3 # bump-perl-version, DAPM 14 Jul 2009
5 # A utility to find, and optionally bump, references to the perl version
6 # number in various files within the perl source
8 # It's designed to work in two phases. First, when run with -s (scan),
9 # it searches all the files in MANIFEST looking for strings that appear to
10 # match the current perl version (or which it knows are *supposed* to
11 # contain the current version), and produces a list of them to stdout,
12 # along with a suggested edit. For example:
14 # $ Porting/bump-perl-version -s 5.10.0 5.10.1 > /tmp/scan
18 # 52: -archlib='/opt/perl/lib/5.10.0/i686-linux-64int'
19 # +archlib='/opt/perl/lib/5.10.1/i686-linux-64int'
22 # At this point there will be false positives. Edit the file to remove
23 # those changes you don't want made. Then in the second phase, feed that
24 # list in, and it will change those lines in the files:
26 # $ Porting/bump-perl-version -u < /tmp/scan
28 # (so line 52 of Porting/config.sh is now updated)
30 # This utility 'knows' about certain files and formats, and so can spot
31 # 'hidden' version numbers, like PERL_SUBVERSION=9.
33 # A third variant makes use of this knowledge to check that all the things
34 # it knows about are at the current version:
36 # $ Porting/bump-perl-version -c 5.10.0
38 # XXX this script hasn't been tested against a major version bump yet,
39 # eg 5.11.0 to 5.12.0; there may be things it missed - DAPM 14 Jul 09
41 # Note there are various files and directories that it skips; these are
42 # ones that are unlikely to contain anything needing bumping, but which
43 # will generate lots fo false positives (eg pod/*). These are listed on
44 # STDERR as they are skipped.
49 use ExtUtils::Manifest;
52 sub usage { die <<EOF }
60 -c check files and warn if any known string values (eg
61 PERL_SUBVERSION) don't match the specified version
63 -s scan files and produce list of possible change lines to stdout
65 -u read in the scan file from stdin, and change all the lines specified
67 C.C.C the current perl version, eg 5.10.0
68 N.N.N the new perl version, eg 5.10.1
72 getopts('csu', \%opts) or usage;
74 @ARGV == 0 or usage('no version version numbers should be speciied');
75 # fake to stop warnings when calculating $oldx etc
76 @ARGV = qw(99.99.99 99.99.99);
79 @ARGV == 1 or usage('required one version number');
83 @ARGV == 2 or usage('require two version numbers');
85 usage('only one of -c, -s and -u') if keys %opts > 1;
87 my ($oldx, $oldy, $oldz) = $ARGV[0] =~ /^(\d+)\.(\d+)\.(\d+)$/
88 or usage("bad version: $ARGV[0]");
89 my ($newx, $newy, $newz) = $ARGV[1] =~ /^(\d+)\.(\d+)\.(\d+)$/
90 or usage("bad version: $ARGV[1]");
92 my $old_decimal = sprintf "%d.%03d%03d", $oldx, $oldy, $oldz; # 5.011001
95 # 0 a regexp that matches strings that might contain versions;
96 # 1 a sub that returns two strings based on $1 etc values:
97 # * string containing captured values (for -c)
98 # * a string containing the replacement value
99 # 2 what we expect the sub to return as its first arg; undef implies
101 # 3 a regex restricting which files this applies to (undef is all files)
103 # Note that @maps entries are checks in order, and only the first to match
108 qr{^((?:api_)?version(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
109 sub { $2, "$1$newy$3" },
114 qr{^(subversion(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
115 sub { $2, "$1$newz$3" },
120 qr{^(api_subversion(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
121 sub { $2, "${1}0$3" },
126 qr{^(api_versionstring(?:=|\s+)'?) ([\d\.]+) ('?) (?!\.)}x,
127 sub { $2, "$1$newx.$newy.0$3" },
132 qr{(version\s+'?) (\d+) ('?\s+subversion\s+'?) (\d+) ('?) (?!\.)}x,
133 sub { "$2-$4", "$1$newy$3$newz$5" },
138 qr{\b (PERL_(?:API_)?VERSION(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
139 sub { $2, "$1$newy$3"},
143 qr{\b (PERL_SUBVERSION(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
144 sub { $2, "$1$newz$3"},
148 qr{\b (PERL_API_SUBVERSION(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
149 sub { $2, "${1}0$3"},
152 # these two formats are in README.vms
154 qr{\b perl-(\d+\^\.\d+\^\.\d+) \b}x,
155 sub { $1, "perl-$newx^.$newy^.$newz"},
159 qr{\b ($oldx _ $oldy _$oldz) \b}x,
160 sub { $1, ($newx . '_' . $newy . '_' . $newz)},
165 qr{ $oldx\.$oldy\.$oldz \b}x,
166 sub {"", "$newx.$newy.$newz"},
172 qr{ $old_decimal \b}x,
173 sub {"", sprintf "%d.%03d%03d", $newx, $newy, $newz },
180 # files and dirs that we likely don't want to change version numbers on.
182 my %SKIP_FILES = map { ($_ => 1) } qw(
185 Porting/how_to_write_a_perldelta.pod
186 Porting/release_managers_guide.pod
187 Porting/bump-perl-version
189 Porting/mergelog-tool
200 my @mani_files = sort keys %{ExtUtils::Manifest::maniread('MANIFEST')};
201 my %mani_files = map { ($_ => 1) } @mani_files;
202 die "No entries found in MANIFEST; aborting\n" unless @mani_files;
204 if ($opts{c} or $opts{s}) {
211 usage('one of -c, -s or -u must be specifcied');
219 for my $file (@mani_files) {
220 next if grep $file =~ m{$_/}, @SKIP_DIRS;
221 if ($SKIP_FILES{$file}) {
222 warn "(skipping $file)\n";
225 open my $fh, '<', $file or die "Aborting: can't open $file: $!\n";
229 for my $map (@maps) {
230 my ($pat, $sub, $expected, $file_pat) = @$map;
232 next if defined $file_pat and $file !~ $file_pat;
233 next unless $_ =~ $pat;
234 my ($got, $replacement) = $sub->();
237 # only report unexpected
238 next unless defined $expected and $got ne $expected;
241 $newstr =~ s/$pat/$replacement/
242 or die "Internal error: substitution failed: [$pat]\n";
244 print "\n$file\n" unless $header;
246 printf "\n%5d: -%s +%s", $., $_, $newstr;
252 warn "(skipped $_/*)\n" for @SKIP_DIRS;
267 die "No such file in MANIFEST: '$file'\n" unless $mani_files{$file};
268 die "file already seen; '$file'\n" if exists $changes{$file};
271 elsif (/^\s+(\d+): -(.*)/) {
273 ($line, $old) = ($1,$2);
274 die "$.: old line without preceeding filename\n"
275 unless defined $file;
276 die "Dup line number: $line\n" if exists $changes{$file}{$line};
277 $changes{$file}{$line}[0] = $old;
279 elsif (/^\s+\+(.*)/) {
281 die "$.: replacement line seen without old line\n" unless $line;
282 $changes{$file}{$line}[1] = $new;
286 die "Unexpected line at ;line $.: $_\n";
290 # suck in file contents to memory, then update that in-memory copy
293 for my $file (sort keys %changes) {
294 open my $fh, '<', $file or die "open '$file': $!\n";
295 $contents{$file} = [ <$fh> ];
296 chomp @{$contents{$file}};
297 close $fh or die "close: '$file': $!\n";
299 my $entries = $changes{$file};
300 for my $line (keys %$entries) {
301 die "$file: no such line: $line\n"
302 unless defined $contents{$file}[$line-1];
303 if ($contents{$file}[$line-1] ne $entries->{$line}[0]) {
304 die "$file: line mismatch at line $line:\n"
305 . "File: [$contents{$file}[$line-1]]\n"
306 . "Config: [$entries->{$line}[0]]\n"
308 $contents{$file}[$line-1] = $entries->{$line}[1];
312 # check the temp files don't already exist
314 for my $file (sort keys %contents) {
315 my $nfile = "$file-new";
316 die "$nfile already exists in MANIFEST; aborting\n"
317 if $mani_files{$nfile};
320 # write out the new files
322 for my $file (sort keys %contents) {
323 my $nfile = "$file-new";
324 open my $fh, '>', $nfile or die "create '$nfile' failed: $!\n";
325 print $fh $_, "\n" for @{$contents{$file}};
326 close $fh or die "failed to close $nfile; aborting: $!\n";
328 my @stat = stat $file or die "Can't stat $file: $!\n";
330 die "stat $file fgailed to give a mode!\n" unless defined $mode;
331 chmod $mode & 0777, $nfile or die "chmod $nfile failed; aborting: $!\n";
336 for my $file (sort keys %contents) {
337 my $nfile = "$file-new";
338 warn "updating $file ...\n";
339 rename $nfile, $file or die "rename $nfile $file: $!\n";