Commit 64f77f31 authored by Joe Perches's avatar Joe Perches Committed by Linus Torvalds

scripts/get_maintainer.pl: add ability to read from STDIN

Doesn't need or accept '-' as a trailing option to read stdin.  Doesn't
print usage() after bad options.  Adds --usage as command line equivalent
of --help
Suggested-by: default avatarBorislav Petkov <petkovbb@googlemail.com>
Signed-off-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f11e9a15
......@@ -126,7 +126,7 @@ if (!GetOptions(
'fe|file-emails!' => \$file_emails,
'f|file' => \$from_filename,
'v|version' => \$version,
'h|help' => \$help,
'h|help|usage' => \$help,
)) {
die "$P: invalid argument - use --help if necessary\n";
}
......@@ -141,9 +141,9 @@ if ($version != 0) {
exit 0;
}
if ($#ARGV < 0) {
usage();
die "$P: argument missing: patchfile or -f file please\n";
if (-t STDIN && !@ARGV) {
# We're talking to a terminal, but have no command line arguments.
die "$P: missing patchfile or -f file - use --help if necessary\n";
}
if ($output_separator ne ", ") {
......@@ -165,7 +165,6 @@ if ($sections) {
} else {
my $selections = $email + $scm + $status + $subsystem + $web;
if ($selections == 0) {
usage();
die "$P: Missing required option: email, scm, status, subsystem or web\n";
}
}
......@@ -173,7 +172,6 @@ if ($sections) {
if ($email &&
($email_maintainer + $email_list + $email_subscriber_list +
$email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
usage();
die "$P: Please select at least 1 email option\n";
}
......@@ -248,13 +246,19 @@ my @range = ();
my @keyword_tvi = ();
my @file_emails = ();
if (!@ARGV) {
push(@ARGV, "&STDIN");
}
foreach my $file (@ARGV) {
if ($file ne "&STDIN") {
##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 '${file}' not found\n";
}
}
if ($from_filename) {
push(@files, $file);
if (-f $file && ($keywords || $file_emails)) {
......
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