linux-kernel - [PATCH v2 1/4] scripts/get_feat.pl: allow output the parsed file names

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Date:   Fri, 25 Mar 2022 15:05:11 +0100
From:   Mauro Carvalho Chehab <mchehab@...nel.org>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Hans de Goede" <hdegoede@...hat.com>,
        "Stephen Rothwell" <sfr@...b.auug.org.au>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/4] scripts/get_feat.pl: allow output the parsed file names

Such output could be helpful while debugging it, but its main
goal is to tell kernel_feat.py about what files were used
by the script. Thie way, kernel_feat.py can add those as
documentation dependencies.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
---

To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover.
See [PATCH v2 0/4] at: https://lore.kernel.org/all/cover.1648216561.git.mchehab@kernel.org/

 scripts/get_feat.pl | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/scripts/get_feat.pl b/scripts/get_feat.pl
index 457712355676..b7154cf60c1d 100755
--- a/scripts/get_feat.pl
+++ b/scripts/get_feat.pl
@@ -13,6 +13,7 @@ my $man;
 my $debug;
 my $arch;
 my $feat;
+my $enable_fname;
 
 my $basename = abs_path($0);
 $basename =~ s,/[^/]+$,/,;
@@ -31,6 +32,7 @@ GetOptions(
 	'arch=s' => \$arch,
 	'feat=s' => \$feat,
 	'feature=s' => \$feat,
+	"enable-fname" => \$enable_fname,
 	man => \$man
 ) or pod2usage(2);
 
@@ -95,6 +97,10 @@ sub parse_feat {
 	return if ($file =~ m,($prefix)/arch-support.txt,);
 	return if (!($file =~ m,arch-support.txt$,));
 
+	if ($enable_fname) {
+		printf "#define FILE %s\n", abs_path($file);
+	}
+
 	my $subsys = "";
 	$subsys = $2 if ( m,.*($prefix)/([^/]+).*,);
 
@@ -580,6 +586,11 @@ Output features for a single specific feature.
 Changes the location of the Feature files. By default, it uses
 the Documentation/features directory.
 
+=item B<--enable-fname>
+
+Prints the file name of the feature files. This can be used in order to
+track dependencies during documentation build.
+
 =item B<--debug>
 
 Put the script in verbose mode, useful for debugging. Can be called multiple
-- 
2.35.1