native-code.py: Add a mode that allows filtering out services.rdb.

Limit only the constructors for the moment.

Limiting services.rdb will be useful for finding out what services are
actually missing when loading various document types.

Change-Id: Ifd6c2c0c43defac79d3eba1853347614ce7c0b46

1 files changed, 37 insertions, 6 deletions

diff --git a/solenv/bin/native-code.py b/solenv/bin/native-code.py
index e3874735e4ed..18a9899124a9 100755
--- a/solenv/bin/native-code.py
+++ b/solenv/bin/native-code.py
@@ -8,6 +8,9 @@
 from __future__ import print_function
 from optparse import OptionParser
 
+import sys
+import xml.etree.ElementTree as ET
+
 # foo_component_getFactory functions are split into groups, so that you could
 # choose e.g. 'core' and 'writer' functionality and through factory_map,
 # relevant function sections will be referenced in lo_get_factory_map().
@@ -183,12 +186,42 @@ constructor_map = {
     'writer' : writer_constructor_list,
     }
 
+# instead of outputting native-code.cxx, reduce the services.rdb according to
+# the constraints, so that we can easily emulate what services do we need to
+# add for a fully functional file loading / saving / ...
+def limit_rdb(services_rdb, full_constructor_map):
+    ET.register_namespace('','http://openoffice.org/2010/uno-components')
+    tree = ET.parse(services_rdb[0])
+    root = tree.getroot()
+
+    for component in root.findall('{http://openoffice.org/2010/uno-components}component'):
+        for implementation in component.findall('{http://openoffice.org/2010/uno-components}implementation'):
+            constructor = implementation.get('constructor')
+            if constructor != None and constructor not in full_constructor_map:
+                component.remove(implementation)
+
+    tree.write(services_rdb[0] + '.out', xml_declaration = True, method = 'xml')
+
+
+# do the actual work
 opts = OptionParser()
 opts.add_option("-j", "--java-guard", action="store_true", help="include external java functions", dest="java", default=False)
 opts.add_option("-g", "--group", action="append", help="group of implementations to make available in application", dest="groups")
+opts.add_option("-r", "--limit-rdb", action="append", help="instead of outputting native-code.cxx, limit the services.rdb only to the services defined by the groups", dest="services")
 
 (options, args) = opts.parse_args()
 
+# construct a list of all the contructors that we need according to -g's
+full_constructor_map = {}
+if options.groups:
+    for constructor_group in options.groups:
+        for constructor in constructor_map[constructor_group]:
+            full_constructor_map[constructor] = True
+
+if options.services:
+    limit_rdb(options.services, full_constructor_map)
+    exit(0)
+
 print ("""/*
  * This is a generated file. Do not edit.
  *   file generated by solenv/bin/native-code.py
@@ -215,9 +248,8 @@ if options.groups:
 
 print ('')
 if options.groups:
-    for constructor_group in options.groups:
-        for constructor in constructor_map[constructor_group]:
-            print ('void * '+constructor+'( void *, void * );')
+    for constructor in full_constructor_map.keys():
+        print ('void * '+constructor+'( void *, void * );')
 
 print ("""
 const lib_to_factory_mapping *
@@ -272,9 +304,8 @@ lo_get_constructor_map(void)
     static lib_to_constructor_mapping map[] = {""")
 
 if options.groups:
-    for constructor_group in options.groups:
-        for constructor in constructor_map[constructor_group]:
-            print ('        { "' +constructor+ '", ' +constructor+ ' },')
+    for constructor in full_constructor_map.keys():
+        print ('        { "' +constructor+ '", ' +constructor+ ' },')
 
 print ("""
         { 0, 0 }