add_gitignore : adding .gitignore file

[bghimireamd]

In this PR we add .gitignore file. Currently the ignores are related to documenation.

[amberhassaan]

One question and rest is good.

[amberhassaan]

why are these lines needed? These could be legit files that we want in the repository.

[junliume]

@bghimireamd @JehandadKhan @atamazov We discussed about .gitignore before and previously decided that it should be user specific and not provided by the repo, e.g. build does not necessarily reside in the same directory.
What has changed and now requiring us to add the file?

[atamazov]

@junliume I do not know. I have my own .gitignore and do not need this.

[bghimireamd]

@bghimireamd @JehandadKhan @atamazov We discussed about .gitignore before and previously decided that it should be user specific and not provided by the repo, e.g. build does not necessarily reside in the same directory. What has changed and now requiring us to add the file?

Oh! in that case we can place a hold on this PR. Documentation change was introduced by #2587 , which I believe generates some files during build process. To ignore those files this .gitinore was added.

We can have our own local .gitignore.

[CAHEK7]

The good practice is not generating anything in the source directory. Ideally it should be read-only.

[amberhassaan]

My humble opinion is that it is common for projects to have a .gitignore that serves the need. Folks can modify this .gitignore locally or if I recall, there's a way to have a global .gitignore that users control: https://sebastiandedeyne.com/setting-up-a-global-gitignore-file/

[CAHEK7]

My humble opinion is that it is common for projects to have a .gitignore that serves the need.

It depends - if you don't generate anything in the build directory - you don't need default project .gitignore. No needs - no serve.

Each user makes .gitignore for himself based on a particular IDE or specific workflow - putting all possible combinations of IDE's temporary files and directories and something like build/* does not look like a good idea.