runner: minishell has an history

slapos/runner/static/js/scripts/shell.js

@@ -3,9 +3,21 @@
 /*global path: true */
 /* vim: set et sts=4: */
 
+var shellHistory = "";
+var currentCommand = 0;
+
 $(document).ready(function () {
   "use strict";
 
+  var updateHistory = function () {
+    $.getJSON("/getMiniShellHistory", function (data) {
+      shellHistory = data;
+      currentCommand = shellHistory.length;
+    });
+  };
+
+  updateHistory();
+
   $("#shell").click (function() {
     $("#shell-window").slideToggle("fast");
     if ( $("#shell-window").is(':visible') ) {
@@ -14,15 +26,40 @@ $(document).ready(function () {
   });
 
   $("#shell-input").keypress(function (event) {
+    //if Enter is pressed
     if(event.which === 13) {
-      var command = $("#shell-input").val();
       event.preventDefault();
+      var command = $("#shell-input").val();
       var data = { command: command };
       $.post("/runCommand", data, function (data) {
         data = ">>> " + command + "\n\n" + data;
         $("#shell-result").val(data);
         $("#shell-input").val("");
-    });
+        updateHistory();
+      });
+    }
+  });
+
+  $("#shell-input").keydown(function (event) {
+    //if Key Up is pressed
+    if(event.which == 38) {
+      event.preventDefault();
+      currentCommand--;
+      if (currentCommand <= 0)
+        currentCommand = 0;
+      $("#shell-input").val(shellHistory[currentCommand]);
+    }
+
+    //if Key Down is pressed
+    if(event.which === 40) {
+      event.preventDefault();
+      currentCommand++;
+      if (currentCommand > shellHistory.length) {
+        currentCommand = shellHistory.length;
+        $("#shell-input").val("");
+      } else {
+        $("#shell-input").val(shellHistory[currentCommand]);
+      }
     }
   });
 });

slapos/runner/templates/softwareFolder.html

@@ -60,7 +60,7 @@
   <div id="shell-window">
     <textarea id="shell-result" cols="80" readonly>
     </textarea>
-    <input type="text" name="command" id="shell-input" />
+    <input type="text" name="command" id="shell-input" autocomplete="off" />
   </div>
   <div class="clear"></div>
   <div class="software_details">

slapos/runner/utils.py

@@ -926,3 +926,17 @@ def setupDefaultSR(config):
     configNewSR(config, config['default_sr'])
   if config['auto_deploy']:
     thread.start_new_thread(buildAndRun, (config,))
+
+
+def setMiniShellHistory(config, command):
+  history_max_size = 10
+  command = command + "\n"
+  history_file = config['minishell_history_file']
+  if os.path.exists(history_file):
+    history = open(history_file, 'r').readlines()
+    if len(history) >= history_max_size:
+      del history[0]
+  else:
+    history = []
+  history.append(command)
+  open(history_file, 'w+').write(''.join(history))

slapos/runner/views.py

@@ -28,6 +28,7 @@ from slapos.runner.utils import (checkSoftwareFolder, configNewSR,
                                  removeSoftwareByName, runInstanceWithLock,
                                  runSoftwareWithLock, runSlapgridUntilSuccess,
                                  saveSession, saveBuildAndRunParams,
+                                 setMiniShellHistory,
                                  svcStartStopProcess, svcStopAll, tail,
                                  updateInstanceParameter)
 
@@ -728,6 +729,7 @@ def runCommand():
         if not command:
           return "Changed directory, now in : " + cwd
   try:
+    setMiniShellHistory(app.config, command)
     return subprocess.check_output(command, stderr=subprocess.STDOUT, shell=True, cwd=cwd)
   except subprocess.CalledProcessError as e:
     error = "Error : process exited with exit code " + str(e.returncode) + \
@@ -735,6 +737,16 @@ def runCommand():
     return error
 
 
+def getMiniShellHistory():
+  history_file = app.config['minishell_history_file']
+  if not os.path.exists(history_file):
+    return ""
+  history = open(history_file, 'r').readlines()
+  for line, text in enumerate(history):
+    history[line] = text.strip()
+  return json.dumps(history)
+
+
 #Setup List of URLs
 app.add_url_rule('/', 'home', home)
 app.add_url_rule('/browseWorkspace', 'browseWorkspace', browseWorkspace)
@@ -819,3 +831,4 @@ app.add_url_rule('/isSRReady', 'isSRReady', isSRReady)
 app.add_url_rule('/addUser', 'addUser', addUser, methods=['POST'])
 app.add_url_rule('/getSlapgridParameters', 'getSlapgridParameters', getSlapgridParameters, methods=['GET'])
 app.add_url_rule('/runCommand', 'runCommand', runCommand, methods=['POST'])
+app.add_url_rule("/getMiniShellHistory", 'getMiniShellHistory', getMiniShellHistory, methods=['GET'])