Curriculum change: track sequence (round 1)

bin/generate-config-tree

@@ -0,0 +1,35 @@
+#!/usr/bin/env node
+
+const { exercises } = require('../config.json')
+const TAG_CORE = '__core'
+const TAG_BONUS = '__bonus'
+
+// node inter-opt exports
+exports.TAG_CORE = TAG_CORE
+exports.TAG_BONUS = TAG_BONUS
+
+exports.tree = exercises.reduce((result, exercise) => {
+    const tag = exercise.slug
+    const item = {
+        slug: tag,
+        difficulty: exercise.difficulty,
+    }
+
+    if (exercise.core) {
+        const current = result[TAG_CORE] || []
+
+        if (result[tag]) {
+            console.warn(`${tag} is not ordered correctly in config.json`)
+        }
+
+        return {
+            ...result,
+            __core: current.concat([item]),
+            [tag]: result[tag] || []
+        }
+    }
+
+    const parent = exercise.unlocked_by || TAG_BONUS
+    const current = result[parent] || []
+    return { ...result, [parent]: current.concat([item]) }
+}, {})

bin/print-config-tree

@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+
+const actions = require('./generate-config-tree')
+
+const { tree, TAG_BONUS, TAG_CORE } = actions
+const { [TAG_BONUS]: __bonus, [TAG_CORE]: __core, ...track } = tree
+
+function printLn(line) {
+    process.stdout.write(`${line}\n`)
+}
+
+function printList(items) {
+    items.forEach(item => {
+        printLn(`- ${item.slug} (${item.difficulty})`)
+    })
+}
+
+printLn('Core (matches config.json) of this track:')
+printList(__core)
+printLn('\n')
+printLn('core')
+printLn('----')
+Object.keys(track).forEach(slug => {
+    printLn(`├─ ${slug}`)
+    track[slug].forEach((side, index, self) => {
+        junction = index === self.length - 1 ? '└─' : '├─'
+        printLn(`│  ${junction} ${side.slug} (${side.difficulty})`)
+    })
+    printLn('│')
+})
+
+printLn('bonus')
+printLn('----')
+printList(__bonus)