1  #!/usr/bin/env node
 2  var which = require("../")
 3  if (process.argv.length < 3)
 4    usage()
 5  
 6  function usage () {
 7    console.error('usage: which [-as] program ...')
 8    process.exit(1)
 9  }
10  
11  var all = false
12  var silent = false
13  var dashdash = false
14  var args = process.argv.slice(2).filter(function (arg) {
15    if (dashdash || !/^-/.test(arg))
16      return true
17  
18    if (arg === '--') {
19      dashdash = true
20      return false
21    }
22  
23    var flags = arg.substr(1).split('')
24    for (var f = 0; f < flags.length; f++) {
25      var flag = flags[f]
26      switch (flag) {
27        case 's':
28          silent = true
29          break
30        case 'a':
31          all = true
32          break
33        default:
34          console.error('which: illegal option -- ' + flag)
35          usage()
36      }
37    }
38    return false
39  })
40  
41  process.exit(args.reduce(function (pv, current) {
42    try {
43      var f = which.sync(current, { all: all })
44      if (all)
45        f = f.join('\n')
46      if (!silent)
47        console.log(f)
48      return pv;
49    } catch (e) {
50      return 1;
51    }
52  }, 0))