Google Summer of Code 2019/Increase archive coverage

Title: Increase archive coverage
Description: As Software Heritage works on archiving and sharing source code, one of the major tasks is to ingest the latest source code available in the database from time to time and from all the possible sources where you can fetch the source code using listers and ingest them using loaders. Listers are components that crawl the APIs of software forges (e.g., Bitbucket, Gitorious, Sourceforge, ...) and return a list of the software available in it whereas Loaders take a bundle of software (tarball, Git repository ...) and load it into Software Heritage, by adapting it so that it matches the archive data model. The goal of this project is to increase the archive coverage by making listers and loaders for different websites that which stores source code, so that Software Heritage can fetch as much source code as possible and store it in the database to preserve it for future generations.
Student: Archit Agrawal
- Forge activity
Mentors:
- Nicolas Dandrimont
- Antoine R. Dumont
Experience:
What I did:
- Listers:
  - Completed and merged
  - Did research on the methods that could be used to make following listers and made an implementation plan for the same
  - Add tests to PyPI Lister
  - Refractor base tests for listers
  - Add documentation on *How to run a new lister*
- Loaders:
  - Base Loader
  - GNU Loader

Learnings:
- How to work on a huge codebase
- How to plan and design before jumping to code
- Writing clean and well-commented code
- How are projects are made in the industry different from making projects in college(Spoiler Alert: A lot)
- Multiple language integration in a python library (Used in CRAN Lister)
- Different programming methodologies explained to me by my mentors(eg TDD)
- Working on git and forge
- Docker

Links