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|
package Module::BumpVersion;
use strict;
use warnings;
use utf8;
sub load {
my ($class, $name) = @_;
my $lines;
my $is_perl = sub {
return 1 if $name =~ m{ [.] (?i: pl | pm | t ) $ }x;
$lines = $class->read_file($name);
return 1 if @$lines && $lines->[0] =~ m{ ^ \#\! .* perl }ix;
return;
}->();
$lines ||= $class->read_file($name);
return unless $is_perl;
return unless $lines;
bless {lines => $lines, name => $name}, $class;
}
sub read_file {
my ($class, $name) = @_;
open my $fh, '<:raw', $name
or die "Cannot open '$name' for readding: $!";
my @ret = <$fh>;
close $fh;
return \@ret;
}
sub set_version {
my ($self, $new_version) = @_;
my $versions = $self->versions;
my @lines = @{$self->{lines}};
my $dirty;
for my $edits ( values %$versions ) {
for my $edit (@$edits) {
$lines[ $edit->{line} ] =
$edit->{pre} . $new_version . $edit->{post} . "\n";
$dirty++;
}
}
return unless $dirty;
open my $fh, '>:raw', $self->{name}
or die "Cannot open '$self->{name}' for writing: $!";
print {$fh} $_ for @lines;
close $fh;
}
sub find_version {
my $self = shift;
my ($version) = keys %{$self->versions};
return $version;
}
sub versions {
my $self = shift;
$self->{versions} ||= $self->_find_version_for_doc();
}
sub _find_version_for_doc {
my ( $self ) = @_;
my $name = $self->{name};
my $machine = $self->scanner();
my $state = $machine->{init};
my $lines = $self->{lines};
my $ver_found = {};
LINE:
for my $ln ( 0 .. @$lines - 1 ) {
my $line = $lines->[$ln];
next LINE if $line =~ /# No BumpVersion/;
# Bail out when we're in a state with no possible actions.
last LINE unless @$state;
STATE: {
for my $trans (@$state) {
if ( my @match = $line =~ $trans->{re} ) {
if ( $trans->{mark} ) {
my $ver = $2 . $3 . $4;
push @{ $ver_found->{ $ver } },
{
file => $name,
info => $self,
line => $ln,
pre => $1,
ver => $ver,
post => $5
};
}
if ( my $code = $trans->{exec} ) {
$code->( $machine, \@match, $line );
}
if ( my $goto = $trans->{goto} ) {
$state = $machine->{$goto};
redo STATE;
}
}
}
}
}
return $ver_found;
}
sub version_re_perl {
my $ver_re = shift;
return qr{ ^ ( .*? [\$\*] (?: \w+ (?: :: | ' ) )* VERSION \s* =
\D*? )
$ver_re
( .* ) $ }x;
}
sub version_re_pod {
my $ver_re = shift;
return qr{ ^ ( .*? (?i: version ) .*? ) $ver_re ( .* ) $ }x;
}
sub version_re_package {
my $ver_re = shift;
return qr{ ^ ( package \s+ \S+ \s+ ) $ver_re (.*) $ }x;
}
# State machine for Perl source
sub scanner{
# Perl::Version::REGEX
my $ver_re = qr/ ( (?i: Revision: \s+ ) | v | )
( \d+ (?: [.] \d+)* )
( (?: _ \d+ )? ) /x;
{
init => [
{
re => qr{ ^ = (?! cut ) }x,
goto => 'pod',
},
{
re => version_re_perl($ver_re),
mark => 1,
},
{
re => version_re_package($ver_re),
mark => 1,
},
],
# pod within perl
pod => [
{
re => qr{ ^ =head\d\s+VERSION\b }x,
goto => 'version',
},
{
re => qr{ ^ =cut }x,
goto => 'init',
},
],
# version section within pod
version => [
{
re => qr{ ^ = (?! head\d\s+VERSION\b ) }x,
goto => 'pod',
},
{
re => version_re_pod($ver_re),
mark => 1,
},
],
};
}
1;
|
