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-rw-r--r--node_modules/which/which.js135
1 files changed, 135 insertions, 0 deletions
diff --git a/node_modules/which/which.js b/node_modules/which/which.js
new file mode 100644
index 0000000..4347f91
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+++ b/node_modules/which/which.js
@@ -0,0 +1,135 @@
+module.exports = which
+which.sync = whichSync
+
+var isWindows = process.platform === 'win32' ||
+ process.env.OSTYPE === 'cygwin' ||
+ process.env.OSTYPE === 'msys'
+
+var path = require('path')
+var COLON = isWindows ? ';' : ':'
+var isexe = require('isexe')
+
+function getNotFoundError (cmd) {
+ var er = new Error('not found: ' + cmd)
+ er.code = 'ENOENT'
+
+ return er
+}
+
+function getPathInfo (cmd, opt) {
+ var colon = opt.colon || COLON
+ var pathEnv = opt.path || process.env.PATH || ''
+ var pathExt = ['']
+
+ pathEnv = pathEnv.split(colon)
+
+ var pathExtExe = ''
+ if (isWindows) {
+ pathEnv.unshift(process.cwd())
+ pathExtExe = (opt.pathExt || process.env.PATHEXT || '.EXE;.CMD;.BAT;.COM')
+ pathExt = pathExtExe.split(colon)
+
+
+ // Always test the cmd itself first. isexe will check to make sure
+ // it's found in the pathExt set.
+ if (cmd.indexOf('.') !== -1 && pathExt[0] !== '')
+ pathExt.unshift('')
+ }
+
+ // If it has a slash, then we don't bother searching the pathenv.
+ // just check the file itself, and that's it.
+ if (cmd.match(/\//) || isWindows && cmd.match(/\\/))
+ pathEnv = ['']
+
+ return {
+ env: pathEnv,
+ ext: pathExt,
+ extExe: pathExtExe
+ }
+}
+
+function which (cmd, opt, cb) {
+ if (typeof opt === 'function') {
+ cb = opt
+ opt = {}
+ }
+
+ var info = getPathInfo(cmd, opt)
+ var pathEnv = info.env
+ var pathExt = info.ext
+ var pathExtExe = info.extExe
+ var found = []
+
+ ;(function F (i, l) {
+ if (i === l) {
+ if (opt.all && found.length)
+ return cb(null, found)
+ else
+ return cb(getNotFoundError(cmd))
+ }
+
+ var pathPart = pathEnv[i]
+ if (pathPart.charAt(0) === '"' && pathPart.slice(-1) === '"')
+ pathPart = pathPart.slice(1, -1)
+
+ var p = path.join(pathPart, cmd)
+ if (!pathPart && (/^\.[\\\/]/).test(cmd)) {
+ p = cmd.slice(0, 2) + p
+ }
+ ;(function E (ii, ll) {
+ if (ii === ll) return F(i + 1, l)
+ var ext = pathExt[ii]
+ isexe(p + ext, { pathExt: pathExtExe }, function (er, is) {
+ if (!er && is) {
+ if (opt.all)
+ found.push(p + ext)
+ else
+ return cb(null, p + ext)
+ }
+ return E(ii + 1, ll)
+ })
+ })(0, pathExt.length)
+ })(0, pathEnv.length)
+}
+
+function whichSync (cmd, opt) {
+ opt = opt || {}
+
+ var info = getPathInfo(cmd, opt)
+ var pathEnv = info.env
+ var pathExt = info.ext
+ var pathExtExe = info.extExe
+ var found = []
+
+ for (var i = 0, l = pathEnv.length; i < l; i ++) {
+ var pathPart = pathEnv[i]
+ if (pathPart.charAt(0) === '"' && pathPart.slice(-1) === '"')
+ pathPart = pathPart.slice(1, -1)
+
+ var p = path.join(pathPart, cmd)
+ if (!pathPart && /^\.[\\\/]/.test(cmd)) {
+ p = cmd.slice(0, 2) + p
+ }
+ for (var j = 0, ll = pathExt.length; j < ll; j ++) {
+ var cur = p + pathExt[j]
+ var is
+ try {
+ is = isexe.sync(cur, { pathExt: pathExtExe })
+ if (is) {
+ if (opt.all)
+ found.push(cur)
+ else
+ return cur
+ }
+ } catch (ex) {}
+ }
+ }
+
+ if (opt.all && found.length)
+ return found
+
+ if (opt.nothrow)
+ return null
+
+ throw getNotFoundError(cmd)
+}