Boa Language and Infrastructure User Forum

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Welcome to the Boa forum! Boa is an infrastructure for mining software repositories at a massive scale. Boa consists of a domain-specific language, its compiler and data-updating tools, terabytes (and growing) of raw data from open source repositories that contains several hundred thousand open source projects, a backend based on map-reduce to effectively analyze this dataset, a compute cluster, and a web-based front-end for writing analysis programs. Feel free to explore the infrastructure and use this forum to post your questions and concerns. Happy mining!

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Jan 6

Envisioning Boa 2.0 Workshop

Next week, on Thursday January 14, we will hold a virtual Envisioning Boa 2.0 Workshop. Boa has

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Envisioning Boa 2.0 Workshop

Next week, on Thursday January 14, we will hold a virtual Envisioning Boa 2.0 Workshop. Boa has

Jan 6

manu audi, Robert Dyer5

4/6/20

mining aws serverless repository

Thanks for your swift reply again and helping me out. On Monday, April 6, 2020 at 9:56:10 PM UTC+2,

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mining aws serverless repository

Thanks for your swift reply again and helping me out. On Monday, April 6, 2020 at 9:56:10 PM UTC+2,

4/6/20

Mostafa Shokrof, Robert Dyer4

10/20/19

I am receiving a blank compilation error.

Hi Robert, Thanks for the fast reply and for solving my problem. I submitted a bug on github(https://

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I am receiving a blank compilation error.

Hi Robert, Thanks for the fast reply and for solving my problem. I submitted a bug on github(https://

10/20/19

Robert Dyer, Carlos Eduardo Dantas6

10/15/19

NEW 2019-10 dataset - with program analysis features!

Hi Carlos, I think it's all working now. At least for your job, I resubmitted and now see output.

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NEW 2019-10 dataset - with program analysis features!

Hi Carlos, I think it's all working now. At least for your job, I resubmitted and now see output.

10/15/19

Premkumar Devanbu, Robert Dyer2

10/10/19

Why is the def needed in foreach (i: int; def(p.programming_languages[i]))

Inside a quantifier (such as foreach), the expression on the RHS is a boolean condition that is

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Why is the def needed in foreach (i: int; def(p.programming_languages[i]))

Inside a quantifier (such as foreach), the expression on the RHS is a boolean condition that is

10/10/19

Stratos K., Robert Dyer6

9/16/19

Get the multilanguage projects correctly

Just to keep you in the loop: issue report (which I just fixed in master branch): https://github.com/

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Get the multilanguage projects correctly

Just to keep you in the loop: issue report (which I just fixed in master branch): https://github.com/

9/16/19

May Sayed, Robert Dyer2

9/12/19

Retrieving methods statements using a certain API

Hi May, I think the main problem is you are trying to output an array, and none of the aggregators

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Retrieving methods statements using a certain API

Hi May, I think the main problem is you are trying to output an array, and none of the aggregators

9/12/19

malw...@oregonstate.edu, Yijia Huang3

5/5/19

Dataset for 2018

Hi Yijia, Thank you so much for the information. Eagerly waiting for the new dataset. Regards,

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Dataset for 2018

Hi Yijia, Thank you so much for the information. Eagerly waiting for the new dataset. Regards,

5/5/19

Yijia Huang, Srilakshmi Sripathi2

4/3/19

Re: [Boa Users] Help needed with Boa ASTRoot imports attribute

Thank you so much for detailed information, Yijia. This is very helpful. On Wed, Apr 3, 2019, 2:31 AM

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Re: [Boa Users] Help needed with Boa ASTRoot imports attribute

Thank you so much for detailed information, Yijia. This is very helpful. On Wed, Apr 3, 2019, 2:31 AM

4/3/19

Yiming Tang, Robert Dyer5

1/23/19

Question about parsing ASTs using Boa

Dear Robert, Thank you so much! Best regards, Yiming From: boa-user@googlegroups.com <boa-user@

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Question about parsing ASTs using Boa

Dear Robert, Thank you so much! Best regards, Yiming From: boa-user@googlegroups.com <boa-user@

1/23/19

Eduardo Campos, Robert Dyer2

1/16/19

Code Search in Boa Language

Hi Eduardo, At the moment, Boa does not include direct support for finding type-4 code clones. Boa

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Code Search in Boa Language

Hi Eduardo, At the moment, Boa does not include direct support for finding type-4 code clones. Boa

1/16/19

malw...@oregonstate.edu, … Hoan Nguyen5

11/29/18

Mining Python Projects

Hi Malinda, Yes, you can write a Boa query to get Python projects with all metadata. I believe there

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Mining Python Projects

Hi Malinda, Yes, you can write a Boa query to get Python projects with all metadata. I believe there

11/29/18

Eduardo Campos, Robert Dyer3

10/19/18

How to list all Java methods by class?

Hi Robert, Thanks for your attention... I already have a basic knowledge in Boa language but this

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How to list all Java methods by class?

Hi Robert, Thanks for your attention... I already have a basic knowledge in Boa language but this

10/19/18

Eduardo Campos, Robert Dyer2

9/27/18

Forked projects in GitHub Dataset?

Hi Eduardo, The projects in the dataset should all be non-forks. We filtered all forks, Java or not.

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Forked projects in GitHub Dataset?

Hi Eduardo, The projects in the dataset should all be non-forks. We filtered all forks, Java or not.

9/27/18

Andrew Head, Ganesha Upadhyaya Belle4

4/13/18

Mining tokens before and after variable uses and declarations?

Unfortunately checking if an expression has subexpressions will not work. You will have to do it

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Mining tokens before and after variable uses and declarations?

Unfortunately checking if an expression has subexpressions will not work. You will have to do it

4/13/18

Shaikh Ismail, Robert Dyer4

2/5/18

Contents of try catch block

Thanks Robert! On Sun, Feb 4, 2018 at 11:41 AM, Robert Dyer <psybers@gmail.com> wrote: Hi

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Contents of try catch block

Thanks Robert! On Sun, Feb 4, 2018 at 11:41 AM, Robert Dyer <psybers@gmail.com> wrote: Hi

2/5/18

Eduardo Campos, … Robert Dyer4

12/21/17

Fully Qualified Name

Hi Eduardo, As Aline pointed out with the current datasets you have to manually track the namespace

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Fully Qualified Name

Hi Eduardo, As Aline pointed out with the current datasets you have to manually track the namespace

12/21/17

Rajan, Hridesh [COM S]

11/16/17

Re: Meaning of BOA

Dear Vinicius, Boa is not actually an acronym, it is a name meant to be written like Boa. In May 2012

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Re: Meaning of BOA

Dear Vinicius, Boa is not actually an acronym, it is a name meant to be written like Boa. In May 2012

11/16/17

na...@northern.edu.pk, Rajan, Hridesh [COM S]4

9/10/17

Implementation of Design Pattern(s) by a Project

Hi, Sir, I hope, You are fine.I have implemented MOOD(Metrics for Object Oriented Design) algorithm

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Implementation of Design Pattern(s) by a Project

Hi, Sir, I hope, You are fine.I have implemented MOOD(Metrics for Object Oriented Design) algorithm

9/10/17

na...@northern.edu.pk, Robert Dyer2

8/20/17

Counting number of inherited method per project

Hi Nawaz, First, we have an example query that might help you: http://boa.cs.iastate.edu/examples/

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Counting number of inherited method per project

Hi Nawaz, First, we have an example query that might help you: http://boa.cs.iastate.edu/examples/

8/20/17

7/14/17

No output for jobs submitted via the client API

I just double checked with another Boa script. Here is my observation. I was able to get some output

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No output for jobs submitted via the client API

I just double checked with another Boa script. Here is my observation. I was able to get some output

7/14/17

Marcus Adriano, Robert E Dyer2

6/7/17

Hi Marcus, Thank you for your interest in Boa! We have been very busy adding new features to the

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Hi Marcus, Thank you for your interest in Boa! We have been very busy adding new features to the

6/7/17

Hoan Nguyen, Robert E Dyer2

3/21/17

Re: [Boa Users] Difference and match(string, string) and string == string

Hoan is exactly right. If the filename is actually 'SomeAndroidManifest.xml' then match()

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Re: [Boa Users] Difference and match(string, string) and string == string

Hoan is exactly right. If the filename is actually 'SomeAndroidManifest.xml' then match()

3/21/17

otmarjr, … Robert E Dyer7

3/16/17

Mining sequence of method calls

Hello Robert, Ok, I'll give it a try with Boa. Glad to hear it supports such use cases. Best

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Mining sequence of method calls

Hello Robert, Ok, I'll give it a try with Boa. Glad to hear it supports such use cases. Best

3/16/17

Maurício Aniche, Robert E Dyer2

2/27/17

Updating the dataset

Hi Mauricio, Yes! We were hoping to get a dataset out relatively soon, which should include data from

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Updating the dataset

Hi Mauricio, Yes! We were hoping to get a dataset out relatively soon, which should include data from

2/27/17

12/20/16

Re: [Boa Users] Maps of maps

This bug is now fixed. It should be fixed in any future datasets, and I back-ported it to the GitHub

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Re: [Boa Users] Maps of maps

This bug is now fixed. It should be fixed in any future datasets, and I back-ported it to the GitHub

12/20/16

Rajan, Hridesh [COM S]

12/13/16

Re: downloading projects

Dear Ali, Thank you for your interest in Boa. Unfortunately, Boa doesn't have any mechanism to

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Re: downloading projects

Dear Ali, Thank you for your interest in Boa. Unfortunately, Boa doesn't have any mechanism to

12/13/16

Pablo Loyola, Robert E Dyer2

11/28/16

Obtaining source code

Hi Pablo, At the moment there is no method to obtain the actual source code from Boa's dataset.

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Obtaining source code

Hi Pablo, At the moment there is no method to obtain the actual source code from Boa's dataset.

11/28/16

Matías Waterloo, … Robert E Dyer4

11/28/16

Repository Tags

Hi Carlos, Unless I am mistaken, I think we actually did not store the Git tags into our dataset! It

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Repository Tags

Hi Carlos, Unless I am mistaken, I think we actually did not store the Git tags into our dataset! It

11/28/16

11/28/16

Expression Attributes

Hi Andrew, I am sorry for delay in response. My answers to your questions are inlined below. Hello,

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Expression Attributes

Hi Andrew, I am sorry for delay in response. My answers to your questions are inlined below. Hello,

11/28/16

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