install

#!/bin/sh

countries() {

awk '

BEGIN {
  arr = ""
  buf = ""
  print "return {"
}

/^const char (\* )?GeoIP_country_/ {
  arr = $0
  i = index(arr, "_country_")
  if (i) {
    arr = substr(arr, i+9)
    i = index(arr, "[")
    arr = substr(arr, 1, i-1)
  }
  buf = ""
}

/\}\;$/ {
  buf = buf $0
  gsub(/.*{/, "", buf)
  gsub(/};/, "", buf)
  gsub(/	/, "", buf)
  if (arr) {
    print "  " arr " = {" buf "},"
  }
  arr = ""
}

{
  if (arr) {
    buf = buf $0
  }
}

END {
  print "}"
}

'

}

timezones() {

awk '

BEGIN {
  country = ""
  region = ""
  print "return {"
}

/strcmp \(country\, "([A-Z]+)"\)/ {
  if (country) s = $6; else s = $5
  country = substr(s,2,2)
  region = ""
}
/strcmp \(region\, \"([A-Z0-9]+)\"\)/ {
  if (region) s = $6; else s = $5
  region = substr(s,2,2)
}
/timezone = "/ {
  print "  [\"" country region "\"] = \"" substr($3,2,length($3)-3) "\","
}

END {
  print "}"
}

'

}

currencies() {

awk '

BEGIN {
  done = 0
  code = ""
  num = ""
  name = ""
  print "return {"
}
/		letter_code="([A-Z]+)"/ {
  code = substr($1,14,3)
}
/		numeric_code="([0-9]+)"/ {
  num = substr($1,15,3)
}
/		currency_name="([^"]+)"/ {
  name = substr($0,18)
  i = index(name, "\"")
  name = substr(name,1,i-1)
  if (!done) {
    print "  [\"" code "\"] = { id = \"" code "\", code = \"" num "\", name = \"" name "\" },"
  }
}
/historic_iso_4217_entry/ {
  if (code) done = 1
}

END {
  print "}"
}

'

}

(
	if ! test -f GeoLiteCity.dat; then
		wget -qct3 http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz -O GeoLiteCity.dat.part && mv GeoLiteCity.dat.part GeoLiteCity.dat.gz && gunzip GeoLiteCity.dat.gz
	fi
	mkdir -p build
	cd build
	# fetch libGeoIP sources
	V=1.4.8
	if ! test -f GeoIP-$V/libGeoIP/GeoIP.c; then
		wget -qct3 http://geolite.maxmind.com/download/geoip/api/c/GeoIP-$V.tar.gz
		tar -xzpf GeoIP-$V.tar.gz
	fi
	# fetch currencies
	if ! test -f iso4217.xml; then
		wget -qct3 https://bitbucket.org/victorlin/correct_pycountry/raw/a144b415d051/src/pycountry/databases/iso4217.xml
	fi
	cd ..
	# extract info
	countries <build/GeoIP-$V/libGeoIP/GeoIP.c >lib/country.lua
	timezones <build/GeoIP-$V/libGeoIP/timeZone.c >lib/timezone.lua
	# TODO: parse also regionName.c
	# TODO: bind languages?, currencies?
	# ...
	#
	currencies <build/iso4217.xml >lib/currency.lua
	# make the first run to get geo.json
	luvit lib/geoip.lua
)

#
# ftp://elsie.nci.nih.gov/pub/tz{code,data}2011b.tar.gz
#