Add button to show upgrade logs after a failure

rootfs/standard/var/www/mynode/device_info.py

@@ -91,6 +91,21 @@ def upgrade_device():
 def did_upgrade_fail():
     return os.path.isfile("/mnt/hdd/mynode/settings/upgrade_error")
 
+def get_recent_upgrade_logs():
+    logs=""
+    current_version = get_current_version()
+    for i in range(1,6):
+        filename = "/home/admin/upgrade_logs/upgrade_log_{}_post_{}.txt".format(current_version, i)
+        try:
+            with open(filename, "r") as f:
+                logs = logs + "===========================================================\n"
+                logs = logs + "=== Upgrade Attempt #{}\n".format(i)
+                logs = logs + "===========================================================\n\n\n"
+                logs = logs + f.read().decode("utf8")
+        except:
+            pass
+    return logs
+
 
 #==================================
 # Device Info

rootfs/standard/var/www/mynode/settings.py

@@ -128,6 +128,7 @@ def page_settings():
         "current_version": current_version,
         "latest_version": latest_version,
         "upgrade_error": did_upgrade_fail(),
+        "upgrade_logs": get_recent_upgrade_logs(),
         "serial_number": serial_number,
         "device_type": device_type,
         "product_key": product_key,

rootfs/standard/var/www/mynode/templates/settings.html

@@ -214,6 +214,11 @@
                     $("#mempoolspace_status").show();
                 });
 
+                $("#show_upgrade_status").on("click", function() {
+                    $("#show_upgrade_status").hide(0);
+                    $("#upgrade_status").show();
+                });
+
                 $("#show_mynode_changelog").on("click", function() {
                     if (showChangelog)
                     {
@@ -349,6 +354,8 @@
             {% elif not product_key_skipped and upgrade_error %}
                 <p style="color: red;">It appears a recent upgrade may not have fully completed.</p>
                 <button id="upgrade" class="ui-button ui-widget ui-corner-all settings_button">Retry Upgrade</button>
+                <button id="show_upgrade_status" class="ui-button ui-widget ui-corner-all settings_button">Show Upgrade Logs</button>
+                <div id="upgrade_status" style='text-align: left; font-size: 12px; width: 800px; display: none;'><pre>{{upgrade_logs}}</pre></div>
             {% endif %}
 
             <div class="divider"></div>