Absolute paths support

[rpominov]

Solution 1

One way we can add support of absolute paths is to automatically strip out root (as defined by path.parse()) before transforming the path, then add it back to the front of the result path.

Issues:

• No way to remove the root
• on Windows it won't be possible to change the root from C:\ to D:\ etc.

Solution 2

Add a {root} keyword, that inserts the root. This way you can either do {root}{0..-1}, or D:/{0..-1} to change the root.

Issues:

• users will have to think about it "do I always add {root}? do I do it only when I expect an absolute path? do I expect an absolute in a particular case?"
• visual noise / mental load when looking at a pattern

Solution 3

The first solution + an option removeRoot.

Issues:

• will make API more complex
• will work only when you use API directly. If a path-rebuild pattern is a part of some kind of a config there will be no way to pass the option (except by making the config schema more complex as well)

[rpominov]

Done (Solution 2)