packages: add keybase and kbfs

Fixes #2133

Based on https://github.com/keybase/client/blob/master/packaging/linux/build_binaries.sh

packages/kbfs/build.sh

@@ -0,0 +1,19 @@
+TERMUX_PKG_HOMEPAGE=https://keybase.io
+TERMUX_PKG_DESCRIPTION="keybase kbfs"
+TERMUX_PKG_VERSION=2.5.0
+TERMUX_PKG_SHA256=0f9f785dfa95f4b93a24d18dff4d6a0a8e637139873370eb3f2a8c8d67505dd4
+TERMUX_PKG_SRCURL=https://github.com/keybase/kbfs/archive/v${TERMUX_PKG_VERSION}.tar.gz
+
+termux_step_make_install() {
+	cd $TERMUX_PKG_SRCDIR
+
+	termux_setup_golang
+
+	mkdir -p .gopath/src/github.com/keybase
+	ln -sf "$PWD" .gopath/src/github.com/keybase/kbfs
+	export GOPATH="$PWD/.gopath"
+
+	go build -v -o git-remote-keybase github.com/keybase/kbfs/kbfsgit/git-remote-keybase
+
+	cp git-remote-keybase $TERMUX_PREFIX/bin/git-remote-keybase
+}

packages/keybase/build.sh

@@ -0,0 +1,19 @@
+TERMUX_PKG_HOMEPAGE=https://keybase.io
+TERMUX_PKG_DESCRIPTION="keybase"
+TERMUX_PKG_VERSION=2.5.0
+TERMUX_PKG_SHA256=087ffb156732f56ebf33ce9d1ef04bd836dac25f6e026d27c68232371c16cf94
+TERMUX_PKG_SRCURL=https://github.com/keybase/client/archive/v${TERMUX_PKG_VERSION}.tar.gz
+
+termux_step_make_install() {
+	cd $TERMUX_PKG_SRCDIR
+
+	termux_setup_golang
+
+	mkdir -p .gopath/src/github.com/keybase
+	ln -sf "$PWD" .gopath/src/github.com/keybase/client
+	export GOPATH="$PWD/.gopath"
+
+	go build -v -tags 'production' -o keybase github.com/keybase/client/go/keybase
+
+	cp keybase $TERMUX_PREFIX/bin/keybase
+}