postcss-combine-duplicated-selectors

This release removes uses of deprecated postcss 5 methods. (#94 thanks to @XhmikosR)
📓 The new postcss 6 API's no longer guarantee that spacing format will be preserved.
📔 spacing format will no longer be considered breaking as part of the sematic versioning of this package.

Project now follows the conventional commits standard for commit messages and offers commitizen as a way to generate standard commits in a easy to use command line interface npm run cz.

Documentation has been updated to link to other standards which project adheres to.

At rules with different vendor prefixes will not be combined. #85

E.G. the following will remain unchanged.

@-webkit-keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

Duplicated properties can optionally be combined. (#76 thanks to @aldebaran798)

When option is enabled

postcss([require('postcss-combine-duplicated-selectors')({removeDuplicatedProperties: true})])

The following css

.a {
  height: 10px;
  background: orange;
  background: rgba(255, 165, 0, 0.5);
}

will combine into

.a {
  height: 10px; 
  background: rgba(255, 165, 0, 0.5);
}

Generalizes handling of @media to support @keyframes, @viewport, and other @ rules in CSS.

@media selectors are now processed separately from global selectors. (#6 thanks to @kristoferjoseph)

Meaning

.example {
  color: blue;
}
.example {
  background: green;
}


@media print {
  .example {
    color: red;
  }
  .example {
    background: yellow;
  }
}

will correctly reduce to

.example {
  color: blue;
  background: green;
}


@media print {
  .example {
    color: red;
    background: yellow;
  }
}

More internal normalizations are now handled by postcss-selector-parser

plugin can now be used with postcss-cli.

Example Javascript in README is now checked against linter.

Drops support for Node.js 0.12
Allowing more code to be run natively, and less to be transformed by babel.

Matching selectors that have different text order but same logical meaning are now grouped.

E.G.

.one.two {} .two.one {}

becomes

.one.two {}

Testing

• Added tests for different textual ordering
• Added tests for pseudo classes
• Added tests for psuedo elements
• Restructured tests to separate unique selector tests and duplicated selector tests
• Restructured tests to separate css tests from less/scss tests.

Chores

• Updated dependencies
• Added script to ensure release will always have latest built code

Matching selectors with attributes can now be combined.
README now includes a usage guide.

Testing

• Selector attribute tests

Linting

• Check Javascript import statements for correctness

New Tests:

• Multiple declarations @eirslett
• Nested selectors
• Sibling selectors

Fix:

• Resolved issue with multiple declarations not being copied correctly

Chores:

• Move tests into test macros
• Updated project dependencies

Plugin can now group selectors with different spacing between each statement.

Support for combining groups that have identical selectors.