package File::ShareDir::Install; # git description: v0.12-6-g29a6ff7
# ABSTRACT: Install shared files
use strict;
use warnings;
use Carp ();
use File::Spec;
use IO::Dir;
our $VERSION = '0.13';
our @DIRS;
our %ALREADY;
require Exporter;
our @ISA = qw( Exporter );
our @EXPORT = qw( install_share delete_share );
our @EXPORT_OK = qw( postamble install_share delete_share );
our $INCLUDE_DOTFILES = 0;
our $INCLUDE_DOTDIRS = 0;
#####################################################################
sub install_share
{
my $dir = @_ ? pop : 'share';
my $type = @_ ? shift : 'dist';
unless ( defined $type and
( $type =~ /^(module|dist)$/ ) ) {
Carp::confess "Illegal or invalid share dir type '$type'";
}
if( $type eq 'dist' and @_ ) {
Carp::confess "Too many parameters to install_share";
}
my $def = _mk_def( $type );
_add_module( $def, $_[0] );
_add_dir( $def, $dir );
}
#####################################################################
sub delete_share
{
my $dir = @_ ? pop : '';
my $type = @_ ? shift : 'dist';
unless ( defined $type and
( $type =~ /^(module|dist)$/ ) ) {
Carp::confess "Illegal or invalid share dir type '$type'";
}
if( $type eq 'dist' and @_ ) {
Carp::confess "Too many parameters to delete_share";
}
my $def = _mk_def( "delete-$type" );
_add_module( $def, $_[0] );
_add_dir( $def, $dir );
}
#
# Build a task definition
sub _mk_def
{
my( $type ) = @_;
return { type=>$type,
dotfiles => $INCLUDE_DOTFILES,
dotdirs => $INCLUDE_DOTDIRS
};
}
#
# Add the module to a task definition
sub _add_module
{
my( $def, $class ) = @_;
if( $def->{type} =~ /module$/ ) {
my $module = _CLASS( $class );
unless ( defined $module ) {
Carp::confess "Missing or invalid module name '$_[0]'";
}
$def->{module} = $module;
}
}
#
# Add directories to a task definition
# Save the definition
sub _add_dir
{
my( $def, $dir ) = @_;
$dir = [ $dir ] unless ref $dir;
my $del = 0;
$del = 1 if $def->{type} =~ /^delete-/;
foreach my $d ( @$dir ) {
unless ( $del or (defined $d and -d $d) ) {
Carp::confess "Illegal or missing directory '$d'";
}
if( not $del and $ALREADY{ $d }++ ) {
Carp::confess "Directory '$d' is already being installed";
}
push @DIRS, { %$def };
$DIRS[-1]{dir} = $d;
}
}
#####################################################################
# Build the postamble section
sub postamble
{
my $self = shift;
my @ret; # = $self->SUPER::postamble( @_ );
foreach my $def ( @DIRS ) {
push @ret, __postamble_share_dir( $self, $def );
}
return join "\n", @ret;
}
#####################################################################
sub __postamble_share_dir
{
my( $self, $def ) = @_;
my $dir = $def->{dir};
my( $idir );
if( $def->{type} eq 'delete-dist' ) {
$idir = File::Spec->catdir( _dist_dir(), $dir );
}
elsif( $def->{type} eq 'delete-module' ) {
$idir = File::Spec->catdir( _module_dir( $def ), $dir );
}
elsif ( $def->{type} eq 'dist' ) {
$idir = _dist_dir();
}
else { # delete-share and share
$idir = _module_dir( $def );
}
my @cmds;
if( $def->{type} =~ /^delete-/ ) {
@cmds = "\$(RM_RF) $idir";
}
else {
my $autodir = '$(INST_LIB)';
my $pm_to_blib = $self->oneliner(<<CODE, ['-MExtUtils::Install']);
pm_to_blib({\@ARGV}, '$autodir')
CODE
my $files = {};
_scan_share_dir( $files, $idir, $dir, $def );
@cmds = $self->split_command( $pm_to_blib,
map { ($self->quote_literal($_) => $self->quote_literal($files->{$_})) } sort keys %$files );
}
my $r = join '', map { "\t\$(NOECHO) $_\n" } @cmds;
# use Data::Dumper;
# die Dumper $files;
# Set up the install
return "config::\n$r";
}
# Get the per-dist install directory.
# We depend on the Makefile for most of the info
sub _dist_dir
{
return File::Spec->catdir( '$(INST_LIB)',
qw( auto share dist ),
'$(DISTNAME)'
);
}
# Get the per-module install directory
# We depend on the Makefile for most of the info
sub _module_dir
{
my( $def ) = @_;
my $module = $def->{module};
$module =~ s/::/-/g;
return File::Spec->catdir( '$(INST_LIB)',
qw( auto share module ),
$module
);
}
sub _scan_share_dir
{
my( $files, $idir, $dir, $def ) = @_;
my $dh = IO::Dir->new( $dir ) or die "Unable to read $dir: $!";
my $entry;
while( defined( $entry = $dh->read ) ) {
next if $entry =~ /(~|,v|#)$/;
my $full = File::Spec->catfile( $dir, $entry );
if( -f $full ) {
next if not $def->{dotfiles} and $entry =~ /^\./;
$files->{ $full } = File::Spec->catfile( $idir, $entry );
}
elsif( -d $full ) {
if( $def->{dotdirs} ) {
next if $entry eq '.' or $entry eq '..' or
$entry =~ /^\.(svn|git|cvs)$/;
}
else {
next if $entry =~ /^\./;
}
_scan_share_dir( $files, File::Spec->catdir( $idir, $entry ), $full, $def );
}
}
}
#####################################################################
# Cloned from Params::Util::_CLASS
sub _CLASS ($) {
(
defined $_[0]
and
! ref $_[0]
and
$_[0] =~ m/^[^\W\d]\w*(?:::\w+)*$/s
) ? $_[0] : undef;
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
File::ShareDir::Install - Install shared files
=head1 VERSION
version 0.13
=head1 SYNOPSIS
use ExtUtils::MakeMaker;
use File::ShareDir::Install;
install_share 'share';
install_share dist => 'dist-share';
install_share module => 'My::Module' => 'other-share';
WriteMakefile( ... ); # As you normally would
package MY;
use File::ShareDir::Install qw(postamble);
=head1 DESCRIPTION
File::ShareDir::Install allows you to install read-only data files from a
distribution. It is a companion module to L<File::ShareDir>, which
allows you to locate these files after installation.
It is a port of L<Module::Install::Share> to L<ExtUtils::MakeMaker> with the
improvement of only installing the files you want; C<.svn>, C<.git> and other
source-control junk will be ignored.
Please note that this module installs read-only data files; empty
directories will be ignored.
=head1 EXPORT
=head2 install_share
install_share $dir;
install_share dist => $dir;
install_share module => $module, $dir;
Causes all the files in C<$dir> and its sub-directories to be installed
into a per-dist or per-module share directory. Must be called before
L<WriteMakefile>.
The first 2 forms are equivalent; the files are installed in a per-distribution
directory. For example C</usr/lib/perl5/site_perl/auto/share/dist/My-Dist>. The
name of that directory can be recovered with L<File::ShareDir/dist_dir>.
The last form installs files in a per-module directory. For example
C</usr/lib/perl5/site_perl/auto/share/module/My-Dist-Package>. The name of that
directory can be recovered with L<File::ShareDir/module_dir>.
The parameter C<$dir> may be an array of directories.
The files will be installed when you run C<make install>. However, the list
of files to install is generated when Makefile.PL is run.
Note that if you make multiple calls to C<install_share> on different
directories that contain the same filenames, the last of these calls takes
precedence. In other words, if you do:
install_share 'share1';
install_share 'share2';
And both C<share1> and C<share2> contain a file called C<info.txt>, the file
C<share2/info.txt> will be installed into your C<dist_dir()>.
=head2 delete_share
delete_share $list;
delete_share dist => $list;
delete_share module => $module, $list;
Remove previously installed files or directories.
Unlike L</install_share>, the last parameter is a list of files or
directories that were previously installed. These files and directories will
be deleted when you run C<make install>.
The parameter C<$list> may be an array of files or directories.
Deletion happens in-order along with installation. This means that you may
delete all previously installed files by putting the following at the top of
your Makefile.PL.
delete_share '.';
You can also selectively remove some files from installation.
install_share 'some-dir';
if( ... ) {
delete_share 'not-this-file.rc';
}
=head2 postamble
This function must be exported into the MY package. You will normally do this
with the following.
package MY;
use File::ShareDir::Install qw( postamble );
If you need to overload postamble, use the following.
package MY;
use File::ShareDir::Install;
sub postamble {
my $self = shift;
my @ret = File::ShareDir::Install::postamble( $self );
# ... add more things to @ret;
return join "\n", @ret;
}
=head1 CONFIGURATION
Two variables control the handling of dot-files and dot-directories.
A dot-file has a filename that starts with a period (.). For example
C<.htaccess>. A dot-directory is a directory that starts with a
period (.). For example C<.config/>. Not all filesystems support the use
of dot-files.
=head2 $INCLUDE_DOTFILES
If set to a true value, dot-files will be copied. Default is false.
=head2 $INCLUDE_DOTDIRS
If set to a true value, the files inside dot-directories will be copied.
Known version control directories are still ignored. Default is false.
=head2 Note
These variables only influence subsequent calls to C<install_share()>. This allows
you to control the behaviour for each directory.
For example:
$INCLUDE_DOTDIRS = 1;
install_share 'share1';
$INCLUDE_DOTFILES = 1;
$INCLUDE_DOTDIRS = 0;
install_share 'share2';
The directory C<share1> will have files in its dot-directories installed,
but not dot-files. The directory C<share2> will have files in its dot-files
installed, but dot-directories will be ignored.
=head1 SEE ALSO
L<File::ShareDir>, L<Module::Install>.
=head1 SUPPORT
Bugs may be submitted through L<the RT bug tracker|https://rt.cpan.org/Public/Dist/Display.html?Name=File-ShareDir-Install>
(or L<bug-File-ShareDir-Install@rt.cpan.org|mailto:bug-File-ShareDir-Install@rt.cpan.org>).
=head1 AUTHOR
Philip Gwyn <gwyn@cpan.org>
=head1 CONTRIBUTORS
=for stopwords Karen Etheridge Shoichi Kaji
=over 4
=item *
Karen Etheridge <ether@cpan.org>
=item *
Shoichi Kaji <skaji@cpan.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2009 by Philip Gwyn.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut