[libcalamares] Extract zone.tab data for translations

src/libcalamares/locale/zone-extractor.py

@@ -0,0 +1,105 @@
+#! /usr/bin/env python3
+#
+#  === This file is part of Calamares - <https://github.com/calamares> ===
+#
+# Python3 script to scrape some data out of zoneinfo/zone.tab.
+#
+### BEGIN LICENSES
+#
+# Copyright 2019 Adriaan de Groot <groot@kde.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#   1. Redistributions of source code must retain the above copyright
+#      notice, this list of conditions and the following disclaimer.
+#   2. Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions and the following disclaimer in the
+#      documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+### END LICENSES
+ 
+### BEGIN USAGE
+#
+"""
+Python3 script to scrape some data out of zoneinfo/zone.tab.
+
+To use this script, you must have a zone.tab in a standard location.
+FreeBSD uses /usr/share/zoneinfo/zone.tab, so that's where it looks.
+
+Prints out a few tables of zone names for use in translations.
+"""
+
+def scrape_file(file, regionset, zoneset):
+    for line in file.readlines():
+        if line.startswith("#"):
+            continue
+        parts = line.split("\t")
+        if len(parts) < 3:
+            continue
+        
+        zoneid = parts[2]
+        if not "/" in zoneid:
+            continue
+        
+        region, zone = zoneid.split("/", 1)
+        
+        zone = zone.strip().replace("_", " ")
+        
+        regionset.add(region)
+        assert(zone not in zoneset)
+        zoneset.add(zone)
+
+def write_set(file, label, set):
+    file.write("/* This returns a reference to local, which is a terrible idea.\n * Good thing it's not meant to be compiled.\n */\n")
+    # Note {{ is an escaped { for Python string formatting
+    file.write("static const QStringList& {!s}_table()\n{{\n\treturn QStringList {{\n".format(label))
+    for x in set:
+        file.write("""\t\tQObject::tr("{!s}", "{!s}"),\n""".format(x, label))
+    file.write("\t\tQString()\n\t};\n}\n\n")
+    
+cpp_header_comment = """/*   GENERATED FILE DO NOT EDIT
+*
+*  === This file is part of Calamares - <https://github.com/calamares> ===
+*
+* This file is derived from zone.tab, which has its own copyright statement:
+*
+* This file is in the public domain, so clarified as of
+* 2009-05-17 by Arthur David Olson.
+*
+* From Paul Eggert (2018-06-27):
+* This file is intended as a backward-compatibility aid for older programs.
+* New programs should use zone1970.tab.  This file is like zone1970.tab (see
+* zone1970.tab's comments), but with the following additional restrictions:
+*
+* 1.  This file contains only ASCII characters.
+* 2.  The first data column contains exactly one country code.
+*
+*/
+
+/** THIS FILE EXISTS ONLY FOR TRANSLATIONS PURPOSES **/
+"""
+
+if __name__ == "__main__":
+    regions=set()
+    zones=set()
+    with open("/usr/share/zoneinfo/zone.tab", "r") as f:
+        scrape_file(f, regions, zones)
+    with open("ZoneData_p.cpp", "w") as f:
+        f.write(cpp_header_comment)
+        write_set(f, "tz_regions", regions)
+        write_set(f, "tz_names", zones)
+