diff options
| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/resolve/lib/sync.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
switch to vuepress
Diffstat (limited to 'node_modules/resolve/lib/sync.js')
| -rw-r--r-- | node_modules/resolve/lib/sync.js | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/node_modules/resolve/lib/sync.js b/node_modules/resolve/lib/sync.js new file mode 100644 index 00000000..51e58f02 --- /dev/null +++ b/node_modules/resolve/lib/sync.js @@ -0,0 +1,132 @@ +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 defaultIsFile = function isFile(file) { + try { + var stat = fs.statSync(file); + } catch (e) { + if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false; + throw e; + } + return stat.isFile() || stat.isFIFO(); +}; + +module.exports = function (x, options) { + if (typeof x !== 'string') { + throw new TypeError('Path must be a string.'); + } + var opts = options || {}; + var isFile = opts.isFile || defaultIsFile; + var readFileSync = opts.readFileSync || fs.readFileSync; + + var extensions = opts.extensions || ['.js']; + var basedir = opts.basedir || path.dirname(caller()); + var parent = opts.filename || basedir; + + opts.paths = opts.paths || []; + + if (/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/.test(x)) { + var res = path.resolve(basedir, x); + if (x === '..' || x.slice(-1) === '/') res += '/'; + var m = loadAsFileSync(res) || loadAsDirectorySync(res); + if (m) return m; + } else { + var n = loadNodeModulesSync(x, basedir); + if (n) return n; + } + + if (core[x]) return x; + + var err = new Error("Cannot find module '" + x + "' from '" + parent + "'"); + err.code = 'MODULE_NOT_FOUND'; + throw err; + + function loadAsFileSync(x) { + var pkg = loadpkg(path.dirname(x)); + + if (pkg && pkg.dir && pkg.pkg && opts.pathFilter) { + var rfile = path.relative(pkg.dir, x); + var r = opts.pathFilter(pkg.pkg, x, rfile); + if (r) { + x = path.resolve(pkg.dir, r); // eslint-disable-line no-param-reassign + } + } + + if (isFile(x)) { + return x; + } + + for (var i = 0; i < extensions.length; i++) { + var file = x + extensions[i]; + if (isFile(file)) { + return file; + } + } + } + + function loadpkg(dir) { + if (dir === '' || dir === '/') return; + if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) { + return; + } + if (/[/\\]node_modules[/\\]*$/.test(dir)) return; + + var pkgfile = path.join(dir, 'package.json'); + + if (!isFile(pkgfile)) { + return loadpkg(path.dirname(dir)); + } + + var body = readFileSync(pkgfile); + + try { + var pkg = JSON.parse(body); + } catch (jsonErr) {} + + if (pkg && opts.packageFilter) { + pkg = opts.packageFilter(pkg, dir); + } + + return { pkg: pkg, dir: dir }; + } + + function loadAsDirectorySync(x) { + var pkgfile = path.join(x, '/package.json'); + if (isFile(pkgfile)) { + try { + var body = readFileSync(pkgfile, 'UTF8'); + var pkg = JSON.parse(body); + + if (opts.packageFilter) { + pkg = opts.packageFilter(pkg, x); + } + + if (pkg.main) { + if (pkg.main === '.' || pkg.main === './') { + pkg.main = 'index'; + } + var m = loadAsFileSync(path.resolve(x, pkg.main)); + if (m) return m; + var n = loadAsDirectorySync(path.resolve(x, pkg.main)); + if (n) return n; + } + } catch (e) {} + } + + return loadAsFileSync(path.join(x, '/index')); + } + + function loadNodeModulesSync(x, start) { + var dirs = nodeModulesPaths(start, opts); + for (var i = 0; i < dirs.length; i++) { + var dir = dirs[i]; + var m = loadAsFileSync(path.join(dir, '/', x)); + if (m) return m; + var n = loadAsDirectorySync(path.join(dir, '/', x)); + if (n) return n; + } + } +}; |
