[p5sagit/p5-mst-13.2.git] / Porting / patchls

#!/bin/perl -w
# 
#	patchls - patch listing utility
#
# Input is one or more patchfiles, output is a list of files to be patched.
#
# Copyright (c) 1997 Tim Bunce. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
# With thanks to Tom Horsley for the seed code.
#
# $Id: patchls,v 1.3 1997/06/10 21:38:45 timbo Exp $

use Getopt::Std;
use Text::Wrap qw(wrap $columns);
use Text::Tabs qw(expand unexpand);
use strict;

sub usage {
die q{
  patchls [options] patchfile [ ... ]

    -i     Invert: for each patched file list which patch files patch it.
    -h     no filename headers (like grep), only the listing.
    -l     no listing (like grep), only the filename headers.
    -c     Categorise the patch and sort by category (perl specific).
    -m     print formatted Meta-information (Subject,From,Msg-ID etc).
    -p N   strip N levels of directory Prefix (like patch), else automatic.
    -v     more verbose (-d for noisy debugging).
    -f F   only list patches which patch files matching regexp F
           (F has $ appended unless it contains a /).
    -I     just gather and display summary Information about the patches.
}
}

$columns = 70;

$::opt_p = undef;	# undef != 0
$::opt_d = 0;
$::opt_v = 0;
$::opt_m = 0;
$::opt_i = 0;
$::opt_h = 0;
$::opt_l = 0;
$::opt_c = 0;
$::opt_f = '';
$::opt_I = 0;

usage unless @ARGV;

getopts("mihlvcp:f:I") or usage;

my %cat_title = (
    'BUILD'	=> 'BUILD PROCESS',
    'CORE'	=> 'CORE LANGUAGE',
    'DOC'	=> 'DOCUMENTATION',
    'LIB'	=> 'LIBRARY AND EXTENSIONS',
    'PORT1'	=> 'PORTABILITY - WIN32',
    'PORT2'	=> 'PORTABILITY - OTHER',
    'TEST'	=> 'TESTS',
    'UTIL'	=> 'UTILITIES',
    'OTHER'	=> 'OTHER CHANGES',
);

my %ls;

# Style 1:
#	*** perl-5.004/embed.h  Sat May 10 03:39:32 1997
#	--- perl-5.004.fixed/embed.h    Thu May 29 19:48:46 1997
#	***************
#	*** 308,313 ****
#	--- 308,314 ----
#
# Style 2:
#	--- perl5.004001/mg.c   Sun Jun 08 12:26:24 1997
#	+++ perl5.004-bc/mg.c   Sun Jun 08 11:56:08 1997
#	@@ -656,9 +656,27 @@
# or (rcs, note the different date format)
#	--- 1.18	1997/05/23 19:22:04
#	+++ ./pod/perlembed.pod	1997/06/03 21:41:38
#
# Variation:
#	Index: embed.h

my($in, $prevline, $prevtype, $ls);

foreach my $argv (@ARGV) {
    $in = $argv;
    unless (open F, "<$in") {
	warn "Unable to open $in: $!\n";
	next;
    }
    print "Reading $in...\n" if $::opt_v and @ARGV > 1;
    $ls = $ls{$in} ||= { is_in => 1, in => $in };
    my $type;
    while (<F>) {
	unless (/^([-+*]{3}) / || /^(Index):/) {
	    # not an interesting patch line but possibly meta-information
	    next unless $::opt_m;
	    $ls->{From}{$1}=1       if /^From:\s+(.*\S)/i;
	    $ls->{Title}{$1}=1      if /^Subject:\s+(?:Re: )?(.*\S)/i;
	    $ls->{'Msg-ID'}{$1}=1   if /^Message-Id:\s+(.*\S)/i;
	    $ls->{Date}{$1}=1       if /^Date:\s+(.*\S)/i;
	    next;
	}
	$type = $1;
	next if /^--- [0-9,]+ ----$/ || /^\*\*\* [0-9,]+ \*\*\*\*$/;

	print "Last: $prevline","This: ${_}Got:  $1\n\n" if $::opt_d;

	# Some patches have Index lines but not diff headers
	# Patch copes with this, so must we. It's also handy for
	# documenting manual changes by simply adding Index: lines
	# to the file which describes the problem bing fixed.
	add_file($ls, $1), next if /^Index:\s+(.*)/;

	if (	($type eq '---' and $prevtype eq '***')	# Style 1
	    or	($type eq '+++' and $prevtype eq '---')	# Style 2
	) {
	    if (/^[-+*]{3} (\S+)\s+.*\d\d:\d\d:\d\d/) {	# double check
		add_file($ls, $1);
	    }
	    else {
		warn "$in $.: parse error (prev $prevtype, type $type)\n$prevline$_";
	    }
	}
    }
    continue {
	$prevline = $_;
	$prevtype = $type;
	$type = '';
    }
    # if we don't have a title for -m then use the file name
    $ls->{Title}{$in}=1 if $::opt_m
	and !$ls->{Title} and $ls->{out};

    $ls->{category} = $::opt_c
	? categorize_files([keys %{ $ls->{out} }], $::opt_v) : '';
}
print scalar(@ARGV)." files read.\n" if $::opt_v and @ARGV > 1;


my @ls  = sort {
    $a->{category} cmp $b->{category} || $a->{in} cmp $b->{in}
} values %ls;

if ($::opt_f) {		# filter out patches based on -f <regexp>
    my $out;
    $::opt_f .= '$' unless $::opt_f =~ m:/:;
    @ls = grep {
	my @out = keys %{$_->{out}};
	my $match = 0;
	for $out (@out) {
	    ++$match if $out =~ m/$::opt_f/o;
	}
	$match;
    } @ls;
}

if ($::opt_I) {
    my $n_patches = 0;
    my($in,$out);
    my %all_out;
    foreach $in (@ls) {
	next unless $in->{is_in};
	++$n_patches;
	my @outs = keys %{$in->{out}};
	@all_out{@outs} = ($in->{in}) x @outs;
    }
    my @all_out = sort keys %all_out;
    my @missing = grep { ! -f $_ } @all_out;
    print "$n_patches patch files patch ".@all_out." files (".@missing." missing)\n";
    if ($::opt_v and @missing) {
	print "Missing files:\n";
	foreach $out (@missing) {
	    printf "  %-20s\t%s\n", $out, $all_out{$out};
	}
    }
    exit 0+@missing;
}

unless ($::opt_c and $::opt_m) {
    foreach $ls (@ls) {
	next unless ($::opt_i) ? $ls->{is_out} : $ls->{is_in};
	list_files_by_patch($ls);
    }
}
else {
    my $c = '';
    foreach $ls (@ls) {
	next unless ($::opt_i) ? $ls->{is_out} : $ls->{is_in};
	print "\n  ------  $cat_title{$ls->{category}}  ------\n"
	    if $ls->{category} ne $c;
	$c = $ls->{category};
	unless ($::opt_i) {
	    list_files_by_patch($ls);
	}
	else {
	    my $out = $ls->{in};
	    print "\n$out patched by:\n";
	    # find all the patches which patch $out and list them
	    my @p = grep { $_->{out}->{$out} } values %ls;
	    foreach $ls (@p) {
		list_files_by_patch($ls, '');
	    }
	}
    }
    print "\n";
}

exit 0;


# ---


sub add_file {
    my $ls = shift;
    my $out = trim_name(shift);

    $ls->{out}->{$out} = 1;

    # do the -i inverse as well, even if we're not doing -i
    my $i = $ls{$out} ||= {
	is_out   => 1,
	in       => $out,
	category => $::opt_c ? categorize_files([ $out ], $::opt_v) : '',
    };
    $i->{out}->{$in} = 1;
}


sub trim_name {		# reduce/tidy file paths from diff lines
    my $name = shift;
    $name = "$name ($in)" if $name eq "/dev/null";
    $name =~ s:\\:/:g;	# adjust windows paths
    $name =~ s://:/:g;	# simplify (and make win \\share into absolute path)
    if (defined $::opt_p) {
	# strip on -p levels of directory prefix
	my $dc = $::opt_p;
	$name =~ s:^[^/]+/(.+)$:$1: while $dc-- > 0;
    }
    else {	# try to strip off leading path to perl directory
	# if absolute path, strip down to any *perl* directory first
	$name =~ s:^/.*?perl.*?/::i;
	$name =~ s:.*perl[-_]?5?[._]?[-_a-z0-9.+]*/::i;
	$name =~ s:^\./::;
    }
    return $name;
}


sub list_files_by_patch {
    my($ls, $name) = @_;
    $name = $ls->{in} unless defined $name;
    my @meta;
    if ($::opt_m) {
	foreach(qw(Title From Msg-ID)) {
	    next unless $ls->{$_};
	    my @list = sort keys %{$ls->{$_}};
	    push @meta, sprintf "%7s:  ", $_;
	    @list = map { "\"$_\"" } @list if $_ eq 'Title';
	    push @meta, my_wrap("","          ", join(", ",@list)."\n");
	}
	$name = "\n$name" if @meta and $name;
    }
    # don't print the header unless the file contains something interesting
    return if !@meta and !$ls->{out};
    print("$ls->{in}\n"),return  if $::opt_l;	# -l = no listing

    # a twisty maze of little options
    my $cat = ($ls->{category} and !$::opt_m) ? "\t$ls->{category}" : "";
    print "$name$cat: "	unless ($::opt_h and !$::opt_v) or !"$name$cat";
    print join('',"\n",@meta) if @meta;

    my @v = sort PATORDER keys %{ $ls->{out} };
    my $v = "@v\n";
    print $::opt_m ? "  Files:  ".my_wrap("","          ",$v) : $v;
}


sub my_wrap {
	my $txt = eval { expand(wrap(@_)) };	# die's on long lines!
    return $txt unless $@;
	return expand("@_");
}


sub categorize_files {
    my($files, $verb) = @_;
    my(%c, $refine);

    foreach (@$files) {	# assign a score to a file path
	# the order of some of the tests is important
	$c{TEST} += 5,next   if m:^t/:;
	$c{DOC}  += 5,next   if m:^pod/:;
	$c{UTIL} += 10,next  if m:^(utils|x2p|h2pl)/:;
	$c{PORT1}+= 15,next  if m:^win32:;
	$c{PORT2} += 15,next
	    if m:^(cygwin32|os2|plan9|qnx|vms)/:
	    or m:^(hints|Porting|ext/DynaLoader)/:
	    or m:^README\.:;
	$c{LIB}  += 10,next
	    if m:^(lib|ext)/:;
	$c{'CORE'} += 15,next
	    if m:^[^/]+[\._]([chH]|sym|pl)$:;
	$c{BUILD} += 10,next
	    if m:^[A-Z]+$: or m:^[^/]+\.SH$:
	    or m:^(install|configure|configpm):i;
	print "Couldn't categorise $_\n" if $::opt_v;
	$c{OTHER} += 1;
    }
    if (keys %c > 1) {	# sort to find category with highest score
      refine:
	++$refine;
	my @c = sort { $c{$b} <=> $c{$a} || $a cmp $b } keys %c;
	my @v = map  { $c{$_} } @c;
	if (@v > 1 and $refine <= 1 and "@v" =~ /^(\d) \1/
		and $c[0] =~ m/^(DOC|TESTS|OTHER)/) { # rare
	    print "Tie, promoting $c[1] over $c[0]\n" if $::opt_d;
	    ++$c{$c[1]};
	    goto refine;
	}
	print "  ".@$files." patches: ", join(", ", map { "$_: $c{$_}" } @c),".\n"
	    if $verb;
	return $c[0] || 'OTHER';
    }
    else {
	my($c, $v) = %c;
	$c ||= 'OTHER'; $v ||= 0;
	print "  ".@$files." patches: $c: $v\n" if $verb;
	return $c;
    }
}


sub PATORDER {		# PATORDER sort by Chip Salzenberg
    my ($i, $j);

    $i = ($a =~ m#^[A-Z]+$#);
    $j = ($b =~ m#^[A-Z]+$#);
    return $j - $i if $i != $j;

    $i = ($a =~ m#configure|hint#i) || ($a =~ m#[S_]H$#);
    $j = ($b =~ m#configure|hint#i) || ($b =~ m#[S_]H$#);
    return $j - $i if $i != $j;

    $i = ($a =~ m#\.pod$#);
    $j = ($b =~ m#\.pod$#);
    return $j - $i if $i != $j;

    $i = ($a =~ m#include/#);
    $j = ($b =~ m#include/#);
    return $j - $i if $i != $j;

    if ((($i = $a) =~ s#/+[^/]*$##)
	&& (($j = $b) =~ s#/+[^/]*$##)) {
	    return $i cmp $j if $i ne $j;
    }

    $i = ($a =~ m#\.h$#);
    $j = ($b =~ m#\.h$#);
    return $j - $i if $i != $j;

    return $a cmp $b;
}
Commit	Line	Data
08aa1457	1	#!/bin/perl -w
08aa1457	2	#
3e3baf6d	3	# patchls - patch listing utility
08aa1457	4	#
	5	# Input is one or more patchfiles, output is a list of files to be patched.
	6	#
3e3baf6d	7	# Copyright (c) 1997 Tim Bunce. All rights reserved.
	8	# This program is free software; you can redistribute it and/or
	9	# modify it under the same terms as Perl itself.
	10	#
	11	# With thanks to Tom Horsley for the seed code.
	12	#
08aa1457	13	# $Id: patchls,v 1.3 1997/06/10 21:38:45 timbo Exp $
08aa1457	14
3e3baf6d	15	use Getopt::Std;
08aa1457	16	use Text::Wrap qw(wrap $columns);
	17	use Text::Tabs qw(expand unexpand);
	18	use strict;
	19
3e3baf6d	20	sub usage {
84902520	21	die q{
3e3baf6d	22	patchls [options] patchfile [ ... ]
3e3baf6d	23
84902520	24	-i Invert: for each patched file list which patch files patch it.
	25	-h no filename headers (like grep), only the listing.
	26	-l no listing (like grep), only the filename headers.
	27	-c Categorise the patch and sort by category (perl specific).
	28	-m print formatted Meta-information (Subject,From,Msg-ID etc).
	29	-p N strip N levels of directory Prefix (like patch), else automatic.
	30	-v more verbose (-d for noisy debugging).
	31	-f F only list patches which patch files matching regexp F
	32	(F has $ appended unless it contains a /).
	33	-I just gather and display summary Information about the patches.
3e3baf6d	34	}
	35	}
	36
08aa1457	37	$columns = 70;
08aa1457	38
3e3baf6d	39	$::opt_p = undef; # undef != 0
08aa1457	40	$::opt_d = 0;
	41	$::opt_v = 0;
	42	$::opt_m = 0;
	43	$::opt_i = 0;
	44	$::opt_h = 0;
	45	$::opt_l = 0;
	46	$::opt_c = 0;
84902520	47	$::opt_f = '';
84902520	48	$::opt_I = 0;
08aa1457	49
3e3baf6d	50	usage unless @ARGV;
08aa1457	51
84902520	52	getopts("mihlvcp:f:I") or usage;
08aa1457	53
3e3baf6d	54	my %cat_title = (
84902520	55	'BUILD' => 'BUILD PROCESS',
84902520	56	'CORE' => 'CORE LANGUAGE',
3e3baf6d	57	'DOC' => 'DOCUMENTATION',
3e3baf6d	58	'LIB' => 'LIBRARY AND EXTENSIONS',
84902520	59	'PORT1' => 'PORTABILITY - WIN32',
	60	'PORT2' => 'PORTABILITY - OTHER',
	61	'TEST' => 'TESTS',
	62	'UTIL' => 'UTILITIES',
	63	'OTHER' => 'OTHER CHANGES',
3e3baf6d	64	);
08aa1457	65
	66	my %ls;
	67
	68	# Style 1:
	69	# *** perl-5.004/embed.h Sat May 10 03:39:32 1997
	70	# --- perl-5.004.fixed/embed.h Thu May 29 19:48:46 1997
	71	# ***************
	72	# * 308,313 **
	73	# --- 308,314 ----
	74	#
	75	# Style 2:
	76	# --- perl5.004001/mg.c Sun Jun 08 12:26:24 1997
	77	# +++ perl5.004-bc/mg.c Sun Jun 08 11:56:08 1997
	78	# @@ -656,9 +656,27 @@
	79	# or (rcs, note the different date format)
	80	# --- 1.18 1997/05/23 19:22:04
	81	# +++ ./pod/perlembed.pod 1997/06/03 21:41:38
	82	#
	83	# Variation:
	84	# Index: embed.h
	85
	86	my($in, $prevline, $prevtype, $ls);
	87
	88	foreach my $argv (@ARGV) {
	89	$in = $argv;
	90	unless (open F, "<$in") {
	91	warn "Unable to open $in: $!\n";
	92	next;
	93	}
	94	print "Reading $in...\n" if $::opt_v and @ARGV > 1;
3e3baf6d	95	$ls = $ls{$in} \|\|= { is_in => 1, in => $in };
08aa1457	96	my $type;
	97	while (<F>) {
	98	unless (/^([-+*]{3}) / \|\| /^(Index):/) {
	99	# not an interesting patch line but possibly meta-information
	100	next unless $::opt_m;
84902520	101	$ls->{From}{$1}=1 if /^From:\s+(.*\S)/i;
	102	$ls->{Title}{$1}=1 if /^Subject:\s+(?:Re: )?(.*\S)/i;
	103	$ls->{'Msg-ID'}{$1}=1 if /^Message-Id:\s+(.*\S)/i;
	104	$ls->{Date}{$1}=1 if /^Date:\s+(.*\S)/i;
08aa1457	105	next;
	106	}
	107	$type = $1;
	108	next if /^--- [0-9,]+ ----$/ \|\| /^\\\* [0-9,]+ \\\\$/;
	109
	110	print "Last: $prevline","This: ${_}Got: $1\n\n" if $::opt_d;
	111
	112	# Some patches have Index lines but not diff headers
3e3baf6d	113	# Patch copes with this, so must we. It's also handy for
	114	# documenting manual changes by simply adding Index: lines
	115	# to the file which describes the problem bing fixed.
08aa1457	116	add_file($ls, $1), next if /^Index:\s+(.*)/;
	117
	118	if ( ($type eq '---' and $prevtype eq '***') # Style 1
	119	or ($type eq '+++' and $prevtype eq '---') # Style 2
	120	) {
	121	if (/^[-+]{3} (\S+)\s+.\d\d:\d\d:\d\d/) { # double check
	122	add_file($ls, $1);
	123	}
	124	else {
	125	warn "$in $.: parse error (prev $prevtype, type $type)\n$prevline$_";
	126	}
	127	}
	128	}
	129	continue {
	130	$prevline = $_;
	131	$prevtype = $type;
	132	$type = '';
	133	}
3e3baf6d	134	# if we don't have a title for -m then use the file name
	135	$ls->{Title}{$in}=1 if $::opt_m
	136	and !$ls->{Title} and $ls->{out};
	137
	138	$ls->{category} = $::opt_c
	139	? categorize_files([keys %{ $ls->{out} }], $::opt_v) : '';
08aa1457	140	}
3e3baf6d	141	print scalar(@ARGV)." files read.\n" if $::opt_v and @ARGV > 1;
	142
	143
	144	my @ls = sort {
	145	$a->{category} cmp $b->{category} \|\| $a->{in} cmp $b->{in}
	146	} values %ls;
08aa1457	147
84902520	148	if ($::opt_f) { # filter out patches based on -f <regexp>
	149	my $out;
	150	$::opt_f .= '$' unless $::opt_f =~ m:/:;
	151	@ls = grep {
	152	my @out = keys %{$_->{out}};
	153	my $match = 0;
	154	for $out (@out) {
	155	++$match if $out =~ m/$::opt_f/o;
	156	}
	157	$match;
	158	} @ls;
	159	}
	160
	161	if ($::opt_I) {
	162	my $n_patches = 0;
	163	my($in,$out);
	164	my %all_out;
	165	foreach $in (@ls) {
	166	next unless $in->{is_in};
	167	++$n_patches;
	168	my @outs = keys %{$in->{out}};
	169	@all_out{@outs} = ($in->{in}) x @outs;
	170	}
	171	my @all_out = sort keys %all_out;
	172	my @missing = grep { ! -f $_ } @all_out;
	173	print "$n_patches patch files patch ".@all_out." files (".@missing." missing)\n";
	174	if ($::opt_v and @missing) {
	175	print "Missing files:\n";
	176	foreach $out (@missing) {
	177	printf " %-20s\t%s\n", $out, $all_out{$out};
	178	}
	179	}
	180	exit 0+@missing;
	181	}
	182
08aa1457	183	unless ($::opt_c and $::opt_m) {
3e3baf6d	184	foreach $ls (@ls) {
3e3baf6d	185	next unless ($::opt_i) ? $ls->{is_out} : $ls->{is_in};
08aa1457	186	list_files_by_patch($ls);
	187	}
	188	}
	189	else {
	190	my $c = '';
3e3baf6d	191	foreach $ls (@ls) {
3e3baf6d	192	next unless ($::opt_i) ? $ls->{is_out} : $ls->{is_in};
84902520	193	print "\n ------ $cat_title{$ls->{category}} ------\n"
84902520	194	if $ls->{category} ne $c;
08aa1457	195	$c = $ls->{category};
3e3baf6d	196	unless ($::opt_i) {
	197	list_files_by_patch($ls);
	198	}
	199	else {
	200	my $out = $ls->{in};
	201	print "\n$out patched by:\n";
	202	# find all the patches which patch $out and list them
	203	my @p = grep { $_->{out}->{$out} } values %ls;
	204	foreach $ls (@p) {
	205	list_files_by_patch($ls, '');
	206	}
	207	}
08aa1457	208	}
	209	print "\n";
	210	}
	211
3e3baf6d	212	exit 0;
	213
	214
	215	# ---
	216
08aa1457	217
	218	sub add_file {
	219	my $ls = shift;
	220	my $out = trim_name(shift);
3e3baf6d	221
	222	$ls->{out}->{$out} = 1;
	223
	224	# do the -i inverse as well, even if we're not doing -i
	225	my $i = $ls{$out} \|\|= {
	226	is_out => 1,
	227	in => $out,
	228	category => $::opt_c ? categorize_files([ $out ], $::opt_v) : '',
	229	};
	230	$i->{out}->{$in} = 1;
08aa1457	231	}
	232
	233
	234	sub trim_name { # reduce/tidy file paths from diff lines
	235	my $name = shift;
	236	$name = "$name ($in)" if $name eq "/dev/null";
84902520	237	$name =~ s:\\:/:g; # adjust windows paths
84902520	238	$name =~ s://:/:g; # simplify (and make win \\share into absolute path)
08aa1457	239	if (defined $::opt_p) {
	240	# strip on -p levels of directory prefix
	241	my $dc = $::opt_p;
	242	$name =~ s:^[^/]+/(.+)$:$1: while $dc-- > 0;
	243	}
	244	else { # try to strip off leading path to perl directory
	245	# if absolute path, strip down to any perl directory first
	246	$name =~ s:^/.?perl.?/::i;
84902520	247	$name =~ s:.perl[-_]?5?[._]?[-_a-z0-9.+]/::i;
08aa1457	248	$name =~ s:^\./::;
	249	}
	250	return $name;
	251	}
	252
	253
	254	sub list_files_by_patch {
3e3baf6d	255	my($ls, $name) = @_;
3e3baf6d	256	$name = $ls->{in} unless defined $name;
08aa1457	257	my @meta;
	258	if ($::opt_m) {
	259	foreach(qw(Title From Msg-ID)) {
	260	next unless $ls->{$_};
	261	my @list = sort keys %{$ls->{$_}};
	262	push @meta, sprintf "%7s: ", $_;
	263	@list = map { "\"$_\"" } @list if $_ eq 'Title';
	264	push @meta, my_wrap(""," ", join(", ",@list)."\n");
	265	}
3e3baf6d	266	$name = "\n$name" if @meta and $name;
08aa1457	267	}
08aa1457	268	# don't print the header unless the file contains something interesting
3e3baf6d	269	return if !@meta and !$ls->{out};
08aa1457	270	print("$ls->{in}\n"),return if $::opt_l; # -l = no listing
08aa1457	271
3e3baf6d	272	# a twisty maze of little options
	273	my $cat = ($ls->{category} and !$::opt_m) ? "\t$ls->{category}" : "";
	274	print "$name$cat: " unless ($::opt_h and !$::opt_v) or !"$name$cat";
08aa1457	275	print join('',"\n",@meta) if @meta;
08aa1457	276
3e3baf6d	277	my @v = sort PATORDER keys %{ $ls->{out} };
08aa1457	278	my $v = "@v\n";
	279	print $::opt_m ? " Files: ".my_wrap(""," ",$v) : $v;
	280	}
	281
	282
	283	sub my_wrap {
84902520	284	my $txt = eval { expand(wrap(@_)) }; # die's on long lines!
	285	return $txt unless $@;
	286	return expand("@_");
08aa1457	287	}
	288
	289
	290
3e3baf6d	291	sub categorize_files {
3e3baf6d	292	my($files, $verb) = @_;
08aa1457	293	my(%c, $refine);
3e3baf6d	294
	295	foreach (@$files) { # assign a score to a file path
	296	# the order of some of the tests is important
	297	$c{TEST} += 5,next if m:^t/:;
	298	$c{DOC} += 5,next if m:^pod/:;
	299	$c{UTIL} += 10,next if m:^(utils\|x2p\|h2pl)/:;
84902520	300	$c{PORT1}+= 15,next if m:^win32:;
	301	$c{PORT2} += 15,next
	302	if m:^(cygwin32\|os2\|plan9\|qnx\|vms)/:
08aa1457	303	or m:^(hints\|Porting\|ext/DynaLoader)/:
08aa1457	304	or m:^README\.:;
3e3baf6d	305	$c{LIB} += 10,next
08aa1457	306	if m:^(lib\|ext)/:;
3e3baf6d	307	$c{'CORE'} += 15,next
84902520	308	if m:^[^/]+[\._]([chH]\|sym\|pl)$:;
3e3baf6d	309	$c{BUILD} += 10,next
08aa1457	310	if m:^[A-Z]+$: or m:^[^/]+\.SH$:
84902520	311	or m:^(install\|configure\|configpm):i;
08aa1457	312	print "Couldn't categorise $_\n" if $::opt_v;
3e3baf6d	313	$c{OTHER} += 1;
	314	}
	315	if (keys %c > 1) { # sort to find category with highest score
	316	refine:
	317	++$refine;
	318	my @c = sort { $c{$b} <=> $c{$a} \|\| $a cmp $b } keys %c;
	319	my @v = map { $c{$_} } @c;
	320	if (@v > 1 and $refine <= 1 and "@v" =~ /^(\d) \1/
	321	and $c[0] =~ m/^(DOC\|TESTS\|OTHER)/) { # rare
	322	print "Tie, promoting $c[1] over $c[0]\n" if $::opt_d;
	323	++$c{$c[1]};
	324	goto refine;
	325	}
	326	print " ".@$files." patches: ", join(", ", map { "$_: $c{$_}" } @c),".\n"
	327	if $verb;
	328	return $c[0] \|\| 'OTHER';
08aa1457	329	}
3e3baf6d	330	else {
	331	my($c, $v) = %c;
	332	$c \|\|= 'OTHER'; $v \|\|= 0;
	333	print " ".@$files." patches: $c: $v\n" if $verb;
	334	return $c;
08aa1457	335	}
08aa1457	336	}
	337
	338
	339	sub PATORDER { # PATORDER sort by Chip Salzenberg
	340	my ($i, $j);
	341
	342	$i = ($a =~ m#^[A-Z]+$#);
	343	$j = ($b =~ m#^[A-Z]+$#);
	344	return $j - $i if $i != $j;
	345
	346	$i = ($a =~ m#configure\|hint#i) \|\| ($a =~ m#[S_]H$#);
	347	$j = ($b =~ m#configure\|hint#i) \|\| ($b =~ m#[S_]H$#);
	348	return $j - $i if $i != $j;
	349
	350	$i = ($a =~ m#\.pod$#);
	351	$j = ($b =~ m#\.pod$#);
	352	return $j - $i if $i != $j;
	353
	354	$i = ($a =~ m#include/#);
	355	$j = ($b =~ m#include/#);
	356	return $j - $i if $i != $j;
	357
	358	if ((($i = $a) =~ s#/+[^/]*$##)
	359	&& (($j = $b) =~ s#/+[^/]*$##)) {
	360	return $i cmp $j if $i ne $j;
	361	}
	362
	363	$i = ($a =~ m#\.h$#);
	364	$j = ($b =~ m#\.h$#);
	365	return $j - $i if $i != $j;
	366
	367	return $a cmp $b;
	368	}
	369