Report duplicate blocks

[bartveneman]

A feature in SonarQube is to report duplicate selectors. It would be interesting to take this one step further and report when complete blocks are duplicated.

.my-class { color: red; background: white; } /* ... lots of code ... */ .my-class { color: red; background: white; } /* Open for discussion */ .my-class, .my-second-class { /* <-- Extra class, but the initial class and rule block are identical */ color: red; background: white; } /* Same ruleset, but within a @media at-rule */ @media (min-width: 400px) { .my-class { color: red; background: white; } }