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 | 1×
1×
1×
1×
194×
1×
194×
194×
194×
194×
194×
1×
8×
1×
7×
7×
7×
7×
7×
7×
1×
1×
1×
21×
21×
1×
22×
7×
22×
7×
7×
7×
28×
28×
7×
22×
1×
21×
1×
194×
194×
194×
194×
194×
30×
30×
2×
28×
4×
24×
28×
194×
194×
4×
4×
1×
4×
1×
21×
21×
97×
97×
97×
97×
97×
97×
16×
97×
21×
1×
7×
7×
58×
47×
11×
1×
10×
7×
1×
610×
1×
| var Filter = require('broccoli-filter');
var path = require('path');
var Cache = require('broccoli-filter/lib/cache');
function normalize(str) {
return str.replace(/[\\\/]+/g, '/');
}
function relative(a, b) {
Eif (/\./.test(path.basename(a))) {
a = path.dirname(a);
}
var relativePath = path.relative(a, b);
// path.relative might have added back \-s on windows
relativePath = normalize(relativePath);
return relativePath.charAt(0) !== '.' ? './' + relativePath : relativePath;
}
function AssetRewrite(inputNode, options) {
if (!(this instanceof AssetRewrite)) {
return new AssetRewrite(inputNode, options);
}
options = options || {};
Filter.call(this, inputNode, {
extensions: options.replaceExtensions || ['html', 'css'],
// We should drop support for `description` in the next major release
annotation: options.description || options.annotation
});
this.assetMap = options.assetMap || {};
this.prepend = options.prepend || '';
this.ignore = options.ignore || []; // files to ignore
this.assetMapKeys = null;
}
AssetRewrite.prototype = Object.create(Filter.prototype);
AssetRewrite.prototype.constructor = AssetRewrite;
AssetRewrite.prototype.processAndCacheFile = function (srcDir, destDir, relativePath) {
this._cache = new Cache();
return Filter.prototype.processAndCacheFile.apply(this, arguments);
}
/**
* Checks that file is not being ignored and destination doesn't already have a file
* @param relativePath
* @returns {boolean}
*/
AssetRewrite.prototype.canProcessFile = function(relativePath) {
if (!this.assetMapKeys) {
this.generateAssetMapKeys();
}
if (!this.inverseAssetMap) {
var inverseAssetMap = {};
var assetMap = this.assetMap;
Object.keys(assetMap).forEach(function(key) {
var value = assetMap[key];
inverseAssetMap[value] = key;
}, this);
this.inverseAssetMap = inverseAssetMap;
}
/*
* relativePath can be fingerprinted or not.
* Check that neither of these variations are being ignored
*/
if (this.ignore.indexOf(relativePath) !== -1 || this.ignore.indexOf(this.inverseAssetMap[relativePath]) !== -1) {
return false;
}
return Filter.prototype.canProcessFile.apply(this, arguments);
}
AssetRewrite.prototype.rewriteAssetPath = function (string, assetPath, replacementPath) {
var newString = string;
/*
* Replace all of the assets with their new fingerprint name
*
* Uses a regular expression to find assets in html tags, css backgrounds, handlebars pre-compiled templates, etc.
*
* ["\'\\(=]{1} - Match one of "'(= exactly one time
* \\s* - Any amount of white space
* ( - Starts the first pattern match
* [^"\'\\(\\)=]* - Do not match any of ^"'()= 0 or more times
* /([.*+?^=!:${}()|\[\]\/\\])/g - Replace .*+?^=!:${}()|[]/\ in filenames with an escaped version for an exact name match
* [^"\'\\(\\)\\\\>=]* - Do not match any of ^"'()\>= 0 or more times - Explicitly add \ here because of handlebars compilation
* ) - End first pattern match
* \\s* - Any amount of white space
* [\\\\]* - Allow any amount of \ - For handlebars compilation (includes \\\)
* \\s* - Any amount of white space
* ["\'\\)> ]{1} - Match one of "'( > exactly one time
*/
var re = new RegExp('["\'\\(=]{1}\\s*([^"\'\\(\\)=]*' + escapeRegExp(assetPath) + '[^"\'\\(\\)\\\\>=]*)\\s*[\\\\]*\\s*["\'\\)> ]{1}', 'g');
var match = null;
/*
* This is to ignore matches that should not be changed
* Any URL encoded match that would be ignored above will be ignored by this: "'()=\
*/
var ignoreLibraryCode = new RegExp('(%22|%27|%5C|%28|%29|%3D)[^"\'\\(\\)=]*' + escapeRegExp(assetPath));
while (match = re.exec(newString)) {
var replaceString = '';
if (ignoreLibraryCode.exec(match[1])) {
continue;
}
if (this.prepend && this.prepend !== '') {
replaceString = this.prepend + replacementPath;
} else {
replaceString = match[1].replace(assetPath, replacementPath);
}
newString = newString.replace(new RegExp(escapeRegExp(match[1]), 'g'), replaceString);
}
var self = this;
return newString.replace(new RegExp('sourceMappingURL=' + escapeRegExp(assetPath)), function(wholeMatch) {
var replaceString = replacementPath;
if (self.prepend && self.prepend !== '' && (!/^sourceMappingURL=(http|https|\/\/)/.test(wholeMatch))) {
replaceString = self.prepend + replacementPath;
}
return wholeMatch.replace(assetPath, replaceString);
});
};
AssetRewrite.prototype.processString = function (string, relativePath) {
var newString = string;
for (var i = 0, keyLength = this.assetMapKeys.length; i < keyLength; i++) {
var key = this.assetMapKeys[i];
Eif (this.assetMap.hasOwnProperty(key)) {
/*
* Rewrite absolute URLs
*/
newString = this.rewriteAssetPath(newString, key, this.assetMap[key]);
/*
* Rewrite relative URLs. If there is a prepend, use the full absolute path.
*/
var pathDiff = relative(relativePath, key).replace(/^\.\//, "");
var replacementDiff = relative(relativePath, this.assetMap[key]).replace(/^\.\//, "");
if (this.prepend && this.prepend !== '') {
replacementDiff = this.assetMap[key];
}
newString = this.rewriteAssetPath(newString, pathDiff, replacementDiff);
}
}
return newString;
};
AssetRewrite.prototype.generateAssetMapKeys = function () {
var keys = Object.keys(this.assetMap);
keys.sort(function (a, b) {
if (a.length < b.length) {
return 1;
}
if (a.length > b.length) {
return -1;
}
return 0;
});
this.assetMapKeys = keys;
};
function escapeRegExp(string) {
return string.replace(/([.*+?^${}()|\[\]\/\\])/g, "\\$1");
}
module.exports = AssetRewrite;
|