[gtk/more-vs-proj-updates: 12/13] win32/gen-version-items.py: Retrive version info from configure.ac

[Chun-wei Fan <fanchunwei src gnome org>]

commit 6a8c6e6299d76536885a22bec52e8cb8ac426f8f
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Aug 5 12:56:49 2022 +0800

    win32/gen-version-items.py: Retrive version info from configure.ac
    
    ...and use that info if no version and/or interface age was specified.  This
    way, we can use this script to help bootstrap builds from Visual Studio
    projects directly from a GIT checkout.

 win32/gen-version-items.py | 55 ++++++++++++++++++++++++++++++++++++----------
 1 file changed, 44 insertions(+), 11 deletions(-)
---
diff --git a/win32/gen-version-items.py b/win32/gen-version-items.py
index a2f450cfe1..2a5ba35933 100644
--- a/win32/gen-version-items.py
+++ b/win32/gen-version-items.py
@@ -5,39 +5,72 @@
 # Author: Fan, Chun-wei
 # Date: July 25, 2019
 
+import argparse
 import os
+import re
 import sys
-import argparse
 
 from replace import replace_multi, replace
 
+def get_srcroot():
+    if not os.path.isabs(__file__):
+        path = os.path.abspath(__file__)
+    else:
+        path = __file__
+    dirname = os.path.dirname(path)
+    return os.path.abspath(os.path.join(dirname, '..'))
+
+def get_version(srcroot):
+    ver = {}
+    RE_VERSION = re.compile(r'^m4_define\(\[(gtk_\w+)\],\s*\[(\d+)\]\)')
+    with open(os.path.join(srcroot, 'configure.ac'), 'r') as ac:
+        for i in ac:
+            mo = RE_VERSION.search(i)
+            if mo:
+                ver[mo.group(1).upper()] = int(mo.group(2))
+    ver['GTK_VERSION'] = '%d.%d.%d' % (ver['GTK_MAJOR_VERSION'],
+                                       ver['GTK_MINOR_VERSION'],
+                                       ver['GTK_MICRO_VERSION'])
+    return ver
+
 def main(argv):
     srcdir = os.path.dirname(__file__)
     top_srcdir = os.path.join(srcdir, os.pardir)
     parser = argparse.ArgumentParser(description='Generate various items with version info')
-    parser.add_argument('--version', help='Version of the package',
-                        required=True)
-    parser.add_argument('--interface-age', help='Interface age of the package',
-                        required=True)
+    parser.add_argument('--version', help='Version of the package')
+    parser.add_argument('--interface-age', help='Interface age of the package')
     parser.add_argument('--source', help='Source file template to process',
                         required=True)
     parser.add_argument('--output', '-o', help='Output generated file location',
                         required=True)
     args = parser.parse_args()
-    gdk_sourcedir = os.path.join(top_srcdir, 'gdk')
-    version_parts = args.version.split('.')
+    version_info = get_version(get_srcroot())
+
+    # If version and/or interface-age were specified, use them,
+    # otherwise use the info we have from configure.ac.
+    if args.version is not None:
+        gtk_version = args.version
+    else:
+        gtk_version = version_info['GTK_VERSION']
+    if args.interface_age is not None:
+        interface_age = args.interface_age
+    else:
+        interface_age = version_info['GTK_INTERFACE_AGE']
+
+    version_parts = gtk_version.split('.')
     # (100 * gtk_minor_version + gtk_micro_version - gtk_interface_age)
     binary_age = (int(version_parts[1]) * 100) + int(version_parts[2])
-    lt_current = (int(version_parts[1]) * 100) + int(version_parts[2]) - int(args.interface_age)
-    lt_age = binary_age - int(args.interface_age)
+    lt_current = (int(version_parts[1]) * 100) + int(version_parts[2]) - int(interface_age)
+    lt_age = binary_age - int(interface_age)
 
     version_info_replace_items = {'@GTK_MAJOR_VERSION@':    version_parts[0],
                                   '@GTK_MINOR_VERSION@':    version_parts[1],
                                   '@GTK_MICRO_VERSION@':    version_parts[2],
                                   '@GTK_API_VERSION@':      '3.0',
-                                  '@GTK_VERSION@':          args.version,
+                                  '@GTK_VERSION@':          gtk_version,
                                   '@GTK_BINARY_AGE@':       str(binary_age),
-                                  '@GTK_INTERFACE_AGE@':    args.interface_age,
+                                  '@GTK_INTERFACE_AGE@':    str(interface_age),
+                                  '@GETTEXT_PACKAGE@':      'gtk30',
                                   '@LT_CURRENT_MINUS_AGE@': str(lt_current - lt_age)}
 
     replace_multi(args.source, args.output, version_info_replace_items)