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);
+ &pkgfile &pkgext &isnative &autoscript &filearray &filedoublearray
+ &GetPackages &basename &dirname &xargs %dh &compat &addsubstvar
+ &delsubstvar &excludefile);
-my $max_compat=3;
+my $max_compat=4;
sub init {
# If DH_OPTIONS is set, prepend it @ARGV.
if (defined($ENV{DH_OPTIONS})) {
+ # Ignore leading/trailing whitespace.
+ $ENV{DH_OPTIONS}=~s/^\s+//;
+ $ENV{DH_OPTIONS}=~s/\s+$//;
unshift @ARGV,split(/\s+/,$ENV{DH_OPTIONS});
}
# the default, doing them all.
if (! defined $dh{DOPACKAGES} || ! @{$dh{DOPACKAGES}}) {
if ($dh{DOINDEP} || $dh{DOARCH} || $dh{DOSAME}) {
- # User specified that all arch (in)dep package be
- # built, and there are none of that type.
- error("I have no package to act on");
+ error("You asked that all arch in(dep) packages be built, but there are none of that type.");
}
push @{$dh{DOPACKAGES}},@allpackages;
}
# 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 line of shell script.
+# Pass it an array containing the arguments of a shell command like would
+# be run by exec(). It turns that into a line like you might enter at the
+# shell, escaping metacharacters and quoting arguments that contain spaces.
sub escape_shell {
- my $line=shift;
- # This list is from _Unix in a Nutshell_. (except '#')
- $line~s/([\s!"\$()*+#;<>?@\[\]\\`|~])/\\$1/g;
- return $line;
+ my @args=@_;
+ my $line="";
+ my @ret;
+ foreach my $word (@args) {
+ if ($word=~/\s/) {
+ # Escape only a few things since it will be quoted.
+ # Note we use double quotes because you cannot
+ # escape ' in qingle quotes, while " can be escaped
+ # in double.
+ # This does make -V"foo bar" turn into "-Vfoo bar",
+ # but that will be parsed identically by the shell
+ # anyway..
+ $word=~s/([\n`\$"\\])/\$1/g;
+ push @ret, "\"$word\"";
+ }
+ else {
+ # This list is from _Unix in a Nutshell_. (except '#')
+ $word=~s/([\s!"\$()*+#;<>?@\[\]\\`|~])/\\$1/g;
+ push @ret,$word;
+ }
+ }
+ return join(' ', @ret);
}
# Run a command, and display the command to stdout if verbose mode is on.
# Note that this cannot handle complex commands, especially anything
# involving redirection. Use complex_doit instead.
sub doit {
- verbose_print(join(" ",map { escape_shell($_) } @_));
-
+ verbose_print(escape_shell(@_));
+
if (! $dh{NO_ACT}) {
system(@_) == 0 || error("command returned error code");
}
# The kernel can accept command lines up to 20k worth of characters.
my $command_max=20000; # LINUX SPECIFIC!!
+ # I could use POSIX::ARG_MAX, but that would be slow.
# Figure out length of static portion of command.
my $static_length=0;
# Returns the basename of the argument passed to it.
sub basename {
my $fn=shift;
-
+
+ $fn=~s/\/$//g; # ignore trailing slashes
$fn=~s:^.*/(.*?)$:$1:;
return $fn;
}
sub dirname {
my $fn=shift;
+ $fn=~s/\/$//g; # ignore trailing slashes
$fn=~s:^(.*)/.*?$:$1:;
return $fn;
}
-# Pass in a number, will return true iff the current compatability level
+# Pass in a number, will return true iff the current compatibility level
# is less than or equal to that number.
sub compat {
my $num=shift;
if (defined $ENV{DH_COMPAT}) {
$c=$ENV{DH_COMPAT};
}
+ elsif (-e 'debian/compat') {
+ # Try the file..
+ open (COMPAT_IN, "debian/compat") || die "debian/compat: $!";
+ $c=<COMPAT_IN>;
+ chomp $c;
+ }
if ($c > $max_compat) {
- error("Sorry, but $max_compat is the highest compatability level of debhelper currently supported.");
+ error("Sorry, but $max_compat is the highest compatibility level of debhelper currently supported.");
}
return ($c <= $num);
return $dh{TMPDIR};
}
elsif (compat(1) && $package eq $dh{MAINPACKAGE}) {
- # This is for back-compatability with the debian/tmp tradition.
+ # This is for back-compatibility with the debian/tmp tradition.
return "debian/tmp";
}
else {
sub pkgext {
my $package=shift;
- if ($package ne $dh{MAINPACKAGE}) {
- return "$package.";
+ if (compat(1) and $package eq $dh{MAINPACKAGE}) {
+ return "";
}
- return "";
+ return "$package.";
}
# Returns 1 if the package is a native debian package, null otherwise.
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. Pass in a true value for the second parameter if the contents
-# of the file are filenames that can be glob expanded.
-sub filearray {
+# Removes a whole substvar line.
+sub delsubstvar {
+ my $package=shift;
+ my $substvar=shift;
+
+ my $ext=pkgext($package);
+ my $substvarfile="debian/${ext}substvars";
+
+ if (-e $substvarfile) {
+ complex_doit("grep -v '^${substvar}=' $substvarfile > $substvarfile.new || true");
+ doit("mv", "$substvarfile.new","$substvarfile");
+ }
+}
+
+# Adds a dependency on some package to the specified
+# substvar in a package's substvar's file.
+sub addsubstvar {
+ my $package=shift;
+ my $substvar=shift;
+ my $deppackage=shift;
+ my $verinfo=shift;
+ my $remove=shift;
+
+ my $ext=pkgext($package);
+ my $substvarfile="debian/${ext}substvars";
+ my $str=$deppackage;
+ $str.=" ($verinfo)" if defined $verinfo && length $verinfo;
+
+ # Figure out what the line will look like, based on what's there
+ # now, and what we're to add or remove.
+ my $line="";
+ if (-e $substvarfile) {
+ my %items;
+ open(SUBSTVARS_IN, "$substvarfile") || die "read $substvarfile: $!";
+ while (<SUBSTVARS_IN>) {
+ chomp;
+ if (/^\Q$substvar\E=(.*)/) {
+ %items = map { $_ => 1} split(", ", $1);
+
+ last;
+ }
+ }
+ close SUBSTVARS_IN;
+ if (! $remove) {
+ $items{$str}=1;
+ }
+ else {
+ delete $items{$str};
+ }
+ $line=join(", ", keys %items);
+ }
+ elsif (! $remove) {
+ $line=$str;
+ }
+
+ if (length $line) {
+ complex_doit("echo '${substvar}=$line' >> $substvarfile");
+ }
+}
+
+# Reads in the specified file, one line at a time. splits on words,
+# and returns an array of arrays of the contents.
+# If a value is passed in as the second parameter, then glob
+# expansion is done in the directory specified by the parameter ("." is
+# frequently a good choice).
+sub filedoublearray {
my $file=shift;
- my $doglob=shift || '';
+ my $globdir=shift;
my @ret;
- open (DH_FARRAY_IN,"<$file") || error("cannot read $file: $1");
+ open (DH_FARRAY_IN, $file) || error("cannot read $file: $1");
while (<DH_FARRAY_IN>) {
+ my @line;
# Only do glob expansion in v3 mode.
- if ($doglob && compat(3)) {
- push @ret, map glob, split;
+ #
+ # The tricky bit is that the glob expansion is done
+ # as if we were in the specified directory, so the
+ # filenames that come out are relative to it.
+ if (defined $globdir && ! compat(2)) {
+ for (map { glob "$globdir/$_" } split) {
+ s#^$globdir/##;
+ push @line, $_;
+ }
}
else {
- push @ret, split;
+ @line = split;
}
+ push @ret, [@line];
}
close DH_FARRAY_IN;
return @ret;
}
+# Reads in the specified file, one word at a time, and returns an array of
+# the result. Can do globbing as does filedoublearray.
+sub filearray {
+ return map { @$_ } filedoublearray(@_);
+}
+
+# Passed a filename, returns true if -X says that file should be excluded.
+sub excludefile {
+ my $filename = shift;
+ foreach my $f (@{$dh{EXCLUDE}}) {
+ return 1 if $filename =~ /\Q$f\E/;
+ }
+ return 0;
+}
+
# Returns the build architecture. (Memoized)
{
my $arch;
my $package="";
my $arch="";
my @list=();
- open (CONTROL,"<debian/control") ||
+ my %seen;
+ open (CONTROL, 'debian/control') ||
error("cannot read debian/control: $!\n");
while (<CONTROL>) {
chomp;
s/\s+$//;
if (/^Package:\s*(.*)/) {
$package=$1;
+ # Detect duplicate package names in the same control file.
+ if (! $seen{$package}) {
+ $seen{$package}=1;
+ }
+ else {
+ error("debian/control has a duplicate entry for $package");
+ }
}
if (/^Architecture:\s*(.*)/) {
$arch=$1;
}
+
if (!$_ or eof) { # end of stanza.
if ($package &&
(($type eq 'indep' && $arch eq 'all') ||
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