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Copy pathcoverage.js
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148 lines (128 loc) · 4.38 KB
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'use strict';
var inherit = require('inherit'),
path = require('path'),
url = require('url'),
q = require('q'),
qfs = require('q-io/fs'),
http = require('q-io/http'),
css = require('css'),
hb = require('handlebars');
module.exports = inherit({
__constructor: function(config) {
this.config = config;
this.stats = [];
},
addStats: function(stats) {
this.stats.push(stats);
},
processStats: function() {
var byfile = {};
this.stats.forEach(function(stat) {
Object.keys(stat).forEach(function(file) {
var rules = byfile[file] = byfile[file] || {};
Object.keys(stat[file]).forEach(function(rule) {
if (!rules[rule]) {
rules[rule] = stat[file][rule];
}
});
});
});
return qfs.makeDirectory('gemini-coverage')
.fail(function(err) {
// ignoring the fail if directory already exists.
if (err.code !== 'EEXIST') {
return q.reject(err);
}
})
.then(function() {
return qfs.read(path.join(__dirname, 'coverage.hbs'));
})
.then(function(tmpl) {
return q.all(Object.keys(byfile).map(function(file) {
return http.read({url: file})
.then(function(fileContent) {
fileContent += '';
var line = 0,
lines = fileContent.replace(/\\r\\n/g, '\n').split('\n'),
ast = css.parse(fileContent),
ctx = {
media: 0
},
out = [];
for (var r = 0; r < ast.stylesheet.rules.length; r++) {
line = processRule(
ast.stylesheet.rules[r],
{
line: line,
lines: lines,
byfile: byfile,
file: file,
out: out
},
ctx);
}
return qfs.write(
path.join('gemini-coverage', url.parse(file).pathname.replace(/\//g, '_') + '.html'),
hb.compile(tmpl)({blocks: out}));
});
}));
});
}
});
function processRule(rule, opts, ctx) {
var line = opts.line;
if (rule.type !== 'rule') {
if (rule.type === 'media') {
rule.rules.forEach(function(childRule) {
line = processRule(
childRule,
{
line: line,
lines: opts.lines,
byfile: opts.byfile,
file: opts.file,
out: opts.out,
group: true
},
ctx);
});
ctx.media++;
}
if (line < rule.position.end.line) {
line = pushLines(line, rule.position.end.line, opts);
}
return line;
}
line = pushLines(line, rule.position.start.line - 1, opts);
var cls = 'none';
for (var sel = 0; sel < rule.selectors.length; sel++) {
var key = rule.selectors[sel];
if (opts.group) {
key = '?' + ctx.media + ':' + key;
}
var selector = opts.byfile[opts.file][key];
if (selector) {
cls = 'partial';
if (selector.within) {
cls = 'covered';
}
break;
}
}
line = pushLines(line, rule.position.end.line, opts);
opts.out[opts.out.length - 1].type = cls;
return line;
}
function pushLines(line, till, opts) {
var data = [];
for (var l = line; l < till; l++, line = l) {
data.push(opts.lines[l]);
}
opts.out.push(
{
type: 'normal',
content: data.join('\n')
}
);
return line;
}