Upstream spencermountain/spacetime state of the touched files before fe90cae667

zonefile/pack.js

@@ -0,0 +1,47 @@
+//turn our timezone data into a small-as-possible string
+import { writeFileSync } from 'node:fs'
+import iana from './iana.js'
+import aliases from './aliases.js'
+import prefixes from './_prefixes.js'
+const all = {}
+
+// add aliases in
+Object.keys(aliases).forEach((k) => {
+  const found = iana[aliases[k]]
+  if (!found) {
+    console.log('missing', aliases[k]) //eslint-disable-line
+  }
+  iana[k] = Object.assign({}, found)
+})
+
+//pack iana data into a [o|h] object
+Object.keys(iana).forEach((k) => {
+  const o = iana[k]
+  let key = o.offset + '|' + o.hem
+  if (o.dst) {
+    key += '|' + o.dst
+  }
+  all[key] = all[key] || []
+  const name = k.replace(/(.*?)\//, (a, prefix) => {
+    const index = prefixes.indexOf(prefix)
+    if (index !== -1) {
+      return index + '/'
+    }
+    return a
+  })
+  all[key].push(name)
+})
+
+//add-in informal abbreviations
+// all = addHemisphere(all, informal.south, 's')
+// all = addHemisphere(all, informal.north, 'n')
+
+let keys = Object.keys(all)
+keys = keys.sort((a, b) => (a < b ? 1 : -1))
+const result = {}
+keys.forEach((k) => {
+  result[k] = all[k].join(',')
+})
+
+// console.log(result)
+writeFileSync('./zonefile/_build.js', 'export default ' + JSON.stringify(result, null, 2))