Opal-Estate-Pro/node_modules/node-sass/lib/extensions.js

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2019-09-13 06:27:52 +02:00
/*!
* node-sass: lib/extensions.js
*/
var eol = require('os').EOL,
fs = require('fs'),
pkg = require('../package.json'),
mkdir = require('mkdirp'),
path = require('path'),
defaultBinaryDir = path.join(__dirname, '..', 'vendor'),
trueCasePathSync = require('true-case-path');
/**
* Get the human readable name of the Platform that is running
*
* @param {string} platform - An OS platform to match, or null to fallback to
* the current process platform
* @return {Object} The name of the platform if matched, false otherwise
*
* @api public
*/
function getHumanPlatform(platform) {
switch (platform || process.platform) {
case 'darwin': return 'OS X';
case 'freebsd': return 'FreeBSD';
case 'linux': return 'Linux';
case 'linux_musl': return 'Linux/musl';
case 'win32': return 'Windows';
default: return false;
}
}
/**
* Provides a more readable version of the architecture
*
* @param {string} arch - An instruction architecture name to match, or null to
* lookup the current process architecture
* @return {Object} The value of the process architecture, or false if unknown
*
* @api public
*/
function getHumanArchitecture(arch) {
switch (arch || process.arch) {
case 'ia32': return '32-bit';
case 'x86': return '32-bit';
case 'x64': return '64-bit';
default: return false;
}
}
/**
* Get the friendly name of the Node environment being run
*
* @param {Object} abi - A Node Application Binary Interface value, or null to
* fallback to the current Node ABI
* @return {Object} Returns a string name of the Node environment or false if
* unmatched
*
* @api public
*/
function getHumanNodeVersion(abi) {
switch (parseInt(abi || 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';
case 49: return 'Electron 1.3.x';
case 50: return 'Electron 1.4.x';
case 51: return 'Node.js 7.x';
case 53: return 'Electron 1.6.x';
case 57: return 'Node.js 8.x';
case 59: return 'Node.js 9.x';
case 64: return 'Node.js 10.x';
case 67: return 'Node.js 11.x';
case 72: return 'Node.js 12.x';
default: return false;
}
}
/**
* Get a human readable description of where node-sass is running to support
* user error reporting when something goes wrong
*
* @param {string} env - The name of the native bindings that is to be parsed
* @return {string} A description of what os, architecture, and Node version
* that is being run
*
* @api public
*/
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(' ');
}
/**
* Get the value of the binaries under the default path
*
* @return {Array} The currently installed node-sass bindings
*
* @api public
*/
function getInstalledBinaries() {
return fs.readdirSync(getBinaryDir());
}
/**
* Check that an environment matches the whitelisted values or the current
* environment if no parameters are passed
*
* @param {string} platform - The name of the OS platform(darwin, win32, etc...)
* @param {string} arch - The instruction set architecture of the Node environment
* @param {string} abi - The Node Application Binary Interface
* @return {Boolean} True, if node-sass supports the current platform, false otherwise
*
* @api public
*/
function isSupportedEnvironment(platform, arch, abi) {
return (
false !== getHumanPlatform(platform) &&
false !== getHumanArchitecture(arch) &&
false !== getHumanNodeVersion(abi)
);
}
/**
* 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,
variant,
platform = process.platform;
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 {
variant = getPlatformVariant();
if (variant) {
platform += '_' + variant;
}
binaryName = [
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 dir.
* If environment variable SASS_BINARY_DIR,
* .npmrc variable sass_binary_dir or
* process argument --sass-binary-dir is provided,
* select it by appending binary name, otherwise
* use default binary dir.
* Once the primary selection is made, check if
* callers wants to throw if file not exists before
* returning.
*
* @api public
*/
function getBinaryDir() {
var binaryDir;
if (getArgument('--sass-binary-dir')) {
binaryDir = getArgument('--sass-binary-dir');
} else if (process.env.SASS_BINARY_DIR) {
binaryDir = process.env.SASS_BINARY_DIR;
} else if (process.env.npm_config_sass_binary_dir) {
binaryDir = process.env.npm_config_sass_binary_dir;
} else if (pkg.nodeSassConfig && pkg.nodeSassConfig.binaryDir) {
binaryDir = pkg.nodeSassConfig.binaryDir;
} else {
binaryDir = defaultBinaryDir;
}
return binaryDir;
}
/**
* 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(getBinaryDir(), getBinaryName().replace(/_(?=binding\.node)/, '/'));
}
if (process.versions.modules < 46) {
return binaryPath;
}
try {
return trueCasePathSync(binaryPath) || binaryPath;
} catch (e) {
return binaryPath;
}
}
/**
* An array of paths suitable for use as a local disk cache of the binding.
*
* @return {[]String} an array of paths
* @api public
*/
function getCachePathCandidates() {
return [
process.env.npm_config_sass_binary_cache,
process.env.npm_config_cache,
].filter(function(_) { return _; });
}
/**
* The most suitable location for caching the binding on disk.
*
* Given the candidates directories provided by `getCachePathCandidates()` this
* returns the first writable directory. By treating the candidate directories
* as a prioritised list this method is deterministic, assuming no change to the
* local environment.
*
* @return {String} directory to cache binding
* @api public
*/
function getBinaryCachePath() {
var i,
cachePath,
cachePathCandidates = getCachePathCandidates();
for (i = 0; i < cachePathCandidates.length; i++) {
cachePath = path.join(cachePathCandidates[i], pkg.name, pkg.version);
try {
mkdir.sync(cachePath);
return cachePath;
} catch (e) {
// Directory is not writable, try another
}
}
return '';
}
/**
* The cached binding
*
* Check the candidates directories provided by `getCachePathCandidates()` for
* the binding file, if it exists. By treating the candidate directories
* as a prioritised list this method is deterministic, assuming no change to the
* local environment.
*
* @return {String} path to cached binary
* @api public
*/
function getCachedBinary() {
var i,
cachePath,
cacheBinary,
cachePathCandidates = getCachePathCandidates(),
binaryName = getBinaryName();
for (i = 0; i < cachePathCandidates.length; i++) {
cachePath = path.join(cachePathCandidates[i], pkg.name, pkg.version);
cacheBinary = path.join(cachePath, binaryName);
if (fs.existsSync(cacheBinary)) {
return cacheBinary;
}
}
return '';
}
/**
* 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);
}
/**
* Gets the platform variant, currently either an empty string or 'musl' for Linux/musl platforms.
*
* @api public
*/
function getPlatformVariant() {
var contents = '';
if (process.platform !== 'linux') {
return '';
}
try {
contents = fs.readFileSync(process.execPath);
// Buffer.indexOf was added in v1.5.0 so cast to string for old node
// Delay contents.toStrings because it's expensive
if (!contents.indexOf) {
contents = contents.toString();
}
if (contents.indexOf('libc.musl-x86_64.so.1') !== -1) {
return 'musl';
}
} catch (err) { } // eslint-disable-line no-empty
return '';
}
module.exports.hasBinary = hasBinary;
module.exports.getBinaryUrl = getBinaryUrl;
module.exports.getBinaryName = getBinaryName;
module.exports.getBinaryDir = getBinaryDir;
module.exports.getBinaryPath = getBinaryPath;
module.exports.getBinaryCachePath = getBinaryCachePath;
module.exports.getCachedBinary = getCachedBinary;
module.exports.getCachePathCandidates = getCachePathCandidates;
module.exports.getVersionInfo = getVersionInfo;
module.exports.getHumanEnvironment = getHumanEnvironment;
module.exports.getInstalledBinaries = getInstalledBinaries;
module.exports.isSupportedEnvironment = isSupportedEnvironment;