added is os flow elements

BasicNodes/SystemElements/IsDocker.cs

@@ -0,0 +1,28 @@
+using FileFlows.Plugin;
+
+namespace FileFlows.BasicNodes.SystemElements;
+
+/// <summary>
+/// A flow to determine if this is running on Docker or not
+/// </summary>
+public class IsDocker : Node
+{
+    /// <inheritdoc />
+    public override int Inputs => 1;
+    /// <inheritdoc />
+    public override int Outputs => 2;
+    /// <inheritdoc />
+    public override FlowElementType Type => FlowElementType.Logic;
+    /// <inheritdoc />
+    public override string Group => "System";
+    /// <inheritdoc />
+    public override string Icon => "fab fa-docker";
+    /// <inheritdoc />
+    public override string HelpUrl => "https://fileflows.com/docs/plugins/basic-nodes/system/is-docker";
+    /// <inheritdoc />
+    public override string CustomColor => "#2481e4";
+
+    /// <inheritdoc />
+    public override int Execute(NodeParameters args)
+        => args.IsDocker ? 1 : 2;
+}

BasicNodes/SystemElements/IsLinux.cs

@@ -0,0 +1,28 @@
+using FileFlows.Plugin;
+
+namespace FileFlows.BasicNodes.SystemElements;
+
+/// <summary>
+/// A flow to determine if this is running on Linux or not
+/// </summary>
+public class IsLinux : Node
+{
+    /// <inheritdoc />
+    public override int Inputs => 1;
+    /// <inheritdoc />
+    public override int Outputs => 2;
+    /// <inheritdoc />
+    public override FlowElementType Type => FlowElementType.Logic;
+    /// <inheritdoc />
+    public override string Group => "System";
+    /// <inheritdoc />
+    public override string Icon => "fab fa-linux";
+    /// <inheritdoc />
+    public override string HelpUrl => "https://fileflows.com/docs/plugins/basic-nodes/system/is-linux";
+    /// <inheritdoc />
+    public override string CustomColor => "#2481e4";
+
+    /// <inheritdoc />
+    public override int Execute(NodeParameters args)
+        => args.IsDocker == false && OperatingSystem.IsLinux() ? 1 : 2;
+}

BasicNodes/SystemElements/IsMacOS.cs

@@ -0,0 +1,28 @@
+using FileFlows.Plugin;
+
+namespace FileFlows.BasicNodes.SystemElements;
+
+/// <summary>
+/// A flow to determine if this is running on MacOS  or not
+/// </summary>
+public class IsMacOS : Node
+{
+    /// <inheritdoc />
+    public override int Inputs => 1;
+    /// <inheritdoc />
+    public override int Outputs => 2;
+    /// <inheritdoc />
+    public override FlowElementType Type => FlowElementType.Logic;
+    /// <inheritdoc />
+    public override string Group => "System";
+    /// <inheritdoc />
+    public override string Icon => "fab fa-apple";
+    /// <inheritdoc />
+    public override string HelpUrl => "https://fileflows.com/docs/plugins/basic-nodes/system/is-mac-os";
+    /// <inheritdoc />
+    public override string CustomColor => "#2481e4";
+
+    /// <inheritdoc />
+    public override int Execute(NodeParameters args)
+        => OperatingSystem.IsMacOS() ? 1 : 2;
+}

BasicNodes/SystemElements/IsWindows.cs

@@ -0,0 +1,28 @@
+using FileFlows.Plugin;
+
+namespace FileFlows.BasicNodes.SystemElements;
+
+/// <summary>
+/// A flow to determine if this is running on windows or not
+/// </summary>
+public class IsWindows : Node
+{
+    /// <inheritdoc />
+    public override int Inputs => 1;
+    /// <inheritdoc />
+    public override int Outputs => 2;
+    /// <inheritdoc />
+    public override FlowElementType Type => FlowElementType.Logic;
+    /// <inheritdoc />
+    public override string Group => "System";
+    /// <inheritdoc />
+    public override string Icon => "fab fa-windows";
+    /// <inheritdoc />
+    public override string HelpUrl => "https://fileflows.com/docs/plugins/basic-nodes/system/is-windows";
+    /// <inheritdoc />
+    public override string CustomColor => "#2481e4";
+
+    /// <inheritdoc />
+    public override int Execute(NodeParameters args)
+        => OperatingSystem.IsWindows() ? 1 : 2;
+}

BasicNodes/i18n/en.json

@@ -220,6 +220,35 @@
             "2": "Is not processing on node"
           }
         },
+        "IsDocker": {
+          "Description": "Determines if this flow is running on Docker",
+          "Outputs": {
+            "1": "Is running on Docker",
+            "2": "Is not running on Docker"
+          }
+        },
+        "IsLinux": {
+          "Description": "Determines if this flow is running on Linux",
+          "Outputs": {
+            "1": "Is running on Linux",
+            "2": "Is not running on Linux"
+          }
+        },
+        "IsMacOS": {
+          "Label": "Is MacOS",
+          "Description": "Determines if this flow is running on MacOS",
+          "Outputs": {
+            "1": "Is running on MacOS",
+            "2": "Is not running on MacOS"
+          }
+        },
+        "IsWindows": {
+          "Description": "Determines if this flow is running on Windows",
+          "Outputs": {
+            "1": "Is running on Windows",
+            "2": "Is not running on Windows"
+          }
+        },
         "Log": {
           "Description": "Logs a message to the flow log",
           "Outputs": {