Makefile: auto-upgrade

2 files changed, 19 insertions, 7 deletions

diff --git a/Makefile b/Makefile
index b84c8e9dfaad..1f2e848d9e69 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,21 @@
-.PHONY: pre post clean
+.PHONY: post clean upgrade versions
 
-pre:
-	makepkg -g
+LATEST_VER := $(shell curl -s https://github.com/japgolly/tla2json/releases/latest | perl -pe 's!.*/tag/v(.+?)".*!$$1!')
+
+versions:
+	@echo "Current version:"
+	@grep '^pkgver' PKGBUILD | sed 's/.*=/  /'
+	@echo "Latest version:"
+	@echo "  $(LATEST_VER)"
+
+upgrade:
+	rm -f tla2json.jar
+	perl -pi -e 's/^pkgver=.+/pkgver=$(LATEST_VER)/' PKGBUILD
+	bash -c 'sed -i -e "/^sha256sums.*/,+1c $$(makepkg -g | perl -0777 -pe "chop; s/\n/\\\n/g")" PKGBUILD'
+	make post
+	git add .SRCINFO PKGBUILD
+	git commit -m "Upgrade to $(LATEST_VER)" .SRCINFO PKGBUILD
+	git show
 
 post:
 	makepkg --verifysource -f
diff --git a/PKGBUILD b/PKGBUILD
index 12f78d2ec603..edda5fe2ea3a 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -12,10 +12,8 @@ source=(
   "https://github.com/japgolly/tla2json/releases/download/v$pkgver/tla2json.jar"
   tla2json
 )
-sha256sums=(
-  '2054d7f60521fd6a8dc974b927d69a380ba867b000e3d71dc46fafd8c291c22d'
-  'be4a88d33ab6f20c09270b22830b08f37fd059e888b9c272f0fe6c088337e92f'
-)
+sha256sums=('2054d7f60521fd6a8dc974b927d69a380ba867b000e3d71dc46fafd8c291c22d'
+            'be4a88d33ab6f20c09270b22830b08f37fd059e888b9c272f0fe6c088337e92f')
 
 package() {
   mkdir -p "$pkgdir/usr/share/java" "$pkgdir/usr/bin"