LocaleDB: Make passing qtbase root dir on command-lines optional

We can easily enough obtain the root of the present source tree using
the value of __file__, so might as well do so.

Change-Id: If14773ac1127278b6018a090c0b376437b9c6eec
Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>

1 files changed, 8 insertions, 6 deletions

diff --git a/util/locale_database/qlocalexml2cpp.py b/util/locale_database/qlocalexml2cpp.py
index a859fc1da1..3c8fb84abb 100755
--- a/util/locale_database/qlocalexml2cpp.py
+++ b/util/locale_database/qlocalexml2cpp.py
@@ -4,9 +4,10 @@
 """Script to generate C++ code from CLDR data in QLocaleXML form
 
 See ``cldr2qlocalexml.py`` for how to generate the QLocaleXML data itself.
-Pass the output file from that as first parameter to this script; pass
-the ISO 639-3 data file as second parameter; pass the root of the qtbase
-check-out as third parameter.
+Pass the output file from that as first parameter to this script; pass the ISO
+639-3 data file as second parameter. You can optionally pass the root of the
+qtbase check-out as third parameter; it defaults to the root of the qtbase
+check-out containing this script.
 
 The ISO 639-3 data file can be downloaded from the SIL website:
 
@@ -19,7 +20,7 @@ from pathlib import Path
 from typing import Optional
 
 from qlocalexml import QLocaleXmlReader
-from localetools import unicode2hex, wrap_list, Error, Transcriber, SourceFileEditor
+from localetools import unicode2hex, wrap_list, Error, Transcriber, SourceFileEditor, qtbase_root
 from iso639_3 import LanguageCodeData
 
 class LocaleKeySorter:
@@ -521,8 +522,8 @@ class LocaleHeaderWriter (SourceFileEditor):
 
 
 def main(out, err):
-    # map { CLDR name: Qt file name }
     calendars_map = {
+        # CLDR name: Qt file name fragment
         'gregorian': 'roman',
         'persian': 'jalali',
         'islamic': 'hijri',
@@ -537,7 +538,8 @@ def main(out, err):
                         metavar='input-file.xml')
     parser.add_argument('iso_path', help='path to the ISO 639-3 data file',
                         metavar='iso-639-3.tab')
-    parser.add_argument('qtbase_path', help='path to the root of the qtbase source tree')
+    parser.add_argument('qtbase_path', help='path to the root of the qtbase source tree',
+                        nargs='?', default=qtbase_root)
     parser.add_argument('--calendars', help='select calendars to emit data for',
                         nargs='+', metavar='CALENDAR',
                         choices=all_calendars, default=all_calendars)