php - Dynamic Dependencies for larger library -

let's have library contains multiple parts, , b.

in application require library use part only. defined thru config setting in application can read dynamically.

now , b have different requirements other packages.

how require dependencies if used?

the obvious answer split library 2 libraries. library not split , require big effort of work , change workflow - don't want. think of eg. zend framework single library.

the best way removing both , b "require" section , adding them "suggest" section instead (including short description):

{     ...     "suggest": {         "a/a": "to able use x (1.*)",         "b/b": "to able use y (~1.3)"     } } 

now, when user installs package, it'll message showing suggested packages:

package/package suggests installing "a/a": able use x (1.*) package/package susgests installing "b/b": able use y (~1.3) 

the user installing package should determine theirselves if want require "a/a" or "b/b".

---

while solution 1 of used , simple, better option split package. see "there’s no such thing optional dependency"