r340: * Patch from Jorgen `forcer' Schaefer <forcer at mindless.com> (much

     modified)to make dh_installwm use new window manager registration method,
     update-alternatives. Closes: #52156, #34684 (latter bug is obsolete)
   * Fixed $dh{flavor} to be upper-case.
   * Deprecated dh_installemavcsen --number; use --priority instead. Also,
     the option parser requires the parameter be a number now. And,
     dh_installwm now accepts --priority, and window manager packages should
     start using it.
   * dh_installwm now behaves like a proper debhelper command, and reads
     debian/<package>.wm too. This is a small behavior change; filenames
     specified on the command line no longer apply to all packages it acts
     on. I can't belive this program existed for 2 years with such a glaring
     problem; I guess most people don't need ot register 5 wm's in 3
     sub-packages. Anyway, it can handle such things now. :-)
   * Moved Dh_*.pm to /usr/lib/perl5/Debian/Debhelper. *big* change.

1 files changed, 371 insertions, 0 deletions

diff --git a/Debian/Debhelper/Dh_Lib.pm b/Debian/Debhelper/Dh_Lib.pm
new file mode 100644
index 00000000..915d37af
--- /dev/null
+++ b/Debian/Debhelper/Dh_Lib.pm
@@ -0,0 +1,371 @@
+#!/usr/bin/perl -w
+#
+# Library functions for debhelper programs, perl version.
+#
+# Joey Hess, GPL copyright 1997, 1998.
+
+package Debian::Debhelper::Dh_Lib;
+use strict;
+
+use Exporter;
+use vars qw(@ISA @EXPORT %dh);
+@ISA=qw(Exporter);
+@EXPORT=qw(&init &doit &complex_doit &verbose_print &error &warning &tmpdir
+	    &pkgfile &pkgext &isnative &autoscript &filearray &GetPackages
+	    &xargs
+	    %dh);
+
+my $max_compat=2;
+
+sub init {
+	# If DH_OPTIONS is set, prepend it @ARGV.
+	if (defined($ENV{DH_OPTIONS})) {
+		unshift @ARGV,split(/\s+/,$ENV{DH_OPTIONS});
+	}
+
+	# Check to see if an argument on the command line starts with a dash.
+	# if so, we need to pass this off to the resource intensive 
+	# Getopt::Long, which I'd prefer to avoid loading at all if possible.
+	my $parseopt=undef;
+	my $arg;
+	foreach $arg (@ARGV) {
+		if ($arg=~m/^-/) {
+			$parseopt=1;
+			last;
+		}       
+	}
+	if ($parseopt) {
+		eval "use Debian::Debhelper::Dh_Getopt";
+		error($!) if $@;
+		%dh=Debian::Debhelper::Dh_Getopt::parseopts();
+	}
+
+	# Check to see if DH_VERBOSE environment variable was set, if so,
+	# make sure verbose is on.
+	if (defined $ENV{DH_VERBOSE} && $ENV{DH_VERBOSE} ne "") {
+		$dh{VERBOSE}=1;
+	}
+
+	# Check to see if DH_NO_ACT environment variable was set, if so, 
+	# make sure no act mode is on.
+	if (defined $ENV{DH_NO_ACT} && $ENV{DH_NO_ACT} ne "") {
+		$dh{NO_ACT}=1;
+	}
+
+	# Get the name of the main binary package (first one listed in
+	# debian/control).
+	my @allpackages=GetPackages();
+	$dh{MAINPACKAGE}=$allpackages[0];
+
+	# Check if packages to build have been specified, if not, fall back to
+	# the default, doing them all.
+	if (! defined $dh{DOPACKAGES} || ! @{$dh{DOPACKAGES}}) {
+		if ($dh{DOINDEP} || $dh{DOARCH} || $dh{DOSAME}) {
+			# User specified that all arch (in)dep package be 
+			# built, and there are none of that type.
+			error("I have no package to act on");
+		}
+		push @{$dh{DOPACKAGES}},@allpackages;
+	}
+
+	# Check to see if -P was specified. If so, we can only act on a single
+	# package.
+	if ($dh{TMPDIR} && $#{$dh{DOPACKAGES}} > 0) {
+		error("-P was specified, but multiple packages would be acted on (".join(",",@{$dh{DOPACKAGES}}).").");
+	}
+
+	# Figure out which package is the first one we were instructed to build.
+	# This package gets special treatement: files and directories specified on
+	# the command line may affect it.
+	$dh{FIRSTPACKAGE}=${$dh{DOPACKAGES}}[0];
+
+	# Split the U_PARAMS up into an array.
+	my $u=$dh{U_PARAMS};
+	undef $dh{U_PARAMS};
+	if (defined $u) {
+		push @{$dh{U_PARAMS}}, split(/\s+/,$u);
+	}
+}
+
+# Escapes out shell metacharacters in a word of shell script.
+sub escape_shell { my $word=shift;
+	# This list is from _Unix in a Nutshell_. (except '#')
+	$word=~s/([\s!"\$()*+#;<>?@\[\]\\`|~])/\\$1/g;
+	return $word;
+}
+
+# Run a command, and display the command to stdout if verbose mode is on.
+# All commands that modifiy files in $TMP should be ran via this 
+# function.
+#
+# Note that this cannot handle complex commands, especially anything
+# involving redirection. Use complex_doit instead.
+sub doit {
+	verbose_print(join(" ",map { escape_shell($_) } @_));
+	
+	if (! $dh{NO_ACT}) {
+		system(@_) == 0
+			|| error("command returned error code");
+		
+	}
+}
+
+# Run a command and display the command to stdout if verbose mode is on.
+# Use doit() if you can, instead of this function, because this function
+# forks a shell. However, this function can handle more complicated stuff
+# like redirection.
+sub complex_doit {
+	verbose_print(join(" ",@_));
+	
+	if (! $dh{NO_ACT}) {
+		# The join makes system get a scalar so it forks off a shell.
+		system(join(" ",@_)) == 0
+			|| error("command returned error code");
+	}			
+}
+
+# Run a command that may have a huge number of arguments, like xargs does.
+# Pass in a reference to an array containing the arguments, and then other
+# parameters that are the command and any parameters that should be passed to
+# it each time.
+sub xargs {
+	my $args=shift;
+
+        # The kernel can accept command lines up to 20k worth of characters.
+	my $command_max=20000;
+
+	# Figure out length of static portion of command.
+	my $static_length=0;
+	foreach (@_) {
+		$static_length+=length($_)+1;
+	}
+	
+	my @collect=();
+	my $length=$static_length;
+	foreach (@$args) {
+		if (length($_) + 1 + $static_length > $command_max) {
+			error("This command is greater than the maximum command size allowed by the kernel, and cannot be split up further. What on earth are you doing? \"@_ $_\"");
+		}
+		$length+=length($_) + 1;
+		if ($length < $command_max) {
+			push @collect, $_;
+		}
+		else {
+			doit(@_,@collect) if $#collect > -1;
+			@collect=($_);
+			$length=$static_length + length($_) + 1;
+		}
+	}
+	doit(@_,@collect) if $#collect > -1;
+}
+
+# Print something if the verbose flag is on.
+sub verbose_print { my $message=shift;
+	if ($dh{VERBOSE}) {
+		print "\t$message\n";
+	}
+}
+
+# Output an error message and exit.
+sub error { my $message=shift;
+	warning($message);
+	exit 1;
+}
+
+# Output a warning.
+sub warning { my $message=shift;
+	print STDERR basename($0).": $message\n";
+}
+
+# Returns the basename of the argument passed to it.
+sub basename { my $fn=shift;
+	$fn=~s:^.*/(.*?)$:$1:;
+	return $fn;
+}
+
+# Returns the directory name of the argument passed to it.
+sub dirname { my $fn=shift;
+	$fn=~s:^(.*)/.*?$:$1:;
+	return $fn;
+}
+
+# Pass in a number, will return true iff the current compatability level
+# is equal to that number.
+sub compat {
+	my $num=shift;
+	
+	my $c=1;
+	if (defined $ENV{DH_COMPAT}) {
+		$c=$ENV{DH_COMPAT};
+	}
+
+	if ($c > $max_compat) {
+		error("Sorry, but $max_compat is the highest compatability level of debhelper currently supported.");
+	}
+
+	return ($c == $num);
+}
+
+# Pass it a name of a binary package, it returns the name of the tmp dir to
+# use, for that package.
+sub tmpdir { my $package=shift;
+	if ($dh{TMPDIR}) {
+		return $dh{TMPDIR};
+	}
+	elsif (compat(1) && $package eq $dh{MAINPACKAGE}) {
+		# This is for back-compatability with the debian/tmp tradition.
+		return "debian/tmp";
+	}
+	else {
+		return "debian/$package";
+	}
+}
+
+# Pass this the name of a binary package, and the name of the file wanted
+# for the package, and it will return the actual filename to use. For
+# example if the package is foo, and the file is somefile, it will look for
+# debian/somefile, and if found return that, otherwise, if the package is
+# the main package, it will look for debian/foo, and if found, return that.
+# Failing that, it will return nothing.
+sub pkgfile { my $package=shift; my $filename=shift;
+	if (-f "debian/$package.$filename") {
+		return "debian/$package.$filename";
+	}
+	elsif ($package eq $dh{MAINPACKAGE} && -f "debian/$filename") {
+		return "debian/$filename";
+	}
+	return "";
+}
+
+# Pass it a name of a binary package, it returns the name to prefix to files
+# in debian for this package.
+sub pkgext { my $package=shift;
+	if ($package ne $dh{MAINPACKAGE}) {
+		return "$package.";
+	}
+	return "";
+}
+
+# Returns 1 if the package is a native debian package, null otherwise.
+# As a side effect, sets $dh{VERSION} to the version of this package.
+{
+	# Caches return code so it only needs to run dpkg-parsechangelog once.
+	my %isnative_cache;
+	
+	sub isnative { my $package=shift;
+		if (! defined $isnative_cache{$package}) {
+			# Make sure we look at the correct changelog.
+			my $isnative_changelog=pkgfile($package,"changelog");
+			if (! $isnative_changelog) {
+				$isnative_changelog="debian/changelog";
+			}
+
+			# Get the package version.
+			my $version=`dpkg-parsechangelog -l$isnative_changelog`;
+			($dh{VERSION})=$version=~m/Version: (.*)/m;
+
+			# Is this a native Debian package?
+			if ($dh{VERSION}=~m/.*-/) {
+				$isnative_cache{$package}=0;
+			}
+			else {
+				$isnative_cache{$package}=1;
+			}
+		}
+	
+		return $isnative_cache{$package};
+	}
+}
+
+# Automatically add a shell script snippet to a debian script.
+# Only works if the script has #DEBHELPER# in it.
+#
+# Parameters:
+# 1: package
+# 2: script to add to
+# 3: filename of snippet
+# 4: sed to run on the snippet. Ie, s/#PACKAGE#/$PACKAGE/
+sub autoscript { my $package=shift; my $script=shift; my $filename=shift; my $sed=shift || "";
+	# This is the file we will append to.
+	my $outfile="debian/".pkgext($package)."$script.debhelper";
+
+	# Figure out what shell script snippet to use.
+	my $infile;
+	if (defined($ENV{DH_AUTOSCRIPTDIR}) && 
+	    -e "$ENV{DH_AUTOSCRIPTDIR}/$filename") {
+		$infile="$ENV{DH_AUTOSCRIPTDIR}/$filename";
+	}
+	else {
+		if (-e "/usr/share/debhelper/autoscripts/$filename") {
+			$infile="/usr/share/debhelper/autoscripts/$filename";
+		}
+		else {
+			error("/usr/share/debhelper/autoscripts/$filename does not exist");
+		}
+	}
+
+	# TODO: do this in perl, perhaps?
+	complex_doit("echo \"# Automatically added by ".basename($0)."\">> $outfile");
+	complex_doit("sed \"$sed\" $infile >> $outfile");
+	complex_doit("echo '# End automatically added section' >> $outfile");
+}
+
+# Reads in the specified file, one word at a time, and returns an array of
+# the result.
+sub filearray { my $file=shift;
+	my @ret;
+	open (DH_FARRAY_IN,"<$file") || error("cannot read $file: $1");
+	while (<DH_FARRAY_IN>) {
+		push @ret,split(' ',$_);
+	}
+	close DH_FARRAY_IN;
+	
+	return @ret;
+}
+
+# Returns a list of packages in the control file.
+# Must pass "arch" or "indep" or "same" to specify arch-dependant or
+# -independant or same arch packages. If nothing is specified, returns all
+# packages.
+sub GetPackages { my $type=shift;
+	$type="" if ! defined $type;
+	
+	# Look up the build arch if we need to.
+	my$buildarch='';
+	if ($type eq 'same') {
+		$buildarch=`dpkg --print-architecture` || error($!);
+		chomp $buildarch;
+	}
+
+	my $package="";
+	my $arch="";
+	my @list=();
+	open (CONTROL,"<debian/control") ||
+		error("cannot read debian/control: $!\n");
+	while (<CONTROL>) {
+		chomp;
+		s/\s+$//;
+		if (/^Package:\s+(.*)/) {
+			$package=$1;
+		}
+		if (/^Architecture:\s+(.*)/) {
+			$arch=$1;
+		}
+		if (!$_ or eof) { # end of stanza.
+			if ($package &&
+			    (($type eq 'indep' && $arch eq 'all') ||
+			     ($type eq 'arch' && $arch ne 'all') ||
+			     ($type eq 'same' && ($arch eq 'any' || $arch =~ /\b$buildarch\b/)) ||
+			     ! $type)) {
+				push @list, $package;
+				$package="";
+				$arch="";
+			}
+		}
+	}
+	close CONTROL;
+
+	return @list;
+}
+
+1