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Adds css import preprocessing

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This commit is contained in:
Yury Delendik 2014-09-10 11:10:04 -05:00
parent f5d416cfdf
commit 5b93cc102c
2 changed files with 45 additions and 8 deletions
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22
external/builder/builder.js vendored
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@ -123,6 +123,15 @@ function preprocessCSS(mode, source, destination) {
deprecatedInMozcentral.test(line));
}
function expandImports(content, baseUrl) {
return content.replace(/^\s*@import\s+url\(([^\)]+)\);\s*$/gm,
function(all, url) {
var file = path.join(path.dirname(baseUrl), url);
var imported = fs.readFileSync(file, 'utf8').toString();
return expandImports(imported, file);
});
}
function removePrefixed(content, hasPrefixedFilter) {
var lines = content.split(/\r?\n/g);
var i = 0;
@ -168,14 +177,17 @@ function preprocessCSS(mode, source, destination) {
return lines.join('\n');
}
if (mode !== 'firefox' && mode !== 'mozcentral') {
if (!mode) {
throw new Error('Invalid CSS preprocessor mode');
}
var content = fs.readFileSync(source, 'utf8');
var out = removePrefixed(content,
mode === 'mozcentral' ? hasPrefixedMozcentral : hasPrefixedFirefox);
fs.writeFileSync(destination, out);
var content = fs.readFileSync(source, 'utf8').toString();
content = expandImports(content, source);
if (mode === 'mozcentral' || mode === 'firefox') {
content = removePrefixed(content, mode === 'mozcentral' ?
hasPrefixedMozcentral : hasPrefixedFirefox);
}
fs.writeFileSync(destination, content);
}
exports.preprocessCSS = preprocessCSS;