Created by: chenwhql

PR types

Others

PR changes

Others

Describe

为了让大家更高效的修改余量不合规报错，增加grep_invalid_enforce.sh脚本，便于轻松地找到相应目录或文件中尚存的不合规报错，使用简介及示例如下：

This script is used to grep invalid PADDLE checks by directory or file in the paddle/fluid/,
  the result show all invalid PADDLE checks in specified directory or file.

Usage: 
  - bash grep_invalid_enforce.sh [target directory or file] (run in tools directory)
      - The default check path is paddle/fluid/operators

Result Examples:
1. grep invalid PADDLE checks in directory

    - Command: /work/paddle/tools {develop} bash grep_invalid_enforce.sh ../paddle/fluid/imperative 
    - Results:
        - paddle/fluid/imperative/gradient_accumulator.cc
        PADDLE_ENFORCE_EQ(dst_tensor->numel() == numel, true,
                            "dst_numel %d vs. src_numel %d", dst_tensor->numel(),
                            numel);

        - paddle/fluid/imperative/nccl_context.cc
        PADDLE_ENFORCE_EQ(addr.size(), 2UL,
                            "The endpoint should contain host and port: %s", ep);
        PADDLE_THROW("create server fd failed");
        PADDLE_THROW("set socket opt failed");
        PADDLE_THROW("binding failed on ep: %s", ep);
        PADDLE_THROW("listen on server fd failed");
        PADDLE_THROW("accept the new socket fd failed");
        PADDLE_THROW("reading the ncclUniqueId from socket failed");
        PADDLE_ENFORCE_EQ(addr.size(), 2UL,
                            "The endpoint should contain host and port: %s", ep);
        PADDLE_THROW("create socket failed");
        PADDLE_THROW("invalied address: %s", ep);

        - paddle/fluid/imperative/jit/program_desc_tracer.cc
        PADDLE_ENFORCE_NOT_NULL(new_var);
        PADDLE_ENFORCE_EQ(inner_var.IsInitialized(), true);
        PADDLE_THROW("Not support variable type %s",
                        framework::ToTypeName(inner_var.Type()));

2. grep invalid PADDLE checks in file

    - Command: /work/paddle/tools {develop} bash grep_invalid_enforce.sh ../paddle/fluid/pybind/reader_py.cc
    - Results:
        - paddle/fluid/pybind/reader_py.cc
        PADDLE_THROW(
                    "Place cannot be CUDAPlace when use_double_buffer is False");
        PADDLE_ENFORCE_NOT_NULL(exceptions_[i]);
        PADDLE_ENFORCE_EQ(status, Status::kException);
        PADDLE_ENFORCE_EQ(status, Status::kSuccess);