From 0ab1c3cab54a8bc56c6ae312db7c5052ef76efe3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=B4me=20Benoit?= <jerome.benoit@sap.com>
Date: Sun, 6 Nov 2022 21:07:52 +0100
Subject: [PATCH] Make help follow docopt
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Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>
---
 build-image.sh | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/build-image.sh b/build-image.sh
index bb2abc8..eca15fc 100755
--- a/build-image.sh
+++ b/build-image.sh
@@ -1,5 +1,7 @@
 #!/usr/bin/env sh
 
+shopt -s extglob
+
 images="mbt-node14-java11-docker mbt-node16-java11-docker mbt-node18-java11-docker \
   mbt-node14-java17-docker mbt-node16-java17-docker mbt-node18-java17-docker \
   mbt-node14-java19-docker mbt-node16-java19-docker mbt-node18-java19-docker"
@@ -9,7 +11,19 @@ repositories="mbt-node14-java11-docker mbt-node16-java11-docker mbt-node18-java1
   mbt-node14-java19-docker mbt-node16-java19-docker mbt-node18-java19-docker"
 
 usage() {
-  echo "Usage: ./$(basename $0) [-b <${images// /|}|all>] [-p <${repositories// /|}|all>] [-c]" 1>&2; exit 1;
+  echo "    Build docker images.
+
+    Usage:
+      ./$(basename $0) [-b <name>]
+      ./$(basename $0) [-p <name>]
+      ./$(basename $0) [-c]
+      ./$(basename $0) [-h]
+
+    Options:
+      -h  Show this help.
+      -b <${images//+([[:space:]])/|}|all>  Build docker images.
+      -p <${repositories//+([[:space:]])/|}|all>  Push docker images.
+      -c  Clean docker images." 1>&2; exit 1;
 }
 
 build_all() {
-- 
2.34.1