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175 lines (152 loc) · 5.46 KB
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'use strict';
var url = require('url'),
path = require('path'),
format = require('util').format,
fs = require('fs'),
yaml = require('js-yaml'),
inherit = require('inherit'),
GeminiError = require('../errors/gemini-error'),
options = require('./options');
module.exports = inherit({
__constructor: function(configData, cliOptions) {
var filePath;
if (typeof configData === 'string') {
filePath = configData;
configData = readConfigData(filePath);
}
//this.projectRoot should be assigned before any options parsing
//has taken place
if (!configData.projectRoot) {
throw new GeminiError('Field "projectRoot" is required when creating config programmatically');
}
this.projectRoot = path.resolve(configData.projectRoot);
this._checkForUnknownOptions(configData);
cliOptions = cliOptions || {};
Object.keys(options).forEach(function(property) {
if (this[property]) {
return;
}
var option = options[property],
value;
if (option.env && option.env in process.env) {
value = process.env[option.env];
} else if (option.override && property in cliOptions) {
value = cliOptions[property];
} else if (property in configData) {
value = configData[property];
} else if ('default' in option) {
value = option.default;
if (typeof value === 'function') {
value = value(this);
}
} else if (option.required) {
var message = format('Field "%s" is not specified', property);
if (filePath) {
message += ' in config file ' + filePath;
}
throw new GeminiError(
message,
format('Specify "%s" field', property)
);
}
if (typeof value === 'undefined') {
return;
}
if (option.validate) {
if (typeof value !== option.validate) {
throw new GeminiError(format('Field "%s" must be %s', property, option.validate));
}
}
if (option.map) {
value = option.map(value, this);
}
this[property] = value;
}, this);
this._checkGridUrl();
},
_checkForUnknownOptions: function(configData) {
Object.keys(configData).forEach(function(property) {
if (!options.hasOwnProperty(property)) {
throw new GeminiError(
format('Unknown config option: "%s"', property),
'List of the valid options:\n' +
'https://github.com/bem/gemini#configuration'
);
}
});
},
_checkGridUrl: function() {
if (!this.gridUrl && this._requiresGrid()) {
throw new GeminiError(
'Field "gridUrl" is required for using non-phantomjs browsers',
[
'Specify selenium grid URL in your config file or use only',
'phantomjs browser.',
'Selenium server installation instructions:',
'',
'https://code.google.com/p/selenium/wiki/Grid2'
].join('\n')
);
}
},
_requiresGrid: function() {
return Object.keys(this.browsers).some(function(name) {
return this.browsers[name].browserName !== 'phantomjs';
}, this);
},
getAbsoluteUrl: function getAbsoluteUrl(relUrl) {
return url.resolve(this.rootUrl, relUrl);
},
getScreenshotsDir: function(suite, state) {
return path.resolve(this.screenshotsDir, this._getPathForSuite(suite), state);
},
getScreenshotPath: function getScrenshotPath(suite, state, browser) {
return path.join(this.getScreenshotsDir(suite, state), browser + '.png');
},
_getPathForSuite: function(suite) {
var result = '';
while (suite) {
result = path.join(suite.name, result);
suite = suite.parent;
}
return result;
}
});
function readConfigData(filePath) {
var configData = readYAMLFile(filePath),
configDir = path.dirname(filePath);
if (configData.projectRoot) {
configData.projectRoot = path.resolve(configDir, configData.projectRoot);
} else {
configData.projectRoot = configDir;
}
return configData;
}
function readYAMLFile(configPath) {
var text = readFile(configPath);
return parseYAML(text, configPath);
}
function readFile(configPath) {
try {
return fs.readFileSync(configPath, 'utf8');
} catch (e) {
if (e.code === 'ENOENT') {
throw new GeminiError(
'Config file does not exist: ' + configPath,
'Specify config file or configure your project by following\nthe instructions:\n\n' +
'https://github.com/bem/gemini#configuration'
);
}
throw e;
}
}
function parseYAML(source, filename) {
try {
return yaml.safeLoad(source);
} catch (e) {
throw new GeminiError('Error while parsing a config file: ' + filename + '\n' +
e.reason + ' ' + e.mark,
'Gemini config should be valid YAML file.'
);
}
}