This commit is contained in:
Michal Marek
Git OBS Bridge
parent
bf5059dcd1
commit
7d214b8167
305
guards
305
guards
@ -1,305 +0,0 @@
|
||||
#!/usr/bin/perl -w
|
||||
#############################################################################
|
||||
# Copyright (c) 2003-2007,2009 Novell, Inc.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of version 2 of the GNU General Public License as
|
||||
# published by the Free Software Foundation.
|
||||
#
|
||||
# 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, contact Novell, Inc.
|
||||
#
|
||||
# To contact Novell about this file by physical or electronic mail,
|
||||
# you may find current contact information at www.novell.com
|
||||
#############################################################################
|
||||
#
|
||||
# Guards:
|
||||
#
|
||||
# +xxx include if xxx is defined
|
||||
# -xxx exclude if xxx is defined
|
||||
# +!xxx include if xxx is not defined
|
||||
# -!xxx exclude if xxx is not defined
|
||||
#
|
||||
|
||||
use FileHandle;
|
||||
use Getopt::Long;
|
||||
use strict;
|
||||
|
||||
# Prototypes
|
||||
sub files_in($$);
|
||||
sub parse($$);
|
||||
sub help();
|
||||
|
||||
#sub strip_ext($) {
|
||||
# local ($_) = @_;
|
||||
# s/\.(diff?|patch)$//;
|
||||
#}
|
||||
|
||||
#sub try_ext($) {
|
||||
# my ($path) = @_;
|
||||
# for my $p in (($path, "$path.diff", "$path.dif", "$path.patch")) {
|
||||
# return $p
|
||||
# if (-f $p);
|
||||
# }
|
||||
# return undef;
|
||||
#}
|
||||
|
||||
sub slashme($) {
|
||||
my ($dir) = @_;
|
||||
$dir =~ s#([^/])$#$&/#; # append a slash if necessary
|
||||
if ($dir eq './') {
|
||||
return '';
|
||||
} else {
|
||||
return $dir;
|
||||
}
|
||||
}
|
||||
|
||||
# Generate a list of files in a directory
|
||||
#
|
||||
sub files_in($$) {
|
||||
my ($dir, $path) = @_;
|
||||
my $dh = new FileHandle;
|
||||
my (@files, $file);
|
||||
|
||||
|
||||
opendir $dh, length("$dir$path") ? "$dir$path" : '.'
|
||||
or die "$dir$path: $!\n";
|
||||
while ($file = readdir($dh)) {
|
||||
next if $file =~ /^(\.|\.\.|\.#.*|CVS|.*~)$/;
|
||||
if (-d "$dir$path$file") {
|
||||
@files = (@files, files_in($dir, "$path$file/"));
|
||||
} else {
|
||||
#print "[$path$file]\n";
|
||||
push @files, "$path$file";
|
||||
}
|
||||
}
|
||||
closedir $dh;
|
||||
return @files;
|
||||
}
|
||||
|
||||
# Parse a configuration file
|
||||
# Callback called with ($patch, @guards) arguments
|
||||
#
|
||||
sub parse($$) {
|
||||
my ($fh, $callback) = @_;
|
||||
|
||||
my $line = "";
|
||||
|
||||
while (<$fh>) {
|
||||
chomp;
|
||||
s/(^|\s+)#.*//;
|
||||
if (s/\\$/ /) {
|
||||
$line .= $_;
|
||||
next;
|
||||
}
|
||||
$line .= $_;
|
||||
my @guards = ();
|
||||
foreach my $token (split /[\s\t\n]+/, $line) {
|
||||
next if $token eq "";
|
||||
if ($token =~ /^[-+]/) {
|
||||
push @guards, $token;
|
||||
} else {
|
||||
#print "[" . join(",", @guards) . "] $token\n";
|
||||
&$callback($token, @guards);
|
||||
}
|
||||
}
|
||||
$line = "";
|
||||
}
|
||||
}
|
||||
|
||||
# Command line options
|
||||
#
|
||||
my ($dir, $config, $default, $check, $list, $invert_match, $with_guards) =
|
||||
( '', '-', 1, 0, 0, 0, 0);
|
||||
my @path;
|
||||
|
||||
# Help text
|
||||
#
|
||||
sub help() {
|
||||
print "$0 - select from a list of files guarded by conditions\n";
|
||||
print "SYNOPSIS: $0 [--prefix=dir] [--path=dir1:dir2:...]\n" .
|
||||
" [--default=0|1] [--check|--list] [--invert-match]\n" .
|
||||
" [--with-guards] [--config=file] symbol ...\n\n" .
|
||||
" (Default values: --path='" . join(':', @path) . "', " .
|
||||
"--default=$default)\n";
|
||||
exit 0;
|
||||
}
|
||||
|
||||
# Parse command line options
|
||||
#
|
||||
Getopt::Long::Configure ("bundling");
|
||||
eval {
|
||||
unless (GetOptions (
|
||||
'd|prefix=s' => \$dir,
|
||||
'c|config=s' => \$config,
|
||||
'C|check' => \$check,
|
||||
'l|list' => \$list,
|
||||
'w|with-guards' => \$with_guards,
|
||||
'p|path=s' => \@path,
|
||||
'D|default=i' => \$default,
|
||||
'v|invert-match' => \$invert_match,
|
||||
'h|help' => sub { help(); exit 0; })) {
|
||||
help();
|
||||
exit 1;
|
||||
}
|
||||
};
|
||||
if ($@) {
|
||||
print "$@";
|
||||
help();
|
||||
exit 1;
|
||||
}
|
||||
|
||||
@path = ('.')
|
||||
unless (@path);
|
||||
@path = split(/:/, join(':', @path));
|
||||
|
||||
my $fh = ($config eq '-') ? \*STDIN : new FileHandle($config)
|
||||
or die "$config: $!\n";
|
||||
|
||||
$dir = slashme($dir);
|
||||
|
||||
if ($check) {
|
||||
# Check for duplicate files, or for files that are not referenced by
|
||||
# the specification.
|
||||
|
||||
my $problems = 0;
|
||||
my @files;
|
||||
|
||||
foreach (@path) {
|
||||
@files = (@files, files_in($dir, slashme($_)));
|
||||
}
|
||||
my %files = map { $_ => 0 } @files;
|
||||
|
||||
parse($fh, sub {
|
||||
my ($patch, @guards) = @_;
|
||||
if (exists $files{$patch}) {
|
||||
$files{$patch}++;
|
||||
} else {
|
||||
print "Not found: $dir$patch\n";
|
||||
$problems++;
|
||||
}});
|
||||
|
||||
$fh->close();
|
||||
|
||||
my ($file, $ref);
|
||||
while (($file, $ref) = each %files) {
|
||||
next if $ref == 1;
|
||||
|
||||
if ($ref == 0) {
|
||||
print "Unused: $file\n" if $ref == 0;
|
||||
$problems++;
|
||||
}
|
||||
if ($ref > 1) {
|
||||
print "Warning: multiple uses: $file\n" if $ref > 1;
|
||||
# This is not an error if the entries are mutually exclusive...
|
||||
}
|
||||
}
|
||||
exit $problems ? 1 : 0;
|
||||
|
||||
} elsif ($list) {
|
||||
parse($fh, sub {
|
||||
my ($patch, @guards) = @_;
|
||||
print join(' ', @guards), ' '
|
||||
if (@guards && $with_guards);
|
||||
print "$dir$patch\n";
|
||||
});
|
||||
} else {
|
||||
# Generate a list of patches to apply.
|
||||
|
||||
my %symbols = map { $_ => 1 } @ARGV;
|
||||
|
||||
parse($fh, sub {
|
||||
my ($patch, @guards) = @_;
|
||||
|
||||
my $selected;
|
||||
if (@guards) {
|
||||
# If the first guard is -xxx, the patch is included by default;
|
||||
# if it is +xxx, the patch is excluded by default.
|
||||
$selected = ($guards[0] =~ /^-/);
|
||||
|
||||
foreach (@guards) {
|
||||
/^([-+])(!?)(.*)?/
|
||||
or die "Bad guard '$_'\n";
|
||||
|
||||
# Check if the guard matches
|
||||
if (($2 eq '!' && !exists $symbols{$3}) ||
|
||||
($2 eq '' && ( $3 eq '' || exists $symbols{$3}))) {
|
||||
# Include or exclude
|
||||
$selected = ($1 eq '+');
|
||||
}
|
||||
}
|
||||
} else {
|
||||
# If there are no guards, use the specified default result.
|
||||
$selected = $default;
|
||||
}
|
||||
|
||||
print "$dir$patch\n"
|
||||
if $selected ^ $invert_match;
|
||||
});
|
||||
|
||||
$fh->close();
|
||||
|
||||
exit 0;
|
||||
}
|
||||
|
||||
__END__
|
||||
|
||||
=head1 NAME
|
||||
|
||||
guards - select from a list of files guarded by conditions
|
||||
|
||||
=head1 SYNOPSIS
|
||||
|
||||
F<guards> [--prefix=F<dir>] [--path=F<dir1:dir2:...>] [--default=<0|1>]
|
||||
[--check|--list] [--invert-match] [--with-guards] [--config=<file>]
|
||||
I<symbol> ...
|
||||
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
||||
The script reads a configuration file that may contain so-called guards, file
|
||||
names, and comments, and writes those file names that satisfy all guards to
|
||||
standard output. The script takes a list of symbols as its arguments. Each line
|
||||
in the configuration file is processed separately. Lines may start with a
|
||||
number of guards. The following guards are defined:
|
||||
|
||||
=over
|
||||
|
||||
+I<xxx> Include the file(s) on this line if the symbol I<xxx> is defined.
|
||||
|
||||
-I<xxx> Exclude the file(s) on this line if the symbol I<xxx> is defined.
|
||||
|
||||
+!I<xxx> Include the file(s) on this line if the symbol I<xxx> is not defined.
|
||||
|
||||
-!I<xxx> Exclude the file(s) on this line if the symbol I<xxx> is not defined.
|
||||
|
||||
- Exclude this file. Used to avoid spurious I<--check> messages.
|
||||
|
||||
=back
|
||||
|
||||
The guards are processed left to right. The last guard that matches determines
|
||||
if the file is included. If no guard is specified, the I<--default>
|
||||
setting determines if the file is included.
|
||||
|
||||
If no configuration file is specified, the script reads from standard input.
|
||||
|
||||
The I<--check> option is used to compare the specification file against the
|
||||
file system. If files are referenced in the specification that do not exist, or
|
||||
if files are not enlisted in the specification file warnings are printed. The
|
||||
I<--path> option can be used to specify which directory or directories to scan.
|
||||
Multiple directories are eparated by a colon (C<:>) character. The
|
||||
I<--prefix> option specifies the location of the files.
|
||||
|
||||
Use I<--list> to list all files independend of any rules. Use I<--invert-match>
|
||||
to list only the excluded patches. Use I<--with-guards> to also include all
|
||||
inclusion and exclusion rules.
|
||||
|
||||
=head1 AUTHOR
|
||||
|
||||
Andreas Gruenbacher <agruen@suse.de>, SUSE Labs
|
||||
Loading…
Reference in New Issue
Block a user