deep-jit-inconsistency-detection

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deep-jit-inconsistency-detection

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Deep Just-In-Time Inconsistency Detection Between Comments and Source Code: Artifact

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# Deep Just-In-Time Inconsistency Detection Between Comments and Source Code

**Code and datasets for our AAAI-2021 paper "Deep Just-In-Time Inconsistency Detection Between Comments and Source Code"**
which can be found [here](https://arxiv.org/pdf/2010.01625.pdf).

If you find this work useful, please consider citing our paper:

```
@inproceedings{PanthaplackelETAL21DeepJITInconsistency,
  author = {Panthaplackel, Sheena and Li, Junyi Jessy and Gligoric, Milos and Mooney, Raymond J.},
  title = {Deep Just-In-Time Inconsistency Detection Between Comments and Source Code},
  booktitle = {AAAI},
  pages = {427--435},
  year = {2021},
}
```
The code base shares components with our prior work called [Learning to Update Natural Language Comments Based on Code Changes](https://github.com/panthap2/LearningToUpdateNLComments).

Download data from [here](https://drive.google.com/drive/folders/1heqEQGZHgO6gZzCjuQD1EyYertN4SAYZ?usp=sharing). Download additional model resources from [here](https://drive.google.com/drive/folders/1cutxr4rMDkT1g2BbmCAR2wqKTxeFH11K?usp=sharing). Edit configurations in `constants.py` to specify data, resource, and output locations.

**Inconsistency Detection:**

*SEQ(C, Medit) + features*
```
python3 run_comment_model.py --task=detect --attend_code_sequence_states --features --model_path=detect_attend_code_sequence_states_features.pkl.gz --model_name=detect_attend_code_sequence_states_features
```

*GRAPH(C, Tedit) + features*
(The GGNN used for this approach is derived from [here](https://github.com/pcyin/pytorch-gated-graph-neural-network/blob/master/gnn.py).)
```
python3 run_comment_model.py --task=detect --attend_code_graph_states --features --model_path=detect_attend_code_graph_states_features.pkl.gz --model_name=detect_attend_code_graph_states_features
```

*HYBRID(C, Medit, Tedit) + features*
```
python3 run_comment_model.py --task=detect --attend_code_sequence_states --attend_code_graph_states --features --model_path=detect_attend_code_sequence_states_attend_code_graph_states_features.pkl.gz --model_name=detect_attend_code_sequence_states_attend_code_graph_states_features
```

To run inference on a detection model, add `--test_mode` to the command used to train the model.

**Combined Detection + Update:**

*Update w/ implicit detection*
```
python3 run_comment_model.py --task=update --features --model_path=update_features.pkl.gz --model_name=update_features
```

To run inference, add `--test_mode --rerank` to the command used to train the model.

*Pretrained update + detection*
```
python3 run_comment_model.py --task=update --features --positive_only --model_path=update_features_positive_only.pkl.gz --model_name=update_features_positive_only
```

One of the detection models should also be trained, following instructions provided in the "Inconsistency Detection" section above. To run inference on the update model, add `--test_mode --rerank` to the command used to train the model. Inference on the detection model should also be done as instructed in the "Inconsistency Detection" section.

*Jointly trained update + detection*

To train, simply replace `--task=detect` with `--task=dual` in the configurations given for "Inconsistency Detection." For inference, additionally include  `--test_mode --rerank`.

**Displaying metrics:**

To display metrics for the full test set as well as the cleaned test sample, run:

```
python3 display_scores.py --detection_output_file=[PATH TO DETECTION PREDICTIONS] --update_output_file=[PATH TO UPDATE PREDICTIONS]
```

For evaluating in the pretrained update + detection setting, both filepaths are required. For all other settings, only one should be specified.

**AST Diffing:**

The AST diffs were built using Java files provided by [Pengyu Nie](https://github.com/pengyunie). First, download `ast-diffing-1.6-jar-with-dependencies.jar` from [here](https://drive.google.com/file/d/1JVfIfJoDDSFBaFOhK18UsBOmC39z03am/view?usp=sharing). Then, go to `data_processing/ast_diffing/python` and run:

```
python3 xml_diff_parser.py --old_sample_path=[PATH TO OLD VERSION OF CODE] --new_sample_path=[PATH TO NEW VERSION OF CODE] --jar_path=[PATH TO DOWNLOADED JAR FILE]
```

You can see an example by running:

```
python3 xml_diff_parser.py --old_sample_path=../code_samples/old.java  --new_sample_path=../code_samples/new.java --jar_path=[PATH TO DOWNLOADED JAR FILE]
```

**More Data Details:**

We have the SHAs corresponding to a sample of the data (~9k examples) available [here](https://drive.google.com/file/d/1YU8mPwIXFTKXGYV17lOzyeZeH4xOjnuT/view?usp=drive_link). The data is formatted as a dictionary, with keys corresponding to example id (i.e., the "id" field of each of the examples in our released data). The values correspond to the SHAs associated with that example, with the "before" commit being first and the "after" commit being second. The change associated with each example was extracted by doing ("git diff <before commit> <after commit>"). We have also made the SHAs corresponding to a larger pool of unfiltered data available [here](https://drive.google.com/file/d/1Bh3I4SUpKTXB6CmJTiwVCxlQqofBVLhv/view?usp=drive_link). The data format is identical.

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