Make the gen_doc script support paddle api version 2.0 (#1944)

* change gen_doc

* change gen_doc

doc/fluid/api/gen_doc.py

@@ -19,6 +19,7 @@ import types
 import os
 import contextlib
 import paddle.fluid as fluid
+import paddle.tensor as tensor
 
 def parse_arg():
     parser = argparse.ArgumentParser()
@@ -29,8 +30,11 @@ def parse_arg():
         '--module_prefix', type=str, help='Generate the prefix of module')
     parser.add_argument(
         '--output', type=str, help='Output file or output directory for output rst')
+    parser.add_argument(
+        '--output_name', type=str, help='Output file or output directory for output rst')
     parser.add_argument(
         '--to_multiple_files', type=bool, default=False, help='Whether to separate to multiple files')
+
     return parser.parse_args()
 
     def print_item(self, name):
@@ -140,7 +144,7 @@ class DocGenerator(object):
         self.stream.write(".. _api_{0}_{1}:\n\n".format("_".join(
             self.module_prefix.split(".")), name))
 
-def generate_doc(module_name, module_prefix, output, to_multiple_files):
+def generate_doc(module_name, module_prefix, output, output_name, to_multiple_files):
     if module_name == "":
         module_name = None
 
@@ -150,22 +154,22 @@ def generate_doc(module_name, module_prefix, output, to_multiple_files):
     gen = DocGenerator()
 
     if module_name is None:
-        gen.module = fluid
-        gen.module_name = 'fluid'
+        gen.module = eval(output_name)
+        gen.module_name = str(output_name)
     else:
-        gen.module = fluid
+        gen.module = eval(output_name)
         for each_module_name in module_name.split('.'):
             if not hasattr(gen.module, each_module_name):
                 raise ValueError("Cannot find fluid.{0}".format(module_name))
             else:
                 gen.module = getattr(gen.module, each_module_name)
 
-        gen.module_name = "fluid." + module_name
+        gen.module_name = output_name + "." + module_name
 
     if module_prefix is None:
         gen.module_prefix = gen.module_name
     else:
-        gen.module_prefix = "fluid." + module_prefix
+        gen.module_prefix = output_name + "." + module_prefix
 
     dirname = output if to_multiple_files else os.path.dirname(output) 
     if len(dirname) > 0 and (not os.path.exists(dirname) or not os.path.isdir(dirname)): 
@@ -199,7 +203,7 @@ def generate_doc(module_name, module_prefix, output, to_multiple_files):
 
 def main():
     args = parse_arg()
-    generate_doc(args.module_name, args.module_prefix, args.output, args.to_multiple_files)
+    generate_doc(args.module_name, args.module_prefix, args.output, args.output_name, args.to_multiple_files)
 
 
 if __name__ == '__main__':

doc/fluid/api/gen_doc.sh

 #!/bin/bash
 
-#for module in nn
-#do
-#  python gen_doc.py --module_name layers.${module} --module_prefix layers --output layers/${module} --to_multiple_files True
-#done
-
-#for module in control_flow nn io ops tensor learning_rate_scheduler detection metric_op
-#do
-#  python gen_doc.py --module_name layers.${module} --module_prefix layers --output layers/${module}.rst
-#done 
-
 for module in layers dataset clip metrics executor initializer io nets optimizer profiler regularizer transpiler backward profiler unique_name dygraph
 do
-  python gen_doc.py --module_name ${module} --module_prefix ${module} --output ${module} --to_multiple_files True
+  python gen_doc.py --module_name ${module} --module_prefix ${module} --output ${module} --output_name fluid --to_multiple_files True
   python gen_module_index.py ${module}  fluid.${module}
 done
 
-python gen_doc.py --module_name "" --module_prefix "" --output fluid --to_multiple_files True
+python gen_doc.py --module_name "" --module_prefix "" --output fluid --output_name fluid --to_multiple_files True
 python gen_module_index.py fluid  fluid
 
 python gen_index.py