[PATCH] get_maintainer.pl: Reduce need for command-line option -f

From: Joe Perches
Date: Thu Jul 28 2016 - 18:54:29 EST


If a vcs is used, look to see if the vcs tracks the file specified
and so the -f option becomes optional.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
scripts/get_maintainer.pl | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 1873421..122fcda 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -133,6 +133,7 @@ my %VCS_cmds_git = (
"author_pattern" => "^GitAuthor: (.*)",
"subject_pattern" => "^GitSubject: (.*)",
"stat_pattern" => "^(\\d+)\\t(\\d+)\\t\$file\$",
+ "file_exists_cmd" => "git ls-files \$file",
);

my %VCS_cmds_hg = (
@@ -161,6 +162,7 @@ my %VCS_cmds_hg = (
"author_pattern" => "^HgAuthor: (.*)",
"subject_pattern" => "^HgSubject: (.*)",
"stat_pattern" => "^(\\d+)\t(\\d+)\t\$file\$",
+ "file_exists_cmd" => "hg files \$file",
);

my $conf = which_conf(".get_maintainer.conf");
@@ -430,7 +432,7 @@ foreach my $file (@ARGV) {
die "$P: file '${file}' not found\n";
}
}
- if ($from_filename) {
+ if ($from_filename || vcs_file_exists($file)) {
$file =~ s/^\Q${cur_path}\E//; #strip any absolute path
$file =~ s/^\Q${lk_path}\E//; #or the path to the lk tree
push(@files, $file);
@@ -2124,6 +2126,22 @@ sub vcs_file_blame {
}
}

+sub vcs_file_exists {
+ my ($file) = @_;
+
+ my $exists;
+
+ my $vcs_used = vcs_exists();
+ return 0 if (!$vcs_used);
+
+ my $cmd = $VCS_cmds{"file_exists_cmd"};
+ $cmd =~ s/(\$\w+)/$1/eeg; # interpolate $cmd
+
+ $exists = &{$VCS_cmds{"execute_cmd"}}($cmd);
+
+ return $exists;
+}
+
sub uniq {
my (@parms) = @_;

--
2.8.0.rc4.16.g56331f8