Get only changed yamls

.gitignore

@@ -1,3 +1,2 @@
 npm-debug.log*
 node_modules/
-.prettierrc

.travis.yml

@@ -5,4 +5,8 @@ cache:
   directories:
     - "node_modules"
 
+before_script:
+  - "git log"
+  - "git diff --name-only --diff-filter=AM"
+
 script: npm run-script build

curations/npm/npmjs.org/glob.yaml

@@ -0,0 +1,22 @@
+package:
+  name: lodash
+  provider: npmjs
+  type: npm
+  namespace: "-"
+revisions:
+  4.17.4:
+    described:
+      issueTracker: "https://foobar.com/baz/1"
+    licensed:
+      copyright:
+        statements:
+          - "foo"
+          - "bar"
+        holders:
+          - "foo"
+          - "bar"
+      license:
+        expression: "MIT"
+  4.17.5:
+    described:
+      releaseDate: "2018-01-18T06:00:51.556Z"

curations/npm/npmjs.org/redie.yaml

@@ -1,4 +1,22 @@
-0.3.0:
-  copyright: bar
-0.2.0:
-  copyright: bar
+package:
+  name: lodash
+  provider: npmjs
+  type: npm
+  namespace: "-"
+revisions:
+  4.17.4:
+    described:
+      issueTracker: "https://foobar.com/baz/1"
+    licensed:
+      copyright:
+        statements:
+          - "foo"
+          - "bar"
+        holders:
+          - "foo"
+          - "bar"
+      license:
+        expression: "MIT"
+  4.17.5:
+    described:
+      releaseDate: "2018-01-18T06:00:51.556Z"

package.json

@@ -11,7 +11,7 @@
     "build": "node scripts/build.js"
   },
   "dependencies": {
-    "glob": "^7.1.2",
-    "js-yaml": "^3.10.0"
+    "js-yaml": "^3.10.0",
+    "simple-git": "^1.85.0"
   }
 }

scripts/build.js

@@ -1,10 +1,10 @@
 // Copyright (c) 2017, The Linux Foundation. All rights reserved.
 // SPDX-License-Identifier: MIT
 
-const glob = require('glob');
 const yaml = require('js-yaml');
 const fs = require('fs');
 const {log} = require('console');
+const git = require('simple-git/promise')(__dirname);
 
 const ERROR = 1;
 const isCLI = require.main === module;
@@ -14,11 +14,7 @@ const colors = {
   green: '\x1b[32m',
   yellow: '\x1b[33m'
 };
-
-// @todo only load new/changed yaml - use git diff
-function getYamlFilePaths() {
-  return glob.sync('{**/*.yaml,**/*.yml}');
-}
+const TRAVIS_BRANCH = process.env.TRAVIS_BRANCH
 
 function failure(error = 'Error') {
   log(colors.red, `${error}`);
@@ -40,19 +36,48 @@ function logYamlDoc({data, path}) {
   yaml.safeDump(data).split('\n').forEach(line => log(colors.green, line));
 }
 
-function run() {
-  let paths = getYamlFilePaths();
-  if (!paths.length) {
+function isCurationFile(path) {
+  return path.startsWith('curations/')
+    && (path.endsWith('.yml') || path.endsWith('.yaml'));
+}
+
+async function getAddedAndChangedYamls(commitRange = `HEAD...${TRAVIS_BRANCH}`) {
+  let yamls = [];
+
+  try {
+    let paths = await git.raw([
+      'diff',
+      '--name-only',
+      '--diff-filter=AM',
+      commitRange
+    ]);
+    yamls = paths ? paths.split('\n').filter(isCurationFile) : [];
+  } catch (error) {
+    failure(`Git error: ${error}`)
+  }
+
+  return yamls;
+}
+
+function processCurations(yamls) {
+  log('added', process.env.ADDED_CHANGED_FILES);
+  log('travisbranch', process.env.TRAVIS_BRANCH);
+
+  if (!yamls.length) {
     return failure('0 yaml files');
   }
 
-  let docs = paths.map(loadYamlFile).filter(x => x !== ERROR);
+  let docs = yamls.map(loadYamlFile).filter(x => x !== ERROR);
   if (docs.length) {
-    log(colors.yellow, 'Valid yaml file(s):');
+    log(colors.yellow, 'Valid yaml files:');
   }
   docs.forEach(logYamlDoc);
 }
 
+function run() {
+  getAddedAndChangedYamls('').then(processCurations);
+}
+
 if (isCLI) {
   run();
 }