Save uncommitted changes

FlowHelpers/1.0.0/copyWithProgress.js

@@ -9,11 +9,17 @@ const copyWithProgress = async ({
   updateProgress,
   label,
   copyMethod = 'auto',
+  bufferSizeMb = 16,
   maxRetries = 2,
   retryDelayMs = 1000,
 }) => {
   const sourceSize = fs.statSync(source).size;
   const sourceSizeMb = (sourceSize / 1024 / 1024).toFixed(1);
+  const normalizedBufferSizeMb = Math.min(
+    Math.max(Number.parseInt(bufferSizeMb, 10) || 16, 1),
+    128,
+  );
+  const bufferSize = normalizedBufferSizeMb * 1024 * 1024;
 
   const report = (percent, message) => {
     const boundedPercent = Math.min(Math.max(percent, 0), 100);
@@ -30,8 +36,8 @@ const copyWithProgress = async ({
     const startMs = Date.now();
     let copiedBytes = 0;
     let nextProgressPercent = 0;
-    const rd = fs.createReadStream(source, { highWaterMark: 4 * 1024 * 1024 });
-    const wr = fs.createWriteStream(destination, { highWaterMark: 4 * 1024 * 1024 });
+    const rd = fs.createReadStream(source, { highWaterMark: bufferSize });
+    const wr = fs.createWriteStream(destination, { highWaterMark: bufferSize });
     let settled = false;
     const fail = (error) => {
       if (settled) return;

LocalFlowPlugins/utility/copyToWorkDir/2.0.0/index.js

@@ -33,6 +33,14 @@ const details = () => ({
       inputUI: { type: 'dropdown', options: ['auto', 'native', 'stream'] },
       tooltip: 'Auto uses the operating system copy API; stream is a fallback for problematic mounts.',
     },
+    {
+      label: 'Stream buffer size (MB)',
+      name: 'bufferSizeMb',
+      type: 'string',
+      defaultValue: '16',
+      inputUI: { type: 'dropdown', options: ['4', '16', '64'] },
+      tooltip: 'Used only with stream copy; larger values can improve high-latency SMB mounts.',
+    },
   ],
   outputs: [{ number: 1, tooltip: 'File is ready in workDir — continue to next plugin' }],
 });
@@ -66,6 +74,7 @@ const plugin = async (args) => {
     updateProgress: args.updateProgress,
     label: 'copyToWorkDir',
     copyMethod: args.inputs.copyMethod || 'auto',
+    bufferSizeMb: args.inputs.bufferSizeMb || '16',
   });
 
   return {

LocalFlowPlugins/utility/replaceOriginalFile/2.0.0/index.js

@@ -33,6 +33,14 @@ const details = () => ({
       inputUI: { type: 'dropdown', options: ['auto', 'native', 'stream'] },
       tooltip: 'Auto uses the operating system copy API; stream is a fallback for problematic mounts.',
     },
+    {
+      label: 'Stream buffer size (MB)',
+      name: 'bufferSizeMb',
+      type: 'string',
+      defaultValue: '16',
+      inputUI: { type: 'dropdown', options: ['4', '16', '64'] },
+      tooltip: 'Used only with stream copy; larger values can improve high-latency SMB mounts.',
+    },
   ],
   outputs: [{ number: 1, tooltip: 'Original file replaced — continue to next plugin' }],
 });
@@ -71,6 +79,7 @@ const plugin = async (args) => {
       updateProgress: args.updateProgress,
       label: 'replaceOriginalFile',
       copyMethod: args.inputs.copyMethod || 'auto',
+      bufferSizeMb: args.inputs.bufferSizeMb || '16',
     });
 
     if (fs.existsSync(destination)) {

README.md

@@ -281,7 +281,8 @@ Streams the source file to the worker's local `workDir`, verifies the byte count
 reports throttled copy progress, and retries failed writes twice after removing
 the partial destination. Its `Copy method` input defaults to `auto` (the
 operating system's native file-copy path) and offers `stream` as a fallback
-for problematic mounts. It stores the original library path in
+for problematic mounts. The stream fallback defaults to a 16 MB buffer and
+offers 4 MB or 64 MB alternatives. It stores the original library path in
 `variables.originalLibraryFile` for `replaceOriginalFile`.
 
 ### 9. `replaceOriginalFile` — Replace Original File

docs/integration-guide.md

@@ -124,7 +124,8 @@ the library path for `replaceOriginalFile` 2.0.0.
 Both progress-enabled copy operations verify the destination size and retry
 failed writes twice after removing the partial destination. Their `Copy method`
 input defaults to `auto` (the operating system's native file-copy path), with
-`stream` available as a fallback for problematic SMB/CIFS mounts.
+`stream` available as a fallback for problematic SMB/CIFS mounts. Stream mode
+supports 4 MB, 16 MB, and 64 MB buffers.
 Both progress-enabled plugins require
 `FlowHelpers/1.0.0/copyWithProgress.js`; the installer downloads it
 automatically.

tests/quick-logic-test.js

@@ -225,6 +225,8 @@ const AUDIO_INPUTS = {
   ok(copyHelperCode.includes('fs.promises.copyFile(source, destination)'), 'copy helper uses native file copying');
   ok(copyHelperCode.includes("copyMethod = 'auto'"), 'copy helper defaults to automatic copy selection');
   ok(copyHelperCode.includes("copyMethod === 'stream'"), 'copy helper supports stream fallback');
+  ok(copyHelperCode.includes('bufferSizeMb = 16'), 'copy helper defaults stream buffer to 16 MB');
+  ok(copyHelperCode.includes('128'), 'copy helper caps stream buffer size');
 
   // ── Summary ───────────────────────────────────────────────────────────────
   console.log(`\n${'='.repeat(55)}`);