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From: Ian Jackson <ian.jackson@eu.citrix.com>
Date: Thu, 8 Mar 2018 19:03:07 +0000
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Subject: [Qemu-devel] [PATCH 12/12] scripts/get_maintainer.pl: Print proper
 error message for missing $file
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To: qemu-devel@nongnu.org
Cc: Ross Lagerwall <ross.lagerwall@citrix.com>, Anthony PERARD <anthony.perard@citrix.com>, Juergen Gross <jgross@suse.com>, Stefano Stabellini <sstabellini@kernel.org>, xen-devel@lists.xenproject.org, Ian Jackson <ian.jackson@eu.citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, Thomas Huth <thuth@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>

If you pass scripts/get_maintainer.pl the name of a FIFO or other
exciting object (/dev/stdin, for example), it would falsely print
"file not found".  Instead: stat the object rather than using -f so
that we do not mind if the object is not a file; and print the errno
value in the error message.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Thomas Huth <thuth@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Stefano Stabellini <sstabellini@kernel.org>
CC: Anthony PERARD <anthony.perard@citrix.com>
---
v6: New patch in this version of the series
---
 scripts/get_maintainer.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 07369aa..43fb5f5 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -381,8 +381,8 @@ foreach my $file (@ARGV) {
 	##if $file is a directory and it lacks a trailing slash, add one
 	if ((-d $file)) {
 	    $file =~ s@([^/])$@$1/@;
-	} elsif (!(-f $file)) {
-	    die "$P: file '${file}' not found\n";
+	} elsif (!(stat $file)) {
+	    die "$P: file '${file}' not found: $!\n";
 	}
     }
     if ($from_filename) {
-- 
2.1.4