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Commit 122f78f

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Added OnBeforeStartExternalProcess callback which to NodeServicesOptions (and OutOfProcessNodeInstance, SocketNodeInstance and HttpNodeInstance) to configure environment of the node.exe process to be started, and the path to the node executable itself. Fixes #20 
1 parent 58bf117 commit 122f78f

4 files changed

Lines changed: 31 additions & 23 deletions

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‎src/Microsoft.AspNetCore.NodeServices/Configuration/NodeServicesOptions.cs‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -14,7 +14,7 @@ public NodeServicesOptions()
1414
HostingModel = DefaultNodeHostingModel;
1515
WatchFileExtensions = (string[])DefaultWatchFileExtensions.Clone();
1616
}
17-
17+
public Action<System.Diagnostics.ProcessStartInfo> OnBeforeStartExternalProcess { get; set; }
1818
public NodeHostingModel HostingModel { get; set; }
1919
public Func<INodeInstance> NodeInstanceFactory { get; set; }
2020
public string ProjectPath { get; set; }

‎src/Microsoft.AspNetCore.NodeServices/HostingModels/HttpNodeInstance.cs‎

Lines changed: 16 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -28,21 +28,22 @@ internal class HttpNodeInstance : OutOfProcessNodeInstance
2828
ContractResolver = new CamelCasePropertyNamesContractResolver()
2929
};
3030

31-
private readonly HttpClient _client;
31+
private readonly HttpClient _client;
3232
private bool _disposed;
3333
private int _portNumber;
3434

35-
public HttpNodeInstance(string projectPath, string[] watchFileExtensions, int port = 0)
35+
public HttpNodeInstance(string projectPath, string[] watchFileExtensions, int port = 0, Action<System.Diagnostics.ProcessStartInfo> onBeforeStartExternalProcess = null)
3636
: base(
3737
EmbeddedResourceReader.Read(
3838
typeof(HttpNodeInstance),
3939
"/Content/Node/entrypoint-http.js"),
4040
projectPath,
4141
watchFileExtensions,
42-
MakeCommandLineOptions(port))
42+
MakeCommandLineOptions(port),
43+
onBeforeStartExternalProcess)
4344
{
4445
_client = new HttpClient();
45-
}
46+
}
4647

4748
private static string MakeCommandLineOptions(int port)
4849
{
@@ -112,18 +113,19 @@ protected override void OnOutputDataReceived(string outputData)
112113
}
113114
}
114115

115-
protected override void Dispose(bool disposing) {
116-
base.Dispose(disposing);
116+
protected override void Dispose(bool disposing)
117+
{
118+
base.Dispose(disposing);
117119

118-
if (!_disposed)
120+
if (!_disposed)
119121
{
120-
if (disposing)
122+
if (disposing)
121123
{
122-
_client.Dispose();
123-
}
124+
_client.Dispose();
125+
}
124126

125-
_disposed = true;
126-
}
127-
}
128-
}
127+
_disposed = true;
128+
}
129+
}
130+
}
129131
}

‎src/Microsoft.AspNetCore.NodeServices/HostingModels/OutOfProcessNodeInstance.cs‎

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -31,10 +31,11 @@ public OutOfProcessNodeInstance(
3131
string entryPointScript,
3232
string projectPath,
3333
string[] watchFileExtensions,
34-
string commandLineArguments)
34+
string commandLineArguments,
35+
Action<System.Diagnostics.ProcessStartInfo> onBeforeStartExternalProcess = null)
3536
{
3637
_entryPointScript = new StringAsTempFile(entryPointScript);
37-
_nodeProcess = LaunchNodeProcess(_entryPointScript.FileName, projectPath, commandLineArguments);
38+
_nodeProcess = LaunchNodeProcess(_entryPointScript.FileName, projectPath, commandLineArguments, onBeforeStartExternalProcess);
3839
_watchFileExtensions = watchFileExtensions;
3940
_fileSystemWatcher = BeginFileWatcher(projectPath);
4041
ConnectToInputOutputStreams();
@@ -111,7 +112,7 @@ private void EnsureFileSystemWatcherIsDisposed()
111112
}
112113
}
113114

114-
private static Process LaunchNodeProcess(string entryPointFilename, string projectPath, string commandLineArguments)
115+
private static Process LaunchNodeProcess(string entryPointFilename, string projectPath, string commandLineArguments, Action<System.Diagnostics.ProcessStartInfo> onBeforeStartExternalProcess)
115116
{
116117
var startInfo = new ProcessStartInfo("node")
117118
{
@@ -136,6 +137,10 @@ private static Process LaunchNodeProcess(string entryPointFilename, string proje
136137
#else
137138
startInfo.Environment["NODE_PATH"] = nodePathValue;
138139
#endif
140+
if (onBeforeStartExternalProcess != null)
141+
{
142+
onBeforeStartExternalProcess(startInfo);
143+
}
139144

140145
var process = Process.Start(startInfo);
141146

‎src/Microsoft.AspNetCore.NodeServices/HostingModels/SocketNodeInstance.cs‎

Lines changed: 6 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -25,7 +25,7 @@ namespace Microsoft.AspNetCore.NodeServices.HostingModels
2525
/// <seealso cref="Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance" />
2626
internal class SocketNodeInstance : OutOfProcessNodeInstance
2727
{
28-
private readonly static JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings
28+
private readonly static JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings
2929
{
3030
ContractResolver = new CamelCasePropertyNamesContractResolver()
3131
};
@@ -36,16 +36,17 @@ internal class SocketNodeInstance : OutOfProcessNodeInstance
3636
private string _socketAddress;
3737
private VirtualConnectionClient _virtualConnectionClient;
3838

39-
public SocketNodeInstance(string projectPath, string[] watchFileExtensions, string socketAddress): base(
39+
public SocketNodeInstance(string projectPath, string[] watchFileExtensions, string socketAddress, Action<System.Diagnostics.ProcessStartInfo> onBeforeStartExternalProcess = null) : base(
4040
EmbeddedResourceReader.Read(
4141
typeof(SocketNodeInstance),
4242
"/Content/Node/entrypoint-socket.js"),
4343
projectPath,
4444
watchFileExtensions,
45-
MakeNewCommandLineOptions(socketAddress))
45+
MakeNewCommandLineOptions(socketAddress),
46+
onBeforeStartExternalProcess)
4647
{
4748
_socketAddress = socketAddress;
48-
}
49+
}
4950

5051
protected override async Task<T> InvokeExportAsync<T>(NodeInvocationInfo invocationInfo)
5152
{
@@ -170,7 +171,7 @@ private static async Task<T> ReadJsonAsync<T>(Stream stream)
170171

171172
private static async Task<byte[]> ReadAllBytesAsync(Stream input)
172173
{
173-
byte[] buffer = new byte[16*1024];
174+
byte[] buffer = new byte[16 * 1024];
174175

175176
using (var ms = new MemoryStream())
176177
{

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