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|
#!perl -w
use strict;
require 'regen/regen_lib.pl';
require 'Porting/pod_lib.pl';
use vars qw($TAP $Verbose);
# For processing later
my @ext;
# Lookup hash of all directories in lib/ in a clean distribution
my %libdirs;
open my $fh, '<', 'MANIFEST'
or die "Can't open MANIFEST: $!";
while (<$fh>) {
if (m<^((?:cpan|dist|ext)/[^/]+/ # In an extension directory
(?!t/|private/|corpus/|demo/|testdir/) # but not a test or similar
\S+ # filename characters
(?:\.pm|\.pod|_pm\.PL|_pod\.PL|\.yml)) # useful ending
(?:\s|$) # whitespace or end of line
>x) {
push @ext, $1;
} elsif (m!^lib/([^ \t\n]+)/[^/ \t\n]+!) {
# All we are interested in are shipped directories in lib/
# leafnames (and package names) are actually irrelevant.
my $dirs = $1;
do {
# lib/Pod/t is in MANIFEST, but lib/Pod is not. Rather than
# special-casing this, generalise the code to ensure that all
# parent directories of anything add are also added:
++$libdirs{$dirs}
} while ($dirs =~ s!/.*!!);
}
}
close $fh
or die "Can't close MANIFEST: $!";
# Lines we need in lib/.gitignore
my %ignore;
# Directories that the Makfiles should remove
# With a special case already :-(
my %rmdir_s = my %rmdir = ('Unicode/Collate/Locale' => 1);
FILE:
foreach my $file (@ext) {
my ($extname, $path) = $file =~ m!^(?:cpan|dist|ext)/([^/]+)/(.*)!
or die "Can't parse '$file'";
if ($path =~ /\.yml$/) {
next unless $path =~ s!^lib/!!;
} elsif ($path =~ /\.pod$/) {
unless ($path =~ s!^lib/!!) {
# ExtUtils::MakeMaker will install it to a path based on the
# extension name:
if ($extname =~ s!-[^-]+$!!) {
$extname =~ tr!-!/!;
$path = "$extname/$path";
}
}
} elsif ($extname eq 'Unicode-Collate' # Trust the package lines
|| $extname eq 'Encode' # Trust the package lines
|| $path eq 'win32/Win32.pm' # Trust the package line
|| ($path !~ tr!/!! # No path
&& $path ne 'DB_File.pm' # ... but has multiple package lines
)) {
# Too many special cases to encode, so just open the file and figure it
# out:
my $package;
open my $fh, '<', $file
or die "Can't open $file: $!";
while (<$fh>) {
if (/^\s*package\s+([A-Za-z0-9_:]+)/) {
$package = $1;
last;
}
}
close $fh
or die "Can't close $file: $!";
die "Can't locate package statement in $file"
unless defined $package;
$package =~ s!::!/!g;
$path = "$package.pm";
} else {
if ($path =~ s/\.PL$//) {
# .PL files generate other files. By convention the output filename
# has the .PL stripped, and any preceding _ changed to ., to comply
# with historical VMS filename rules that only permit one .
$path =~ s!_([^_/]+)$!.$1!;
}
$path =~ s!^lib/!!;
}
my @parts = split '/', $path;
my $prefix = shift @parts;
while (@parts) {
if (!$libdirs{$prefix}) {
# It is a directory that we will create. Ignore everything in it:
++$ignore{"/$prefix/"};
++$rmdir{$prefix};
++$rmdir_s{$prefix};
pop @parts;
while (@parts) {
$prefix .= '/' . shift @parts;
++$rmdir{$prefix};
}
next FILE;
}
$prefix .= '/' . shift @parts;
# If we've just shifted the leafname back onto $prefix, then @parts is
# empty, so we should terminate this loop.
}
# We are creating a file in an existing directory. We must ignore the file
# explicitly:
++$ignore{"/$path"};
}
sub edit_makefile_SH {
my ($desc, $contents) = @_;
my $start_re = qr/(\trm -f so_locations[^\n]+)/;
my ($start) = $contents =~ $start_re;
$contents = verify_contiguous($desc, $contents,
qr/$start_re\n(?:\t-rmdir [^\n]+\n)+/sm,
'lib directory rmdir rules');
# Reverse sort ensures that any subdirectories are deleted first.
# The extensions themselves delete files with the MakeMaker generated clean
# targets.
$contents =~ s{\0}
{"$start\n"
. wrap(79, "\t-rmdir ", "\t-rmdir ",
map {"lib/$_"} reverse sort keys %rmdir)
. "\n"}e;
$contents;
}
sub edit_win32_makefile {
my ($desc, $contents) = @_;
my $start = "\t-del /f *.def *.map";
my $start_re = quotemeta($start);
$contents = verify_contiguous($desc, $contents,
qr!$start_re\n(?:\t-if exist (\$\(LIBDIR\)\\\S+) rmdir /s /q \1\n)+!sm,
'Win32 lib directory rmdir rules');
# Win32 is (currently) using rmdir /s /q which deletes recursively
# (seems to be analogous to rm -r) so we don't explicitly list
# subdirectories to delete, and don't need to ensure that subdirectories are
# deleted before their parents.
# Might be able to rely on MakeMaker generated clean targets to clean
# everything, but not in a position to test this.
my $lines = join '', map {
tr!/!\\!;
"\t-if exist \$(LIBDIR)\\$_ rmdir /s /q \$(LIBDIR)\\$_\n"
} sort {lc $a cmp lc $b} keys %rmdir_s;
$contents =~ s/\0/$start\n$lines/;
$contents;
}
process('Makefile.SH', 'Makefile.SH', \&edit_makefile_SH, $TAP && '', $Verbose);
foreach ('win32/Makefile', 'win32/makefile.mk') {
process($_, $_, \&edit_win32_makefile, $TAP && '', $Verbose);
}
# This must come last as it can exit early:
if ($TAP && !-d '.git' && !-f 'lib/.gitignore') {
print "ok # skip not being run from a git checkout, hence no lib/.gitignore\n";
exit 0;
}
$fh = open_new('lib/.gitignore', '>',
{ by => $0,
from => 'MANIFEST and parsing files in cpan/ dist/ and ext/'});
print $fh <<"EOT";
# If this generated file has problems, it may be simpler to add more special
# cases to the top level .gitignore than to code one-off logic into the
# generation script $0
EOT
print $fh "$_\n" foreach sort keys %ignore;
read_only_bottom_close_and_rename($fh);
|
