[ptxdist] [RFC 4/4] ptxdist: add a 'lint' subcommand

[Roland Hieber <rhi@pengutronix.de>]

Currently it only prints the list of unreferenced patch directories, but
the functionality could be expanded to other linting tasks as well.

Signed-off-by: Roland Hieber <rhi@pengutronix.de>
---
 bin/ptxdist | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/bin/ptxdist b/bin/ptxdist
index d7bf4d5ffc5d..e9ecbf1cc3cf 100755
--- a/bin/ptxdist
+++ b/bin/ptxdist
@@ -1774,6 +1774,22 @@ do_images()
 	ptxd_make_log images
 }
 
+
+
+#
+#
+#
+do_lint() {
+	local title;
+
+	check_premake_compiler &&
+	title="Unreferenced patch directories:\n" &&
+	ptxd_find_old_patchdirs | while read line; do
+		echo -e "${title}  - ${line}"
+		title=""
+	done
+}
+
 ##################################################################
 ################ normal option parser ############################
 ##################################################################
@@ -2011,6 +2027,10 @@ EOF
 			ptxd_make_log "${images[@]}"
 			exit
 			;;
+		lint)
+			do_lint
+			exit
+			;;
 		list-packages)
 			check_config &&
 			check_deps || return
-- 
2.20.1


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