get_maintainer: add email addresses from .yaml files

.yaml files can contain maintainer/author addresses and it seems unlikely
or unnecessary that individual MAINTAINER file section entries for each
.yaml file will be created.

So add the email addresses found in .yaml files to the default
get_maintainer output.

The email addresses are marked with "(in file)" when using the "--roles"
or "--rolestats" options.

Miscellanea:

o Change $file_emails to $email_file_emails to avoid visual
  naming conflicts with @file_emails

Signed-off-by: Joe Perches <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Tested-by: Sam Ravnborg <[email protected]>
Acked-by: Sam Ravnborg <[email protected]>
Link: http://lkml.kernel.org/r/e85006456d9dbae55286c67ac5263668a72f5b58.1588022228.git.joe@perches.com
Signed-off-by: Linus Torvalds <[email protected]>

scripts/get_maintainer.pl

@@ -57,7 +57,7 @@
 my $letters = "";
 my $keywords = 1;
 my $sections = 0;
-my $file_emails = 0;
+my $email_file_emails = 0;
 my $from_filename = 0;
 my $pattern_depth = 0;
 my $self_test = undef;
@@ -69,6 +69,12 @@
 
 my $exit = 0;
 
+my @files = ();
+my @fixes = ();			# If a patch description includes Fixes: lines
+my @range = ();
+my @keyword_tvi = ();
+my @file_emails = ();
+
 my %commit_author_hash;
 my %commit_signer_hash;
 
@@ -266,7 +272,7 @@
 		'pattern-depth=i' => \$pattern_depth,
 		'k|keywords!' => \$keywords,
 		'sections!' => \$sections,
-		'fe|file-emails!' => \$file_emails,
+		'fe|file-emails!' => \$email_file_emails,
 		'f|file' => \$from_filename,
 		'find-maintainer-files' => \$find_maintainer_files,
 		'mpath|maintainer-path=s' => \$maintainer_path,
@@ -424,6 +430,22 @@ sub read_all_maintainer_files {
     }
 }
 
+sub maintainers_in_file {
+    my ($file) = @_;
+
+    return if ($file =~ m@\bMAINTAINERS$@);
+
+    if (-f $file && ($email_file_emails || $file =~ /\.yaml$/)) {
+	open(my $f, '<', $file)
+	    or die "$P: Can't open $file: $!\n";
+	my $text = do { local($/) ; <$f> };
+	close($f);
+
+	my @poss_addr = $text =~ m$[A-Za-zÀ-ÿ\"\' \,\.\+-]*\s*[\,]*\s*[\(\<\{]{0,1}[A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+\.[A-Za-z0-9]+[\)\>\}]{0,1}$g;
+	push(@file_emails, clean_file_emails(@poss_addr));
+    }
+}
+
 #
 # Read mail address map
 #
@@ -504,12 +526,6 @@ sub read_mailmap {
 
 ## use the filenames on the command line or find the filenames in the patchfiles
 
-my @files = ();
-my @fixes = ();			# If a patch description includes Fixes: lines
-my @range = ();
-my @keyword_tvi = ();
-my @file_emails = ();
-
 if (!@ARGV) {
     push(@ARGV, "&STDIN");
 }
@@ -527,7 +543,7 @@ sub read_mailmap {
 	$file =~ s/^\Q${cur_path}\E//;	#strip any absolute path
 	$file =~ s/^\Q${lk_path}\E//;	#or the path to the lk tree
 	push(@files, $file);
-	if ($file ne "MAINTAINERS" && -f $file && ($keywords || $file_emails)) {
+	if ($file ne "MAINTAINERS" && -f $file && $keywords) {
 	    open(my $f, '<', $file)
 		or die "$P: Can't open $file: $!\n";
 	    my $text = do { local($/) ; <$f> };
@@ -539,10 +555,6 @@ sub read_mailmap {
 		    }
 		}
 	    }
-	    if ($file_emails) {
-		my @poss_addr = $text =~ m$[A-Za-zÀ-ÿ\"\' \,\.\+-]*\s*[\,]*\s*[\(\<\{]{0,1}[A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+\.[A-Za-z0-9]+[\)\>\}]{0,1}$g;
-		push(@file_emails, clean_file_emails(@poss_addr));
-	    }
 	}
     } else {
 	my $file_cnt = @files;
@@ -923,6 +935,8 @@ sub get_maintainers {
 		print("\n");
 	    }
 	}
+
+	maintainers_in_file($file);
     }
 
     if ($keywords) {
@@ -1835,7 +1849,7 @@ sub interactive_get_maintainers {
 tg toggle git entries
 tl toggle open list entries
 ts toggle subscriber list entries
-f  emails in file       [$file_emails]
+f  emails in file       [$email_file_emails]
 k  keywords in file     [$keywords]
 r  remove duplicates    [$email_remove_duplicates]
 p# pattern match depth  [$pattern_depth]
@@ -1960,7 +1974,7 @@ sub interactive_get_maintainers {
 		bool_invert(\$email_git_all_signature_types);
 		$rerun = 1;
 	    } elsif ($sel eq "f") {
-		bool_invert(\$file_emails);
+		bool_invert(\$email_file_emails);
 		$rerun = 1;
 	    } elsif ($sel eq "r") {
 		bool_invert(\$email_remove_duplicates);