_reports: Add anctaritca's GSoC report

Author: saksham189

_reports/saksham.md

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+---
+layout: report
+permalink: /GSoC/2018/StatusReport/SakshamBansal
+student: Saksham Bansal
+organisation: coala
+organisation_link: https://coala.io
+report_year: 2018
+project: Improve installation of coala and coala-bears
+project_link: https://summerofcode.withgoogle.com/projects/#4642118669172736
+tarball: https://rawgit.com/anctartica/GSoC-Report/master/work.tar.gz
+sha256sum: f413963583c7e18a5ccb42f21405290edcf79a0f8c61106ff21671efe0b98238
+mentors: >
+ [Muhammad Kaisar Arkhan](https://github.com/yukiisbored),
+ [Matt Bodenhamer](https://github.com/mbodenhamer),
+ [Andrey Safonov](https://github.com/xferra)
+phase:
+ - Bonding: https://gitlab.com/coala/GSoC/GSoC-2018/milestones/10
+ - Phase 1: https://gitlab.com/coala/GSoC/GSoC-2018/milestones/11
+ - Phase 2: https://gitlab.com/coala/GSoC/GSoC-2018/milestones/12
+ - Phase 3: https://gitlab.com/coala/GSoC/GSoC-2018/milestones/13
+bio: >
+ I'm a sophomore year student studying Computer Science at Netaji Subhash
+ Institute of Technology, Dehli. I am always looking for opportunities to
+ put my programming skill to good use by contributing to open source which also
+ allows me to improve my own skill.
+social:
+ - GitHub:
+    - username: anctartica
+    - link: https://github.com/anctartica
+ - GitLab:
+    - username: anctartica
+    - link: https://gitlab.com/anctartica
+ - Gitter:
+    - username: anctartica
+    - link: https://gitter.im/anctartica
+ - OpenHub:
+    - username: anctartica
+    - link: https://www.openhub.net/accounts/anctartica
+email: [email protected]
+blog: https://medium.com/@sakshamb.co.17
+activity:
+ - 1:
+    - repo: cEPs
+    - link: https://github.com/coala/cEPs/commit/ca27c58eef778fd7b3aff3b874b0e58f56e4a559
+    - details: >
+        Create a proposal regarding the project.
+ - 2:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/b9f35115b42b105c550cf53c44a01f1257680697
+    - details: >
+        Add appveyor CI.
+ - 3:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/1e2d7170f4f9eb232c48f4d372d957b3c423d05c
+    - details: >
+       Use dependency management master
+ - 4:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/5e8cffc70834ab7263316a7e1648c037b52e2206
+    - details: >
+       Fix docopt usage pattern.
+ - 5:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/aa5e957018331db0d09099963bad1c2b86d147c5
+    - details: >
+       Fix incorrect behaviour
+ - 6:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/437a8e527d2b64d471d3022996ddf24ab754cb5a
+    - details: >
+       Clean up code required for 100% coverage
+ - 7:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/551516fcd5aac2bf46615d6a7827a7a9e8e7505a
+    - details: >
+       Add unittests for 100% coverage
+ - 8:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/df1ffac4e49eead45e56e8649d1378f62330a2a4
+    - details: >
+       Mobanise setup.cfg
+ - 9:
+    - repo: cib
+    - link: https://gitlab.com/coala/cib/commit/139490a906645afb704aa083dfbc26727c2a412f
+    - details: >
+       Allow showing multiple bears
+ - 10:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/3f0557bfe4fca5e9bf99ae0226b091f19f5589ab
+    - details: >
+       Remove test_pyversion
+ - 11:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/943e54125c7d354098ee11370251b0eec4ac81ef
+    - details: >
+       Add variable for cache dir on appveyor
+ - 12:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/a7b8f2ff0f3e68bd56afa98a12d88054d6080ab2
+    - details: >
+       Add option for Python 3.6 jobs on all repos
+ - 13:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/dd81996f93b3a48efe18b907fc2190f40ee11bdd
+    - details: >
+       Add template for init file for exporting version
+ - 14:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/8eaac28f36ed8c48ef2462268b764c7d0f484346
+    - details: >
+       Remove brackets around string with one item in setup.py template
+ - 15:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/c3bfe9a235613fd5701cd55f3e2fc5ea4f9f761c
+    - details: >
+       Run coala static code analysis from Appveyor
+ - 16:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/b10ecd5acdfd1c6fc0cb64a696ca8b40ecc8abc2
+    - details: >
+       Pin setuptool to 21 for supporting environment markers
+ - 17:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/7aeb5b7c197cf3d2f5d7a6ed947bed8a1fcf7078
+    - details: >
+       Use coala-bears master for coala analysis on Appveyor
+ - 18:
+    - repo: coala-mobans
+    - link: https://gitlab.com/coala/mobans/commit/431d06caaf60eb45d36688244ed110f90f6a58ec
+    - details: >
+       Create coveragerc template to resolve a bug with coverage on cib
+ - 19:
+    - repo: coala-utils
+    - link: https://gitlab.com/coala/coala-utils/commit/43c81871476e14ce0d777129bff8cdfc557be342
+    - details: >
+       Remove error handling on import for complete test coverage on Appveyor build
+ - 20:
+    - repo: coala-utils
+    - link: https://gitlab.com/coala/coala-utils/commit/18c91bb2824e6bcb09de14af3ae38ec279b8d9e3
+    - details: >
+       use __all__ for exports to prevent failing coala --ci check
+ - 21:
+    - repo: coala-utils
+    - link: https://gitlab.com/coala/coala-utils/commit/25cc5a3178586a1d51d0385eca12a176914a0b8c
+    - details: >
+       Use appveyor template for coala-utils
+ - 22:
+    - repo: coala-bears
+    - link: https://github.com/coala/coala-bears/commit/c35a2ed04935fd7665514e6af7828f1bfd931a03
+    - details: >
+       Improve and cleanup script for generating bear requirements and generate cabal requirements
+ - 23:
+    - repo: coala-bears
+    - link: https://github.com/coala/coala-bears/commit/26b696969dd38ca1a1ab91163e0154f6c905e252
+    - details: >
+       Move the generate_package script from the coala-bears package to .ci directory
+ - 24:
+    - repo: coala-bears
+    - link: https://github.com/coala/coala-bears/commit/efdfbc1cec98db76a5bb2c75fbfa414686be4db8
+    - details: >
+       Use CabalRequirement for HaskellLintBear
+ - 25:
+    - repo: coala-bears
+    - link: https://github.com/coala/coala-bears/commit/e62d16f8315e4dcd10c9c57af3ab3e5973b10d73
+    - details: >
+       Add language setting for ESLintBear using various plugins for eslint
+ - 26:
+    - repo: coala-bears
+    - link: https://gitlab.com/coala/package_manager/commit/a786450e5cdfd3172caf86c60786c0d1ce6ee10f
+    - details: >
+       Add GherkinLintBear
+ - 27:
+    - repo: coala-bears
+    - link: https://gitlab.com/coala/package_manager/commit/868afe0dcdf6ab0c964f1ce72152fedb132f44cb
+    - details: >
+       Add BashateBear
+ - 28:
+    - repo: dependency_management
+    - link: https://gitlab.com/coala/package_manager/commit/75b3c37f7ffd7b6c9f693d131bf4f627fd95373d
+    - details: >
+       Add PlatformRequirement class for system specific package managers
+ - 29:
+    - repo: dependency_management
+    - link: https://gitlab.com/coala/package_manager/commit/a786450e5cdfd3172caf86c60786c0d1ce6ee10f
+    - details: >
+       Return exitcode after running the install command
+ - 30:
+    - repo: dependency_management
+    - link: https://gitlab.com/coala/package_manager/commit/868afe0dcdf6ab0c964f1ce72152fedb132f44cb
+    - details: >
+       Add CabalRequirement for backwards compatibility
+ - 31:
+    - repo: dependency_management
+    - link: https://gitlab.com/coala/package_manager/commit/995b50ba1861296d333442be9e16ba2b1c4a47b6
+    - details: >
+       Run pip as python module
+ - 32:
+    - repo: bear-install-playbook
+    - link: https://gitlab.com/coala/bear-install-playbook/commit/7ba1c3ef9c29dc58a1c5b0109328317f3b0924df
+    - details: >
+       Add playbook for installing individual bears
+ - 33:
+    - repo: bear-install-playbook
+    - link: https://gitlab.com/coala/bear-install-playbook/commit/1b288844aa157ff4e8c80a3179c5d58163a2719f
+    - details: >
+       Test playbook using docker + Travic CI
+ - 34:
+    - repo: bear-install-playbook
+    - link: https://gitlab.com/coala/bear-install-playbook/commit/7dee7591927c0883269f5741102b90bfb93f84ff
+    - details: >
+       Add instructions on using playbook
+ - 35:
+    - repo: bear-install-playbook
+    - link: https://gitlab.com/coala/bear-install-playbook/commit/c82a9737c6852d09f681a7fc98a0f094dd38194b
+    - details: >
+       Add coafile for running static code analysis by coala
+---
+
+### Improve Installation of coala and coala-bears
+
+#### Work Done
+
+coala uses a `DistributionRequirement` class to represent dependencies
+from system specific package managers such as apt, yum, dnf. This project
+breaks the class into multiple subclasses one for each package manager that
+all inherit from the base `PlatformRequirement` class and deprecates
+the older class. Additionaly, the project added a repository for
+Ansible playbooks that allow to install individual bears for coala.
+Lastly, the project involved fixing and improving the exiting cib install bears
+tool which uses the dependency management API by adding 100% test coverage.
+
+**Major tasks of the project:**
+
+1. Create a separate repository `bear-install-playbook` for Ansible playbook
+   that would allow to install individual bear and their dependencies.
+2. Testing the playbook using docker and Travis CI.
+3. Improving the existing cib bear install tool and cleaning up the code.
+4. Adding 100% test coverage for the cib tool.
+5. Improve the existing templates in mobans such as by running ci check
+   from the Appveyor template.
+6. Add a PlatformRequirement class for system specific package managers
+   and deprecate the existing DistributionRequirement class.
+7. Move the generate_package script from bears.
+8. Improving the exiting generate_requirements script and allow
+   it to generate CabalRequiremnents from bears as well.
+
+#### Challenges
+
+The major challenge of the project was trying to test the Ansible
+playbook by installing the dependencies of the bear inside docker on Travis
+CI. It was very difficult to properly setup some of the package managers inside
+the docker container and I had to run the Travis build more than a 100 times.
+Eventually, I ended using Ansible roles that could setup the package managers
+on the host machine which made it a lot easier.
+
+#### Future prospects of the projects
+
+There is a lot more functionality that can be used from Ansible. Ansible allows
+us to create roles that run various tasks and define variables to complete a task
+for numerous platforms. These roles can be uploaded to Ansible-galaxy. We could
+create roles for installing certain bears that require different installation
+instruction for each distribution. There could be a role that could create a
+virtualenv with coala setup and install an appropritate python version for
+multiple platforms if it is not already there. Ansible-galaxy already has
+a lot of roles that can setup various package managers for multiple
+distributions.