Update scripts

scripts/purge-cache.js

@@ -0,0 +1,60 @@
+const chalk = require('chalk');
+
+const { getZone, purgeFiles } = require('./utils/cloudflare');
+const { die } = require('./utils/process');
+const { getFiles } = require('./utils/unpkg');
+
+const packageName = process.argv[2];
+const version = process.argv[3];
+
+if (packageName == null) {
+  die(
+    'Missing the PACKAGE_NAME argument; use `node purge-cache.js PACKAGE_NAME VERSION`'
+  );
+}
+
+if (version == null) {
+  die(
+    'Missing the VERSION argument; use `node purge-cache.js PACKAGE_NAME VERSION`'
+  );
+}
+
+function groupBy(array, n) {
+  const groups = [];
+
+  while (array.length) {
+    groups.push(array.splice(0, n));
+  }
+
+  return groups;
+}
+
+getFiles(packageName, version)
+  .then(files => {
+    console.log(
+      chalk.yellow(
+        `Found ${files.length} files for package ${packageName}@${version}`
+      )
+    );
+
+    return getZone('unpkg.com').then(zone => {
+      let promise = Promise.resolve();
+
+      groupBy(files, 30).forEach(group => {
+        promise = promise.then(() => {
+          const urls = group.map(
+            file => `https://unpkg.com/${packageName}@${version}${file.path}`
+          );
+
+          return purgeFiles(zone.id, urls).then(data => {
+            group.forEach(file =>
+              console.log(chalk.green(`Purged ${file.path}`))
+            );
+          });
+        });
+      });
+
+      return promise;
+    });
+  })
+  .catch(die);

scripts/show-log.js

@@ -1,49 +1,14 @@
-require("isomorphic-fetch");
-const invariant = require("invariant");
+const { getZones, getLog } = require('./utils/cloudflare');
+const { die } = require('./utils/process');
 
-const CloudflareEmail = process.env.CLOUDFLARE_EMAIL;
-const CloudflareKey = process.env.CLOUDFLARE_KEY;
-const RayID = process.argv[2];
+const RayId = process.argv[2];
 
-invariant(
-  CloudflareEmail,
-  "Missing the $CLOUDFLARE_EMAIL environment variable"
-);
-
-invariant(CloudflareKey, "Missing the $CLOUDFLARE_KEY environment variable");
-
-invariant(
-  RayID,
-  "Missing the RAY_ID argument; use `heroku run node show-log.js RAY_ID`"
-);
-
-function getZones(domain) {
-  return fetch(`https://api.cloudflare.com/client/v4/zones?name=${domain}`, {
-    method: "GET",
-    headers: {
-      "X-Auth-Email": CloudflareEmail,
-      "X-Auth-Key": CloudflareKey
-    }
-  })
-    .then(res => res.json())
-    .then(data => data.result);
+if (RayId == null) {
+  die('Missing the RAY_ID argument; use `node show-log.js RAY_ID`');
 }
 
-function getLog(zoneId, rayId) {
-  return fetch(
-    `https://api.cloudflare.com/client/v4/zones/${zoneId}/logs/requests/${rayId}`,
-    {
-      method: "GET",
-      headers: {
-        "X-Auth-Email": CloudflareEmail,
-        "X-Auth-Key": CloudflareKey
-      }
-    }
-  ).then(res => (res.status === 404 ? "NOT FOUND" : res.json()));
-}
-
-getZones("unpkg.com").then(zones => {
-  getLog(zones[0].id, RayID).then(entry => {
-    console.log(entry);
+getZone('unpkg.com').then(zone => {
+  getLog(zone.id, RayId).then(entry => {
+    console.log(entry || 'NOT FOUND');
   });
 });

scripts/utils/cloudflare.js

@@ -0,0 +1,90 @@
+const fetch = require('isomorphic-fetch');
+
+const CloudflareEmail = process.env.CLOUDFLARE_EMAIL;
+const CloudflareKey = process.env.CLOUDFLARE_KEY;
+
+if (CloudflareEmail == null) {
+  console.error('Missing the $CLOUDFLARE_EMAIL environment variable');
+  process.exit(1);
+}
+
+if (CloudflareKey == null) {
+  console.error('Missing the $CLOUDFLARE_KEY environment variable');
+  process.exit(1);
+}
+
+function get(path) {
+  return fetch(`https://api.cloudflare.com/client/v4${path}`, {
+    method: 'GET',
+    headers: {
+      'X-Auth-Email': CloudflareEmail,
+      'X-Auth-Key': CloudflareKey
+    }
+  });
+}
+
+function getLog(zoneId, rayId) {
+  return get(`/zones/${zoneId}/logs/requests/${rayId}`).then(
+    res => (res.status === 404 ? null : res.json())
+  );
+}
+
+function getZone(domain) {
+  return get(`/zones?name=${domain}`)
+    .then(res => res.json())
+    .then(data => {
+      if (!data.success) throw data;
+
+      const zones = data.result;
+
+      if (zones.length > 1) {
+        console.error(
+          `Domain "${domain}" has more than one zone: ${zones.join(', ')}`
+        );
+      }
+
+      return zones[0];
+    });
+}
+
+function post(path, data) {
+  const options = {
+    method: 'POST',
+    headers: {
+      'X-Auth-Email': CloudflareEmail,
+      'X-Auth-Key': CloudflareKey
+    }
+  };
+
+  if (data) {
+    options.headers['Content-Type'] = 'application/json';
+    options.body = JSON.stringify(data);
+  }
+
+  return fetch(`https://api.cloudflare.com/client/v4${path}`, options);
+}
+
+function purgeFiles(zoneId, files) {
+  return post(`/zones/${zoneId}/purge_cache`, { files })
+    .then(res => res.json())
+    .then(data => {
+      if (data.success) return data;
+      throw data;
+    });
+}
+
+function purgeTags(zoneId, tags) {
+  return post(`/zones/${zoneId}/purge_cache`, { tags })
+    .then(res => res.json())
+    .then(data => {
+      if (data.success) return data;
+      throw data;
+    });
+}
+
+module.exports = {
+  getLog,
+  getZone,
+  purgeFiles,
+  purgeTags
+};

scripts/utils/process.js

@@ -0,0 +1,12 @@
+const util = require('util');
+const chalk = require('chalk');
+
+function die(why) {
+  const message = typeof why === 'string' ? why : util.inspect(why);
+  console.error(chalk.red(message));
+  process.exit(1);
+}
+
+module.exports = {
+  die
+};

scripts/utils/unpkg.js

@@ -0,0 +1,22 @@
+const fetch = require('isomorphic-fetch');
+
+function getMetadata(packageName, version) {
+  return fetch(`https://unpkg.com/${packageName}@${version}/?meta`, {
+    method: 'GET'
+  }).then(res => res.json());
+}
+
+function collectFiles(directory) {
+  return directory.files.reduce((memo, file) => {
+    return memo.concat(file.type === 'directory' ? collectFiles(file) : file);
+  }, []);
+}
+
+function getFiles(packageName, version) {
+  return getMetadata(packageName, version).then(collectFiles);
+}
+
+module.exports = {
+  getMetadata,
+  getFiles
+};