proper shrinkwrap in build and release

build will create it if it's missing, copy it to the build and also create a version without dev deps
release requires it and fatals if it doesn't exist

Conflicts:
	tasks/build/index.js

tasks/build/index.js

@@ -2,6 +2,7 @@ module.exports = function (grunt) {
   let { flatten } = require('lodash');
 
   grunt.registerTask('build', flatten([
+    '_build:shrinkwrap:ensureExists:true',
     '_build:getProps',
     'clean:build',
     'clean:target',
@@ -12,6 +13,8 @@ module.exports = function (grunt) {
     '_build:installedPlugins',
     '_build:packageJson',
     '_build:readme',
+    '_build:shrinkwrap:copyToBuild',
+    '_build:shrinkwrap:cleanup',
     '_build:installNpmDeps',
     'clean:testsFromModules',
     'run:optimizeBuild',

tasks/build/shrinkwrap.js

@@ -0,0 +1,41 @@
+module.exports = function (grunt) {
+  let { config } = grunt;
+  let { statSync } = require('fs');
+  let { join } = require('path');
+  let exec = (...args) => require('../utils/exec')(...args, { cwd: config.get('root') });
+  let newFiles = [];
+  let shrinkwrapFile = join(config.get('root'), 'npm-shrinkwrap.json');
+
+  grunt.registerTask('_build:shrinkwrap:ensureExists', function (createIfMissing) {
+    try {
+      statSync(shrinkwrapFile);
+    } catch (e) {
+      if (e.code !== 'ENOENT') throw e;
+
+      if (createIfMissing) {
+        exec('npm', ['shrinkwrap', '--silent', '--dev']);
+        newFiles.push(shrinkwrapFile);
+      }
+      else grunt.fail.warn('Releases require an npm-shrinkwrap.json file to exist');
+    }
+  });
+
+  grunt.registerTask('_build:shrinkwrap:copyToBuild', function () {
+    // this.requires(['_build:shrinkwrap:ensureExists', 'copy:devSource']);
+
+    // backup shrinkwrap and copy to build
+    exec('cp', ['npm-shrinkwrap.json', 'npm-shrinkwrap.dev']);
+    exec('cp', ['npm-shrinkwrap.json', join(config.get('root'), 'build', 'kibana', 'npm-shrinkwrap.build.json')]);
+
+    // create shrinkwrap without dev dependencies and copy to build
+    exec('npm', ['shrinkwrap', '--silent']);
+    exec('cp', ['npm-shrinkwrap.json', join(config.get('root'), 'build', 'kibana', 'npm-shrinkwrap.json')]);
+
+    // restore the dev shrinkwrap
+    exec('mv', ['npm-shrinkwrap.dev', 'npm-shrinkwrap.json']);
+  });
+
+  grunt.registerTask('_build:shrinkwrap:cleanup', function () {
+    if (newFiles.length) exec('rm', newFiles.splice(0));
+  });
+};

tasks/release.js

@@ -1,9 +1,9 @@
 module.exports = function (grunt) {
-
   var readline = require('readline');
 
   // build, then zip and upload to s3
   grunt.registerTask('release', [
+    '_build:shrinkwrap:ensureExists',
     '_release:confirmUpload',
     '_release:loadS3Config',
     'build',