fix v4l issue with opencv, serialize db for farmware

apps/farmbot/lib/farmware/farm_script.ex

@@ -96,11 +96,20 @@ defmodule Farmware.FarmScript do
       _something ->
         # Logger.debug ">> [#{thing.name}] [ got info: #{inspect something} ]"
         handle_port(port, thing)
+
       after
-        10_000 -> Logger.error ">> [#{thing.name}] Timed out"
+        10_000 ->
+          Logger.error ">> [#{thing.name}] Timed out"
+          kill_port(port)
     end
   end
 
+  @spec kill_port(port) :: no_return
+  defp kill_port(port) do
+    info = Port.info(port)
+    if info, do: System.cmd("kill", ["#{info[:os_pid]}"])
+  end
+
   # pattern matching is cool
   defp handle_script_output(string, thing) do
     l = String.split(string, "\n")

apps/farmbot/lib/farmware/worker.ex

@@ -35,7 +35,6 @@ defmodule Farmware.Worker do
   end
 
   # when a queue of scripts comes in execute them in order
-  @lint false
   def handle_events(farm_scripts, _from, environment) do
     Logger.debug "Farmware Worker handling #{Enum.count(farm_scripts)} scripts"
     for scr <- farm_scripts do
@@ -45,19 +44,19 @@ defmodule Farmware.Worker do
     {:noreply, [], environment}
   end
 
-  @lint false
   def handle_call(:get_state, _from, state) do
     {:reply, state, [], state}
   end
 
-  @lint false
+  # Discard leaking port info
+  def handle_info({port, _info}, s) when is_port(port), do: {:noreply, [], s}
+
   def handle_info(info, environment) do
     Logger.debug ">> got unhandled info in " <>
       "Farmware Worker: #{inspect info}", nopub: true
     {:noreply, [], environment}
   end
 
-  @lint false
   def handle_cast({:status, status}, environment) do
     env_map = status.user_env # this is kind of silly
 

apps/farmbot_auth/lib/farmbot_http.ex

@@ -75,13 +75,17 @@ defmodule Farmbot.HTTP do
   @spec finish_upload({:ok, HTTPoison.Response.t} |
     {:error, HTTPoison.Error.t}, binary)
     :: {:ok, HTTPoison.Response.t} | {:error, any}
-  defp finish_upload({:ok, _resp}, attachment_url) do
+
+  # We only want to upload if we get a 2XX response.
+  defp finish_upload({:ok, %HTTPoison.Response{status_code: s}}, attachment_url)
+  when s < 300 do
     [x, y, z] = Farmbot.BotState.get_current_pos
     meta = %{x: x, y: y, z: z}
     json = Poison.encode! %{"attachment_url" => attachment_url, "meta" => meta}
     Farmbot.HTTP.post "/api/images", json
   end
 
+  # This is just to strip the struct out of the error.
   defp finish_upload({:error, %HTTPoison.Error{reason: reason}}, aurl),
     do: finish_upload({:error, reason}, aurl)
 

apps/nerves_system_rpi/nerves_defconfig

@@ -66,6 +66,7 @@ BR2_PACKAGE_OPENCV_LIB_PYTHON=y
 BR2_PACKAGE_OPENCV_WITH_JASPER=y
 BR2_PACKAGE_OPENCV_WITH_JPEG=y
 BR2_PACKAGE_OPENCV_WITH_PNG=y
+BR2_PACKAGE_OPENCV_WITH_V4L=y
 BR2_PACKAGE_LIBMNL=y
 BR2_PACKAGE_DNSMASQ=y
 BR2_PACKAGE_DROPBEAR=y
@@ -74,6 +75,8 @@ BR2_PACKAGE_IW=y
 BR2_PACKAGE_WPA_SUPPLICANT=y
 BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN=y
 BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG=y
+BR2_PACKAGE_MRUBY=y
+BR2_PACKAGE_PYTHON_PICAM=y
 BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
 BR2_PACKAGE_WPA_SUPPLICANT_WPA_CLIENT_SO=y
 BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE=y

apps/nerves_system_rpi2/nerves_defconfig

@@ -65,6 +65,7 @@ BR2_PACKAGE_OPENCV_LIB_PYTHON=y
 BR2_PACKAGE_OPENCV_WITH_JASPER=y
 BR2_PACKAGE_OPENCV_WITH_JPEG=y
 BR2_PACKAGE_OPENCV_WITH_PNG=y
+BR2_PACKAGE_OPENCV_WITH_V4L=y
 BR2_PACKAGE_LIBMNL=y
 BR2_PACKAGE_DNSMASQ=y
 BR2_PACKAGE_DROPBEAR=y
@@ -72,6 +73,8 @@ BR2_PACKAGE_HOSTAPD=y
 BR2_PACKAGE_IW=y
 BR2_PACKAGE_WPA_SUPPLICANT=y
 BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG=y
+BR2_PACKAGE_MRUBY=y
+BR2_PACKAGE_PYTHON_PICAM=y
 BR2_TARGET_ROOTFS_SQUASHFS=y
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_NERVES_SYSTEM_NAME="nerves_system_rpi2"

apps/nerves_system_rpi3/nerves_defconfig

@@ -63,6 +63,7 @@ BR2_PACKAGE_OPENCV_LIB_PYTHON=y
 BR2_PACKAGE_OPENCV_WITH_JASPER=y
 BR2_PACKAGE_OPENCV_WITH_JPEG=y
 BR2_PACKAGE_OPENCV_WITH_PNG=y
+BR2_PACKAGE_OPENCV_WITH_V4L=y
 BR2_PACKAGE_LIBV4L=y
 BR2_PACKAGE_LIBV4L_UTILS=y
 BR2_PACKAGE_LIBMNL=y
@@ -72,6 +73,8 @@ BR2_PACKAGE_HOSTAPD=y
 BR2_PACKAGE_IW=y
 BR2_PACKAGE_WPA_SUPPLICANT=y
 BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG=y
+BR2_PACKAGE_MRUBY=y
+BR2_PACKAGE_PYTHON_PICAM=y
 BR2_TARGET_ROOTFS_SQUASHFS=y
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_NERVES_SYSTEM_NAME="nerves_system_rpi3"
@@ -82,5 +85,3 @@ BR2_PACKAGE_NERVES_CONFIG=y
 BR2_PACKAGE_NERVES_CONFIG_NO_ERLINIT_CONF=y
 BR2_PACKAGE_NERVES_CONFIG_APPS="crypto"
 BR2_PACKAGE_NERVES_CONFIG_SNAME="farmbot"
-BR2_PACKAGE_MRUBY=y
-BR2_PACKAGE_PYTHON_PICAM=y