scripts/get_maintainer.pl - Allow multiple files on command line

Improve handling of "by:" signoffs
Sorting and frequency checks are done by name/email, not
by "by:" tag.

Signed-off-by: Joe Perches <joe@perches.com>

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 0f3c0a5..60dc0c4 100755 (executable)
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -13,7 +13,7 @@
 use strict;
 
 my $P = $0;
-my $V = '0.14';
+my $V = '0.15';
 
 use Getopt::Long qw(:config no_auto_abbrev);
 
@@ -34,7 +34,7 @@ my $scm = 0;
 my $web = 0;
 my $subsystem = 0;
 my $status = 0;
-my $onefile = 0;
+my $from_filename = 0;
 my $version = 0;
 my $help = 0;
 
@@ -72,7 +72,7 @@ if (!GetOptions(
                'status!' => \$status,
                'scm!' => \$scm,
                'web!' => \$web,
-               'f|file' => \$onefile,
+               'f|file' => \$from_filename,
                'v|version' => \$version,
                'h|help' => \$help,
                )) {
@@ -90,8 +90,6 @@ if ($version != 0) {
     exit 0;
 }
 
-my $infile = $ARGV[0];
-
 if ($#ARGV < 0) {
     usage();
     die "$P: argument missing: patchfile or -f file please\n";
@@ -139,32 +137,35 @@ while (<MAINT>) {
 }
 close(MAINT);
 
-## use the filename on the command line or find the filenames in the patchfile
+## use the filenames on the command line or find the filenames in the patchfiles
 
 my @files = ();
 
-if ($onefile) {
-    if (!(-f $infile)) {
-       die "$P: file '${infile}' not found\n";
+foreach my $file (@ARGV) {
+    next if ((-d $file));
+    if (!(-f $file)) {
+       die "$P: file '${file}' not found\n";
     }
-    push(@files, $infile);
-} else {
-    open(PATCH, "<$infile") or die "$P: Can't open ${infile}\n";
-    while (<PATCH>) {
-       if (m/^\+\+\+\s+(\S+)/) {
-           my $file = $1;
-           $file =~ s@^[^/]*/@@;
-           $file =~ s@\n@@;
-           push(@files, $file);
+    if ($from_filename) {
+       push(@files, $file);
+    } else {
+       my $file_cnt = @files;
+       open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
+       while (<PATCH>) {
+           if (m/^\+\+\+\s+(\S+)/) {
+               my $filename = $1;
+               $filename =~ s@^[^/]*/@@;
+               $filename =~ s@\n@@;
+               push(@files, $filename);
+           }
        }
+       close(PATCH);
+       if ($file_cnt == @files) {
+           die "$P: file '${file}' doesn't appear to be a patch.  "
+               . "Add -f to options?\n";
+       }
+       @files = sort_and_uniq(@files);
     }
-    close(PATCH);
-    my $file_cnt = @files;
-    if ($file_cnt == 0) {
-       print STDERR "$P: file '${infile}' doesn't appear to be a patch.  "
-           . "Add -f to options?\n";
-    }
-    @files = sort_and_uniq(@files);
 }
 
 my @email_to = ();
@@ -208,7 +209,7 @@ foreach my $file (@files) {
        }
     }
 
-    if ($email_git) {
+    if ($email && $email_git) {
        recent_git_signoffs($file);
     }
 
@@ -240,30 +241,22 @@ if ($email) {
 }
 
 if ($scm) {
-    if (!$onefile) {
-       @scm = sort_and_uniq(@scm);
-    }
+    @scm = sort_and_uniq(@scm);
     output(@scm);
 }
 
 if ($status) {
-    if (!$onefile) {
-       @status = sort_and_uniq(@status);
-    }
+    @status = sort_and_uniq(@status);
     output(@status);
 }
 
 if ($subsystem) {
-    if (!$onefile) {
-       @subsystem = sort_and_uniq(@subsystem);
-    }
+    @subsystem = sort_and_uniq(@subsystem);
     output(@subsystem);
 }
 
 if ($web) {
-    if (!$onefile) {
-       @web = sort_and_uniq(@web);
-    }
+    @web = sort_and_uniq(@web);
     output(@web);
 }
 
@@ -445,10 +438,12 @@ sub recent_git_signoffs {
     }
 
     $cmd = "git log --since=${email_git_since} -- ${file}";
-    $cmd .= " | grep -P '^    [-A-Za-z]+by:.*\\\@'";
+    $cmd .= " | grep -Pi \"^[-_        a-z]+by:.*\\\@\"";
     if (!$email_git_penguin_chiefs) {
-       $cmd .= " | grep -E -v \"${penguin_chiefs}\"";
+       $cmd .= " | grep -Pv \"${penguin_chiefs}\"";
     }
+    $cmd .= " | cut -f2- -d\":\"";
+    $cmd .= " | sed -e \"s/^\\s+//g\"";
     $cmd .= " | sort | uniq -c | sort -rn";
 
     $output = `${cmd}`;
@@ -456,9 +451,9 @@ sub recent_git_signoffs {
 
     @lines = split("\n", $output);
     foreach my $line (@lines) {
-       if ($line =~ m/([0-9]+)\s+([-A-Za-z]+by:)\s+(.*)/) {
+       if ($line =~ m/([0-9]+)\s+(.*)/) {
            my $sign_offs = $1;
-           $line = $3;
+           $line = $2;
            $count++;
            if ($sign_offs < $email_git_min_signatures ||
                $count > $email_git_max_maintainers) {
@@ -467,17 +462,19 @@ sub recent_git_signoffs {
        } else {
            die("$P: Unexpected git output: ${line}\n");
        }
-       if ($line =~ m/(.*) <(.*)>/) {
+       if ($line =~ m/(.+)<(.+)>/) {
            my $git_name = $1;
            my $git_addr = $2;
            $git_name =~ tr/^\"//;
+           $git_name =~ tr/^\\s*//;
            $git_name =~ tr/\"$//;
+           $git_name =~ tr/\\s*$//;
            if ($email_usename) {
                push(@email_to, format_email($git_name, $git_addr));
            } else {
                push(@email_to, $git_addr);
            }
-       } elsif ($line =~ m/<(.*)>/) {
+       } elsif ($line =~ m/<(.+)>/) {
            my $git_addr = $1;
            push(@email_to, $git_addr);
        } else {