Added proper working dir detection. Instanceroot still needs review.

index.js

 const homedir = require('os').homedir();
 
 
-var ENV = Object.assign({}, process.env); // Shallow clone it.
-
 function sysAddPathVar(path){
   // Object.assign({
   //   inherit: true, shell: true, env: ENV, title: `${command} ${args}`
 const fs = require('fs')
 
 const cliargs = utils.cliargs;
-const processedArgs = cliargs(process.argv.slice(2));
+const processedArgs = cliargs(process.argv);
+if(!processedArgs.wd){
+  if(process.env.wd){
+  
+  }
+  else {
+    process.env.wd = process.cwd();
+    if(process.cwd() === __dirname) {
+      // This script was launched in the same dir.
+    }
+  }
+}
+else process.env.wd = processedArgs.wd
+var ENV = Object.assign({}, process.env); // Shallow clone it.
+
+
+
 console.dir(processedArgs)
 // PB : TODO -- defaults for valuless arguments if passed.
 // Object.keys(processedArgs).forEach(a=>{
 
     if (__isElevated) {
       try {
-        op[processedArgs.label || processedArgs._[0] || 'undefined']()
+        op[processedArgs.label || processedArgs._[0] || 'undefined'](processedArgs)
       }
       catch (e) {
         console.error('Error Invalid command : ' + e)
         console.log('result : ' + JSON.stringify(r))
         Object.keys(processedArgs).forEach((v) => { v != '_' ? namedArgs.push('--' + v + '=' + processedArgs[v]) : null; })
         // PB : TODO -- Convert all the cli args back to string.
-        var args = [`${selectedinstance.root}/.elxr/run-${runtimestamp}/windowselevate.hta`].concat(processedArgs._).concat(namedArgs.join(' ')); args.push('--runas=self');
+        var args = [`${selectedinstance.root}/.elxr/run-${runtimestamp}/windowselevate.hta`].concat(processedArgs._)
+        namedArgs.length > 0 ? args = args.concat(namedArgs.join(' ')) : null; 
+        args.push('--runas=self');
         // args.push('--nodepath=' + r.messages[r.messages.length - 1])
         // if (!processedArgs.node_env) args.push('--node_env=' + ENV.NODE_ENV)
         // if (processedArgs.debug) args.push('--debug=true') // Enable to debug elevated..
-        console.dir(processedArgs)
+        // console.dir(processedArgs._)
+        // console.dir(namedArgs.join(' '))
+        console.dir(args)
+        // throw 'test'
 
         return nodeShellExec('MSHTA', [`"${args.join('" "')}"`]
           , {
         // sourecpathandfile should include name of file name
         targetfilename = cmdopts.targetfilename || processedArgs._[1]
         // console.log(processedArgs)
-        if(!targetfilename) Promise.reject('error no file provided for linking')
+        if(!targetfilename) return Promise.reject('error no file provided for linking')
         targetdir = cmdopts.targetdir || process.env.wd
         sourecpathandfile = cmdopts.sourecpathandfile || path.normalize(`../../node_modules/chess-server-lib/common/models/${targetfilename}`)
 
   })
 }
 
-var launchpath = path.normalize(process.cwd())
+var launchpath = path.resolve(path.normalize(process.env.wd))
 var thisscriptdir = path.normalize(__dirname); // PB : TODO -- Thisscriptdir could be dislocated when run as a standalone file... We need to detect this where and how we were run.
 // The easisest would be to ask for a target directory and default to current dir.... 
-var instanceroot = path.normalize(thisscriptdir) === path.normalize(launchpath) ? path.normalize(thisscriptdir + '/..') : launchpath ;
+// path.dirname(launchpath).split(path.sep).pop()
+
+var parent = path.dirname(launchpath);
+var pp = launchpath;
+var instancediscoverytasks = [];
+while(parent !== pp){
+  instancediscoverytasks.push(
+    ((pa)=>{
+      var p = pa;
+      return function(){ 
+        return hasElxr(p).then((value)=>{ 
+            if(value) return p
+            throw { value : false };
+          }) 
+      } 
+    })(pp)
+  )
+  pp = parent;
+  parent = path.dirname(parent);
+}
+
+var instanceroot = null 
+var detectInstanceRoot = any(instancediscoverytasks, true, true).then( ir => instanceroot = ir.pVal ).catch(()=>{
+  instanceroot = path.normalize(thisscriptdir) === path.normalize(launchpath) ? path.normalize(thisscriptdir + '/..') : launchpath ;
+})
+
 
 // PB : TODO -- Embed this in the build instead of inlining it.
   // Also attepmt to load from ../chess-config/...
 
 var mainTasks = [];
 function verifyAndInstallPrerequisites() {
-  fs.writeFileSync(ensureDirectoryExistence(path.normalize(`${selectedinstance.root}/${downloadsdir}/readme.txt`)), `${getVersion()} Your local downloads for this instance`)
-  
-  // PB : TODO include and build from files... using rollup..
-  var downloadbatch =
-    `::**************************************************************************
-  :Download_ <url> <File>
-    Powershell.exe ^
-    $AllProtocols = [System.Net.SecurityProtocolType]'Ssl3,Tls,Tls11,Tls12'; ^
-    [System.Net.ServicePointManager]::SecurityProtocol = $AllProtocols; ^
-    (New-Object System.Net.WebClient).DownloadFile('%1','%2')
-  exit /b
-  ::**************************************************************************`
-  fs.writeFileSync(`${selectedinstance.root}/.elxr/run-${runtimestamp}/download.bat`, downloadbatch)
-
-  
-  var windowselevate =
-    `     
-      <html><HTA:APPLICATION  ID="windowselevate" icon="#"/>
-      <script language="vbscript">
-        document.title = "elxr control panel"
-        self.ResizeTo 200,600
-        
-        Sub Window_Onload
-        self.MoveTo (screen.availWidth - (document.body.clientWidth + 40)),10
-        End Sub
-
-        Set objShell = CreateObject("WScript.Shell")
-        Set objENV = objShell.Environment("Process")
-        dim NODE_ENV 
-        NODE_ENV = objENV("NODE_ENV")
-      </script>
-
-      <script language="javascript">
-        //WINDOWSTATE="minimize" SHOWINTASKBAR="no" SYSMENU="no" CAPTION="no"
-        // https://devblogs.microsoft.com/scripting/how-can-i-pass-command-line-variables-to-an-hta-when-it-starts/
-        // alert(windowselevate.commandLine)
-        var args = windowselevate.commandLine.split('"').slice(3);
-        // alert(args)
-        var processedArgs = { _ : [] }
-        var namedArgs = [];
-        for(var item in args){
-          if(args[item].charAt(0) === '-'){ 
-            namedArgs.push(args[item])
-            var split = args[item].split('=');
-            processedArgs[split[0].slice(2)] = split[1] || true;
-          } 
-          else processedArgs._.push(args[item]);
-        }
-        // args = args.forEach(function(item){ })
-        // alert('processedArgs._ : ' + processedArgs._);
-        // alert(processedArgs.runas);
-        
-        // PB : TODO -- Convert all the cli args back to string.
-        var cargs = (processedArgs.debug ? '--inspect-brk=9228' : '') + ' elxr ' + processedArgs._.join(' ') + ' ' +  namedArgs.join(' ');
-        // alert(cargs)
-        var shell = new ActiveXObject('shell.application'); 
-        // alert('launching node privilged. ' + processedArgs['nodepath']) 
-        // shell.ShellExecute('where', 'node', '', '', 10);
-        // shell.ShellExecute('cmd.exe', '/k notepad.exe', '', 'runas', 1);
-        // shell.ShellExecute('cmd.exe ', '/k node "' + cargs + '"', '', 'runas', 1);
-        shell.ShellExecute('node', cargs, '', 'runas', 1);
-        // shell.ShellExecute(processedArgs['nodepath'], cargs, '', 'runas', 1);
-        var fso = new ActiveXObject('Scripting.FileSystemObject');
-        
-        window.onload = function() {
-          document.body.style.backgroundColor = 'black';
-          document.body.style.fontFamily = 'arial';
-          var log = document.createElement('div');
-          log.innerHTML='Please Wait';
-          function l(msg){ log.innerHTML+= msg; };
-          log.style.color = 'blue';
-          log.style.width = '95%';
-          log.id = 'log';
-          document.body.appendChild(log);  
-          
-          l('<Br/>Current config : ')
-          l('<Br/>NODE_ENV = ' + NODE_ENV)
-          l('<Br/>cmd = ' + processedArgs._[0])
-          processedArgs._[1] === 'use' ? l('<Br/>using = ' + processedArgs._[2]) : null;
-          l('<Br/><Br/>')
-          
-          var timer = function(){
-            l('.');
-            if(fso.FileExists("run.done")) close();
-            else window.setTimeout(timer, 1000);
-          };
-          window.setTimeout(timer, 3000);
-        };
-        
-      </script>
-      </html>
-    
-    `
-  fs.writeFileSync(`${selectedinstance.root}/.elxr/run-${runtimestamp}/windowselevate.hta`, windowselevate)
-
   var downloadtasks = [];
   var installtasks = [];
   prerequisites.forEach(preq => {
 
 }
 
+var generateDependencies = function(){
+  // PB : TODO -- Keep only the last n runs...
+  // Currently it retains 2*n when proc needs to be relaunched in elevated mode !!!
+
+  ensureDirectoryExistence(`${selectedinstance.root}/.elxr/run-${runtimestamp}/download.bat`)
+  fs.writeFileSync(ensureDirectoryExistence(path.normalize(`${selectedinstance.root}/${downloadsdir}/readme.txt`)), `${getVersion()} Your local downloads for this instance`)
+  
+  // PB : TODO include and build from files... using rollup..
+  var downloadbatch =
+    `::**************************************************************************
+  :Download_ <url> <File>
+    Powershell.exe ^
+    $AllProtocols = [System.Net.SecurityProtocolType]'Ssl3,Tls,Tls11,Tls12'; ^
+    [System.Net.ServicePointManager]::SecurityProtocol = $AllProtocols; ^
+    (New-Object System.Net.WebClient).DownloadFile('%1','%2')
+  exit /b
+  ::**************************************************************************`
+  fs.writeFileSync(`${selectedinstance.root}/.elxr/run-${runtimestamp}/download.bat`, downloadbatch)
+
+  
+  var windowselevate =
+    `     
+      <html><HTA:APPLICATION  ID="windowselevate" icon="#"/>
+      <script language="vbscript">
+        document.title = "elxr control panel"
+        self.ResizeTo 200,600
+        
+        Sub Window_Onload
+        self.MoveTo (screen.availWidth - (document.body.clientWidth + 40)),10
+        End Sub
+
+        Set objShell = CreateObject("WScript.Shell")
+        Set objENV = objShell.Environment("Process")
+        dim NODE_ENV 
+        NODE_ENV = objENV("NODE_ENV")
+        
+      </script>
+
+      <script language="javascript">
+        //WINDOWSTATE="minimize" SHOWINTASKBAR="no" SYSMENU="no" CAPTION="no"
+        // https://devblogs.microsoft.com/scripting/how-can-i-pass-command-line-variables-to-an-hta-when-it-starts/
+        // alert(windowselevate.commandLine)
+        var args = windowselevate.commandLine.split('"').slice(3);
+        // alert(args)
+        var processedArgs = { _ : [] }
+        var namedArgs = [];
+        namedArgs.push('--wd=' + objENV('wd'))
+        // alert(namedArgs)
+        for(var item in args){
+          if(args[item].charAt(0) === '-'){ 
+            namedArgs.push(args[item])
+            var split = args[item].split('=');
+            processedArgs[split[0].slice(2)] = split[1] || true;
+          } 
+          else processedArgs._.push(args[item]);
+        }
+        // args = args.forEach(function(item){ })
+        // alert('processedArgs._ : ' + processedArgs._);
+        // alert(processedArgs.runas);
+        // alert(objENV('wd'))
+        // PB : TODO -- Convert all the cli args back to string.
+        // __filename will sure we are launhed using the same entry point.
+        var cargs = (processedArgs.debug ? '--inspect-brk=9228' : '') + ' ${path.basename(__filename)} ' + processedArgs._.join(' ') + ' ' +  namedArgs.join(' ');
+        // alert(cargs)
+        var shell = new ActiveXObject('shell.application'); 
+        // alert('launching node privilged. ' + processedArgs['nodepath']) 
+        // shell.ShellExecute('where', 'node', '', '', 10);
+        // shell.ShellExecute('cmd.exe', '/k notepad.exe', '', 'runas', 1);
+        // shell.ShellExecute('cmd.exe ', '/k node "' + cargs + '"', '', 'runas', 1);
+        shell.ShellExecute('node', cargs, '', 'runas', 1);
+        // shell.ShellExecute(processedArgs['nodepath'], cargs, '', 'runas', 1);
+        var fso = new ActiveXObject('Scripting.FileSystemObject');
+        
+        window.onload = function() {
+          document.body.style.backgroundColor = 'black';
+          document.body.style.fontFamily = 'arial';
+          var log = document.createElement('div');
+          log.innerHTML='Please Wait';
+          function l(msg){ log.innerHTML+= msg; };
+          log.style.color = 'blue';
+          log.style.width = '95%';
+          log.id = 'log';
+          document.body.appendChild(log);  
+          
+          l('<Br/>Current config : ')
+          l('<Br/>NODE_ENV = ' + NODE_ENV)
+          l('<Br/>cmd = ' + processedArgs._[0])
+          processedArgs._[1] === 'use' ? l('<Br/>using = ' + processedArgs._[2]) : null;
+          l('<Br/><Br/>')
+          
+          var timer = function(){
+            l('.');
+            if(fso.FileExists("run.done")) close();
+            else window.setTimeout(timer, 1000);
+          };
+          window.setTimeout(timer, 3000);
+        };
+        
+      </script>
+      </html>
+    
+    `
+  fs.writeFileSync(`${selectedinstance.root}/.elxr/run-${runtimestamp}/windowselevate.hta`, windowselevate)
+}
+
 var startElxr = function() {
   const retaincount = 2
   var min = runtimestamp;
   })
   .then(()=>{
 
+    generateDependencies();
     if(noprerequisites[processedArgs._[0]]
       || skipprereqs[processedArgs._[0]]
     ) {
         }
         else return true
       })
+      
+      if (!skipprerequisites && !__isElevated || processedArgs.forceprereqs && !__isElevated ) mainTasks.push(verifyAndInstallPrerequisites);
+      mainTasks.push(maintask)
+      return any(mainTasks);
     }
     else return true;
   })
   .then(()=>{
-    // PB : TODO -- Keep only the last n runs...
-    // Currently it retains 2*n when proc needs to be relaunched in elevated mode !!!
-    ensureDirectoryExistence(`${selectedinstance.root}/.elxr/run-${runtimestamp}/download.bat`)
     
-    if (!skipprerequisites && !__isElevated || processedArgs.forceprereqs && !__isElevated ) mainTasks.push(verifyAndInstallPrerequisites);
-    mainTasks.push(maintask)
-    return any(mainTasks);
   })
 }
 
-acquireElevationState().then(() => {
-  
-
-  return startElxr()
+detectInstanceRoot.then(()=>{
+  return acquireElevationState().then(() => {
+    return startElxr()
+  })
 })
 
 // detect if alread installed -> Take no action.