Implement downloadable timezone database

[geeqie.git] / scripts / zonedetect / create_timezone_database

diff --git a/scripts/zonedetect/create_timezone_database b/scripts/zonedetect/create_timezone_database
new file mode 100755 (executable)
index 0000000..d121c22
--- /dev/null
+++ b/scripts/zonedetect/create_timezone_database
@@ -0,0 +1,95 @@
+#! /bin/sh
+
+# This script will generate the timezone database file used to
+# correct exif time and date for UTC offset and Daylight Saving Time.
+#
+# The Preferences/General tab of Geeqie gives the user the option to
+# download the database from a defined location on geeqie.org.
+#
+# If the generated file differs from that on geeqie.org you should
+# upload the new version. You will need write privileges to do this.
+#
+# Refer to https://github.com/BertoldVdb/ZoneDetect for the
+# origin of files builder.cpp and zoneToAlpha.h
+
+timezone_boundary_builder_default_release="2019a"
+
+cd "$(dirname "$0")"
+current_dir=$PWD
+
+xdg-open https://github.com/evansiroky/timezone-boundary-builder/releases/
+
+if [ -f timezone_boundary_builder_release.txt ]
+then
+       timezone_boundary_builder_release=$(cat timezone_boundary_builder_release.txt)
+else
+       timezone_boundary_builder_release=$timezone_boundary_builder_default_release
+fi
+
+timezone_boundary_builder_release=$(zenity --entry --entry-text="$timezone_boundary_builder_release" --title "Geeqie generate timezone database" --text="Which timezone boundary builder\nrelease should be used?\n" --width=350 --window-icon=$current_dir/../../geeqie.png)
+
+if [ -n "$timezone_boundary_builder_release" ]
+then
+       echo "$timezone_boundary_builder_release" > "timezone_boundary_builder_release.txt"
+else
+       exit
+fi
+
+rm -rf naturalearth
+rm -rf timezone
+rm -rf geeqie_org
+rm -f timezone21.bin
+
+g++ builder.cpp -o builder -lshp
+
+mkdir naturalearth
+cd naturalearth
+wget https://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_admin_0_countries_lakes.zip
+if [ $? -ne 0 ]
+then
+       zenity --error --text="Download of naturalearthdata failed" --title="Generate Geeqie timezone database" --width=300 --window-icon=$current_dir/../../geeqie.png
+       exit
+fi
+
+unzip ne_10m_admin_0_countries_lakes.zip
+cd ..
+
+mkdir timezone
+cd timezone
+wget https://github.com/evansiroky/timezone-boundary-builder/releases/download/$timezone_boundary_builder_release/timezones.shapefile.zip
+if [ $? -ne 0 ]
+then
+       zenity --error --text="Download of timezone-boundary-builder failed" --title="Generate Geeqie timezone database" --width=300 --window-icon=$current_dir/../../geeqie.png
+       exit
+fi
+
+unzip timezones.shapefile.zip
+cd ..
+
+
+./builder T timezone/dist/combined-shapefile timezone21.bin 21 "Contains data from Natural Earth, placed in the Public Domain. Contains information from https://github.com/evansiroky/timezone-boundary-builder, which is made available here under the Open Database License (ODbL)."
+
+mkdir geeqie_org
+cd geeqie_org
+wget http://www.geeqie.org/downloads/timezone21.bin
+if [ $? -ne 0 ]
+then
+       zenity --error --text="Download of timezone database from geeqie.org failed" --title="Generate Geeqie timezone database" --width=300 --window-icon=$current_dir/../../geeqie.png
+       exit
+fi
+cd ..
+
+diff ./geeqie_org/timezone21.bin timezone21.bin
+
+if [ $? != 0 ]
+then 
+       zenity --info --title="Generate Geeqie timezone database" --text="Generated file differs from that on geeqie.org\n\nUpload timezone21.bin to:\ngeeqie.org/downloads/" --width=300 --window-icon=$current_dir/../../geeqie.png
+else
+       zenity --info --title="Generate Geeqie timezone database" --text="Generated file is the same as on geeqie.org" --width=300 --window-icon=$current_dir/../../geeqie.png
+       rm timezone21.bin
+fi
+
+rm -f builder
+rm -rf naturalearth
+rm -rf timezone
+rm -rf geeqie_org