81 lines
2.7 KiB
JavaScript
81 lines
2.7 KiB
JavaScript
var fs = require('fs');
|
|
var path = require('path');
|
|
var commondir = require('commondir');
|
|
|
|
/**
|
|
* Add boot instructions to a browserify bundler.
|
|
* @param {Object} instructions Boot instructions.
|
|
* @param {Object} bundler A browserify object created by `browserify()`.
|
|
*/
|
|
|
|
module.exports = function addInstructionsToBrowserify(instructions, bundler) {
|
|
bundleModelScripts(instructions, bundler);
|
|
bundleOtherScripts(instructions, bundler);
|
|
bundleInstructions(instructions, bundler);
|
|
};
|
|
|
|
function bundleOtherScripts(instructions, bundler) {
|
|
for (var key in instructions.files) {
|
|
addScriptsToBundle(key, instructions.files[key], bundler);
|
|
}
|
|
}
|
|
|
|
function bundleModelScripts(instructions, bundler) {
|
|
var files = instructions.models
|
|
.map(function(m) { return m.sourceFile; })
|
|
.filter(function(f) { return !!f; });
|
|
|
|
var modelToFileMapping = instructions.models
|
|
.map(function(m) { return files.indexOf(m.sourceFile); });
|
|
|
|
addScriptsToBundle('models', files, bundler);
|
|
|
|
// Update `sourceFile` properties with the new paths
|
|
modelToFileMapping.forEach(function(fileIx, modelIx) {
|
|
if (fileIx === -1) return;
|
|
instructions.models[modelIx].sourceFile = files[fileIx];
|
|
});
|
|
}
|
|
|
|
function addScriptsToBundle(name, list, bundler) {
|
|
if (!list.length) return;
|
|
|
|
var root = commondir(list.map(path.dirname));
|
|
|
|
for (var ix in list) {
|
|
var filepath = list[ix];
|
|
|
|
// Build a short unique id that does not expose too much
|
|
// information about the file system, but still preserves
|
|
// useful information about where is the file coming from.
|
|
var fileid = 'loopback-boot#' + name + '#' + path.relative(root, filepath);
|
|
|
|
// Add the file to the bundle.
|
|
bundler.require(filepath, { expose: fileid });
|
|
|
|
// Rewrite the instructions entry with the new id that will be
|
|
// used to load the file via `require(fileid)`.
|
|
list[ix] = fileid;
|
|
}
|
|
}
|
|
|
|
function bundleInstructions(instructions, bundler) {
|
|
var instructionsString = JSON.stringify(instructions, null, 2);
|
|
|
|
/* The following code does not work due to a bug in browserify
|
|
* https://github.com/substack/node-browserify/issues/771
|
|
var instructionsStream = require('resumer')()
|
|
.queue(instructionsString);
|
|
instructionsStream.path = 'boot-instructions';
|
|
b.require(instructionsStream, { expose: 'loopback-boot#instructions' });
|
|
*/
|
|
|
|
// Write the instructions to a file in our node_modules folder.
|
|
// The location should not really matter as long as it is .gitignore-ed
|
|
var instructionsFile = path.resolve(__dirname,
|
|
'..', 'node_modules', 'instructions.json');
|
|
|
|
fs.writeFileSync(instructionsFile, instructionsString, 'utf-8');
|
|
bundler.require(instructionsFile, { expose: 'loopback-boot#instructions' });
|
|
}
|