show_location_in_chrome.sh

#!/usr/bin/env bash

CHROME_BIN=/opt/google/chrome/chrome

function exit_with_error {
    if [ "$GUI" ]; then
        zenity --error --text "$1"
    else
        echo "$1" >&2
    fi

    exit 1
}

# Parses the output of exif and returns three numbers separated by a space.
function parse_coords_output {
    echo -n "$1" | head -n 1 | sed "s/\s*//g" | sed "s/,/ /g"
}

function dms_to_decimal {
    eval "DMS=($1)"
    FORMULA="${DMS[0]} + ((${DMS[1]} * 60) + ${DMS[2]}) / 3600"
    echo "scale=7; $FORMULA" | bc
}

if [ ! $# -eq 1 ]; then
    exit_with_error "Expected one argument"
elif [ ! -f "$1" ]; then
    exit_with_error "File doesn't exist: $1"
fi

RAW_LATITUDE=$(exif "$1" -t GPSLatitude -m 2>&1)
RAW_LONGITUDE=$(exif "$1" -t GPSLongitude -m 2>&1)

if [ ! $? -eq 0 ]; then
    exit_with_error "Couldn't find any coordinate metadata"
fi

LAT=$(dms_to_decimal "$(parse_coords_output "$RAW_LATITUDE")")
LNG=$(dms_to_decimal "$(parse_coords_output "$RAW_LONGITUDE")")
URL="http://maps.google.com/?q=loc:$LAT,$LNG"

$CHROME_BIN $URL