remove the concept of filesystem, we don't need it

[severo]

It's embarrassing to refactor this part again, but it's really simpler this way. We need just one function per "filesystem," nothing more.

[severo]

The change in CLI:

diff --git a/packages/cli/src/AppComponent.js b/packages/cli/src/AppComponent.js
index 65dff24..1733c4c 100644
--- a/packages/cli/src/AppComponent.js
+++ b/packages/cli/src/AppComponent.js
@@ -1,25 +1,13 @@
-import { Page, createHttpFileSystem, createHyperparamFileSystem, getSource } from '@hyparam/components'
+import { Page, getHttpSource, getHyperparamSource } from '@hyparam/components'
 import React from 'react'
 
-const fileSystems = [
-  createHttpFileSystem(),
-  createHyperparamFileSystem({ endpoint: location.origin }),
-]
-
 export default function App() {
   const search = new URLSearchParams(location.search)
   const sourceId = search.get('key') ?? ''
   const row = search.get('row') === null ? undefined : Number(search.get('row'))
   const col = search.get('col') === null ? undefined : Number(search.get('col'))
 
-  let source = undefined
-  for (const fileSystem of fileSystems) {
-    const fsSource = getSource(sourceId, fileSystem)
-    if (fsSource) {
-      source = fsSource
-      break
-    }
-  }
+  const source = getHttpSource(sourceId) ?? getHyperparamSource(sourceId, { endpoint: location.origin })
 
   if (!source) {
     return React.createElement('div', { children: 'Could not load a data source. You have to pass a valid source in the url.' })

[platypii]

Nice simplification!