_reports: Add anctartica's GSoC report

Author: saksham189

_reports/saksham.md

@@ -0,0 +1,309 @@
+---
+categories:
+  - GSoC
+  - 2018
+  - StatusReport
+report_year: 2018
+date: 2018-08-12
+student: Saksham Bansal
+organisation: coala
+organisation_link: https://coala.io
+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: 3f2f7637e08a669ceff1dc701f3d7c22df22b301e6b59957650dccd104008863
+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/a18ac700bb4d7dbfe24c2103697d07fdfe00656d
+      - details: >
+         Use pragma no cover due to bug with coverage
+  - 8:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/7b5284dfdaf6c23c7573e570c806eba4fde368a5
+      - details: >
+         Fix bug in code for complete coverage
+  - 9:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/551516fcd5aac2bf46615d6a7827a7a9e8e7505a
+      - details: >
+         Add unittests for 100% coverage
+  - 10:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/df1ffac4e49eead45e56e8649d1378f62330a2a4
+      - details: >
+         Mobanise setup.cfg
+  - 11:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/139490a906645afb704aa083dfbc26727c2a412f
+      - details: >
+         Allow showing multiple bears
+  - 12:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/403056e7302097aca59f97a3ebbe30c13558bce6
+      - details: >
+         Remove useless if conditions
+  - 13:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/7a929ef94ea2ab88bcce40c9e079adf3e9258127
+      - details: >
+         Ignore build dir
+  - 14:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/13995e3afef600dcc880dc23a83826d9695536f8
+      - details: >
+         Remove unused import
+  - 15:
+      - repo: cib
+      - link: https://gitlab.com/coala/cib/commit/93c5197af4a713b9579107e4725ea5de4cb6d5f3
+      - details: >
+         Remove call_without_output
+  - 16:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/3f0557bfe4fca5e9bf99ae0226b091f19f5589ab
+      - details: >
+         Remove test_pyversion
+  - 17:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/943e54125c7d354098ee11370251b0eec4ac81ef
+      - details: >
+         Add variable for cache dir on appveyor
+  - 18:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/a7b8f2ff0f3e68bd56afa98a12d88054d6080ab2
+      - details: >
+         Add option for Python 3.6 jobs on all repos
+  - 19:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/dd81996f93b3a48efe18b907fc2190f40ee11bdd
+      - details: >
+         Add template for init file for exporting version
+  - 20:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/8eaac28f36ed8c48ef2462268b764c7d0f484346
+      - details: >
+         Remove brackets around string with one item in setup.py template
+  - 21:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/c3bfe9a235613fd5701cd55f3e2fc5ea4f9f761c
+      - details: >
+         Run coala static code analysis from Appveyor
+  - 22:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/b10ecd5acdfd1c6fc0cb64a696ca8b40ecc8abc2
+      - details: >
+         Pin setuptool to 21 for supporting environment markers
+  - 23:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/7aeb5b7c197cf3d2f5d7a6ed947bed8a1fcf7078
+      - details: >
+         Use coala-bears master for coala analysis on Appveyor
+  - 24:
+      - repo: coala-mobans
+      - link: https://gitlab.com/coala/mobans/commit/431d06caaf60eb45d36688244ed110f90f6a58ec
+      - details: >
+         Create coveragerc template to resolve a bug with coverage on cib
+  - 25:
+      - 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
+  - 26:
+      - repo: coala-utils
+      - link: https://gitlab.com/coala/coala-utils/commit/18c91bb2824e6bcb09de14af3ae38ec279b8d9e3
+      - details: >
+         use __all__ for exports to prevent failing coala --ci check
+  - 27:
+      - repo: coala-utils
+      - link: https://gitlab.com/coala/coala-utils/commit/25cc5a3178586a1d51d0385eca12a176914a0b8c
+      - details: >
+         Use appveyor template for coala-utils
+  - 28:
+      - repo: coala-utils
+      - link: https://gitlab.com/coala/coala-utils/commit/43075452b59994bea598f325edc7903113a8d89c
+      - details: >
+         Ignore build dir from coafile
+  - 29:
+      - repo: coala-utils
+      - link: https://gitlab.com/coala/coala-utils/commit/ac382613bb2f62eaac8b9e68b35421ae43dd93eb
+      - details: >
+         Use __all__ in init.py
+  - 30:
+      - 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
+  - 31:
+      - 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
+  - 32:
+      - repo: coala-bears
+      - link: https://github.com/coala/coala-bears/commit/efdfbc1cec98db76a5bb2c75fbfa414686be4db8
+      - details: >
+         Use CabalRequirement for HaskellLintBear
+  - 33:
+      - repo: coala-bears
+      - link: https://github.com/coala/coala-bears/commit/e62d16f8315e4dcd10c9c57af3ab3e5973b10d73
+      - details: >
+         Add language setting for ESLintBear using various plugins for eslint
+  - 34:
+      - repo: coala-bears
+      - link: https://gitlab.com/coala/package_manager/commit/a786450e5cdfd3172caf86c60786c0d1ce6ee10f
+      - details: >
+         Add GherkinLintBear
+  - 35:
+      - repo: coala-bears
+      - link: https://gitlab.com/coala/package_manager/commit/868afe0dcdf6ab0c964f1ce72152fedb132f44cb
+      - details: >
+         Add BashateBear
+  - 36:
+      - repo: dependency_management
+      - link: https://gitlab.com/coala/package_manager/commit/75b3c37f7ffd7b6c9f693d131bf4f627fd95373d
+      - details: >
+         Add PlatformRequirement class for system specific package managers
+  - 37:
+      - repo: dependency_management
+      - link: https://gitlab.com/coala/package_manager/commit/a786450e5cdfd3172caf86c60786c0d1ce6ee10f
+      - details: >
+         Return exitcode after running the install command
+  - 38:
+      - repo: dependency_management
+      - link: https://gitlab.com/coala/package_manager/commit/868afe0dcdf6ab0c964f1ce72152fedb132f44cb
+      - details: >
+         Add CabalRequirement for backwards compatibility
+  - 39:
+      - repo: dependency_management
+      - link: https://gitlab.com/coala/package_manager/commit/995b50ba1861296d333442be9e16ba2b1c4a47b6
+      - details: >
+         Run pip as python module
+  - 40:
+      - repo: bear-install-playbook
+      - link: https://gitlab.com/coala/bear-install-playbook/commit/7ba1c3ef9c29dc58a1c5b0109328317f3b0924df
+      - details: >
+         Add playbook for installing individual bears
+  - 41:
+      - repo: bear-install-playbook
+      - link: https://gitlab.com/coala/bear-install-playbook/commit/1b288844aa157ff4e8c80a3179c5d58163a2719f
+      - details: >
+         Test playbook using docker + Travic CI
+  - 42:
+      - repo: bear-install-playbook
+      - link: https://gitlab.com/coala/bear-install-playbook/commit/7dee7591927c0883269f5741102b90bfb93f84ff
+      - details: >
+         Add instructions on using playbook
+  - 43:
+      - 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.