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#!/usr/bin/env perl
# Script to create a configuration file for kdesrc-build.
#
# Copyright © 2011 Michael Pyne. <mpyne@kde.org>
# Home page: http://kdesrc-build.kde.org/
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
use strict;
use 5.010;
use IO::Pipe;
use File::Copy;
use File::Temp qw/tempfile/;
our $VERSION = 0.02; # Not user-visible yet.
sub clearScreen
{
require POSIX;
my $termios = POSIX::Termios->new();
$termios->getattr(1); # Get STDOUT attributes
require Term::Cap;
my $terminal = Term::Cap->Tgetent({OSPEED => $termios->getospeed});
# Force the clear characters to be output immediately.
# Otherwise it might overlap with other output, like error messages.
local $| = 1;
print $terminal->Tputs('cl', 0);
return 0;
}
sub runDialogExecutable
{
my (@args) = @_;
# Allow for 2 more file descriptors (on top of the normally allowed 0, 1,
# 2) to survive the upcoming exec
# See "SYSTEM_FD_MAX" in perldoc:perlvar
$^F = 4;
my $pipe = new IO::Pipe;
my $pid;
if ($pid = fork()) {
# Parent
$pipe->reader();
my $output = <$pipe>;
waitpid $pid, 0;
my $result = ($? >> 8);
$pipe->close();
# dialog uses -1 as an exit code, Perl gets just the standard 8 bits
# the rest of UNIX uses...
if ($? == -1) {
clearScreen();
die "Failed to run dialog(1): $@";
}
elsif ($result == 255) {
clearScreen();
die "Canceled the dialog";
}
return $output || $result;
}
elsif (defined $pid) {
# Child
$pipe->writer();
my $outputFd = $pipe->fileno();
print "Using fd $outputFd";
exec ('dialog', '--output-fd', $outputFd,
'--backtitle', 'kdesrc-build setup',
@args);
}
else {
die "Unable to fork? $!";
}
}
sub getUserInput
{
my $prompt = shift;
my $default = shift;
my @args = qw/--inputbox 8 50/;
splice @args, 1, 0, $prompt;
push @args, $default if $default;
return runDialogExecutable(@args);
}
sub getMenuOption
{
my ($prompt, @opts) = @_;
@opts = @{$opts[0]} if ref $opts[0] eq 'ARRAY';
my @args = qw/--menu 20 70 18/;
splice @args, 1, 0, $prompt;
while(my ($k, $v) = splice (@opts, 0, 2)) {
push @args, $k, $v;
}
return runDialogExecutable(@args);
}
sub showInfo
{
my $message = shift;
my @args = qw/--msgbox 20 62/;
splice @args, 1, 0, $message;
return runDialogExecutable(@args);
}
sub getYesNoAnswer
{
my $prompt = shift;
my @args = qw/--yesno 8 55/;
splice @args, 1, 0, $prompt;
return runDialogExecutable(@args) == 0;
}
sub getDirectory
{
my $dir = shift;
my @args = qw/--dselect 20 70/;
splice @args, 1, 0, $dir;
return runDialogExecutable(@args);
}
sub getListOptions
{
my ($prompt, $opts, $enabled) = @_;
die "\$opts not a hash ref" unless (ref $opts eq 'ARRAY');
die "\$enabled not a hash ref" unless (ref $enabled eq 'HASH');
my @args = qw/--checklist 20 70 18/;
splice @args, 1, 0, $prompt;
splice @args, 0, 0, '--output-separator', ',';
while (my ($k, $v) = splice(@{$opts}, 0, 2)) {
push (@args, $k, $v, (exists ${$enabled}{$k} ? 'on' : 'off'));
}
my $output = runDialogExecutable(@args);
# Filter out empty results, remove quotes.
return map { m/^"(.*)"$/ } (grep { length $_ } (split(/,/, $output)));
}
# The 'dialog(1)' program is required, verify it exists before going
# further.
# We use the --help option since it doesn't send weird terminal characters to the screen
# and it's supported on dialog and Debian's dialog replacement called whiptail.
system('dialog', '--help') == 0 or do {
my $osError = "$!";
say "Unable to run the dialog(1) program, it is required for this setup script.";
if ($? == -1) {
say "\tThe program wouldn't even run, due to error: $osError";
}
else {
say "\tProgram ran, but exited with error: ", $? >> 8;
}
exit 1;
};
showInfo(<<EOF);
This program sets up a base kdesrc-build configuration to
use.
It can be modified as you wish later. Before the form is
presented, you will be asked if you would like an
explanation of the kdesrc-build file layout. It is
recommended to read this if you are not already familiar
with building software.
EOF
if (getYesNoAnswer('See the tutorial?')) {
showInfo(<<EOF);
kdesrc-build must download source code from the KDE
repositories. This source code is then compiled, in the
"build directory". Once complete, this compiled code is
installed to its final location, the "install directory".
This program will only configure the install location, but
all directories are configurable.
The space requirements vary, but typically the build
directory will require 3-5 times as much space as the
corresponding source directory. The space required of
installed software will be less than the build directory.
EOF
}
my $dev = getYesNoAnswer('Do you already have commit ' .
'access to the KDE repositories?');
if ($dev) {
$dev = getUserInput("What is your KDE identity username (for SVN access)?");
}
my $installDir = getMenuOption('Where do you want to install the software?',
[
home => "$ENV{HOME}/kde4 (default)",
custom => "Custom location, chosen next screen",
]);
if ($installDir eq 'custom') {
$installDir = getDirectory('/usr/local/kde4');
}
else {
$installDir = "~/kde4";
}
my @chosenModules = getListOptions(
"Which major module groups do you want to build?",
[
qt => 'The Qt library',
framework => 'KDE Framework libraries/runtime (required)',
workspace => 'KDE Plasma Desktop and workspace',
base => 'Essential KDE applications',
pim => 'Personal Information Management software',
],
{
framework => 1,
workspace => 1,
base => 1,
},
);
my $numCpus = getUserInput(
'How many CPU cores do you wish to use for building?', '2');
my $outputFileName = "$ENV{HOME}/.kdesrc-buildrc";
my $output; # Will be output filehandle.
while (-e $outputFileName) {
(my $printableName = $outputFileName) =~ s/^$ENV{HOME}/~/;
my $outputChoice = getMenuOption(
"$printableName already exists, what do you want to do?",
[
backup => 'Make a backup, then overwrite with the new configuration',
custom => 'Write the new configuration to a different file',
cancel => 'Cancel setup',
],
);
if ($outputChoice eq 'cancel') {
showInfo('Setup canceled');
exit 0;
}
if ($outputChoice eq 'custom') {
$outputFileName = getUserInput('Enter desired configuration file name.');
$outputFileName =~ s/^~/$ENV{HOME}/;
}
if ($outputChoice eq 'backup') {
copy($outputFileName, "$outputFileName~") or do {
my $error = "$!";
showInfo(<<EOF);
Failed to make backup of $outputFileName, due to error $error.
Configuration will be written to a temporary file instead.
EOF
($output, $outputFileName) = tempfile("kdesrc-buildrc-XXXX");
};
last;
}
}
# Filehandle could already be opened as a tempfile.
if (!$output) {
open ($output, '>', $outputFileName) or do {
my $error = "$!";
showInfo (<<EOF);
Unable to open output file $outputFileName for writing due to error $error.
EOF
die "$!";
}
}
print $output <<EOF;
# Autogenerated by kdesrc-build-setup. You may modify this file if desired.
global
EOF
if (grep { /^qt$/ } @chosenModules) {
print $output <<EOF;
# The path to your Qt installation.
qtdir ~/qt4
EOF
}
print $output <<EOF;
# KDE install directory
kdedir $installDir
# Directory for downloaded source code
source-dir ~/kdesrc
# Directory to build KDE into before installing
build-dir build
# Use multiple cores for building. Other options to GNU make may also be
# set.
make-options -j$numCpus
EOF
if ($dev) {
print $output <<EOF;
# Login to use for SVN. Anonymous SVN can be used by just deleting this
# line.
svn-server svn+ssh://$dev\@svn.kde.org/home/kde
EOF
}
print $output <<EOF;
end global
EOF
if (grep /^qt$/, @chosenModules) {
print $output <<EOF;
module qt
configure-flags -fast -debug -system-zlib -system-libpng -system-libjpeg \\
-plugin-sql-mysql -no-phonon \\
-dbus -webkit -nomake examples -nomake demos
# KDE's unmodified copy of Qt is used by default since git.kde.org supports
# cloning the module more reliably than gitorious. To use standard Qt as
# provided by Nokia, comment the following line and uncomment the next
# repository line.
repository kde:qt
# Nokia's Qt. Note that gitorious has had known issues checking out large
# git modules such as Qt. If there are failures try using KDE's qt (see
# above).
# repository git://gitorious.org/qt/qt.git
branch 4.8
end module
EOF
}
if (grep /^framework$/, @chosenModules) {
print $output <<EOF;
# These encompass modules that are not directly a part of KDE proper but are
# required or highly recommended for the KDE framework and are developed in
# the KDE source repository.
module-set framework-support
repository kde-projects
use-modules automoc cagibi attica soprano polkit-qt-1
end module-set
# Phonon provides the KDE multimedia layer. It requires an appropriate backend
# to be installed to actually implement multimedia.
module-set framework-phonon
repository kde-projects
use-modules phonon/phonon phonon-gstreamer phonon-vlc
end module-set
# Strigi provides file analysis tools for extracting information from files
# (e.g. music length, picture size, etc.) It is split into several submodules
# so do not alter the order in the use-modules below.
module-set strigi
repository kde-projects
use-modules strigi/libstreams strigi/libstreamanalyzer strigi/strigiutils \\
strigi/strigidaemon strigi/strigiclient
end module-set
# libdbusmenu is needed to support new-style Plasma system tray icons and
# support in the Unity shell. Installing a recent development package from your
# distribution should be sufficient, but if you want to have the latest then
# make sure you have the "Bazaar" program installed and uncomment the
# following:
#module libdbusmenu-qt
# The lp: prefix refers to Canonical's Launchpad repository
# repository bzr://lp:libdbusmenu-qt
#end module
# Base KDE framework libraries and the required runtime programs.
module-set framework
repository kde-projects
use-modules kdelibs kactivities kde-runtime
end module-set
EOF
}
# We'll check for pim again later.
if (grep /^pim$/, @chosenModules) {
print $output <<EOF;
module-set pimlibs
repository kde-projects
use-modules akonadi kdepimlibs
end module-set
EOF
}
if (grep /^workspace$/, @chosenModules) {
print $output <<EOF;
module-set workspace
repository kde-projects
use-modules kde-workspace kdeplasma-addons
end module-set
EOF
}
if (grep /^base$/, @chosenModules) {
print $output <<EOF;
module-set base
repository kde-projects
# kde-baseapps must precede kate and konsole, due to
# on-disk layout.
use-modules kde-baseapps kate konsole
end module-set
EOF
}
if (grep /^pim$/, @chosenModules) {
print $output <<EOF;
module-set pim
repository kde-projects
use-modules kdepim-runtime kdepim
end module-set
EOF
}
close($output);
$outputFileName =~ s/^$ENV{HOME}/~/;
showInfo("Generated configuration has been written to $outputFileName");
# Say same thing in text mode just in case.
system('clear');
say "Generated configuration has been written to $outputFileName";
if ($outputFileName ne '~/.kdesrc-buildrc') {
say <<EOF;
Note that your configuration file in $outputFileName will
NOT BE USED unless you either:
1. Overwrite your ~/.kdesrc-buildrc with $outputFileName, or
2. Copy $outputFileName to be called 'kdesrc-buildrc' in some directory
and ALWAYS run kdesrc-build from the directory, or
3. ALWAYS pass the "--rc-file $outputFileName" option to kdesrc-build when you
run it.
EOF
}
exit 0;
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