• Jérome Perrin's avatar
    stack/nodejs: add yarn · cb334146
    Jérome Perrin authored
    Instead of having softwares install yarn, unify this in nodejs stack.
    
    Yarn usage is similar to nodejs usage, if a specific version is needed,
    software should use macro to expose which yarn version to use, example:
    
        [yarn]
        <= yarn-1.17.3
    
    Then sections can use yarn by having ${yarn:location}/bin/ in their path.
    
    yarn will use the default [nodejs], so to another nodejs version, the same
    pattern can be used:
    
        [nodejs]
        <= nodejs-10.6.0
    cb334146