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11 | module.exports = cmdShim
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12 | cmdShim.ifExists = cmdShimIfExists
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13 |
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14 | var fs = require("graceful-fs")
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15 |
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16 | var mkdir = require("mkdirp")
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17 | , path = require("path")
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18 | , toBatchSyntax = require("./lib/to-batch-syntax")
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19 | , shebangExpr = /^#\!\s*(?:\/usr\/bin\/env)?\s*([^ \t]+=[^ \t]+\s+)*\s*([^ \t]+)(.*)$/
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20 |
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21 | function cmdShimIfExists (from, to, cb) {
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22 | fs.stat(from, function (er) {
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23 | if (er) return cb()
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24 | cmdShim(from, to, cb)
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25 | })
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26 | }
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27 |
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28 |
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29 |
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30 | function rm (path, cb) {
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31 | fs.unlink(path, function(er) {
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32 | cb()
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33 | })
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34 | }
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35 |
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36 | function cmdShim (from, to, cb) {
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37 | fs.stat(from, function (er, stat) {
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38 | if (er)
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39 | return cb(er)
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40 |
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41 | cmdShim_(from, to, cb)
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42 | })
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43 | }
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44 |
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45 | function cmdShim_ (from, to, cb) {
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46 | var then = times(3, next, cb)
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47 | rm(to, then)
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48 | rm(to + ".cmd", then)
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49 | rm(to + ".ps1", then)
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50 |
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51 | function next(er) {
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52 | writeShim(from, to, cb)
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53 | }
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54 | }
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55 |
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56 | function writeShim (from, to, cb) {
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57 |
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58 |
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59 |
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60 |
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61 | mkdir(path.dirname(to), function (er) {
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62 | if (er)
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63 | return cb(er)
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64 | fs.readFile(from, "utf8", function (er, data) {
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65 | if (er) return writeShim_(from, to, null, null, null, cb)
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66 | var firstLine = data.trim().split(/\r*\n/)[0]
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67 | , shebang = firstLine.match(shebangExpr)
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68 | if (!shebang) return writeShim_(from, to, null, null, null, cb)
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69 | var vars = shebang[1] || ""
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70 | , prog = shebang[2]
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71 | , args = shebang[3] || ""
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72 | return writeShim_(from, to, prog, args, vars, cb)
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73 | })
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74 | })
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75 | }
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76 |
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77 |
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78 | function writeShim_ (from, to, prog, args, variables, cb) {
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79 | var shTarget = path.relative(path.dirname(to), from)
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80 | , target = shTarget.split("/").join("\\")
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81 | , longProg
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82 | , shProg = prog && prog.split("\\").join("/")
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83 | , shLongProg
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84 | , pwshProg = shProg && "\"" + shProg + "$exe\""
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85 | , pwshLongProg
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86 | shTarget = shTarget.split("\\").join("/")
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87 | args = args || ""
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88 | variables = variables || ""
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89 | if (!prog) {
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90 | prog = "\"%dp0%\\" + target + "\""
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91 | shProg = "\"$basedir/" + shTarget + "\""
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92 | pwshProg = shProg
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93 | args = ""
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94 | target = ""
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95 | shTarget = ""
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96 | } else {
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97 | longProg = "\"%dp0%\\" + prog + ".exe\""
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98 | shLongProg = "\"$basedir/" + prog + "\""
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99 | pwshLongProg = "\"$basedir/" + prog + "$exe\""
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100 | target = "\"%dp0%\\" + target + "\""
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101 | shTarget = "\"$basedir/" + shTarget + "\""
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102 | }
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103 |
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104 |
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105 |
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106 |
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107 |
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108 |
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116 |
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117 |
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118 |
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119 |
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120 |
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121 |
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122 |
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123 | var head = '@ECHO off\r\n' +
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124 | 'SETLOCAL\r\n' +
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125 | 'CALL :find_dp0\r\n'
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126 | var foot = 'ENDLOCAL\r\n' +
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127 | 'EXIT /b %errorlevel%\r\n' +
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128 | ':find_dp0\r\n' +
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129 | 'SET dp0=%~dp0\r\n' +
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130 | 'EXIT /b\r\n'
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131 |
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132 | var cmd
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133 | if (longProg) {
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134 | shLongProg = shLongProg.trim();
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135 | args = args.trim();
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136 | var variableDeclarationsAsBatch = toBatchSyntax.convertToSetCommands(variables)
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137 | cmd = head
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138 | + variableDeclarationsAsBatch
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139 | + "\r\n"
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140 | + "IF EXIST " + longProg + " (\r\n"
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141 | + " SET \"_prog=" + longProg.replace(/(^")|("$)/g, '') + "\"\r\n"
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142 | + ") ELSE (\r\n"
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143 | + " SET \"_prog=" + prog.replace(/(^")|("$)/g, '') + "\"\r\n"
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144 | + " SET PATHEXT=%PATHEXT:;.JS;=;%\r\n"
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145 | + ")\r\n"
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146 | + "\r\n"
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147 | + "\"%_prog%\" " + args + " " + target + " %*\r\n"
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148 | + foot
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149 | } else {
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150 | cmd = head + prog + " " + args + " " + target + " %*\r\n" + foot
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151 | }
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152 |
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153 |
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154 |
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155 |
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156 |
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157 |
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158 |
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159 |
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160 |
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161 |
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162 |
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163 |
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164 |
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165 |
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166 |
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167 |
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168 |
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169 | var sh = "#!/bin/sh\n"
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170 |
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171 | sh = sh
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172 | + "basedir=$(dirname \"$(echo \"$0\" | sed -e 's,\\\\,/,g')\")\n"
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173 | + "\n"
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174 | + "case `uname` in\n"
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175 | + " *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w \"$basedir\"`;;\n"
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176 | + "esac\n"
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177 | + "\n"
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178 |
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179 | if (shLongProg) {
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180 | sh = sh
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181 | + "if [ -x "+shLongProg+" ]; then\n"
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182 | + " " + variables + shLongProg + " " + args + " " + shTarget + " \"$@\"\n"
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183 | + " ret=$?\n"
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184 | + "else \n"
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185 | + " " + variables + shProg + " " + args + " " + shTarget + " \"$@\"\n"
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186 | + " ret=$?\n"
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187 | + "fi\n"
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188 | + "exit $ret\n"
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189 | } else {
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190 | sh = sh
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191 | + shProg + " " + args + " " + shTarget + " \"$@\"\n"
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192 | + "exit $?\n"
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193 | }
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194 |
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195 |
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196 |
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197 |
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198 |
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199 |
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200 |
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201 |
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202 |
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203 |
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204 |
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205 |
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206 |
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207 |
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208 |
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209 |
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210 |
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211 |
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212 |
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213 | var pwsh = "#!/usr/bin/env pwsh\n"
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214 | + "$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent\n"
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215 | + "\n"
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216 | + "$exe=\"\"\n"
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217 | + "if ($PSVersionTable.PSVersion -lt \"6.0\" -or $IsWindows) {\n"
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218 | + " # Fix case when both the Windows and Linux builds of Node\n"
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219 | + " # are installed in the same directory\n"
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220 | + " $exe=\".exe\"\n"
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221 | + "}\n"
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222 | if (shLongProg) {
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223 | pwsh = pwsh
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224 | + "$ret=0\n"
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225 | + "if (Test-Path " + pwshLongProg + ") {\n"
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226 | + " & " + pwshLongProg + " " + args + " " + shTarget + " $args\n"
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227 | + " $ret=$LASTEXITCODE\n"
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228 | + "} else {\n"
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229 | + " & " + pwshProg + " " + args + " " + shTarget + " $args\n"
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230 | + " $ret=$LASTEXITCODE\n"
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231 | + "}\n"
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232 | + "exit $ret\n"
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233 | } else {
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234 | pwsh = pwsh
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235 | + "& " + pwshProg + " " + args + " " + shTarget + " $args\n"
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236 | + "exit $LASTEXITCODE\n"
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237 | }
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238 |
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239 | var then = times(3, next, cb)
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240 | fs.writeFile(to + ".ps1", pwsh, "utf8", then)
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241 | fs.writeFile(to + ".cmd", cmd, "utf8", then)
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242 | fs.writeFile(to, sh, "utf8", then)
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243 | function next () {
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244 | chmodShim(to, cb)
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245 | }
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246 | }
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247 |
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248 | function chmodShim (to, cb) {
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249 | var then = times(3, cb, cb)
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250 | fs.chmod(to, "0755", then)
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251 | fs.chmod(to + ".cmd", "0755", then)
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252 | fs.chmod(to + ".ps1", "0755", then)
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253 | }
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254 |
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255 | function times(n, ok, cb) {
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256 | var errState = null
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257 | return function(er) {
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258 | if (!errState) {
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259 | if (er)
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260 | cb(errState = er)
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261 | else if (--n === 0)
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262 | ok()
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263 | }
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264 | }
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265 | }
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