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// On windows, create a .cmd file.
// Read the #! in the file to see what it uses. The vast majority
// of the time, this will be either:
// "#!/usr/bin/env <prog> <args...>"
// or:
// "#!<prog> <args...>"
//
// Write a binroot/pkg.bin + ".cmd" file that has this line in it:
// @<prog> <args...> %dp0%<target> %*
module.exports = cmdShim
cmdShim.ifExists = cmdShimIfExists
var fs = require("graceful-fs")
var mkdir = require("mkdirp")
, path = require("path")
, toBatchSyntax = require("./lib/to-batch-syntax")
, shebangExpr = /^#\!\s*(?:\/usr\/bin\/env)?\s*([^ \t]+=[^ \t]+\s+)*\s*([^ \t]+)(.*)$/
function cmdShimIfExists (from, to, cb) {
fs.stat(from, function (er) {
if (er) return cb()
cmdShim(from, to, cb)
})
}
// Try to unlink, but ignore errors.
// Any problems will surface later.
function rm (path, cb) {
fs.unlink(path, function(er) {
cb()
})
}
function cmdShim (from, to, cb) {
fs.stat(from, function (er, stat) {
if (er)
return cb(er)
cmdShim_(from, to, cb)
})
}
function cmdShim_ (from, to, cb) {
var then = times(3, next, cb)
rm(to, then)
rm(to + ".cmd", then)
rm(to + ".ps1", then)
function next(er) {
writeShim(from, to, cb)
}
}
function writeShim (from, to, cb) {
// make a cmd file and a sh script
// First, check if the bin is a #! of some sort.
// If not, then assume it's something that'll be compiled, or some other
// sort of script, and just call it directly.
mkdir(path.dirname(to), function (er) {
if (er)
return cb(er)
fs.readFile(from, "utf8", function (er, data) {
if (er) return writeShim_(from, to, null, null, null, cb)
var firstLine = data.trim().split(/\r*\n/)[0]
, shebang = firstLine.match(shebangExpr)
if (!shebang) return writeShim_(from, to, null, null, null, cb)
var vars = shebang[1] || ""
, prog = shebang[2]
, args = shebang[3] || ""
return writeShim_(from, to, prog, args, vars, cb)
})
})
}
function writeShim_ (from, to, prog, args, variables, cb) {
var shTarget = path.relative(path.dirname(to), from)
, target = shTarget.split("/").join("\\")
, longProg
, shProg = prog && prog.split("\\").join("/")
, shLongProg
, pwshProg = shProg && "\"" + shProg + "$exe\""
, pwshLongProg
shTarget = shTarget.split("\\").join("/")
args = args || ""
variables = variables || ""
if (!prog) {
prog = "\"%dp0%\\" + target + "\""
shProg = "\"$basedir/" + shTarget + "\""
pwshProg = shProg
args = ""
target = ""
shTarget = ""
} else {
longProg = "\"%dp0%\\" + prog + ".exe\""
shLongProg = "\"$basedir/" + prog + "\""
pwshLongProg = "\"$basedir/" + prog + "$exe\""
target = "\"%dp0%\\" + target + "\""
shTarget = "\"$basedir/" + shTarget + "\""
}
// @SETLOCAL
// @CALL :find_dp0
//
// @IF EXIST "%dp0%\node.exe" (
// @SET "_prog=%dp0%\node.exe"
// ) ELSE (
// @SET "_prog=node"
// @SET PATHEXT=%PATHEXT:;.JS;=;%
// )
//
// "%_prog%" "%dp0%\.\node_modules\npm\bin\npm-cli.js" %*
// @ENDLOCAL
// @EXIT /b %errorlevel%
//
// :find_dp0
// SET dp0=%~dp0
// EXIT /b
//
// Subroutine trick to fix https://github.com/npm/cmd-shim/issues/10
var head = '@ECHO off\r\n' +
'SETLOCAL\r\n' +
'CALL :find_dp0\r\n'
var foot = 'ENDLOCAL\r\n' +
'EXIT /b %errorlevel%\r\n' +
':find_dp0\r\n' +
'SET dp0=%~dp0\r\n' +
'EXIT /b\r\n'
var cmd
if (longProg) {
shLongProg = shLongProg.trim();
args = args.trim();
var variableDeclarationsAsBatch = toBatchSyntax.convertToSetCommands(variables)
cmd = head
+ variableDeclarationsAsBatch
+ "\r\n"
+ "IF EXIST " + longProg + " (\r\n"
+ " SET \"_prog=" + longProg.replace(/(^")|("$)/g, '') + "\"\r\n"
+ ") ELSE (\r\n"
+ " SET \"_prog=" + prog.replace(/(^")|("$)/g, '') + "\"\r\n"
+ " SET PATHEXT=%PATHEXT:;.JS;=;%\r\n"
+ ")\r\n"
+ "\r\n"
+ "\"%_prog%\" " + args + " " + target + " %*\r\n"
+ foot
} else {
cmd = head + prog + " " + args + " " + target + " %*\r\n" + foot
}
// #!/bin/sh
// basedir=`dirname "$0"`
//
// case `uname` in
// *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
// esac
//
// if [ -x "$basedir/node.exe" ]; then
// "$basedir/node.exe" "$basedir/node_modules/npm/bin/npm-cli.js" "$@"
// ret=$?
// else
// node "$basedir/node_modules/npm/bin/npm-cli.js" "$@"
// ret=$?
// fi
// exit $ret
var sh = "#!/bin/sh\n"
sh = sh
+ "basedir=$(dirname \"$(echo \"$0\" | sed -e 's,\\\\,/,g')\")\n"
+ "\n"
+ "case `uname` in\n"
+ " *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w \"$basedir\"`;;\n"
+ "esac\n"
+ "\n"
if (shLongProg) {
sh = sh
+ "if [ -x "+shLongProg+" ]; then\n"
+ " " + variables + shLongProg + " " + args + " " + shTarget + " \"$@\"\n"
+ " ret=$?\n"
+ "else \n"
+ " " + variables + shProg + " " + args + " " + shTarget + " \"$@\"\n"
+ " ret=$?\n"
+ "fi\n"
+ "exit $ret\n"
} else {
sh = sh
+ shProg + " " + args + " " + shTarget + " \"$@\"\n"
+ "exit $?\n"
}
// #!/usr/bin/env pwsh
// $basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
//
// $ret=0
// $exe = ""
// if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
// # Fix case when both the Windows and Linux builds of Node
// # are installed in the same directory
// $exe = ".exe"
// }
// if (Test-Path "$basedir/node") {
// & "$basedir/node$exe" "$basedir/node_modules/npm/bin/npm-cli.js" $args
// $ret=$LASTEXITCODE
// } else {
// & "node$exe" "$basedir/node_modules/npm/bin/npm-cli.js" $args
// $ret=$LASTEXITCODE
// }
// exit $ret
var pwsh = "#!/usr/bin/env pwsh\n"
+ "$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent\n"
+ "\n"
+ "$exe=\"\"\n"
+ "if ($PSVersionTable.PSVersion -lt \"6.0\" -or $IsWindows) {\n"
+ " # Fix case when both the Windows and Linux builds of Node\n"
+ " # are installed in the same directory\n"
+ " $exe=\".exe\"\n"
+ "}\n"
if (shLongProg) {
pwsh = pwsh
+ "$ret=0\n"
+ "if (Test-Path " + pwshLongProg + ") {\n"
+ " & " + pwshLongProg + " " + args + " " + shTarget + " $args\n"
+ " $ret=$LASTEXITCODE\n"
+ "} else {\n"
+ " & " + pwshProg + " " + args + " " + shTarget + " $args\n"
+ " $ret=$LASTEXITCODE\n"
+ "}\n"
+ "exit $ret\n"
} else {
pwsh = pwsh
+ "& " + pwshProg + " " + args + " " + shTarget + " $args\n"
+ "exit $LASTEXITCODE\n"
}
var then = times(3, next, cb)
fs.writeFile(to + ".ps1", pwsh, "utf8", then)
fs.writeFile(to + ".cmd", cmd, "utf8", then)
fs.writeFile(to, sh, "utf8", then)
function next () {
chmodShim(to, cb)
}
}
function chmodShim (to, cb) {
var then = times(3, cb, cb)
fs.chmod(to, "0755", then)
fs.chmod(to + ".cmd", "0755", then)
fs.chmod(to + ".ps1", "0755", then)
}
function times(n, ok, cb) {
var errState = null
return function(er) {
if (!errState) {
if (er)
cb(errState = er)
else if (--n === 0)
ok()
}
}
}