node-query/node_modules/grunt-istanbul/node_modules/istanbul/lib/configuration.js

224 lines
6.0 KiB
JavaScript

/*
Copyright (c) 2013, Yahoo! Inc. All rights reserved.
Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
*/
var path = require('path'),
fs = require('fs'),
CAMEL_PATTERN = /([a-z])([A-Z])/g,
YML_PATTERN = /\.ya?ml$/,
yaml = require('js-yaml'),
defaults = require('./report/common/defaults');
function defaultConfig() {
var ret = {
verbose: false,
instrumentation: {
root: '.',
'default-excludes': true,
excludes: [],
'embed-source': false,
variable: '__coverage__',
compact: true,
'preserve-comments': false,
'complete-copy': false,
'save-baseline': false,
'baseline-file': './coverage/coverage-baseline.json',
'preload-sources': false
},
reporting: {
print: 'summary',
reports: [ 'lcov' ],
dir: './coverage'
},
hooks: {
'hook-run-in-context': false,
'post-require-hook': null,
'handle-sigint': false
}
};
ret.reporting.watermarks = defaults.watermarks();
return ret;
}
function dasherize(word) {
return word.replace(CAMEL_PATTERN, function (match, lch, uch) {
return lch + '-' + uch.toLowerCase();
});
}
function isScalar(v) {
if (v === null) { return true; }
return v !== undefined && !Array.isArray(v) && typeof v !== 'object';
}
function isObject(v) {
return typeof v === 'object' && v !== null && !Array.isArray(v);
}
function mergeObjects(explicit, template) {
var ret = {};
Object.keys(template).forEach(function (k) {
var v1 = template[k],
v2 = explicit[k];
if (Array.isArray(v1)) {
ret[k] = Array.isArray(v2) && v2.length > 0 ? v2 : v1;
} else if (isObject(v1)) {
v2 = isObject(v2) ? v2 : {};
ret[k] = mergeObjects(v2, v1);
} else {
ret[k] = isScalar(v2) ? v2 : v1;
}
});
return ret;
}
function mergeDefaults(explicit, implicit) {
return mergeObjects(explicit || {}, implicit);
}
function addMethods() {
var args = Array.prototype.slice.call(arguments),
cons = args.shift();
args.forEach(function (arg) {
var method = arg,
property = dasherize(arg);
cons.prototype[method] = function () {
return this.config[property];
};
});
}
function InstrumentOptions(config) {
this.config = config;
}
addMethods(InstrumentOptions,
'defaultExcludes', 'completeCopy',
'embedSource', 'variable', 'compact', 'preserveComments',
'saveBaseline', 'baselineFile',
'preloadSources');
InstrumentOptions.prototype.root = function () { return path.resolve(this.config.root); };
InstrumentOptions.prototype.excludes = function (excludeTests) {
var defs;
if (this.defaultExcludes()) {
defs = [ '**/node_modules/**' ];
if (excludeTests) {
defs = defs.concat(['**/test/**', '**/tests/**']);
}
return defs.concat(this.config.excludes);
}
return this.config.excludes;
};
function ReportingOptions(config) {
this.config = config;
}
addMethods(ReportingOptions, 'print', 'reports', 'dir');
function isInvalidMark(v, key) {
var prefix = 'Watermark for [' + key + '] :';
if (v.length !== 2) {
return prefix + 'must be an array of length 2';
}
v[0] = Number(v[0]);
v[1] = Number(v[1]);
if (isNaN(v[0]) || isNaN(v[1])) {
return prefix + 'must have valid numbers';
}
if (v[0] < 0 || v[1] < 0) {
return prefix + 'must be positive numbers';
}
if (v[1] > 100) {
return prefix + 'cannot exceed 100';
}
if (v[1] <= v[0]) {
return prefix + 'low must be less than high';
}
return null;
}
ReportingOptions.prototype.watermarks = function () {
var v = this.config.watermarks,
defs = defaults.watermarks(),
ret = {};
Object.keys(defs).forEach(function (k) {
var mark = v[k], //it will already be a non-zero length array because of the way the merge works
message = isInvalidMark(mark, k);
if (message) {
console.error(message);
ret[k] = defs[k];
} else {
ret[k] = mark;
}
});
return ret;
};
function HookOptions(config) {
this.config = config;
}
addMethods(HookOptions, 'hookRunInContext', 'postRequireHook', 'handleSigint');
function Configuration(obj, overrides) {
var config = mergeDefaults(obj, defaultConfig());
if (isObject(overrides)) {
config = mergeDefaults(overrides, config);
}
if (config.verbose) {
console.error('Using configuration');
console.error('-------------------');
console.error(yaml.safeDump(config, { indent: 4, flowLevel: 3 }));
console.error('-------------------\n');
}
this.verbose = config.verbose;
this.instrumentation = new InstrumentOptions(config.instrumentation);
this.reporting = new ReportingOptions(config.reporting);
this.hooks = new HookOptions(config.hooks);
//this.thresholds = new ThresholdOptions(config.thresholds);
}
function loadFile(file, overrides) {
var defaultConfigFile = path.resolve('.istanbul.yml'),
configObject;
if (file) {
if (!fs.existsSync(file)) {
throw new Error('Invalid configuration file specified:' + file);
}
} else {
if (fs.existsSync(defaultConfigFile)) {
file = defaultConfigFile;
}
}
if (file) {
console.error('Loading config: ' + file);
configObject = file.match(YML_PATTERN) ?
yaml.safeLoad(fs.readFileSync(file, 'utf8'), { filename: file }) :
require(path.resolve(file));
}
return new Configuration(configObject, overrides);
}
function loadObject(obj, overrides) {
return new Configuration(obj, overrides);
}
module.exports = {
loadFile: loadFile,
loadObject: loadObject,
defaultConfig: defaultConfig
};