Git pre-commit hook for running cpplint

[abhinavjain241]

Installation procedure is easy, go to swarm_simulator root directory and then run:

./scripts/git/install-pre-commit.sh

The typical process would be like:

• Develop a feature or fix a bug, etc.
• Add the changes.
• Try to do a commit.
• Cpplint runs once the pre-commit hook triggers.
• According to the lint outputs, conform commit or abort to further modifications.

Lets take a sample test file Test.cpp:

#include <iostream>

 int main()
 {
     std::cout<<"Hello CppLint!"<<std::endl;
     return 0;
 }

Add the files:

Commit them:

If answer is y, then the commit will be conformed, otherwise a n will abort the commit.

Commit them along with --no-verify option:

You can always pass --no-verify to commit to bypass the pre-commit hook.

[aa-dit-yuh]

A better solution for maintaining code quality would be to setup Travis builds for each branch and PR that runs the above python script. It would also builds the entire package on different versions of ROS and run tests against them(if any).
About the PR:

• Stray commits included from February. Stash and rebase.

[abhinavjain241]

Yeah, that would be better. Thanks for the suggestion @narayanaditya95! And sorry about that, will stash the stray commit and then rebase.