chore: script for diffing circular deps +/-

package.json

@@ -114,6 +114,7 @@
     "circular-deps": "dpdm --no-warning --no-tree -T --skip-dynamic-imports=circular src/index.tsx",
     "circular-deps:overwrite": "npm run circular-deps | sed '$d' | grep -v '^npm run' > known-circular.txt",
     "circular-deps:diff": "./scripts/diff-circular-deps.sh",
+    "circular-deps:diff:nodejs": "npm run circular-deps:diff || node ./scripts/diff.js",
     "files:set-version": "echo \"$(jq --arg v \"$VERSION\" '.version=$v' package.json --indent 2)\" > package.json",
     "files:set-notes": "./scripts/set-files-notes.sh",
     "files:flip-to-nightly": "./scripts/flip-files-to-nightly.sh",

scripts/diff.js

@@ -0,0 +1,58 @@
+const fs = require('fs')
+const latestRun = fs.readFileSync('/tmp/circular-deps.txt','utf-8')
+const knownCircular = fs.readFileSync('./known-circular.txt','utf-8')
+
+function parseLine (line) {
+  let num = null
+  let depPath = null
+  const res = line.split(")",2)
+  if (res.length === 2) {
+    // should be a dep line
+    num = parseInt(res[0])
+    depPath = res[1]
+  }
+  return {
+    num,
+    depPath
+  }
+}
+
+function makeDependencyHash (file) {
+  const deps = {}
+  file.split("\n").forEach((line)=>{
+    const {num, depPath} = parseLine(line)
+    if (depPath && !isNaN(num)) {
+      deps[depPath] = 1
+    }
+  })
+  return deps
+}
+
+const latestRunDepHash = makeDependencyHash(latestRun)
+const knownDepHash = makeDependencyHash(knownCircular)
+
+const dup1 = JSON.parse(JSON.stringify(latestRunDepHash))
+const dup2 = JSON.parse(JSON.stringify(knownDepHash))
+Object.keys(knownDepHash).forEach((key)=>{
+  delete dup1[key]
+})
+
+Object.keys(latestRunDepHash).forEach((key)=>{
+  delete dup2[key]
+})
+
+console.log("diff.js - line item diff")
+console.log(" ")
+console.log("Added(+)")
+Object.keys(dup1).forEach((dep, index)=>{
+  console.log(`${index+1}) ${dep}`)
+})
+
+console.log(" ")
+console.log("Removed(-)")
+if (Object.keys(dup2).length === 0) {
+  console.log("None")
+}
+Object.keys(dup2).forEach((dep, index)=>{
+  console.log(`${index+1}) ${dep}`)
+})