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var path = require('path');
var fs = require('fs');
var util = require('util');
var istanbul = require('istanbul');
var dateformat = require('dateformat');
var globalSourceCache = require('./sourceCache');
var Store = istanbul.Store;
var SourceCacheStore = function(opts) {
Store.call(this, opts);
opts = opts || {};
this.sourceCache = opts.sourceCache;
};
SourceCacheStore.TYPE = 'sourceCacheLookup';
util.inherits(SourceCacheStore, Store);
Store.mix(SourceCacheStore, {
keys : function() {
throw 'not implemented';
},
get : function(key) {
return this.sourceCache[key];
},
hasKey : function(key) {
return this.sourceCache.hasOwnProperty(key);
},
set : function(key, contents) {
throw 'not applicable';
}
});
// TODO(vojta): inject only what required (config.basePath, config.coverageReporter)
var CoverageReporter = function(rootConfig, helper, logger) {
var log = logger.create('coverage');
var config = rootConfig.coverageReporter || {};
var basePath = rootConfig.basePath;
var reporters = config.reporters;
var sourceCache = globalSourceCache.getByBasePath(basePath);
if (!helper.isDefined(reporters)) {
reporters = [config];
}
this.adapters = [];
var collectors;
var pendingFileWritings = 0;
var fileWritingFinished = function() {};
function writeEnd() {
if (!--pendingFileWritings) {
// cleanup collectors
Object.keys(collectors).forEach(function(key) {
collectors[key].dispose();
});
fileWritingFinished();
}
}
/**
* Generate the output directory from the `coverageReporter.dir` and
* `coverageReporter.subdir` options.
*
* @param {String} browserName - The browser name
* @param {String} dir - The given option
* @param {String|Function} subdir - The given option
*
* @return {String} - The output directory
*/
function generateOutputDir(browserName, dir, subdir) {
dir = dir || 'coverage';
subdir = subdir || browserName;
if (typeof subdir === 'function') {
subdir = subdir(browserName);
}
return path.join(dir, subdir);
}
this.onRunStart = function(browsers) {
collectors = Object.create(null);
// TODO(vojta): remove once we don't care about Karma 0.10
if (browsers) {
browsers.forEach(function(browser) {
collectors[browser.id] = new istanbul.Collector();
});
}
};
this.onBrowserStart = function(browser) {
collectors[browser.id] = new istanbul.Collector();
};
this.onBrowserComplete = function(browser, result) {
var collector = collectors[browser.id];
if (!collector) {
return;
}
if (result && result.coverage) {
collector.add(result.coverage);
}
};
this.onSpecComplete = function(browser, result) {
if (result.coverage) {
collectors[browser.id].add(result.coverage);
}
};
this.onRunComplete = function(browsers) {
reporters.forEach(function(reporterConfig) {
browsers.forEach(function(browser) {
var collector = collectors[browser.id];
if (collector) {
pendingFileWritings++;
var outputDir = helper.normalizeWinPath(path.resolve(basePath, generateOutputDir(browser.name,
reporterConfig.dir || config.dir,
reporterConfig.subdir || config.subdir)));
helper.mkdirIfNotExists(outputDir, function() {
log.debug('Writing coverage to %s', outputDir);
var options = helper.merge({}, reporterConfig, {
dir : outputDir,
sourceStore : new SourceCacheStore({
sourceCache: sourceCache
})
});
var reporter = istanbul.Report.create(reporterConfig.type || 'html', options);
try {
reporter.writeReport(collector, true);
} catch (e) {
log.error(e);
}
writeEnd();
});
}
});
});
};
this.onExit = function(done) {
if (pendingFileWritings) {
fileWritingFinished = done;
} else {
done();
}
};
};
CoverageReporter.$inject = ['config', 'helper', 'logger'];
// PUBLISH
module.exports = CoverageReporter;
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