acme: Add package.

This adds a package wrapping the acme.sh script from
https://github.com/Neilpang/acme.sh in Uci config and hooks to interact
correctly with uhttpd.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>

net/acme/Makefile

@@ -0,0 +1,58 @@
+#
+# Copyright (C) 2016 Toke Høiland-Jørgensen
+#
+# This is free software, licensed under the GNU General Public License v3 or
+# later.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=acme
+PKG_SOURCE_VERSION:=1e6b68f5d187fa3d64c889d04a77ee1c79726282
+PKG_VERSION:=1.0
+PKG_RELEASE:=1
+PKG_LICENSE:=GPLv3
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_RELEASE).tar.xz
+PKG_SOURCE_URL:=git://github.com/Neilpang/acme.sh.git
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_RELEASE)
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)-$(PKG_RELEASE)
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/acme
+  SECTION:=net
+  CATEGORY:=Network
+  DEPENDS:=+curl +ca-certificates +uhttpd-mod-tls +openssl-util
+  TITLE:=ACME (Letsencrypt) client
+  PKGARCH:=all
+  MAINTAINER:=Toke Høiland-Jørgensen <toke@toke.dk>
+endef
+
+define Package/acme/description
+ A client for issuing Letsencrypt certificates.
+endef
+
+define Package/acme/conffiles
+/etc/config/acme
+/etc/acme
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/acme/install
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) ./files/acme.config $(1)/etc/config/acme
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/acme.init $(1)/etc/init.d/acme
+	$(INSTALL_DIR) $(1)/usr/lib/acme
+	$(INSTALL_BIN) ./files/run.sh $(1)/usr/lib/acme/run-acme
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/acme.sh $(1)/usr/lib/acme/acme.sh
+endef
+
+$(eval $(call BuildPackage,acme))