diff options
Diffstat (limited to 'vnfmarket/src/main/webapp/vnfmarket/node_modules/resolve/lib/async.js')
| -rw-r--r-- | vnfmarket/src/main/webapp/vnfmarket/node_modules/resolve/lib/async.js | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/vnfmarket/src/main/webapp/vnfmarket/node_modules/resolve/lib/async.js b/vnfmarket/src/main/webapp/vnfmarket/node_modules/resolve/lib/async.js new file mode 100644 index 00000000..0f0eeca5 --- /dev/null +++ b/vnfmarket/src/main/webapp/vnfmarket/node_modules/resolve/lib/async.js @@ -0,0 +1,192 @@ +var core = require('./core'); +var fs = require('fs'); +var path = require('path'); +var caller = require('./caller.js'); +var nodeModulesPaths = require('./node-modules-paths.js'); +var splitRe = process.platform === 'win32' ? /[\/\\]/ : /\//; + +module.exports = function resolve (x, opts, cb) { + if (typeof opts === 'function') { + cb = opts; + opts = {}; + } + if (!opts) opts = {}; + if (typeof x !== 'string') { + return process.nextTick(function () { + cb(new Error('path must be a string')); + }); + } + + var isFile = opts.isFile || function (file, cb) { + fs.stat(file, function (err, stat) { + if (err && err.code === 'ENOENT') cb(null, false) + else if (err) cb(err) + else cb(null, stat.isFile() || stat.isFIFO()) + }); + }; + var readFile = opts.readFile || fs.readFile; + + var extensions = opts.extensions || [ '.js' ]; + var y = opts.basedir || path.dirname(caller()); + + opts.paths = opts.paths || []; + + if (/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[\\\/])/.test(x)) { + var res = path.resolve(y, x); + if (x === '..') res += '/'; + if (/\/$/.test(x) && res === y) { + loadAsDirectory(res, opts.package, onfile); + } + else loadAsFile(res, opts.package, onfile); + } + else loadNodeModules(x, y, function (err, n, pkg) { + if (err) cb(err) + else if (n) cb(null, n, pkg) + else if (core[x]) return cb(null, x); + else cb(new Error("Cannot find module '" + x + "' from '" + y + "'")) + }); + + function onfile (err, m, pkg) { + if (err) cb(err) + else if (m) cb(null, m, pkg) + else loadAsDirectory(res, function (err, d, pkg) { + if (err) cb(err) + else if (d) cb(null, d, pkg) + else cb(new Error("Cannot find module '" + x + "' from '" + y + "'")) + }) + } + + function loadAsFile (x, pkg, cb) { + if (typeof pkg === 'function') { + cb = pkg; + pkg = undefined; + } + + var exts = [''].concat(extensions); + load(exts, x, pkg) + + function load (exts, x, pkg) { + if (exts.length === 0) return cb(null, undefined, pkg); + var file = x + exts[0]; + + if (pkg) onpkg(null, pkg) + else loadpkg(path.dirname(file), onpkg); + + function onpkg (err, pkg_, dir) { + pkg = pkg_; + if (err) return cb(err) + if (dir && pkg && opts.pathFilter) { + var rfile = path.relative(dir, file); + var rel = rfile.slice(0, rfile.length - exts[0].length); + var r = opts.pathFilter(pkg, x, rel); + if (r) return load( + [''].concat(extensions.slice()), + path.resolve(dir, r), + pkg + ); + } + isFile(file, onex); + } + function onex (err, ex) { + if (err) cb(err) + else if (!ex) load(exts.slice(1), x, pkg) + else cb(null, file, pkg) + } + } + } + + function loadpkg (dir, cb) { + if (dir === '' || dir === '/') return cb(null); + if (process.platform === 'win32' && /^\w:[\\\/]*$/.test(dir)) { + return cb(null); + } + if (/[\\\/]node_modules[\\\/]*$/.test(dir)) return cb(null); + + var pkgfile = path.join(dir, 'package.json'); + isFile(pkgfile, function (err, ex) { + // on err, ex is false + if (!ex) return loadpkg( + path.dirname(dir), cb + ); + + readFile(pkgfile, function (err, body) { + if (err) cb(err); + try { var pkg = JSON.parse(body) } + catch (err) {} + + if (pkg && opts.packageFilter) { + pkg = opts.packageFilter(pkg, pkgfile); + } + cb(null, pkg, dir); + }); + }); + } + + function loadAsDirectory (x, fpkg, cb) { + if (typeof fpkg === 'function') { + cb = fpkg; + fpkg = opts.package; + } + + var pkgfile = path.join(x, '/package.json'); + isFile(pkgfile, function (err, ex) { + if (err) return cb(err); + if (!ex) return loadAsFile(path.join(x, '/index'), fpkg, cb); + + readFile(pkgfile, function (err, body) { + if (err) return cb(err); + try { + var pkg = JSON.parse(body); + } + catch (err) {} + + if (opts.packageFilter) { + pkg = opts.packageFilter(pkg, pkgfile); + } + + if (pkg.main) { + if (pkg.main === '.' || pkg.main === './'){ + pkg.main = 'index' + } + loadAsFile(path.resolve(x, pkg.main), pkg, function (err, m, pkg) { + if (err) return cb(err); + if (m) return cb(null, m, pkg); + if (!pkg) return loadAsFile(path.join(x, '/index'), pkg, cb); + + var dir = path.resolve(x, pkg.main); + loadAsDirectory(dir, pkg, function (err, n, pkg) { + if (err) return cb(err); + if (n) return cb(null, n, pkg); + loadAsFile(path.join(x, '/index'), pkg, cb); + }); + }); + return; + } + + loadAsFile(path.join(x, '/index'), pkg, cb); + }); + }); + } + + function loadNodeModules (x, start, cb) { + (function process (dirs) { + if (dirs.length === 0) return cb(null, undefined); + var dir = dirs[0]; + + var file = path.join(dir, '/', x); + loadAsFile(file, undefined, onfile); + + function onfile (err, m, pkg) { + if (err) return cb(err); + if (m) return cb(null, m, pkg); + loadAsDirectory(path.join(dir, '/', x), undefined, ondir); + } + + function ondir (err, n, pkg) { + if (err) return cb(err); + if (n) return cb(null, n, pkg); + process(dirs.slice(1)); + } + })(nodeModulesPaths(start, opts)); + } +}; |