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-I don't like trailing white spaces in my source code. I've configured my
-editors to highlight them so I don't add them by accident, and when
-possible, I remove them. But it doesn't mean that all of them should be
-removed blindly.
-
-In this post, I'm talking about files that are managed by a SCM. When
-working on such a text file, editor's hooks that delete them when
-writing a file can be more annoying than keeping them in place. A change
-should only touch lines that are relevant to the fix or feature beeing
-added. Touching lines that are not relevant are creating noise in the
-history. I've made this mistake in the past, and I've learned my
-lessons.
-
-** Pain for the reviewer
-
-The person who will review the change will have to make an extra effort
-to understand why the diff highlight some lines where it looks like
-there's no change. It's a distraction to his main task, and it doesn't
-bring any benefit to the change beeing submitted.
-
-** Pain for the person browsing the history
-
-When someone browse the history and try to understand what changed
-between two versions, the deletion is just noise. It's already hard to
-make the mental effort to read a diff, and understand what and why
-things have changed. Adding some extra noise is annoying.
-
-Running a tool like =git blame= shows how useless this is, for both the
-person reading the history and the author.
-
-** Tips
-
-Configure your editor to highlight them. If you are using Emacs, you can
-do it with
-
-#+BEGIN_EXAMPLE
-    (require 'whitespace)
-    (global-whitespace-mode 1)
-    (setq whitespace-style '(face trailing tabs tab-mark))
-#+END_EXAMPLE
-
-With vim, you can add the following:
-
-#+BEGIN_EXAMPLE
-    set list lcs=trail:·,tab:»·
-    highlight ExtraWhitespace ctermbg=red guibg=red
-#+END_EXAMPLE
-
-It's also possible to configure =git= to highlight them when running
-=git add -p=, by running
-
-#+BEGIN_EXAMPLE
-    git config --global core.whitespace trailing-space,space-before-tab
-#+END_EXAMPLE
-
-=git= will complain if it finds white spaces in your change, so you have
-time to fix and remove them.
-
-If you really don't want any trailing white spaces, you can also
-configure your SCM with a post-commit hook to reject commits that
-contains them.
-
-If you're using =vimdiff= to read a diff, it's possible to not highlight
-white spaces with =set diffopt+=iwhite=. This can makes it a little bit
-easier to read messy diff.