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mendel-core

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mendel-core - npm Package Compare versions

Comparing version 4.0.0-alpha.0 to 4.0.0-alpha.1

.nyc_output/0d21ecb9-6ea8-46f9-9173-68d019b5a9ac.json
.nyc_output/53b03318-f22a-46e8-9e30-194826e5a856.json
.nyc_output/58294d11-90d4-4cec-88ec-5f308e8ceef7.json
.nyc_output/6bed8447-9d3c-486f-a332-0e6e2f933eb0.json
.nyc_output/80cb045a-f75f-4b93-9be4-a93415a0e78c.json
.nyc_output/80d3a52d-2d05-468e-a0e2-b2542216a078.json
.nyc_output/9bd1ef2d-11da-45b3-a1c3-0acc2335a89b.json
.nyc_output/c0cabb0b-9a56-4d35-a1c8-2fb4ca302c08.json
.nyc_output/processinfo/0d21ecb9-6ea8-46f9-9173-68d019b5a9ac.json
.nyc_output/processinfo/53b03318-f22a-46e8-9e30-194826e5a856.json
.nyc_output/processinfo/58294d11-90d4-4cec-88ec-5f308e8ceef7.json
.nyc_output/processinfo/6bed8447-9d3c-486f-a332-0e6e2f933eb0.json
.nyc_output/processinfo/80cb045a-f75f-4b93-9be4-a93415a0e78c.json
.nyc_output/processinfo/80d3a52d-2d05-468e-a0e2-b2542216a078.json
.nyc_output/processinfo/9bd1ef2d-11da-45b3-a1c3-0acc2335a89b.json
.nyc_output/processinfo/c0cabb0b-9a56-4d35-a1c8-2fb4ca302c08.json
.nyc_output/processinfo/index.json
test/app-samples/1/.mendelrc
test/app-samples/1/app/another-number.js
test/app-samples/1/app/index.js
test/app-samples/1/app/math.js
test/app-samples/1/app/number-list.js
test/app-samples/1/app/some-number.js
test/app-samples/1/app/syntax-error.js
test/app-samples/1/app/throws.js
test/app-samples/1/run.sh
test/app-samples/1/test_A/math.js
test/app-samples/1/test_B/some-number.js
test/app-samples/1/test_C/some-number.js
test/app-samples/2/.mendelrc
test/app-samples/2/src/base/complex.js
test/app-samples/2/src/base/complicator.js
test/app-samples/2/src/base/easy.js
test/app-samples/2/src/base/get_late.js
test/app-samples/2/src/base/late.js
test/app-samples/2/src/base/main.js
test/tree-deserializer.js
test/tree-hash-walker.js
test/tree-serializer.js
test/tree-variation-walker-server.js
test/tree-variation-walker.js
test/tree-walker.js
test/trees.js

14

package.json
{
"name": "mendel-core",
"version": "4.0.0-alpha.0",
"version": "4.0.0-alpha.1",
"description": "Mendel shared dependencies production use",
"main": "trees.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
"test": "tap test/*.js --coverage-map=../../.tap.coverage.map.js --no-check-coverage"
},

@@ -16,3 +16,3 @@ "keywords": [

"type": "git",
"url": "https://github.com/yahoo/mendel"
"url": "https://github.com/considerinc/mendel"
},

@@ -23,3 +23,3 @@ "dependencies": {

"dissolve": "^0.2.1",
"mendel-config": "^4.0.0-alpha.0",
"mendel-config": "^4.0.0-alpha.1",
"stream-browserify": "^2.0.1",

@@ -29,3 +29,7 @@ "urlsafe-base64": "^1.0.0",

},
"gitHead": "e91812ab9f13c60d431be5ce5e024d3a68073f42"
"devDependencies": {
"mkdirp": "^3.0.1",
"tap": "^16.3.8"
},
"gitHead": "6e24d114f4ff273753654df1aa5e6c124f626e25"
}

17

README.md

@@ -5,4 +5,4 @@ # Mendel Core - Production resolution of file system based experiments

1. Given a variation array, it resolves which files should be used for a given user session. It outputs an "application tree" and a deterministic hash.
2. Given a hash generated in step 1, it can recover all file dependencies for the same user session, resulting in the same exact "application tree" as step 1.
1. Given a variation array, it resolves which files should be used for a given user session. It outputs an "application tree" and a deterministic hash.
2. Given a hash generated in step 1, it can recover all file dependencies for the same user session, resulting in the same exact "application tree" as step 1.

@@ -70,3 +70,2 @@ Mendel Core works by loading [Mendel Manifests](../../docs/Design.md) on a per-process basis, and resolves "application trees" on a per request (or per user session) basis.

### Request Cycle: Hash resolution

@@ -104,3 +103,2 @@

#### Mendel Hashing algorithm

@@ -137,3 +135,2 @@

## Reference Usage

@@ -162,7 +159,7 @@

const src = '/' + bundle + '.' + tree.hash + '.js';
const script = '<script src="'+ src + '"></script>';
response.end('<html><head>'+ script + '</head></html>');
const script = '<script src="' + src + '"></script>';
response.end('<html><head>' + script + '</head></html>');
} else {
// if you have multiple bundles you will need routes based on bundle
const jsPath = new RegExp('/' + bundle + '\.(.*)\.js');
const jsPath = new RegExp('/' + bundle + '.(.*).js');
if (jsPath.test(request.url)) {

@@ -196,6 +193,6 @@ // your CDN can safely cache this url without cookies

if (!tree || tree.error || tree.conflicts) {
return response.end('Error ' + tree && tree.error || tree.conflictList);
return response.end(('Error ' + tree && tree.error) || tree.conflictList);
}
const pack = bpack({raw: true, hasExports: true});
const pack = bpack({ raw: true, hasExports: true });
pack.pipe(response);

@@ -202,0 +199,0 @@

24

tree-deserialiser.js

@@ -6,3 +6,3 @@ /* Copyright 2015, Yahoo Inc.

var Dissolve = require("dissolve");
var Dissolve = require('dissolve');
var URLSafeBase64 = require('urlsafe-base64');

@@ -19,15 +19,15 @@

.string('name', 6)
.tap(function() {
.tap(function () {
if (this.vars.name !== 'mendel') {
result.error = error("not generated by mendel");
result.error = error('not generated by mendel');
}
})
.uint8('version')
.tap(function() {
.tap(function () {
if (this.vars.version !== 1) {
result.error = error(": version mismatch");
result.error = error(': version mismatch');
}
})
.loop('branches', function(end) {
this.uint8('data').tap(function() {
.loop('branches', function (end) {
this.uint8('data').tap(function () {
if (this.vars.data === 255) {

@@ -39,3 +39,3 @@ return end();

})
.tap(function() {
.tap(function () {
this.vars.branches = branches;

@@ -45,3 +45,3 @@ })

.buffer('hash', 20)
.tap(function() {
.tap(function () {
result.decoded = this.vars;

@@ -53,3 +53,3 @@ });

parser.write(binary);
} catch(e) {
} catch (e) {
result.error = error('bad base64 input');

@@ -67,5 +67,5 @@ }

function error(msg) {
var error = new Error("Invalid hash: " + msg);
error.code = "BADHASH";
var error = new Error('Invalid hash: ' + msg);
error.code = 'BADHASH';
return error;
}

8

tree-hash-walker.js

@@ -29,3 +29,3 @@ /* Copyright 2015, Yahoo Inc.

MendelHashWalker.prototype._resolveBranch = function(module) {
MendelHashWalker.prototype._resolveBranch = function (module) {
if (this.error) return {};

@@ -51,8 +51,8 @@

MendelHashWalker.prototype._error = function(msg) {
MendelHashWalker.prototype._error = function (msg) {
this.error = this.error || new Error(msg);
this.error.code = "TRVRSL";
this.error.code = 'TRVRSL';
};
MendelHashWalker.prototype.found = function() {
MendelHashWalker.prototype.found = function () {
this._result = MendelWalker.prototype.found.call(this);

@@ -59,0 +59,0 @@

22

tree-serialiser.js

@@ -6,9 +6,11 @@ /* Copyright 2015, Yahoo Inc.

var Concentrate = require("concentrate");
var crypto = require("crypto");
var util = require("util");
var Concentrate = require('concentrate');
var crypto = require('crypto');
var util = require('util');
var URLSafeBase64 = require('urlsafe-base64');
function TreeSerialiser() {
if (!(this instanceof TreeSerialiser)) { return new TreeSerialiser(); }
if (!(this instanceof TreeSerialiser)) {
return new TreeSerialiser();
}

@@ -26,6 +28,6 @@ Concentrate.call(this);

TreeSerialiser.prototype._metadata = function() {
if (this._meta) throw new Error("Double metadata");
TreeSerialiser.prototype._metadata = function () {
if (this._meta) throw new Error('Double metadata');
var name = "mendel";
var name = 'mendel';
var version = 1;

@@ -36,3 +38,3 @@ this._meta = true;

TreeSerialiser.prototype.pushBranch = function(index) {
TreeSerialiser.prototype.pushBranch = function (index) {
if (this._result) throw new Error("Can't pushPath after result");

@@ -42,3 +44,3 @@ return this.uint8(index);

TreeSerialiser.prototype.pushFileHash = function(sha) {
TreeSerialiser.prototype.pushFileHash = function (sha) {
if (this._result) throw new Error("Can't pushFileHash after result");

@@ -52,3 +54,3 @@ if (Buffer.isBuffer(sha)) {

TreeSerialiser.prototype.result = function() {
TreeSerialiser.prototype.result = function () {
if (this._result) return this._result;

@@ -55,0 +57,0 @@

6

tree-variation-walker-server.js

@@ -6,3 +6,3 @@ /* Copyright 2015, Yahoo Inc.

var util = require("util");
var util = require('util');
var MendelVariationWalker = require('./tree-variation-walker');

@@ -23,3 +23,3 @@

MendelServerVariationWalker.prototype.find = function(module) {
MendelServerVariationWalker.prototype.find = function (module) {
var fileId = module.id;

@@ -46,3 +46,3 @@ var resolved;

MendelServerVariationWalker.prototype.found = function() {
MendelServerVariationWalker.prototype.found = function () {
// This walker doesn't care about deps index nor hashes

@@ -49,0 +49,0 @@ return this._variationMap;

8

tree-variation-walker.js

@@ -26,3 +26,3 @@ /* Copyright 2015, Yahoo Inc.

MendelVariationWalker.prototype._resolveBranch = function(module) {
MendelVariationWalker.prototype._resolveBranch = function (module) {
var fileId = module.id;

@@ -35,3 +35,3 @@ var resolved;

var index = module.variations.indexOf(this._lookupChains[i][j]);
if(-1 !== index) {
if (-1 !== index) {
if (!foundIn) {

@@ -50,3 +50,3 @@ // keep first match, priority by .mendelrc entry order

}
if (foundIn>1) {
if (foundIn > 1) {
this.conflicts++;

@@ -61,3 +61,3 @@ this.conflictList[fileId] = true;

MendelVariationWalker.prototype.found = function() {
MendelVariationWalker.prototype.found = function () {
return xtend(MendelWalker.prototype.found.call(this), {

@@ -64,0 +64,0 @@ conflicts: this.conflicts,

6

tree-walker.js

@@ -19,3 +19,3 @@ /* Copyright 2015, Yahoo Inc.

MendelWalker.prototype.find = function(module) {
MendelWalker.prototype.find = function (module) {
var resolved;

@@ -42,7 +42,7 @@ if (this.deps[module.index]) {

MendelWalker.prototype._resolveBranch = function() {
MendelWalker.prototype._resolveBranch = function () {
throw new Error('You should extend and implement _resolveBranch');
};
MendelWalker.prototype.found = function() {
MendelWalker.prototype.found = function () {
var found = {

@@ -49,0 +49,0 @@ deps: this.deps,

62

trees.js

@@ -24,7 +24,7 @@ /* Copyright 2015, Yahoo Inc.

this.ssrOutlet = this.config.outlets.find(outletConfig => {
this.ssrOutlet = this.config.outlets.find((outletConfig) => {
return outletConfig._plugin === 'mendel-outlet-server-side-render';
});
if (this.ssrOutlet) {
this.ssrBundle = this.config.bundles.find(bundleConfig => {
this.ssrBundle = this.config.bundles.find((bundleConfig) => {
return bundleConfig.outlet === this.ssrOutlet.id;

@@ -35,3 +35,3 @@ });

MendelTrees.prototype.findTreeForVariations = function(bundle, lookupChains) {
MendelTrees.prototype.findTreeForVariations = function (bundle, lookupChains) {
var finder = new MendelVariationWalker(

@@ -47,3 +47,6 @@ lookupChains,

MendelTrees.prototype.findServerVariationMap = function(bundles, lookupChains) {
MendelTrees.prototype.findServerVariationMap = function (
bundles,
lookupChains
) {
if (!this.ssrBundle)

@@ -64,3 +67,3 @@ throw new Error(

MendelTrees.prototype.findTreeForHash = function(bundle, hash) {
MendelTrees.prototype.findTreeForHash = function (bundle, hash) {
var finder = new MendelHashWalker(hash);

@@ -73,3 +76,3 @@

MendelTrees.prototype._loadBundles = function() {
MendelTrees.prototype._loadBundles = function () {
var self = this;

@@ -79,25 +82,30 @@ this.bundles = {};

confBundles.filter(bundle => bundle.manifest).forEach(function(bundle) {
var bundlePath = bundle.manifest;
try {
self.bundles[bundle.id] = require(path.resolve(bundlePath));
} catch (error) {
var newError = new Error();
newError.code = error.code;
if (error.code === 'MODULE_NOT_FOUND' || error.code === 'ENOENT') {
newError.message =
'Could not find "' +
bundle.id +
'" bundle at path ' +
bundlePath;
} else {
newError.message =
'Invalid bundle file at path ' + bundle.manifest;
confBundles
.filter((bundle) => bundle.manifest)
.forEach(function (bundle) {
var bundlePath = bundle.manifest;
try {
self.bundles[bundle.id] = require(path.resolve(bundlePath));
} catch (error) {
var newError = new Error();
newError.code = error.code;
if (
error.code === 'MODULE_NOT_FOUND' ||
error.code === 'ENOENT'
) {
newError.message =
'Could not find "' +
bundle.id +
'" bundle at path ' +
bundlePath;
} else {
newError.message =
'Invalid bundle file at path ' + bundle.manifest;
}
throw newError;
}
throw newError;
}
});
});
};
MendelTrees.prototype._walkTree = function(bundle, finder) {
MendelTrees.prototype._walkTree = function (bundle, finder) {
var tree = this.bundles[bundle];

@@ -113,3 +121,3 @@

MendelTrees.prototype.variationsAndChains = function(lookFor) {
MendelTrees.prototype.variationsAndChains = function (lookFor) {
var lookupChains = [];

@@ -116,0 +124,0 @@ var matchingVariations = [];

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