r1987: * Do script fragement reversal only in v6, since it can break certian

[debhelper.git] / Debian / Debhelper / Dh_Lib.pm

diff --git a/Debian/Debhelper/Dh_Lib.pm b/Debian/Debhelper/Dh_Lib.pm
index f1b39226be061c4e7fa86475202f0885138b4e21..c72e559f44e676d69586e8373cf233d6b7955f88 100644 (file)
--- a/Debian/Debhelper/Dh_Lib.pm
+++ b/Debian/Debhelper/Dh_Lib.pm
@@ -16,7 +16,7 @@ use vars qw(@ISA @EXPORT %dh);
            &compat &addsubstvar &delsubstvar &excludefile &package_arch
            &is_udeb &udeb_filename &debhelper_script_subst &escape_shell);
 
-my $max_compat=5;
+my $max_compat=6;
 
 sub init {
        # If DH_OPTIONS is set, prepend it @ARGV.
@@ -55,7 +55,7 @@ sub init {
                foreach (@{$dh{EXCLUDE}}) {
                        my $x=$_;
                        $x=escape_shell($x);
-                       $x=~s/\./\\./g;
+                       $x=~s/\./\\\\./g;
                        $dh{EXCLUDE_FIND}.="-regex .\\*$x.\\* -or ";
                }
                $dh{EXCLUDE_FIND}=~s/ -or $//;
@@ -104,7 +104,7 @@ sub init {
        # If no error handling function was specified, just propigate
        # errors out.
        if (! exists $dh{ERROR_HANDLER} || ! defined $dh{ERROR_HANDLER}) {
-               $dh{ERROR_HANDLER}='exit $?';
+               $dh{ERROR_HANDLER}='exit \$?';
        }
 }
 
@@ -405,7 +405,7 @@ sub autoscript {
        my $filename=shift;
        my $sed=shift || "";
 
-       # This is the file we will append to.
+       # This is the file we will modify.
        my $outfile="debian/".pkgext($package)."$script.debhelper";
 
        # Figure out what shell script snippet to use.
@@ -423,9 +423,20 @@ sub autoscript {
                }
        }
 
-       complex_doit("echo \"# Automatically added by ".basename($0)."\">> $outfile");
-       complex_doit("sed \"$sed\" $infile >> $outfile");
-       complex_doit("echo '# End automatically added section' >> $outfile");
+       if (-e $outfile && ($script eq 'postrm' || $script eq 'prerm')
+          && !compat(5)) {
+               # Add fragments to top so they run in reverse order when removing.
+               complex_doit("echo \"# Automatically added by ".basename($0)."\"> $outfile.new");
+               complex_doit("sed \"$sed\" $infile >> $outfile.new");
+               complex_doit("echo '# End automatically added section' >> $outfile.new");
+               complex_doit("cat $outfile >> $outfile.new");
+               complex_doit("mv $outfile.new $outfile");
+       }
+       else {
+               complex_doit("echo \"# Automatically added by ".basename($0)."\">> $outfile");
+               complex_doit("sed \"$sed\" $infile >> $outfile");
+               complex_doit("echo '# End automatically added section' >> $outfile");
+       }
 }
 
 # Removes a whole substvar line.
@@ -553,12 +564,24 @@ sub excludefile {
        sub buildarch {
                return $arch if defined $arch;
 
-               $arch=`dpkg-architecture -qDEB_HOST_ARCH 2>/dev/null` || error($!);
+               $arch=`dpkg-architecture -qDEB_HOST_ARCH 2>/dev/null` || error("dpkg-architecture failed");
                chomp $arch;
                return $arch;
        }
 }
 
+# Passed an arch and a list of arches to match against, returns true if matched
+sub samearch {
+       my $arch=shift;
+       my @archlist=split(/\s+/,shift);
+
+       foreach my $a (@archlist) {
+               system("dpkg-architecture", "-a$arch", "-i$a") == 0 && return 1;
+       }
+
+       return 0;
+}
+
 # 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
@@ -604,7 +627,7 @@ sub getpackages {
                if (/^Architecture:\s*(.*)/) {
                        $arch=$1;
                }
-               if (/^X[BC]*-Package-Type:\s*(.*)/) {
+               if (/^(?:X[BC]*-)?Package-Type:\s*(.*)/) {
                        $package_type=$1;
                }
                
@@ -616,7 +639,7 @@ sub getpackages {
                        if ($package &&
                            (($type eq 'indep' && $arch eq 'all') ||
                             ($type eq 'arch' && $arch ne 'all') ||
-                            ($type eq 'same' && ($arch eq 'any' || $arch =~ /\b$buildarch\b/)) ||
+                            ($type eq 'same' && ($arch eq 'any' || samearch($buildarch, $arch))) ||
                             ! $type)) {
                                push @list, $package;
                                $package="";