2 files changed, 36 insertions, 0 deletions
diff --git a/solenv/bin/constructors.py b/solenv/bin/constructors.py
new file mode 100755
index 000000000000..1237da17142d
--- /dev/null
+++ b/solenv/bin/constructors.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+# Call $0 <file with a list of component file paths>
+# Dumps all the implementing constructors to stdout
+
+import xml.sax
+import os.path
+import sys
+
+constructors = list()
+
+class ComponentHandler(xml.sax.ContentHandler):
+    def startElement(self, tag, attributes):
+        if tag == "implementation" and "constructor" in attributes:
+            constructors.append(attributes["constructor"])
+
+if __name__ == "__main__":
+    parser = xml.sax.make_parser()
+    parser.setFeature(xml.sax.handler.feature_namespaces, 0)
+    parser.setContentHandler(ComponentHandler())
+    for filename in sys.argv[1:]:
+        with open(filename, "r") as components_listfile:
+            for line in components_listfile:
+                for component_filename in line.strip().split():
+                    parser.parse(component_filename)
+    constructors.sort()
+    print("\n".join(constructors))
diff --git a/solenv/bin/native-code.py b/solenv/bin/native-code.py
index d1d36140f0ab..7abb6c97ac4d 100755
--- a/solenv/bin/native-code.py
+++ b/solenv/bin/native-code.py
@@ -817,6 +817,7 @@ opts.add_option("-j", "--java-guard", action="store_true", help="include externa
 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")
 opts.add_option("-C", "--pure-c", action="store_true", help="do not print extern \"C\"", dest="pure_c", default=False)
+opts.add_option("-c", "--constructors", help="file with the list of constructors", dest="constructors_file")
 
 (options, args) = opts.parse_args()
 
@@ -830,6 +831,9 @@ if options.groups:
             else:
                 full_constructor_map[constructor] = True
 
+if not options.groups and options.constructors_file:
+    options.groups = factory_map.keys()
+
 # dict of all the factories that we need according to -g's
 full_factory_map = {}
 if options.groups:
@@ -846,6 +850,11 @@ if options.services:
     limit_rdb(options.services, full_factory_map, full_constructor_map)
     exit(0)
 
+if options.constructors_file:
+    with open(options.constructors_file, "r") as constructors:
+        for line in constructors:
+            full_constructor_map[line.strip()] = True
+
 print ("""/*
  * This is a generated file. Do not edit.
  *