From 375e174afbaa18aa507e285aa33f7f9a2cf05167 Mon Sep 17 00:00:00 2001
From: Virgil Dupras <hsoft@hardcoded.net>
Date: Wed, 21 Aug 2024 07:16:58 -0400
Subject: [PATCH] Use getdusk.sh

---
 Makefile   |  9 +++------
 getdusk.sh | 24 ++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 6 deletions(-)
 create mode 100755 getdusk.sh

diff --git a/Makefile b/Makefile
index a11c19c..4cd5d38 100644
--- a/Makefile
+++ b/Makefile
@@ -8,12 +8,9 @@ TARGETS = $(ROMNAME) emul_$(CONF).sh
 
 all: $(TARGETS)
 
-files/dusk$(DUSKVER).tar.gz:
-	curl -o $@ $(DUSKURL)/$@
-
-$(DUSKDIR): files/dusk$(DUSKVER).tar.gz
-	cd files && cksum -c SHA512
-	tar zxf files/dusk$(DUSKVER).tar.gz
+$(DUSKDIR):
+	@echo "$(DUSKDIR) not present. Downloading and unpacking..."
+	./getdusk.sh $(DUSKVER)
 
 $(DUSKDIR)/cos/extra.fs: $(DUSKDIR) rc2014.fs
 	cp rc2014.fs $@
diff --git a/getdusk.sh b/getdusk.sh
new file mode 100755
index 0000000..de5dacd
--- /dev/null
+++ b/getdusk.sh
@@ -0,0 +1,24 @@
+#/bin/sh
+# argument is DUSKVER
+DUSKDIR="dusk$1"
+DUSKTAR=dusk$1.tar.gz
+DUSKURL=http://duskos.org/files/${DUSKTAR}
+
+fetch() {
+	echo "Fetching ${DUSKURL}"
+	wget ${DUSKURL} || \
+		curl -O ${DUSKURL} || \
+		ftp ${DUSKURL} || \
+		(echo "no way to fetch a URL!" && exit 1)
+}
+
+[ -e ${DUSKDIR} ] && exit 0
+cd files
+[ -e ${DUSKTAR} ] || fetch
+if command -v sha512sum; then
+	sha512sum -c SHA512 || exit 1
+else
+	cksum -c SHA512 || exit 1
+fi
+cd ..
+tar zxf files/${DUSKTAR}
-- 
2.45.2