aboutsummaryrefslogtreecommitdiff
blob: 039e5f30e8f3c15f08268b36e667757ffd160868 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
#!/usr/bin/perl -w
#
# echangelog: Update the ChangeLog for an ebuild.  For example:
#
#   $ echangelog 'Add ~alpha to KEYWORDS'
#   4a5,7
#   >   10 Feb 2003; Aron Griffis <agriffis@gentoo.org> oaf-0.6.8-r1.ebuild :
#   >   Add ~alpha to KEYWORDS
#   >

use strict;
use POSIX qw(strftime getcwd setlocale);
use File::Find;
use File::Basename;
use Getopt::Long;

# Fix bug 21022 by restricting to C locale
setlocale(&POSIX::LC_ALL, "C");

use Text::Wrap;
$Text::Wrap::columns = 77;
$Text::Wrap::unexpand = 0;

# Global variables
my (@files, @ebuilds, @conflicts, @trivial, @unknown, @new_versions, %actions);
my ($input, $editor, $entry, $user, $date, $text, $year, $vcs);
my ($opt_help, $opt_strict, $opt_version);

$opt_help = 0;
$opt_strict = 0;
$opt_version = 0;

my %vcs = (
	bzr => {
		diff => "bzr diff",
		status => "bzr status -S .",
		add => "bzr add",
		skip => 3,
		# The same as for hg.
		regex => qr/^=== \S+ file '\S+\/\S+\/((\S+)\.ebuild)/
	},
	cvs => {
		diff => "cvs -f diff -U0",
		status => "cvs -fn up",
		add => "cvs -f add",
		skip => 6,
		regex => qr/^Index: (([^\/]*?)\.ebuild)\s*$/
	},
	git => {
		diff => "git diff",
		status => "git diff-index HEAD --name-status",
		add => "git add",
		# This value should usually be 3 but on new file mode we need skip+1.
		# So 4 should be fine anyway.
		skip => 4,
		regex => qr/^diff \-\-git \S*\/((\S*)\.ebuild)/
	},
	hg => {
		diff => "hg diff",
		status => "hg status .",
		add => "hg add",
		skip => 3,
		# hg diff is relative to the root.
		# TODO: Write a proper regex :)
		regex => qr/diff \-r \S+ \S+\/\S+\/((\S+)\.ebuild)/
	},
	svn => {
		diff => "svn diff -N",
		status => "svn status",
		add => "svn add",
		skip => 4,
		regex => qr/^Index: (([^\/]*?)\.ebuild)\s*$/
	},
);

sub usage {
	(my $usage = <<"	EOF") =~ s/^\t//gm;
	Usage: echangelog [options] <changelog message>

	Options:
	    --help      err, this screen ...
	    --strict    abort on trivial/no changes
	    --version   show version info
	EOF
	print $usage;
	exit 0;
}

sub version {
	my $Revision = "Last svn change rev";
	my $Date = "Last svn change date";
	my $foo = "";
	print "echangelog\n$Revision$foo \n$Date$foo\n";
	exit 0;
}

sub getenv($) {
    my $key = shift;

    # Ensure our variable exist
    if ( defined($ENV{$key}) ) {
        # Ensure we don't get empty variables
        if ( length($ENV{$key}) > 0 ) {
            return $ENV{$key};
        }
    }
    return undef;
}

# Bug 264146.
# Copied from Text::Wrap.
# The only modified thing is:
# We trim _just_ tab/space etc. but not \n/\r.
# \s treats even \n/\r as whitespace.
# BUGS:
# ' test'
# ' test'
# Will end up in:
# ' test'
# ''
# 'test'
# See 'my $ps = ($ip eq $xp) ? "\n\n" : "\n";'
sub text_fill {
	my ($ip, $xp, @raw) = @_;
	my @para;
	my $pp;

	for $pp ( split(/\n\s+/, join("\n", @raw)) ) {
		$pp =~ s/[\x09|\x0B|\x0C|\x20]+/ /g;
		my $x = Text::Wrap::wrap($ip, $xp, $pp);
		push(@para, $x);
	}

	# if paragraph_indent is the same as line_indent,
	# separate paragraphs with blank lines
	my $ps = ($ip eq $xp) ? "\n\n" : "\n";
	return join ($ps, @para);
}

sub changelog_info(%) {
	my %changed = @_;

	open(INFO, '>', 'ChangeLog.new');

	print(INFO "\n");
	print(INFO "# Please enter the ChangeLog message for your changes. Lines starting\n");
	print(INFO "# with '#' will be ignored, and an empty message aborts the ChangeLog.\n");
	print(INFO "#\n# Changes:\n");

	foreach my $key (keys(%changed)) {
		if ($changed{$key} eq "+") {
			printf(INFO "# new file:\t%s\n", $key);
		}
		elsif ($changed{$key} eq "-") {
			printf(INFO "# deleted:\t%s\n", $key);
		}
		else {
			printf(INFO "# modified:\t%s\n", $key);
		}
	}

	close(INFO);
}

sub update_cat_pn {
	my $t = shift;
	my $cwd = getcwd();

	my $category = basename(dirname($cwd));
	my $package_name = basename($cwd);

	$t =~ s/^(# ChangeLog for).*/$1 $category\/$package_name/;

	return $t;
}

# Just to ensure we don't get duplicate entries.
sub mypush(\@@) {
	my $aref = shift;

	foreach my $value (@_) {
		push(@{$aref}, $value) if !grep(/^\Q$value\E$/, @{$aref});
	}
}

GetOptions(
	'help' => \$opt_help,
	'strict' => \$opt_strict,
	'version' => \$opt_version,
);

usage() if $opt_help;
version() if $opt_version;

# Figure out what kind of repo we are in.
# Respect $PATH while looking for the VCS
if (getenv("PATH")) {
	foreach my $path ( split(":", getenv("PATH")) ) {
		if ( -X "${path}/bzr" ) {
			open(BZR, '-|', "${path}/bzr root 2>/dev/null");
			$vcs = "bzr" if defined(<BZR>);
			close(BZR);
			last if $vcs;
		}
		if ( -X "${path}/cvs" ) {
			$vcs = "cvs" if -d "CVS";
			last if $vcs;
		}
		if ( -X "${path}/git" ) {
			open(GIT, '-|', "${path}/git rev-parse --git-dir 2>/dev/null");
			$vcs = "git" if defined(<GIT>);
			close(GIT);
			last if $vcs;
		}
		if ( -X "${path}/hg" ) {
			open(HG, '-|', "${path}/hg root 2>/dev/null");
			$vcs = "hg" if defined(<HG>);
			close(HG);
			last if $vcs;
		}
		if ( -X "${path}/svn" ) {
			$vcs = "svn" if -d ".svn";
			last if $vcs;
		}
	}
}

if ( ! $vcs ) {
	print STDERR "Either no CVS, .git, .svn, ... directories found, the specific VCS has not been\n";
	print STDERR "installed or you don't have execute rights!\n";
	exit(1);
}

# Read the current ChangeLog
if (-f 'ChangeLog') {
	open(I, '<', 'ChangeLog') or die "Can't open ChangeLog for input: $!\n";
	{ local $/ = undef; $text = <I>; }
	close(I);
} else {
	# No ChangeLog here, maybe we should make one...
	if (<*.ebuild>) {
		open(C, '-|', "portageq portdir") or die "portageq returned with an error: $!\n";
		my $portdir = <C>;
		$portdir =~ s/\s+$//;
		close(C);

		die "Can't find PORTDIR\n" if (length $portdir == 0);

		open(I, '<', "$portdir/skel.ChangeLog")
			or die "Can't open $portdir/skel.ChangeLog for input: $!\n";
		{ local $/ = undef; $text = <I>; }
		close(I);

		$text =~ s/^\*.*//ms; # don't need the fake entry

		$text = update_cat_pn($text);
	} else {
		die "This should be run in a directory with ebuilds...\n";
	}
}

# Figure out what has changed around here
open C, $vcs{$vcs}{status}.' 2>&1 |' or die "Can't run ".$vcs{$vcs}{status}.": $!\n";
while (<C>) {
	# I don't want mess our existing stuff with the horrible bazaar stuff.
	# TODO: add stuff for untracked/conflicting files.
	if ($vcs eq "bzr") {
		# NEW, DELETED, MODIFIED
		if (/^[\s\+\-]([NDM])\s+(.*)/) {
			my ($status, $filename) = ($1, $2);
			# strip category/package/ since everything is relative to the repo root.
			$filename =~ s/^([^\/]+\/){2}//;

			# skip empty $filename, e.g. if you add a new package, the first
			# line would be the package directory app-foo/bar/ but thats stripped above.
			next if !$filename;
			# skip directories
			next if -d $filename;

			($actions{$filename} = $status) =~ tr/NDM/+-/d;
			push(@files, $filename);
			next;
			}
		# RENAMED/MOVED
		elsif (/^R\s+(\S+) => (\S+)/) {
			my ($old, $new) = ($1, $2);
			$old =~ s/^([^\/]+\/){2}//;
			$new =~ s/^([^\/]+\/){2}//;

			next if !$old or !$new;
			next if -d $old or -d $new;

			$actions{$old} = '-';
			$actions{$new} = '+';

			push(@files, $old, $new);
			next;
		}
	}
	if (/^C\s+(\S+)/) {
		# TODO: The git part here might be unused
		if($vcs eq "git") {
			my $filename = $1;
			$filename =~ /\S*\/(\S*)/;

			next if -d $filename;

			push @conflicts, $filename;
			next;
		}

		push @conflicts, $1;
		next;
	}
	elsif (/^\?\s+(\S+)/) {
		push @unknown, $1;
		$actions{$1} = '?';
		next;
	}
	elsif (/^([ARMD])\s+\+?\s*(\S+)/) {
		my ($status, $filename) = ($1,$2);

		if($vcs eq "git") {
			open(P, '-|', "git rev-parse --sq --show-prefix");
			my $prefix = <P>;
			close(P);

			if (defined($prefix)) {
				chomp($prefix);

				if ($filename =~ /\Q$prefix\E(\S*)/) {
					$filename = $1 ;
				}
				else {
					next;
				}
			}
		}

		next if -d $filename;

		push(@files, $filename);
		($actions{$filename} = $status) =~ tr/DARM/-+-/d;
	}
}

sub git_unknown_objects {
	open(GIT, "-|", "${vcs} ls-files --exclude-standard --others");
	while(defined( my $line = <GIT> )) {
		chomp($line);

		# IMHO we can skip those files, even if they're untracked
		#next if $line =~ m/^\.gitignore$/;
		
		push(@unknown, $line);
	}
	close(GIT);
}

# git only shows files already added so we need to check for unknown files
# separately here.
if($vcs eq "git") {
	git_unknown_objects();
}

# Separate out the trivial files for now
@files = grep {
	!/files.digest|Manifest|ChangeLog/ or do { push @trivial, $_; 0; }
} @files;

@unknown = grep {
	!/files.digest|Manifest|ChangeLog/ or do { push @trivial, $_; 0; }
} @unknown;

# Don't allow any conflicts
if (@conflicts) {
	print STDERR <<EOT;
$vcs reports the following conflicts.  Please resolve them before
running echangelog.
EOT
	print STDERR map "C $_\n", @conflicts;
	exit 1;
}

# Don't allow unknown files (other than the trivial files that were separated
# out above)
if (@unknown) {
	print STDERR <<EOT;
$vcs reports the following unknown files.  Please use "$vcs add" before
running echangelog, or remove the files in question.
EOT
	print STDERR map "? $_\n", @unknown;
	exit 1;
}

# Sort the list of files as portage does.  None of the operations through
# the rest of the script should break this sort.
sub sortfunc($$) {
	my ($a, $b) = @_;
	(my $va = $a) =~ s/.*?-(\d.*?)(?:\.ebuild)?$/$1/;
	(my $vb = $b) =~ s/.*?-(\d.*?)(?:\.ebuild)?$/$1/;
	my ($na, $sa, $sna, $ra) = ($va =~ /^(.*?)(?:_(alpha|beta||pre|rc|p)(\d*))?(?:-r(\d+))?$/);
	my ($nb, $sb, $snb, $rb) = ($vb =~ /^(.*?)(?:_(alpha|beta||pre|rc|p)(\d*))?(?:-r(\d+))?$/);
	my (@na) = split /\.|(?<=\d)(?=[^\d\.])/, $na;
	my (@nb) = split /\.|(?<=\d)(?=[^\d\.])/, $nb;
	my $retval;

	#
	# compare version numbers first
	#
	for (my $i = 0; defined $na[$i] or defined $nb[$i]; $i++) {
		# def vs. undef
		return +1 if defined $na[$i] and !defined $nb[$i];
		return -1 if defined $nb[$i] and !defined $na[$i];

		# num vs. num
		if ($na[$i] =~ /^\d/ and $nb[$i] =~ /^\d/) {
			$retval = ($na[$i] <=> $nb[$i]);
			return $retval if $retval;
			next;
		}

		# char vs. char
		if ($na[$i] =~ /^\D/ and $nb[$i] =~ /^\D/) {
			$retval = ($na[$i] cmp $nb[$i]);
			return $retval if $retval;
			next;
		}

		# num vs. char
		$retval = ($na[$i] =~ /\d/ and -1 or +1);
		return $retval;
	}

	#
	# compare suffix second
	#
	if (defined $sa and !defined $sb) {
		return +2 if $sa eq "p";
		return -2;
	}
	if (defined $sb and !defined $sa) {
		return -3 if $sb eq "p";
		return +3;
	}

	if (defined $sa) { # and defined $sb
		$retval = ($sa cmp $sb);
		if ($retval) {
			return +4 if $sa eq "p";
			return -4 if $sb eq "p";
			return $retval; # suffixes happen to be alphabetical order, mostly
		}

		# compare suffix number
		return +5 if defined $sna and !defined $snb;
		return -5 if defined $snb and !defined $sna;

		if (defined $sna) {  # and defined $snb
			$retval = ($sna <=> $snb);
			return $retval if $retval;
		}
	}

	#
	# compare rev third
	#
	return +6 if defined $ra and !defined $rb;
	return -6 if defined $rb and !defined $ra;

	if (defined $ra) { # and defined $rb
		return ($ra <=> $rb);
	}

	#
	# nothing left to compare
	#
	return 0;
}

# Forget ebuilds that only have changed copyrights, unless that's all
# the changed files we have
@ebuilds = grep /\.ebuild$/, @files;
@files = grep !/\.ebuild$/, @files;

if (@ebuilds) {
	if ($vcs eq "git") {
		open C, $vcs{$vcs}{diff}." HEAD -- @ebuilds 2>&1 |" or die "Can't run: ".$vcs{$vcs}{diff}."$!\n";
	} else {
		open C, $vcs{$vcs}{diff}." @ebuilds 2>&1 |" or die "Can't run: ".$vcs{$vcs}{diff}."$!\n";
	}

	$_ = <C>;

	while (defined $_) {
		# only possible with cvs
		if (/^$vcs diff: (([^\/]*?)\.ebuild) was removed/) {
			mypush(@files, $1);
		}
		# We assume GNU diff output format here.
		# git format: diff --git a/app-doc/repodoc/metadata.xml b/app-doc/repodoc/metadata.xml
		elsif (/$vcs{$vcs}{regex}/) {
			my ($file, $version) = ($1, $2);

			if ($vcs eq "git") {
				while (<C>) {
					last if /^deleted file mode|^index/;
					if (/^new file mode/) {
						mypush(@files, $file);
						mypush(@new_versions, $version);
						last;
					}
				}
			}

			if ($vcs eq "bzr") {
				if (/^=== added file/) {
					mypush(@files, $file);
					mypush(@new_versions, $version);
					last;
				}
				elsif(/^=== renamed file '.+\/([^\/]+\.ebuild)' => '.+\/(([^\/]+)\.ebuild)'/) {
					mypush(@files, $1, $2);
					mypush(@new_versions, $3);
					last;
				}
			}

			# check if more than just copyright date changed.
			# skip some lines (vcs dependent)
			foreach(1..$vcs{$vcs}{skip}) {
				$_ = <C>;
			}

			while (<C>) {
				last if /^[A-Za-z]/;
				if (/^[-+](?!# Copyright)/) {
					mypush(@files, $file);
					last;
				}
			}

			# at this point we've either added $f to @files or not,
			# and we have the next line in $_ for processing
			next;
		}
		elsif (/^$vcs.*?: (([^\/]*?)\.ebuild) is a new entry/) {
			mypush(@files, $1);
			mypush(@new_versions, $2);
		}

		# other cvs output is ignored
		$_ = <C>;
	}
}
close C;

# Subversion diff doesn't identify new versions. So use the status command
if (($vcs eq "svn") and (@ebuilds)) {
	open C, $vcs{$vcs}{status}." @ebuilds 2>&1 |" or die "Can't run: ".$vcs{$vcs}{status}."$!\n";
	$_ = <C>;

	while (defined $_) {
		if (/^A\s+\+?\s*(([^\s]*)\.ebuild)/) {
			mypush(@files, $1);
			mypush(@new_versions, $2);
		}

		$_ = <C>;
	}
}

# When a package move occurs, the versions appear to be new even though they are
# not.  Trim them from @new_versions in that case.
@new_versions = grep { $text !~ /^\*\Q$_\E\s/m } @new_versions;

# Check if we have any files left, otherwise re-insert ebuild list
# (of course, both might be empty anyway)
@files = @ebuilds unless (@files);

# Allow ChangeLog entries with no changed files, but give a fat warning
unless (@files) {
	print STDERR "**\n";
	print STDERR "** NOTE: No non-trivial changed files found.  Normally echangelog\n";
	print STDERR "** should be run after all affected files have been added and/or\n";
	print STDERR "** modified.  Did you forget to $vcs add?\n";
	print STDERR "**\n";

	if ($opt_strict) {
		print STDERR "** In strict mode, exiting\n";
		exit 1;
	}

	@files = sort sortfunc @trivial;

	# last resort to put something in the list
	unless (@files) {
		@files = qw/ChangeLog/;
		$actions{'ChangeLog'} = "";
	}
}

# sort
@files = sort sortfunc @files;
@new_versions = sort sortfunc @new_versions;

# Get the input from the cmdline, editor or stdin
if ($ARGV[0]) {
	$input = "@ARGV";
} else {
	$editor = getenv('ECHANGELOG_EDITOR') ? getenv('ECHANGELOG_EDITOR') : getenv('EDITOR') || undef;

	if ($editor) {
		# Append some informations.
		changelog_info(%actions);

		system("$editor ChangeLog.new");

		if ($? != 0) {
			# This usually happens when the editor got forcefully killed; and
			# the terminal is probably messed up: so we reset things.
			system('stty sane');
			print STDERR "Editor died!  Reverting to stdin method.\n";
			undef $editor;
		} else {
			if (open I, "<ChangeLog.new") {
				local $/ = undef;
				$input = <I>;
				close(I);

				# Remove comments from changelog_info().
				local $/ = "\n";
				$input =~ s/^#.*//mg;
				local $/ = undef;
			} else {
				print STDERR "Error opening ChangeLog.new: $!\n";
				print STDERR "Reverting to stdin method.\n";
				undef $editor;
			}
		}
		unlink('ChangeLog.new') if -f 'ChangeLog.new';
	}

	unless ($editor) {
		print "Please type the log entry: use Ctrl-d to finish, Ctrl-c to abort...\n";
		local $/ = undef;
		$input = <>;
	}
}
die "Empty entry; aborting\n" unless $input =~ /\S/;

# If there are any long lines, then wrap the input at $columns chars
# (leaving 2 chars on left, one char on right, after adding indentation below).
$input = text_fill('  ', '  ', $input);

# Prepend the user info to the input
# Changes related to bug 213374;
# This sequence should be right:
# 1. GENTOO_COMMITTER_NAME && GENTOO_COMMITTER_EMAIL
# 2. GENTOO_AUTHOR_NAME && GENTOO_AUTHOR_EMAIL
# 3. ECHANGELOG_USER (fallback/obsolete?)
# 4. getpwuid()..
if ( getenv("GENTOO_COMMITTER_NAME") && getenv("GENTOO_COMMITTER_EMAIL") ) {
	$user = sprintf("%s <%s>", getenv("GENTOO_COMMITTER_NAME"), getenv("GENTOO_COMMITTER_EMAIL"));
}
elsif ( getenv("GENTOO_AUTHOR_NAME") && getenv("GENTOO_AUTHOR_EMAIL") ) {
	$user = sprintf("%s <%s>", getenv("GENTOO_AUTHOR_NAME"), getenv("GENTOO_AUTHOR_EMAIL"));
}
elsif ( getenv("ECHANGELOG_USER") ) {
	$user = getenv("ECHANGELOG_USER");
}
else {
	my ($fullname, $username) = (getpwuid($<))[6,0];
	$fullname =~ s/,.*//; # remove GECOS, bug 80011
	$user = sprintf('%s <%s@gentoo.org>', $fullname, $username);
}

# Make sure that we didn't get "root"
die "Please set ECHANGELOG_USER or run as non-root\n" if $user =~ /<root@/;

$date = strftime("%d %b %Y", gmtime);
$entry = "$date; $user ";
$entry .= join ', ', map "$actions{$_}$_", @files;
$entry .= ':';
$entry = Text::Wrap::fill('  ', '  ', $entry); # does not append a \n
$entry .= "\n$input";                          # append user input

# Each one of these regular expressions will eat the whitespace
# leading up to the next entry (except the two-space leader on the
# front of a dated entry), so it needs to be replaced with a
# double carriage-return.  This helps to normalize the spacing in
# the ChangeLogs.
if (@new_versions) {
	# Insert at the top with a new version marker
	$text =~ s/^( .*? )               # grab header
		\s*\n(?=\ \ \d|\*|\z)  # suck up trailing whitespace
		/"$1\n\n" .
		join("\n", map "*$_ ($date)", reverse @new_versions) .
		"\n\n$entry\n\n"/sxe
			or die "Failed to insert new entry (4)\n";
} else {
	# Changing an existing patch or ebuild, no new version marker
	# required
	$text =~ s/^( .*? )               # grab header
		\s*\n(?=\ \ \d|\*|\z)  # suck up trailing whitespace
		/$1\n\n$entry\n\n/sx
			or die "Failed to insert new entry (3)\n";
}

# New packages and/or ones that have moved around often have stale data here.
# But only do that in places where ebuilds are around (as echangelog can be
# used in profiles/ and such places).
if (grep(/\.ebuild$/, @files)) {
	$text = update_cat_pn($text);
}

sub update_copyright {
	my ($t) = @_;
	(my $year = $date) =~ s/.* //;

	$t =~ s/^# Copyright \d+(?= )/$&-$year/m or
	$t =~ s/^(# Copyright) \d+-(\d+)/$1 1999-$year/m;

	return $t;
}

# Update the copyright year in the ChangeLog
$text = update_copyright($text);

# Write the new ChangeLog
open O, '>ChangeLog.new' or die "Can't open ChangeLog.new for output: $!\n";
print O $text            or die "Can't write ChangeLog.new: $!\n";
close O                  or die "Can't close ChangeLog.new: $!\n";

# Update affected ebuild copyright dates.  There is no reason to update the
# copyright lines on ebuilds that haven't changed.  I verified this with an IP
# lawyer.
for my $e (grep /\.ebuild$/, @files) {
	if (-s $e) {
		my ($etext, $netext);

		open E, "<$e" or warn("Can't read $e to update copyright year\n"), next;
		{ local $/ = undef; $etext = <E>; }
		close E;

		# Attempt the substitution and compare
		$netext = update_copyright($etext);
		next if $netext eq $etext; # skip this file if no change.

		# Write the new ebuild
		open E, ">$e.new" or warn("Can't open $e.new\n"), next;
		print E $netext and
		close E or warn("Can't write $e.new\n"), next;

		# Move things around and show the diff
		system "diff -U 0 $e $e.new";
		rename "$e.new", $e or warn("Can't rename $e.new: $!\n");

		# git requires to re-add this file else it wouln't be included in the commit.
		if ($vcs eq "git")
		{
			system("$vcs{$vcs}{add} ${e}");
		}
	}
}

# Move things around and show the ChangeLog diff
system 'diff -Nu ChangeLog ChangeLog.new';
rename 'ChangeLog.new', 'ChangeLog' or die "Can't rename ChangeLog.new: $!\n";

# Okay, now we have a starter ChangeLog to work with.
# The text will be added just like with any other ChangeLog below.
# Add the new ChangeLog to vcs before continuing.
if ($vcs eq "cvs") {
	if (open F, "CVS/Entries") {
		system("cvs -f add ChangeLog") unless (scalar grep /^\/ChangeLog\//, <F>);
	}
} elsif ($vcs eq "svn") {
	if (open F, ".svn/entries") {
		system("svn add ChangeLog") unless (scalar grep /ChangeLog/, <F>);
	}
} else {
	system("$vcs{$vcs}{add} ChangeLog 2>&1 >> /dev/null");
}

# vim: set ts=4 sw=4 tw=0: