--- /dev/null
+// 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")
+ , shebangExpr = /^#\!\s*(?:\/usr\/bin\/env)?\s*([^ \t]+)(.*)$/
+
+function cmdShimIfExists (from, to, cb) {
+ fs.stat(from, function (er) {
+ if (er) return cb()
+ cmdShim(from, to, cb)
+ })
+}
+
+// Try to unlink, but ignore errors.
+// Any problems will surface later.
+function rm (path, cb) {
+ fs.unlink(path, function(er) {
+ cb()
+ })
+}
+
+function cmdShim (from, to, cb) {
+ fs.stat(from, function (er, stat) {
+ if (er)
+ return cb(er)
+
+ cmdShim_(from, to, cb)
+ })
+}
+
+function cmdShim_ (from, to, cb) {
+ var then = times(2, next, cb)
+ rm(to, then)
+ rm(to + ".cmd", then)
+
+ function next(er) {
+ writeShim(from, to, cb)
+ }
+}
+
+function writeShim (from, to, cb) {
+ // make a cmd file and a sh script
+ // First, check if the bin is a #! of some sort.
+ // If not, then assume it's something that'll be compiled, or some other
+ // sort of script, and just call it directly.
+ mkdir(path.dirname(to), function (er) {
+ if (er)
+ return cb(er)
+ fs.readFile(from, "utf8", function (er, data) {
+ if (er) return writeShim_(from, to, null, null, cb)
+ var firstLine = data.trim().split(/\r*\n/)[0]
+ , shebang = firstLine.match(shebangExpr)
+ if (!shebang) return writeShim_(from, to, null, null, cb)
+ var prog = shebang[1]
+ , args = shebang[2] || ""
+ return writeShim_(from, to, prog, args, cb)
+ })
+ })
+}
+
+function writeShim_ (from, to, prog, args, cb) {
+ var shTarget = path.relative(path.dirname(to), from)
+ , target = shTarget.split("/").join("\\")
+ , longProg
+ , shProg = prog && prog.split("\\").join("/")
+ , shLongProg
+ shTarget = shTarget.split("\\").join("/")
+ args = args || ""
+ if (!prog) {
+ prog = "\"%~dp0\\" + target + "\""
+ shProg = "\"$basedir/" + shTarget + "\""
+ args = ""
+ target = ""
+ shTarget = ""
+ } else {
+ longProg = "\"%~dp0\\" + prog + ".exe\""
+ shLongProg = "\"$basedir/" + prog + "\""
+ target = "\"%~dp0\\" + target + "\""
+ shTarget = "\"$basedir/" + shTarget + "\""
+ }
+
+ // @IF EXIST "%~dp0\node.exe" (
+ // "%~dp0\node.exe" "%~dp0\.\node_modules\npm\bin\npm-cli.js" %*
+ // ) ELSE (
+ // SETLOCAL
+ // SET PATHEXT=%PATHEXT:;.JS;=;%
+ // node "%~dp0\.\node_modules\npm\bin\npm-cli.js" %*
+ // )
+ var cmd
+ if (longProg) {
+ cmd = "@IF EXIST " + longProg + " (\r\n"
+ + " " + longProg + " " + args + " " + target + " %*\r\n"
+ + ") ELSE (\r\n"
+ + " @SETLOCAL\r\n"
+ + " @SET PATHEXT=%PATHEXT:;.JS;=;%\r\n"
+ + " " + prog + " " + args + " " + target + " %*\r\n"
+ + ")"
+ } else {
+ cmd = "@" + prog + " " + args + " " + target + " %*\r\n"
+ }
+
+ // #!/bin/sh
+ // basedir=`dirname "$0"`
+ //
+ // case `uname` in
+ // *CYGWIN*) basedir=`cygpath -w "$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 $ret
+
+ var sh = "#!/bin/sh\n"
+
+ if (shLongProg) {
+ sh = sh
+ + "basedir=$(dirname \"$(echo \"$0\" | sed -e 's,\\\\,/,g')\")\n"
+ + "\n"
+ + "case `uname` in\n"
+ + " *CYGWIN*) basedir=`cygpath -w \"$basedir\"`;;\n"
+ + "esac\n"
+ + "\n"
+
+ sh = sh
+ + "if [ -x "+shLongProg+" ]; then\n"
+ + " " + shLongProg + " " + args + " " + shTarget + " \"$@\"\n"
+ + " ret=$?\n"
+ + "else \n"
+ + " " + shProg + " " + args + " " + shTarget + " \"$@\"\n"
+ + " ret=$?\n"
+ + "fi\n"
+ + "exit $ret\n"
+ } else {
+ sh = shProg + " " + args + " " + shTarget + " \"$@\"\n"
+ + "exit $?\n"
+ }
+
+ var then = times(2, next, cb)
+ 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(2, cb, cb)
+ fs.chmod(to, 0755, then)
+ fs.chmod(to + ".cmd", 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()
+ }
+ }
+}