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From 7671d101baa75d7a79bfbd8c75c1595fbb3f53ba Mon Sep 17 00:00:00 2001
From: Russ Allbery <rra@cpan.org>
Date: Sat, 7 Feb 2015 19:03:34 -0800
Subject: Better errors for man pages from standard input
[Pod::Man] Attempt to detect if the input came from a pipe and
therefore has a completely unhelpful (and nonreproducible) source file
name, and diagnose this as an error. Document that the name option
(--name to pod2man) is required when processing POD source from
standard input. (Debian Bug#777405)
(backported to Perl 5.20.2 by Niko Tyni <ntyni@debian.org>)
Origin: upstream, http://git.eyrie.org/?p=perl/podlators.git;a=commitdiff;h=d98872e46c93861b7aba14949e1258712087dc55
Bug-Debian: https://bugs.debian.org/777405
Patch-Name: fixes/podman-pipe.diff
Upstream-Status: Pending
---
cpan/podlators/lib/Pod/Man.pm | 15 +++++++++++++++
cpan/podlators/scripts/pod2man.PL | 4 ++++
cpan/podlators/t/devise-title.t | 32 ++++++++++++++++++++++++++++++++
3 files changed, 51 insertions(+)
create mode 100755 cpan/podlators/t/devise-title.t
diff --git a/cpan/podlators/lib/Pod/Man.pm b/cpan/podlators/lib/Pod/Man.pm
index 8997a15..969eaff 100644
--- a/cpan/podlators/lib/Pod/Man.pm
+++ b/cpan/podlators/lib/Pod/Man.pm
@@ -828,6 +828,17 @@ sub devise_title {
$section = 3 if (!$$self{section} && $name =~ /\.pm\z/i);
$name =~ s/\.p(od|[lm])\z//i;
+ # If Pod::Parser gave us an IO::File reference as the source file name,
+ # convert that to the empty string as well. Then, if we don't have a
+ # valid name, emit a warning and convert it to STDIN.
+ if ($name =~ /^IO::File(?:=\w+)\(0x[\da-f]+\)$/i) {
+ $name = '';
+ }
+ if ($name eq '') {
+ $self->whine (1, 'No name given for document');
+ $name = 'STDIN';
+ }
+
# If the section isn't 3, then the name defaults to just the basename of
# the file. Otherwise, assume we're dealing with a module. We want to
# figure out the full module name from the path to the file, but we don't
@@ -1705,6 +1716,10 @@ module path. If it is, a path like C<.../lib/Pod/Man.pm> is converted into
a name like C<Pod::Man>. This option, if given, overrides any automatic
determination of the name.
+If generating a manual page from standard input, this option is required,
+since there's otherwise no way for Pod::Man to know what to use for the
+manual page name.
+
=item nourls
Normally, LZ<><> formatting codes with a URL but anchor text are formatted
diff --git a/cpan/podlators/scripts/pod2man.PL b/cpan/podlators/scripts/pod2man.PL
index 38695f8..43e35df 100644
--- a/cpan/podlators/scripts/pod2man.PL
+++ b/cpan/podlators/scripts/pod2man.PL
@@ -236,6 +236,10 @@ Note that this option is probably not useful when converting multiple POD
files at once. The convention for Unix man pages for commands is for the
man page title to be in all-uppercase even if the command isn't.
+When converting POD source from standard input, this option is required,
+since there's otherwise no way to know what to use as the name of the
+manual page.
+
=item B<--nourls>
Normally, LZ<><> formatting codes with a URL but anchor text are formatted
diff --git a/cpan/podlators/t/devise-title.t b/cpan/podlators/t/devise-title.t
new file mode 100755
index 0000000..8639441
--- /dev/null
+++ b/cpan/podlators/t/devise-title.t
@@ -0,0 +1,32 @@
+#!/usr/bin/perl
+#
+# Tests for the automatic determination of the manual page title if not
+# specified via options to pod2man or the Pod::Man constructor.
+
+use 5.006;
+use strict;
+use warnings;
+
+use File::Spec;
+use IO::File;
+use Test::More tests => 3;
+
+BEGIN {
+ use_ok('Pod::Man');
+}
+
+# Create a parser and set it up with an input source. There isn't a way to do
+# this in Pod::Simple without actually parsing the document, so send the
+# output to a string that we'll ignore.
+my $path = File::Spec->catdir('t', 'data', 'basic.pod');
+my $handle = IO::File->new($path, 'r');
+my $parser = Pod::Man->new(errors => 'pod');
+my $output;
+$parser->output_string(\$output);
+$parser->parse_file($handle);
+
+# Check the results of devise_title for this. We should get back STDIN, and
+# we should have reported an error.
+my ($name, $section) = $parser->devise_title;
+is($name, 'STDIN', 'devise_title uses STDIN for file handle input');
+ok($parser->errors_seen, '...and errors were seen');
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