1 | 'use strict'
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2 |
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3 | const fs = require('graceful-fs')
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4 | const childProcess = require('child_process')
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5 |
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6 | function startsWith (str, search, pos) {
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7 | if (String.prototype.startsWith) {
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8 | return str.startsWith(search, pos)
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9 | }
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10 |
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11 | return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search
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12 | }
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13 |
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14 | function processExecSync (file, args, options) {
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15 | var child, error, timeout, tmpdir, command
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16 | command = makeCommand(file, args)
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17 |
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18 | |
19 |
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20 |
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21 |
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22 |
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23 | options = options || {}
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24 |
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25 | timeout = Date.now() + options.timeout
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26 |
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27 | var osTempBase = '/tmp'
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28 | var os = determineOS()
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29 | osTempBase = '/tmp'
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30 |
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31 | if (process.env.TMP) {
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32 | osTempBase = process.env.TMP
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33 | }
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34 |
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35 | if (osTempBase[osTempBase.length - 1] !== '/') {
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36 | osTempBase += '/'
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37 | }
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38 |
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39 | tmpdir = osTempBase + 'processExecSync.' + Date.now() + Math.random()
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40 | fs.mkdirSync(tmpdir)
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41 |
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42 |
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43 | if (os === 'linux') {
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44 | command = '(' + command + ' > ' + tmpdir + '/stdout 2> ' + tmpdir +
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45 | '/stderr); echo $? > ' + tmpdir + '/status'
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46 | } else {
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47 | command = '(' + command + ' > ' + tmpdir + '/stdout 2> ' + tmpdir +
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48 | '/stderr) | echo %errorlevel% > ' + tmpdir + '/status | exit'
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49 | }
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50 |
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51 |
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52 | child = childProcess.exec(command, options)
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53 |
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54 | var maxTry = 100000
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55 | var tryCount = 0
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56 | while (tryCount < maxTry) {
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57 | try {
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58 | var x = fs.readFileSync(tmpdir + '/status')
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59 | if (x.toString() === '0') {
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60 | break
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61 | }
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62 | } catch (ignore) {}
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63 | tryCount++
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64 | if (Date.now() > timeout) {
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65 | error = child
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66 | break
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67 | }
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68 | }
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69 |
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70 | ['stdout', 'stderr', 'status'].forEach(function (file) {
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71 | child[file] = fs.readFileSync(tmpdir + '/' + file, options.encoding)
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72 | setTimeout(unlinkFile, 500, tmpdir + '/' + file)
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73 | })
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74 |
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75 | child.status = Number(child.status)
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76 | if (child.status !== 0) {
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77 | error = child
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78 | }
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79 |
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80 | try {
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81 | fs.rmdirSync(tmpdir)
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82 | } catch (ignore) {}
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83 | if (error) {
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84 | throw error
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85 | }
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86 | return child.stdout
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87 | }
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88 |
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89 | function makeCommand (file, args) {
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90 | var command, quote
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91 | command = file
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92 | if (args.length > 0) {
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93 | for (var i in args) {
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94 | command = command + ' '
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95 | if (args[i][0] === '-') {
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96 | command = command + args[i]
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97 | } else {
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98 | if (!quote) {
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99 | command = command + '"'
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100 | quote = true
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101 | }
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102 | command = command + args[i]
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103 | if (quote) {
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104 | if (args.length === (parseInt(i) + 1)) {
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105 | command = command + '"'
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106 | }
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107 | }
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108 | }
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109 | }
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110 | }
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111 | return command
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112 | }
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113 |
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114 | function determineOS () {
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115 | var os = ''
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116 | var tmpVar = ''
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117 | if (process.env.OSTYPE) {
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118 | tmpVar = process.env.OSTYPE
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119 | } else if (process.env.OS) {
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120 | tmpVar = process.env.OS
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121 | } else {
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122 |
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123 | tmpVar = 'linux'
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124 | }
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125 |
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126 | if (startsWith(tmpVar, 'linux')) {
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127 | os = 'linux'
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128 | }
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129 | if (startsWith(tmpVar, 'win')) {
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130 | os = 'win'
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131 | }
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132 |
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133 | return os
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134 | }
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135 |
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136 | function unlinkFile (file) {
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137 | fs.unlinkSync(file)
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138 | }
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139 |
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140 | module.exports = processExecSync
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