lib/PXElator/file.pm

package file;

use File::Slurp;
use autodie;
use Carp qw/carp confess/;
use File::Path qw//;
use Data::Dump qw/dump/;

my $debug = 1;

sub mkpath {
        my $file = shift;
        my $dir = $1 if $file =~ s{^.+/[^/]+}{};
        File::Path::mkpath $dir unless -e $dir;
}

sub append {
        my ( $file, $content ) = @_;

        if ( ! -e $file ) {
                mkpath $file;
                write_file $file, $content;
                my $size = -s $file;
                carp "## append created $size bytes in $file";
                return $size;
        }

        my $on_disk = read_file $file;

        my $relaxed_content = $content;
           $relaxed_content =~ s{\s+}{\\s+}gs;

        if ( $on_disk !~ m{$relaxed_content} ) {

#               $content =~ s{^[\n\r]+}{\n}s;
#               $content =~ s{[\n\r]*$}{\n}s;

                if ( $on_disk =~ s{([\s+]exit[\s\d]*)$}{\n$content\n$1}s ) {
#                       warn "# insert $file\n$on_disk";
                        write_file $file, $on_disk;
                } else {
#                       warn "# append $file\n$content\n";
                        open($fh, '>>', $file);
                        print $fh $content;
                        close($fh);
                }

                carp "## append to $file";
                return -s $file;
        }
}

sub change {
        my ( $file, $from, $to ) = @_;

        my $content = read_file $file;
        if ( $content =~ s{$from}{$to}s ) {
                write_file $file, $content;
                carp "## change $file $from => $to" if $debug;
                return 1;
        } elsif ( $content !~ m{$to}s ) {
                confess "can't find $from to change into $to in $file in ",dump( $content );
        }
}

sub replace {
        my ( $file, $content ) = @_;
        mkpath $file;
        write_file $file, $content;
}

sub copy_once {
        my ( $from, $to ) = @_;
        $to ||= $from;
        return if -e $to;
        mkpath $to;
        write_file $to, read_file $from;
#       warn "# copy_once $to ", -s $to, " bytes";
}

1;
1	package file;
2
3	use File::Slurp;
4	use autodie;
5	use Carp qw/carp confess/;
6	use File::Path qw//;
7	use Data::Dump qw/dump/;
8
9	my $debug = 1;
10
11	sub mkpath {
12	my $file = shift;
13	my $dir = $1 if $file =~ s{^.+/[^/]+}{};
14	File::Path::mkpath $dir unless -e $dir;
15	}
16
17	sub append {
18	my ( $file, $content ) = @_;
19
20	if ( ! -e $file ) {
21	mkpath $file;
22	write_file $file, $content;
23	my $size = -s $file;
24	carp "## append created $size bytes in $file";
25	return $size;
26	}
27
28	my $on_disk = read_file $file;
29
30	my $relaxed_content = $content;
31	$relaxed_content =~ s{\s+}{\\s+}gs;
32
33	if ( $on_disk !~ m{$relaxed_content} ) {
34
35	# $content =~ s{^[\n\r]+}{\n}s;
36	# $content =~ s{[\n\r]*$}{\n}s;
37
38	if ( $on_disk =~ s{([\s+]exit[\s\d]*)$}{\n$content\n$1}s ) {
39	# warn "# insert $file\n$on_disk";
40	write_file $file, $on_disk;
41	} else {
42	# warn "# append $file\n$content\n";
43	open($fh, '>>', $file);
44	print $fh $content;
45	close($fh);
46	}
47
48	carp "## append to $file";
49	return -s $file;
50	}
51	}
52
53	sub change {
54	my ( $file, $from, $to ) = @_;
55
56	my $content = read_file $file;
57	if ( $content =~ s{$from}{$to}s ) {
58	write_file $file, $content;
59	carp "## change $file $from => $to" if $debug;
60	return 1;
61	} elsif ( $content !~ m{$to}s ) {
62	confess "can't find $from to change into $to in $file in ",dump( $content );
63	}
64	}
65
66	sub replace {
67	my ( $file, $content ) = @_;
68	mkpath $file;
69	write_file $file, $content;
70	}
71
72	sub copy_once {
73	my ( $from, $to ) = @_;
74	$to \|\|= $from;
75	return if -e $to;
76	mkpath $to;
77	write_file $to, read_file $from;
78	# warn "# copy_once $to ", -s $to, " bytes";
79	}
80
81	1;