Use a shared cache instance across the process.

Avoids having to duplicate the cache key in multiple places.

Author: Robert Jackson

lib/cache.js

@@ -0,0 +1,7 @@
+const Cache = require("sync-disk-cache");
+const getRepoInfo = require("git-repo-info");
+
+const gitInfo = getRepoInfo();
+const cache = new Cache(`native-class-codemod-${gitInfo.sha}`);
+
+module.exports = cache;

lib/gather-telemetry.js

@@ -1,9 +1,5 @@
 const puppeteer = require("puppeteer");
-const getRepoInfo = require("git-repo-info");
-const Cache = require("sync-disk-cache");
-
-const gitInfo = getRepoInfo();
-const cache = new Cache(`native-class-codemod-${gitInfo.sha}`);
+const cache = require("./cache");
 
 module.exports = async function gatherTelemetry(url) {
   const browser = await puppeteer.launch();

transforms/ember-object/test.js

@@ -3,13 +3,10 @@
 const { runTransformTest } = require("codemod-cli");
 
 // bootstrap the mock telemetry data
-const getRepoInfo = require("git-repo-info");
-const Cache = require("sync-disk-cache");
 const walkSync = require("walk-sync");
 const mockTelemetryData = require("./__testfixtures__/-mock-telemetry.json");
 
-const gitInfo = getRepoInfo();
-const cache = new Cache(`native-class-codemod-${gitInfo.sha}`);
+const cache = require("../../lib/cache");
 
 // This is nasty, cwd is screwed up here for some reason
 let testFiles = walkSync("./transforms/ember-object/__testfixtures__", {

transforms/helpers/util/get-telemetry-for.js

@@ -1,11 +1,7 @@
 const fs = require("fs-extra");
 const path = require("path");
 const walkSync = require("walk-sync");
-const getRepoInfo = require("git-repo-info");
-const Cache = require("sync-disk-cache");
-
-const gitInfo = getRepoInfo();
-const cache = new Cache(`native-class-codemod-${gitInfo.sha}`);
+const cache = require("../../../lib/cache");
 
 const telemetry = cache.has("telemetry")
   ? JSON.parse(cache.get("telemetry").value)