When comparing Metalsmith vs Sitegen, the Slant community recommends Metalsmith for most people. In the question“What are the best static site generators?” Metalsmith is ranked 13th while Sitegen is ranked 32nd. The most important reason people chose Metalsmith is:
Because metalsmith is at its core focused on transforming directories of files, it can be used for more than just static site generation, and could be used as a build tool, a documentation generator, or any use that requires file transformations.
Specs
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Pros
Pro Flexible beyond a static site generator
Because metalsmith is at its core focused on transforming directories of files, it can be used for more than just static site generation, and could be used as a build tool, a documentation generator, or any use that requires file transformations.
Pro Designed around plugins
Everything in metalsmith is a plugin, and it is designed to make it easy to write new ones.
Pro Chaining API
Metalsmith uses a chaining API that's consistent and simple to use:
Metalsmith(__dirname)
.use(markdown)
.use(templates('handlebars'))
.build();
Pro Easy configuration
You configure the site with a site.moon file. It is written in MoonScript.
Pro Powerful templating
It uses the cosmo templating language. It enables you to inject stuff into the page as it is being generated.
Pro Extendable through plugins
It has a plugin system. It comes bundled with some plugins already, like syntax highlighting. You can write your own plugins.
Pro HTML and Markdown
Pages and templates can be written in HTML or Markdown
Pro Easy
It's pretty easy to get started with.
Cons
Con Small community
The Metalsmith community is still fairly small compared to the more popular options. This results in a lack of learning resources and difficulty finding support from experienced users. However, a slack group has recently been started.
Con Not client enabled API chaining
According to the spec on API chaining, the API request/response need to associate an API object to an corresponding controller/action/uri to be able to validate and handle the request/response and the datasets.
Without that, the consuming client service cannot properly validate or relate the datasets from one to the other. Links have no relational value and the api object creates the relationship between the datasets while maintaining an api/dataset relationship with the corresponding controller/action/uri
As such, the current methodology supported would not be able to be called by the client not supported by the client in a RESTFUL manner