$/) {
      $vars{$1} = $2;
    } elsif ($l eq 'endvars') {
      return 1;
    } else {
      return 0;
    }
  }
  return 0;
}

# for each scheme and collection, print name, category and short description
sub print_descs {
  print "descs\n";
  foreach my $p ($tlpdb->schemes) {
    my $pkg = $tlpdb->get_package($p);
    print $pkg->name, ': ', $pkg->category, ' ', $pkg->shortdesc || "", "\n";
  }
  foreach my $p ($tlpdb->collections) {
    my $pkg = $tlpdb->get_package($p);
    print $pkg->name, ': ', $pkg->category, ' ', $pkg->shortdesc || "", "\n";
  }
  print "enddescs\n";
}

sub print_vars {
  print "vars\n";
  foreach my $key (sort keys %vars) {
    print $key, ': ', $vars{$key}, "\n";
  }
  print "endvars\n";
}

# run_menu_extl should be invoked by install-tl

sub run_menu_extl {
  # make sure we have a value for total_size:
  calc_depends();
  print "menudata\n";
  print "year: $texlive_release\n";
  print "svn: $::installerrevision\n";
  # for windows, add a key indicating elevated permissions
  if (win32()) {
    print "admin: ". TeXLive::TLWinGoo::admin() . "\n";
  }
  print_descs();

  print_vars();

  # tell the frontend the preferred order for schemes
  my @schemes = schemes_ordered_for_presentation();
  push @schemes, "scheme-custom";
  print "schemes_order: ", join(' ', @schemes), "\n";

  # binaries
  print "binaries\n";
  # binaries aren't packages; list their descriptions here
  my @binaries = $tlpdb->available_architectures;
  @binaries=sort TeXLive::TLUtils::sort_archs @binaries;
  foreach my $b (@binaries) {
    print $b, ': ', platform_desc($b), "\n";
  }
  print "endbinaries\n";

  print "endmenudata\n"; # this triggers the frontend menu

  # read input from frontend / install-tl-gui.tcl.
  # Four cases to consider:
  # 'calc': the frontend wants to update its ::vars array
  #   after some menu choices
  # 'checkdir': check whether $vars{TEXDIR} is creatable
  # 'startinst': done with choices, tell install-tl to
  #   start installation
  # 'quit': tell install-tl to clean up and quit

  # read from frontend
  while (1) {
    my $l = <STDIN>;
    chomp($l);
    if ($l eq 'quit') {
      return $MENU_QUIT;
    } elsif ($l eq 'calc') {
      if (read_vars()) {
        if ($vars{'selected_scheme'} eq 'scheme-custom') {
          calc_depends();
        } else {
          select_scheme($vars{'selected_scheme'});
        }
        $vars{'n_collections_selected'} = 0;
        foreach my $v (keys %vars) {
          if (substr($v, 0, 11) eq 'collection-' && $vars{$v}) {
            $vars{'n_collections_selected'} += 1;
          }
        }
        print_vars();
      } else {
        log("Illegal input '$l' from frontend");
        return $MENU_ABORT;
      }
    } elsif ($l eq 'checkdir') {
      my $td = <STDIN>;
      chomp $td;
      if (TeXLive::TLUtils::texdir_check($td)) {
        print "1\n";
      } else {
        print "0\n";
      }
    } elsif ($l eq 'startinst') {
      if (read_vars()) {
        calc_depends();
        return $MENU_INSTALL;
      } else {
        return $MENU_ABORT;
      }
    } else {
      return $MENU_ABORT;
    }
  }
} # run_menu_extl
$::run_menu = \&run_menu_extl;


1;