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/bump-perl-version
188 Porting/mergelog-tool
198 my @mani_files = sort keys %{ExtUtils::Manifest::maniread('MANIFEST')};
199 my %mani_files = map { ($_ => 1) } @mani_files;
200 die "No entries found in MANIFEST; aborting\n" unless @mani_files;
202 if ($opts{c} or $opts{s}) {
209 usage('one of -c, -s or -u must be specifcied');
217 for my $file (@mani_files) {
218 next if grep $file =~ m{$_/}, @SKIP_DIRS;
219 if ($SKIP_FILES{$file}) {
220 warn "(skipping $file)\n";
223 open my $fh, '<', $file or die "Aborting: can't open $file: $!\n";
227 for my $map (@maps) {
228 my ($pat, $sub, $expected, $file_pat) = @$map;
230 next if defined $file_pat and $file !~ $file_pat;
231 next unless $_ =~ $pat;
232 my ($got, $replacement) = $sub->();
235 # only report unexpected
236 next unless defined $expected and $got ne $expected;
239 $newstr =~ s/$pat/$replacement/
240 or die "Internal error: substitution failed: [$pat]\n";
242 print "\n$file\n" unless $header;
244 printf "\n%5d: -%s +%s", $., $_, $newstr;
250 warn "(skipped $_/*)\n" for @SKIP_DIRS;
265 die "No such file in MANIFEST: '$file'\n" unless $mani_files{$file};
266 die "file already seen; '$file'\n" if exists $changes{$file};
269 elsif (/^\s+(\d+): -(.*)/) {
271 ($line, $old) = ($1,$2);
272 die "$.: old line without preceeding filename\n"
273 unless defined $file;
274 die "Dup line number: $line\n" if exists $changes{$file}{$line};
275 $changes{$file}{$line}[0] = $old;
277 elsif (/^\s+\+(.*)/) {
279 die "$.: replacement line seen without old line\n" unless $line;
280 $changes{$file}{$line}[1] = $new;
284 die "Unexpected line at ;line $.: $_\n";
288 # suck in file contents to memory, then update that in-memory copy
291 for my $file (sort keys %changes) {
292 open my $fh, '<', $file or die "open '$file': $!\n";
293 $contents{$file} = [ <$fh> ];
294 chomp @{$contents{$file}};
295 close $fh or die "close: '$file': $!\n";
297 my $entries = $changes{$file};
298 for my $line (keys %$entries) {
299 die "$file: no such line: $line\n"
300 unless defined $contents{$file}[$line-1];
301 if ($contents{$file}[$line-1] ne $entries->{$line}[0]) {
302 die "$file: line mismatch at line $line:\n"
303 . "File: [$contents{$file}[$line-1]]\n"
304 . "Config: [$entries->{$line}[0]]\n"
306 $contents{$file}[$line-1] = $entries->{$line}[1];
310 # check the temp files don't already exist
312 for my $file (sort keys %contents) {
313 my $nfile = "$file-new";
314 die "$nfile already exists in MANIFEST; aborting\n"
315 if $mani_files{$nfile};
318 # write out the new files
320 for my $file (sort keys %contents) {
321 my $nfile = "$file-new";
322 open my $fh, '>', $nfile or die "create '$nfile' failed: $!\n";
323 print $fh $_, "\n" for @{$contents{$file}};
324 close $fh or die "failed to close $nfile; aborting: $!\n";
326 my @stat = stat $file or die "Can't stat $file: $!\n";
328 die "stat $file fgailed to give a mode!\n" unless defined $mode;
329 chmod $mode & 0777, $nfile or die "chmod $nfile failed; aborting: $!\n";
334 for my $file (sort keys %contents) {
335 my $nfile = "$file-new";
336 warn "updating $file ...\n";
337 rename $nfile, $file or die "rename $nfile $file: $!\n";