Report DSC execution diagnostics on a timer#6196
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JohnMcPMS wants to merge 2 commits intomicrosoft:masterfrom
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Report DSC execution diagnostics on a timer#6196JohnMcPMS wants to merge 2 commits intomicrosoft:masterfrom
JohnMcPMS wants to merge 2 commits intomicrosoft:masterfrom
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ProcessExecution already fired OutputLineReceived/ErrorLineReceived events per line as data arrived from the async stream readers, but RunSynchronously() never subscribed to them -- instead dumping all buffered output in one diagnostic message only after the process exited. If dsc.exe hangs, nothing appears in the log until (or unless) the process terminates. Add ProcessOutputBatcher, a thread-safe helper that: - Subscribes to ProcessExecution's stream events - Accumulates [out]/[err]-prefixed lines in a StringBuilder under a lock - Flushes the buffer to IDiagnosticsSink as a single batched message on a 500ms timer, so output appears promptly without one IPC call per line - Exposes Flush() to drain remaining lines after WaitForExit() Wire it into RunSynchronously(): the post-exit diagnostic now logs only the exit code (content has already been streamed). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
florelis
approved these changes
May 4, 2026
| this.buffer = new StringBuilder(); | ||
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| this.sink.OnDiagnostics(DiagnosticLevel.Verbose, this.batchHeader + toEmit); |
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Why do we need a batch header for every tick?
| foreach (string line in lines) | ||
| { | ||
| stringBuilder.AppendLine(line); | ||
| stringBuilder.Append(line).Append('\n'); |
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Why not AppendLine() anymore? And why not Environment.NewLine?
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Change
To investigate why dsc appears to start hanging with 3.2.0, output dsc lines in batches on a timer rather than after the process has exited.
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