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/node_modules/ |
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Copyright (c) 2012, Andreas Lind Petersen | ||
All rights reserved. | ||
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||
Redistribution and use in source and binary forms, with or without | ||
modification, are permitted provided that the following conditions are | ||
met: | ||
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* Redistributions of source code must retain the above copyright | ||
notice, this list of conditions and the following disclaimer. | ||
* Redistributions in binary form must reproduce the above copyright | ||
notice, this list of conditions and the following disclaimer in | ||
the documentation and/or other materials provided with the | ||
distribution. | ||
* Neither the name of the author nor the names of contributors may | ||
be used to endorse or promote products derived from this | ||
software without specific prior written permission. | ||
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | ||
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | ||
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | ||
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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express-compiless | ||
================= | ||
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Middleware that compiles less to css on-the-fly. Intended to be used | ||
in a development setting with the `connect.static` middleware, but | ||
should work with any middleware further down the stack, as long as a | ||
`text/less` response is served. Or if the `Content-Type` of the | ||
response is `application/octet-stream` and the request url ends in | ||
`.less`. | ||
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Installation | ||
------------ | ||
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Make sure you have node.js and npm installed, then run: | ||
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npm install express-compiless | ||
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Example usage | ||
------------- | ||
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```javascript | ||
var express = require('express'), | ||
compiless = require('express-compiless'), | ||
root = '/path/to/my/static/files'; | ||
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express.createServer() | ||
.use(compiless({root: root})) | ||
.use(express.static(root)) | ||
.listen(1337, done); | ||
``` | ||
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License | ||
------- | ||
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3-clause BSD license -- see the `LICENSE` file for details. |
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var Path = require('path'), | ||
less = require('less'); | ||
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require('express-hijackresponse'); | ||
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module.exports = function compiless(options) { | ||
if (!options || !options.root) { | ||
throw new Error('options.root is mandatory'); | ||
} | ||
return function (req, res, next) { | ||
if (req.accepts('text/css')) { | ||
res.hijack(function (err, res) { | ||
if (res.statusCode !== 200) { | ||
return res.unhijack(true); | ||
} | ||
var contentType = res.getHeader('Content-Type'), | ||
matchContentType = contentType && contentType.match(/^text\/less(?:;\s*charset=([a-z0-9\-]+))?$/i); | ||
// The mime module doesn't support less yet, so we fall back: | ||
if (matchContentType || contentType === 'application/octet-stream' && /\.less(?:\?.*)?$/.test(req.url)) { | ||
// If there's an ETag, make sure it's different from the original one so the downstream middleware | ||
// won't reply with a false positive 304 on the same URL after compiless has been enabled or disabled: | ||
var etag = res.getHeader('ETag'); | ||
if (etag) { | ||
res.setHeader('ETag', '"' + etag.replace(/^"|"$/g, '') + '-compiless"'); | ||
} | ||
delete req.headers['if-modified-since']; // Prevent false positive conditional GETs after enabling compiless | ||
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var chunks = []; | ||
res.on('error', function () { | ||
res.unhijack(); | ||
next(); | ||
}).on('data', function (chunk) { | ||
chunks.push(chunk); | ||
}).on('end', function () { | ||
var lessText = Buffer.concat(chunks).toString('utf-8'), // No other charsets are really relevant, right? | ||
baseDir = Path.resolve(options.root, req.url.replace(/\/[^\/]*(?:\?.*)?$/, '/').substr(1)), | ||
hasResponded = false; | ||
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// Unfortunately less.render throws errors in async code instead of passing it to our callback. | ||
// Hopefully the solution for https://github.com/cloudhead/less.js/issues/462 will remedy this. | ||
less.render(lessText, {paths: [baseDir]}, function (err, cssText) { | ||
if (err) { | ||
return res.send(500); | ||
} | ||
res.setHeader('Content-Type', 'text/css'); | ||
res.setHeader('Content-Length', Buffer.byteLength(cssText)); | ||
res.end(cssText); | ||
}); | ||
}); | ||
} else { | ||
res.unhijack(true); | ||
} | ||
}); | ||
next(); | ||
} | ||
}; | ||
}; |
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{ | ||
"name": "express-compiless", | ||
"version": "0.0.1", | ||
"description": "Express middleware that compiles less files to css on the way out.", | ||
"main": "lib/index.js", | ||
"scripts": { | ||
"test": "echo \"Error: no test specified\" && exit 1" | ||
}, | ||
"repository": { | ||
"type": "git", | ||
"url": "git://github.com/papandreou/express-compiless" | ||
}, | ||
"keywords": [ | ||
"less", | ||
"css", | ||
"express", | ||
"compiler", | ||
"middleware" | ||
], | ||
"author": "Andreas Lind Petersen <andreas@one.com>", | ||
"license": "BSD", | ||
"dependencies": { | ||
"express-hijackresponse": "=0.0.7", | ||
"less": "=1.3.0", | ||
"passerror": "=0.0.1" | ||
}, | ||
"devDependencies": { | ||
"express": "=2.5.11", | ||
"mocha": "=1.5.0", | ||
"request": "=2.11.4" | ||
} | ||
} |
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var express = require('express'), | ||
Path = require('path'), | ||
request = require('request'), | ||
passError = require('passerror'), | ||
expect = require('expect.js'), | ||
compiless = require('../lib/'); | ||
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describe('test server', function () { | ||
var root = Path.resolve(__dirname, 'root'), | ||
// Pick a random TCP port above 10000 (.listen(0) doesn't work anymore?) | ||
portNumber = 10000 + Math.floor(55536 * Math.random()), | ||
baseUrl = 'http://127.0.0.1:' + portNumber, | ||
server; | ||
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before(function (done) { | ||
server = express.createServer() | ||
.use(compiless({root: root})) | ||
.use(express.static(root)) | ||
.listen(portNumber, done); | ||
}); | ||
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after(function () { | ||
server.close(); | ||
}); | ||
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it('request for non-less file', function (done) { | ||
request(baseUrl + '/something.txt', passError(done, function (response, body) { | ||
expect(body).to.equal("foo\n"); | ||
expect(response.headers['content-type']).to.equal('text/plain; charset=UTF-8'); | ||
done(); | ||
})); | ||
}); | ||
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it('request for less file with @import', function (done) { | ||
request(baseUrl + '/stylesheet.less', passError(done, function (response, body) { | ||
expect(body).to.equal('body {\n width: 100%;\n}\n#foo #bar {\n color: red;\n}\n'); | ||
expect(response.headers['content-type']).to.equal('text/css'); | ||
done(); | ||
})); | ||
}); | ||
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// Unfortunately less.render throws instead of passing the error to our callback. | ||
// Hopefully the solution for https://github.com/cloudhead/less.js/issues/462 will remedy this. | ||
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/* | ||
it('request for less file with syntax error', function (done) { | ||
request(baseUrl + '/syntaxerror.less', passError(done, function (response, body) { | ||
expect(response.statusCode).to.equal(500); | ||
done(); | ||
})); | ||
}); | ||
it('request for less file with @import error', function (done) { | ||
request(baseUrl + '/importerror.less', passError(done, function (response, body) { | ||
expect(response.statusCode).to.equal(500); | ||
done(); | ||
})); | ||
}); | ||
*/ | ||
}); |
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@import "notfound.less"; |
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body { | ||
width: 100%; | ||
} |
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foo |
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@import "imports/a.less"; | ||
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#foo { | ||
#bar { | ||
color: red; | ||
} | ||
} |
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body { |