d2-ui
Version:
237 lines (204 loc) • 6.25 kB
JavaScript
/*!
* node-sass: lib/extensions.js
*/
var eol = require('os').EOL,
fs = require('fs'),
pkg = require('../package.json'),
path = require('path'),
defaultBinaryPath = path.join(__dirname, '..', 'vendor');
function getHumanPlatform(arg) {
switch (arg || process.platform) {
case 'darwin': return 'OS X';
case 'freebsd': return 'FreeBSD';
case 'linux': return 'Linux';
case 'win32': return 'Windows';
default: return false;
}
}
function getHumanArchitecture(arg) {
switch (arg || process.arch) {
case 'ia32': return '32-bit';
case 'x86': return '32-bit';
case 'x64': return '64-bit';
default: return false;
}
}
function getHumanNodeVersion(arg) {
switch (parseInt(arg || process.versions.modules, 10)) {
case 11: return 'Node 0.10.x';
case 14: return 'Node 0.12.x';
case 42: return 'io.js 1.x';
case 43: return 'io.js 1.1.x';
case 44: return 'io.js 2.x';
case 45: return 'io.js 3.x';
case 46: return 'Node.js 4.x';
case 47: return 'Node.js 5.x';
case 48: return 'Node.js 6.x';
default: return false;
}
}
function getHumanEnvironment(env) {
var binding = env.replace(/_binding\.node$/, ''),
parts = binding.split('-'),
platform = getHumanPlatform(parts[0]),
arch = getHumanArchitecture(parts[1]),
runtime = getHumanNodeVersion(parts[2]);
if (parts.length !== 3) {
return 'Unknown environment (' + binding + ')';
}
if (!platform) {
platform = 'Unsupported platform (' + parts[0] + ')';
}
if (!arch) {
arch = 'Unsupported architecture (' + parts[1] + ')';
}
if (!runtime) {
runtime = 'Unsupported runtime (' + parts[2] + ')';
}
return [
platform, arch, 'with', runtime,
].join(' ');
}
function getInstalledBinaries() {
return fs.readdirSync(defaultBinaryPath);
}
function isSupportedEnvironment(platform, arch, runtime) {
return (
false !== getHumanPlatform(platform) &&
false !== getHumanArchitecture(arch) &&
false !== getHumanNodeVersion(runtime)
);
}
/**
* Get the value of a CLI argument
*
* @param {String} name
* @param {Array} args
* @api private
*/
function getArgument(name, args) {
var flags = args || process.argv.slice(2),
index = flags.lastIndexOf(name);
if (index === -1 || index + 1 >= flags.length) {
return null;
}
return flags[index + 1];
}
/**
* Get binary name.
* If environment variable SASS_BINARY_NAME,
* .npmrc variable sass_binary_name or
* process argument --binary-name is provided,
* return it as is, otherwise make default binary
* name: {platform}-{arch}-{v8 version}.node
*
* @api public
*/
function getBinaryName() {
var binaryName;
if (getArgument('--sass-binary-name')) {
binaryName = getArgument('--sass-binary-name');
} else if (process.env.SASS_BINARY_NAME) {
binaryName = process.env.SASS_BINARY_NAME;
} else if (process.env.npm_config_sass_binary_name) {
binaryName = process.env.npm_config_sass_binary_name;
} else if (pkg.nodeSassConfig && pkg.nodeSassConfig.binaryName) {
binaryName = pkg.nodeSassConfig.binaryName;
} else {
binaryName = [process.platform, '-',
process.arch, '-',
process.versions.modules].join('');
}
return [binaryName, 'binding.node'].join('_');
}
/**
* Determine the URL to fetch binary file from.
* By default fetch from the node-sass distribution
* site on GitHub.
*
* The default URL can be overriden using
* the environment variable SASS_BINARY_SITE,
* .npmrc variable sass_binary_site or
* or a command line option --sass-binary-site:
*
* node scripts/install.js --sass-binary-site http://example.com/
*
* The URL should to the mirror of the repository
* laid out as follows:
*
* SASS_BINARY_SITE/
*
* v3.0.0
* v3.0.0/freebsd-x64-14_binding.node
* ....
* v3.0.0
* v3.0.0/freebsd-ia32-11_binding.node
* v3.0.0/freebsd-x64-42_binding.node
* ... etc. for all supported versions and platforms
*
* @api public
*/
function getBinaryUrl() {
var site = getArgument('--sass-binary-site') ||
process.env.SASS_BINARY_SITE ||
process.env.npm_config_sass_binary_site ||
(pkg.nodeSassConfig && pkg.nodeSassConfig.binarySite) ||
'https://github.com/sass/node-sass/releases/download';
return [site, 'v' + pkg.version, getBinaryName()].join('/');
}
/**
* Get binary path.
* If environment variable SASS_BINARY_PATH,
* .npmrc variable sass_binary_path or
* process argument --sass-binary-path is provided,
* select it by appending binary name, otherwise
* make default binary path using binary name.
* Once the primary selection is made, check if
* callers wants to throw if file not exists before
* returning.
*
* @api public
*/
function getBinaryPath() {
var binaryPath;
if (getArgument('--sass-binary-path')) {
binaryPath = getArgument('--sass-binary-path');
} else if (process.env.SASS_BINARY_PATH) {
binaryPath = process.env.SASS_BINARY_PATH;
} else if (process.env.npm_config_sass_binary_path) {
binaryPath = process.env.npm_config_sass_binary_path;
} else if (pkg.nodeSassConfig && pkg.nodeSassConfig.binaryPath) {
binaryPath = pkg.nodeSassConfig.binaryPath;
} else {
binaryPath = path.join(defaultBinaryPath, getBinaryName().replace(/_/, '/'));
}
return binaryPath;
}
/**
* Does the supplied binary path exist
*
* @param {String} binaryPath
* @api public
*/
function hasBinary(binaryPath) {
return fs.existsSync(binaryPath);
}
/**
* Get Sass version information
*
* @api public
*/
function getVersionInfo(binding) {
return [
['node-sass', pkg.version, '(Wrapper)', '[JavaScript]'].join('\t'),
['libsass ', binding.libsassVersion(), '(Sass Compiler)', '[C/C++]'].join('\t'),
].join(eol);
}
module.exports.hasBinary = hasBinary;
module.exports.getBinaryUrl = getBinaryUrl;
module.exports.getBinaryName = getBinaryName;
module.exports.getBinaryPath = getBinaryPath;
module.exports.getVersionInfo = getVersionInfo;
module.exports.getHumanEnvironment = getHumanEnvironment;
module.exports.getInstalledBinaries = getInstalledBinaries;
module.exports.isSupportedEnvironment = isSupportedEnvironment;