Syncthing (#918)

* adds syncthing

* add proper description...

* made it readable...

packages/syncthing/build.sh

@@ -0,0 +1,34 @@
+TERMUX_PKG_HOMEPAGE=https://syncthing.net/
+TERMUX_PKG_DESCRIPTION="decentralized file synchronization"
+TERMUX_PKG_VERSION=0.14.27-rc.2
+TERMUX_PKG_SRCURL=https://github.com/syncthing/syncthing/archive/v0.14.27-rc.2.tar.gz
+TERMUX_PKG_SHA256=2243d3ddec966fef7f6563e3028c17f55916479a4e8fe5b30cd0960825f9f3b0
+TERMUX_PKG_FOLDERNAME=syncthing-${TERMUX_PKG_VERSION}
+termux_step_make(){
+termux_setup_golang
+
+# the build.sh script doesn't with our compiler 
+# so small adjustments to file locations needed
+# so the build.go is fine.
+
+	mkdir -p go/src/github.com/syncthing/syncthing
+	cp $TERMUX_PKG_SRCDIR/vendor/* ./go/src/ -r
+	cp $TERMUX_PKG_SRCDIR/*  go/src/github.com/syncthing/syncthing -r
+
+# set gopath so dependencies are built as in go get etc
+	export GOPATH=$(pwd)/go
+	cd go/src/github.com/syncthing/syncthing
+# unset GOARCH so building build.go is works
+	export GO_ARCH=$GOARCH
+	unset GOOS
+	unset GOARCH  
+# now fike structure is same as go get etc..
+# we can build it
+	go build build.go
+	./build -goos android -goarch $GO_ARCH -no-upgrade build
+}
+# im sure there are better ways of doing it. I don't use go though.
+
+termux_step_make_install() {
+cp go/src/github.com/syncthing/syncthing/syncthing $TERMUX_PREFIX/bin/
+}