More conky updates

conky/conky-7inch

@@ -33,9 +33,9 @@ ${font Arial:size=12}${color Yellow}${alignc}N0CALL
 ${voffset -30}
 ${font Arial:bold:size=08}${color White}Gridsquare ${alignr}${color Yellow}${execi 60 cat /run/user/1000/gridinfo.txt | cut -c1-8}
 #${font Arial:bold:size=12}${color White}Radio Freq ${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq | cut -c1-6}
-${color Yellow}LOCAL${alignr}ZULU
 ${voffset -20}
 ${color DarkSlateGray}${hr 2}
+${color Yellow}LOCAL${alignr}ZULU
 ${font Arial:bold:size=08}${color White}${time %H:%M:%S}\
 ${alignr}${tztime Zulu %H:%M:%S}
 ${font Arial:bold:size=08}${color White}${time %d%b%y}\

conky/conky-large

@@ -41,11 +41,10 @@ ${font Arial:bold:size=18}${color White}Gridsquare ${alignr}${color Yellow}${exe
 #${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq VFOA | cut -c1-7}
 #${font Arial:bold:size=18}${color White}Radio Freq B ${if_match "VFOB" == "${execi 5 $HOME/bin/conky/get-vfo}"}*$endif\
 #${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq VFOB | cut -c1-7}
-
-${color Yellow}LOCAL${alignr}ZULU
 ${voffset -45}
 ${color DarkSlateGray}${hr 2}
 ${voffset -35}
+${color Yellow}LOCAL${alignr}ZULU
 ${font Arial:bold:size=25}${color White}${time %H:%M:%S}\
 ${alignr}${tztime Zulu %H:%M:%S}
 ${font Arial:bold:size=25}${color White}${time %d%b%y}\

conky/conky-medium

@@ -40,8 +40,8 @@ ${font Arial:bold:size=12}${color White}Gridsquare ${alignr}${color Yellow}${exe
 #${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq VFOA | cut -c1-7}
 #${font Arial:bold:size=12}${color White}Radio Freq B ${if_match "VFOB" == "${execi 5 $HOME/bin/conky/get-vfo}"}*$endif\
 #${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq VFOB | cut -c1-7}
-${color Yellow}LOCAL${alignr}ZULU
 ${color DarkSlateGray}${hr 2}
+${color Yellow}LOCAL${alignr}ZULU
 ${font Arial:bold:size=15}${color White}${time %H:%M:%S}\
 ${alignr}${tztime Zulu %H:%M:%S}
 ${font Arial:bold:size=15}${color White}${time %d%b%y}\

conky/conky-small

@@ -40,9 +40,9 @@ ${font Arial:bold:size=08}${color White}Gridsquare ${alignr}${color Yellow}${exe
 #${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq VFOA | cut -c1-7}
 #${font Arial:bold:size=12}${color White}Radio Freq B ${if_match "VFOB" == "${execi 5 $HOME/bin/conky/get-vfo}"}*$endif\
 #${alignr}${color Yellow}${execi 5 $HOME/bin/conky/get-freq VFOB | cut -c1-7}
-${color Yellow}LOCAL${alignr}ZULU
 ${voffset -20}
 ${color DarkSlateGray}${hr 2}
+${color Yellow}LOCAL${alignr}ZULU
 ${font Arial:bold:size=08}${color White}${time %H:%M:%S}\
 ${alignr}${tztime Zulu %H:%M:%S}
 ${font Arial:bold:size=08}${color White}${time %d%b%y}\

conky/cronfile

@@ -0,0 +1,2 @@
+#Update GPS maidenhead for conky
+*/1 * * * * /home/pi/bin/conky/grid

conky/get-grid

@@ -1,23 +1,61 @@
-#!/usr/bin/env ruby
+#!/usr/bin/env bash
+set -e
+[ -n "$DEBUG" ] && set -x
 
-require 'gpsd_client'
-require 'maidenhead'
-require 'socket'
-require 'json'
+LAT=$1
+LON=$2
+HOST=$3
+PORT=$4
 
-ft8call_port = 2237
+if [ "$HOST" = "" ]; then
+  HOST=localhost
+fi
+if [ "$PORT" = "" ]; then
+  PORT=2947
+fi
 
-gpsd = GpsdClient::Gpsd.new()
-gpsd.start()
-apicmd = {}
+compile_maidenhead() {
+  gcc $HOME/bin/conky/maidenhead.c -o $HOME/bin/conky/mh
+  chmod +x $HOME/bin/conky/mh
+}
 
-# get maidenhead if gps is ready
-if gpsd.started?
-  pos = gpsd.get_position
-  maid = Maidenhead.to_maidenhead(pos[:lat], pos[:lon], precision = 5)
-#  puts "lat = #{pos[:lat]}, lon = #{pos[:lon]}, grid = #{maid}"
-  apicmd = {:type => "STATION.SET_GRID", :value => maid}
-end
+get_maidenhead_with_ruby() {
+  grid=$(ruby get-grid.rb)
+}
 
-puts "#{maid}"
+get_maidenhead_with_gpspipe() {
+  if ! hash gpspipe 2>/dev/null; then
+    sudo apt install -y gpsd-clients jq
+  fi
+  if timeout 5 gpspipe -w -r $HOST:$PORT | grep -m 1 TPV &>/dev/null; then
+    nema=$(gpspipe -w -r $HOST:$PORT | grep -m 1 TPV)
+    # GPS Coordinate Set
+    lat=$(echo $nema | jq -r '"\(.lat)"')
+    [ -z "$lat" ] && echo "Latitude error?" && exit
+    lon=$(echo $nema | jq -r '"\(.lon)"')
+    [ -z "$lon" ] && echo "Longitude error?" && exit
+    grid=$($HOME/bin/conky/mh -a $lat -l $lon)
+  else
+    grid="NO GPS"
+  fi
+}
+
+get_maidenhead_with_args() {
+  grid=$($HOME/bin/conky/mh -a $LAT -l $LON)
+}
+
+if hash gcc 2>/dev/null; then
+  compile_maidenhead
+fi
+
+if [ -z "$LAT" ]; then
+  if hash ruby 2>/dev/null; then
+    get_maidenhead_with_ruby
+  else
+    get_maidenhead_with_gpspipe
+  fi
+else
+  get_maidenhead_with_args
+fi
+echo $grid
 

conky/get-grid.rb

@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+
+require 'gpsd_client'
+require 'maidenhead'
+require 'socket'
+require 'json'
+
+ft8call_port = 2237
+
+options = {:host => ARGV[0] ||= ENV["HOST"], :port => ARGV[1] ||= ENV["PORT"] }
+
+gpsd = GpsdClient::Gpsd.new(options)
+gpsd.start()
+apicmd = {}
+
+# get maidenhead if gps is ready
+if gpsd.started?
+  pos = gpsd.get_position
+  maid = Maidenhead.to_maidenhead(pos[:lat], pos[:lon], precision = 5)
+#  puts "lat = #{pos[:lat]}, lon = #{pos[:lon]}, grid = #{maid}"
+  apicmd = {:type => "STATION.SET_GRID", :value => maid}
+end
+
+puts "#{maid}"
+

conky/grid

@@ -10,7 +10,14 @@ FILE=/run/user/$UID/gridinfo.txt
 
 if [ -z "$GRIDCH" ]
 then
-echo $GRID > $FILE
+  # + = Grid from GPS (GPS online)
+  # - = Grid from Cache (GPS offline)
+  if [ "$GRID" != "NO GPS" ]; then
+    echo "$GRID +" > $FILE
+  else
+    cache=$(cat $FILE | sed 's/ //g;s/+//g;s/-//g')
+    echo "$cache -" > $FILE
+  fi
 else
 echo "NO GPS" > $FILE
-fi
+fi

conky/maidenhead.c

@@ -0,0 +1,134 @@
+/* Taken from https://opensource.com/article/19/5/how-write-good-c-main-function */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <errno.h>
+#include <string.h>
+#include <getopt.h>
+
+#define OPTSTR "va:l:h"
+#define USAGE_FMT  "%s [-v] [-a latitude] [-l longitude] [-h]"
+#define ERR_LAT "lat"
+#define ERR_LON  "lon"
+#define ERR_DO_GET_GRID "do_get_grid blew up"
+#define DEFAULT_PROGNAME "get_grid"
+
+extern int errno;
+extern char *optarg;
+extern int opterr, optind;
+
+typedef struct {
+  int          verbose;
+  char         *dst;
+  double       lon;
+  double       lat;
+} options_t;
+
+int dumb_global_variable = -11;
+void usage(char *progname, int opt);
+int  do_get_grid(options_t *options);
+void calcLocator(char *dst, double lat, double lon);
+
+int main(int argc, char *argv[]) {
+    int opt;
+    options_t options = { 0, 0, 0.0, 0.0 };
+
+    opterr = 0;
+
+    while ((opt = getopt(argc, argv, OPTSTR)) != EOF)
+       switch(opt) {
+           case 'a':
+              if (!(options.lat = strtod(optarg, &optarg) )) {
+                 perror(ERR_LAT);
+                 exit(EXIT_FAILURE);
+                 /* NOTREACHED */
+              }
+              break;
+
+           case 'l':
+              if (!(options.lon = strtod(optarg, &optarg) )) {
+                 perror(ERR_LON);
+                 exit(EXIT_FAILURE);
+                 /* NOTREACHED */
+              }    
+              break;
+
+           case 'v':
+              options.verbose += 1;
+              break;
+
+           case 'h':
+           default:
+              usage(basename(argv[0]), opt);
+              /* NOTREACHED */
+              break;
+       }
+
+    if (do_get_grid(&options) != EXIT_SUCCESS) {
+       perror(ERR_DO_GET_GRID);
+       exit(EXIT_FAILURE);
+       /* NOTREACHED */
+    }
+    fprintf(stdout, "%s", options.dst);
+    free(options.dst);
+    return EXIT_SUCCESS;
+}
+
+void usage(char *progname, int opt) {
+   fprintf(stderr, USAGE_FMT, progname ? progname:DEFAULT_PROGNAME);
+   exit(EXIT_FAILURE);
+   /* NOTREACHED */
+}
+
+int do_get_grid(options_t *options) {
+  if (!options) {
+    errno = EINVAL;
+    return EXIT_FAILURE;
+  } 
+
+  if (!options->lon || !options->lat) {
+    errno = ENOENT;
+    return EXIT_FAILURE;
+  } 
+
+  options->dst = malloc((sizeof(char) * 3) + 1); /* + 1 allows for null string terminator. */
+
+  calcLocator(options->dst, options->lat, options->lon);
+  return EXIT_SUCCESS;
+}
+
+/* https://ham.stackexchange.com/a/5599 */
+void calcLocator(char *dst, double lat, double lon) {
+  int o1, o2, o3;
+  int a1, a2, a3;
+  double remainder;
+  // longitude
+  remainder = lon + 180.0;
+  o1 = (int)(remainder / 20.0);
+  remainder = remainder - (double)o1 * 20.0;
+  o2 = (int)(remainder / 2.0);
+  remainder = remainder - 2.0 * (double)o2;
+  o3 = (int)(12.0 * remainder);
+
+  // latitude
+  remainder = lat + 90.0;
+  a1 = (int)(remainder / 10.0);
+  remainder = remainder - (double)a1 * 10.0;
+  a2 = (int)(remainder);
+  remainder = remainder - (double)a2;
+  a3 = (int)(24.0 * remainder);
+  dst[0] = (char)o1 + 65;
+  dst[1] = (char)a1 + 65;
+  dst[2] = (char)o2 + 48;
+  dst[3] = (char)a2 + 48;
+  dst[4] = (char)o3 + 97;
+  dst[5] = (char)a3 + 97;
+ /* dst[0] = (char)o1 + 'A';
+  dst[1] = (char)a1 + 'A';
+  dst[2] = (char)o2 + '0';
+  dst[3] = (char)a2 + '0';
+  dst[4] = (char)o3 + 'A';
+  dst[5] = (char)a3 + 'A';*/
+  dst[6] = (char)0;
+}

conky/update

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+mkdir -p $HOME/bin/conky
+cp -p $HOME/pi-build/conky/* $HOME/bin/conky/
+chmod +x $HOME/bin/conky/get-grid $HOME/bin/conky/get-freq $HOME/bin/conky/grid $HOME/bin/conky/setconky
+
+#Create files needed for autostart at login
+#Fix issue https://github.com/km4ack/pi-build/issues/83
+
+cat <<EOF > $HOME/.local/share/applications/conky.desktop
+[Desktop Entry]
+Name=Conky
+Comment=Conky
+GenericName=Conky Screen Background Monitor
+Exec=conky
+Icon=/home/pi/bin/conky/conky-logo.png
+Type=Application
+Encoding=UTF-8
+Terminal=false
+Categories=HamRadio
+Keywords=Radio
+EOF
+
+ln -sf $HOME/.local/share/applications/conky.desktop $HOME/.config/autostart/conky.desktop
+
+#####Add setconky to main menu
+cat <<EOF > $HOME/.local/share/applications/setconky.desktop
+[Desktop Entry]
+Name=Conky-Prefs
+Comment=Conky-Prefs
+GenericName=Change Conky Preferences
+Exec=/home/pi/bin/conky/setconky
+Icon=/home/pi/bin/conky/conky-logo.png
+Type=Application
+Encoding=UTF-8
+Terminal=false
+Categories=Settings;DesktopSettings;GTK;X-LXDE-Settings;
+Keywords=Radio,Conky
+EOF