/
export.js
247 lines (214 loc) · 6.66 KB
/
export.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
var _ = require('lodash');
var fs = require('fs-extra');
var path = require('path');
var denodeify = require("pdenodeify");
var eachGraph = require("../graph/each_dependencies");
var transformImport = require("../build/transform");
var helpers = require('./helpers/helpers');
var winston = require('winston');
var logging = require("../logger");
var mergeModules = function(items, modules){
var i = 0,
item;
while(i < items.length) {
item = items[i];
if(typeof item === "object" && !(item instanceof RegExp) ) {
var moduleNames = _.map( _.filter(modules, item), "moduleName");
items.splice.apply(items,[i,1].concat(moduleNames));
i = i + moduleNames.length;
} else {
i++;
}
}
};
var addDefaults = function(name, obj, defaults){
var helpers = [];
name.replace(/\+([\w-]+)/g,function(whole, part){
var defs = defaults[part];
if(defs) {
if(typeof defs === "function") {
defs = defs(obj);
_.assign(obj, defs);
} else {
_.defaults(obj, defs);
}
helpers.push(part);
}
});
if(helpers.length) {
winston.debug(" added helpers: "+helpers.join(","));
}
};
/**
* Normalize module names
* @param {string|Array.<string>} mods A module name (or a list of them)
* @return {Array.<Promise.<string>>} An array of promises that resolved
* to normalized module names.
*/
function normalize(loader, mods) {
var modNames = (mods && !Array.isArray(mods)) ? [mods] : mods;
return (modNames || []).map(function(moduleName) {
return !_.isString(moduleName) ?
Promise.resolve(moduleName) :
loader.normalize(moduleName);
});
}
function writeFile(filename, data, config) {
var code = data.code;
var map = data.map;
var mkdir = denodeify(fs.mkdirs);
var writeFile = denodeify(fs.writeFile);
return mkdir(path.dirname(filename))
.then(function() {
return writeFile(filename, code);
})
.then(function() {
var sourceMaps = map && config.options &&
config.options.sourceMaps;
if (sourceMaps) {
return writeFile(filename + ".map", map+"");
}
});
}
// config {steal: {}, options: {}, outputs: {}}
module.exports = function(config, defaults, modules){
logging.setup(config.options || {}, config.steal || {});
// allow defaults that overwrite our helpers
var defaultHelpers = _.assign(_.clone(helpers), defaults);
// converts to an array of outputs
config.outputs = _.map(
config.outputs || config.transforms,
function(output, name) {
addDefaults(name, output, defaultHelpers || {}, config.options || {});
// merge modules and graphs
mergeModules(output.modules || [], modules);
mergeModules(output.eachModule || [], modules);
mergeModules(output.graphs || [], modules);
mergeModules(output.ignore || [], modules);
return {
name: name,
output: output
};
}
);
var transformAndWriteOut = function(transform, moduleNames, out, outputOptions) {
var modulesMap = _.keyBy(modules, "moduleName");
var options = _.assign({}, outputOptions, out.output, {
ignore: outputOptions.ignore || out.output.ignore
});
var result = transform(moduleNames, options);
var filePath;
if (_.isUndefined(out.output.dest)) {
return Promise.reject(new Error(
"Attribute 'dest' is required\n" +
"Add 'dest' to the ExportOutput object.\n" +
"See http://stealjs.com/docs/steal-tools.export.output.html#dest for more details."
));
}
else if (_.isString(out.output.dest)) {
filePath = out.output.dest;
}
else if (_.isFunction(out.output.dest)) {
// pull out the load objects of the modules being written out
var loads = (_.isString(moduleNames) ?
transform.graph[moduleNames].load :
moduleNames.map(function(moduleName){
return transform.graph[moduleName].load;
}));
filePath = out.output.dest(moduleNames,
modulesMap[moduleNames], loads, transform.loader);
}
winston.info("> " + filePath);
return writeFile(filePath, result, config);
};
var processOutput = function(transform, out) {
winston.info("OUTPUT: " + out.name);
var modsPromise;
var doTransform;
var loader = transform.loader;
// write out each module and its dependencies in the list
if(out.output.eachModule) {
if (Array.isArray(out.output.eachModule)) {
modsPromise = normalize(loader, out.output.eachModule);
}
else {
modsPromise = normalize(loader, _.map(
_.filter(modules, out.output.eachModule),
"moduleName"
));
}
doTransform = function(mods, ignores){
return Promise.all(mods.map(function(mod) {
return transformAndWriteOut(transform, mod, out, {
ignore: ignores
});
}));
};
// write out the graphs
} else if(out.output.graphs){
if (typeof out.output.graphs === "function") {
modsPromise = normalize(loader, out.output.graphs(loader));
}
else {
modsPromise = normalize(loader, out.output.graphs);
}
doTransform = function(mods, ignores) {
var promises = [];
eachGraph(transform.graph, mods, function(name, node) {
if(node && !transformImport.matches(ignores, name, node.load)) {
var promise = transformAndWriteOut(transform, name, out, {
ignoreAllDependencies: true
});
promises.push(promise);
}
});
return Promise.all(promises);
};
// write out all the modules combined
} else {
if(Array.isArray( out.output.modules) ) {
modsPromise = normalize(loader, out.output.modules);
} else if(typeof out.output.modules === "function"){
modsPromise = normalize(loader, out.output.modules(loader));
} else if(out.output.modules) {
modsPromise = normalize(loader, [out.output.modules]);
}
doTransform = function(mods, ignores){
return transformAndWriteOut(transform, mods, out, {
ignore: ignores
});
};
}
var normalized;
return Promise.all(modsPromise)
.then(function(mods) {
normalized = mods;
var ignore = out.output.ignore || [];
return Promise.all(normalize(loader, ignore));
})
.then(function(outputIgnore){
var ignores = transformImport
.getAllIgnores(outputIgnore, transform.graph);
return doTransform(normalized, ignores);
});
};
if (!config.steal) {
var message;
if(config.system) {
message = "The 'system' option was removed in 1.0, use 'steal' instead: http://stealjs.com/docs/steal-tools.export.object.html";
} else {
message = "A 'steal' option is required.";
}
return Promise.reject(new Error(message));
}
return transformImport(config.steal, config.options)
.then(function(configPluginify){
var buildResult = configPluginify.data;
return Promise.all(config.outputs.map(function(out) {
return processOutput(configPluginify, out);
}))
.then(function(){
return buildResult;
});
});
};