From 5d43ba6a267bceb1048ea6241694de5a4b8b8a48 Mon Sep 17 00:00:00 2001
From: PickleRick <davidecavagnola@gmail.com>
Date: Mon, 21 Sep 2026 12:34:15 +0200
Subject: [PATCH] Save uncommitted changes

---
 FlowHelpers/1.0.0/copyWithProgress.js         |  71 +++++++++++
 .../utility/copyToWorkDir/2.0.0/index.js      |  70 +++++++++++
 .../replaceOriginalFile/1.0.0/index.js        | 114 ++++++++++++++++++
 .../replaceOriginalFile/2.0.0/index.js        |  99 +++++++++++++++
 README.md                                     |  35 +++++-
 docs/integration-guide.md                     |  25 ++--
 install.sh                                    |  28 +++--
 tests/quick-logic-test.js                     |   8 ++
 8 files changed, 430 insertions(+), 20 deletions(-)
 create mode 100644 FlowHelpers/1.0.0/copyWithProgress.js
 create mode 100644 LocalFlowPlugins/utility/copyToWorkDir/2.0.0/index.js
 create mode 100644 LocalFlowPlugins/utility/replaceOriginalFile/1.0.0/index.js
 create mode 100644 LocalFlowPlugins/utility/replaceOriginalFile/2.0.0/index.js

diff --git a/FlowHelpers/1.0.0/copyWithProgress.js b/FlowHelpers/1.0.0/copyWithProgress.js
new file mode 100644
index 0000000..7aab71d
--- /dev/null
+++ b/FlowHelpers/1.0.0/copyWithProgress.js
@@ -0,0 +1,71 @@
+'use strict';
+
+const fs = require('fs');
+
+const copyWithProgress = async ({ source, destination, jobLog, updateProgress, label }) => {
+  const sourceSize = fs.statSync(source).size;
+  const sourceSizeMb = (sourceSize / 1024 / 1024).toFixed(1);
+  const startMs = Date.now();
+  let copiedBytes = 0;
+  let nextProgressPercent = 0;
+
+  const report = (percent, message) => {
+    const boundedPercent = Math.min(Math.max(percent, 0), 100);
+    if (typeof updateProgress === 'function') {
+      updateProgress({
+        progress: boundedPercent,
+        jobLog: message,
+      });
+    }
+    if (typeof jobLog === 'function') jobLog(`${message}\n`);
+  };
+
+  await new Promise((resolve, reject) => {
+    const rd = fs.createReadStream(source);
+    const wr = fs.createWriteStream(destination);
+    let settled = false;
+    const fail = (error) => {
+      if (settled) return;
+      settled = true;
+      rd.destroy();
+      wr.destroy();
+      reject(error);
+    };
+
+    rd.on('error', fail);
+    wr.on('error', fail);
+    wr.on('finish', () => {
+      if (settled) return;
+      settled = true;
+      resolve();
+    });
+    rd.on('data', (chunk) => {
+      copiedBytes += chunk.length;
+      const percent = sourceSize === 0 ? 100 : Math.floor((copiedBytes / sourceSize) * 100);
+      if (percent < nextProgressPercent) return;
+
+      const elapsedSeconds = Math.max((Date.now() - startMs) / 1000, 0.1);
+      const copiedMb = (copiedBytes / 1024 / 1024).toFixed(1);
+      const speedMbPerSecond = (copiedBytes / 1024 / 1024 / elapsedSeconds).toFixed(1);
+      report(
+        percent,
+        `[${label}] Progress: ${Math.min(percent, 100)}% `
+          + `(${copiedMb}/${sourceSizeMb} MB, ${speedMbPerSecond} MB/s)`,
+      );
+      nextProgressPercent = (Math.floor(percent / 10) + 1) * 10;
+    });
+    rd.pipe(wr);
+  });
+
+  const destinationSize = fs.statSync(destination).size;
+  if (destinationSize !== sourceSize) {
+    throw new Error(
+      `[${label}] Copy size mismatch: expected ${sourceSize} bytes, got ${destinationSize}`,
+    );
+  }
+
+  const elapsed = ((Date.now() - startMs) / 1000).toFixed(1);
+  report(100, `[${label}] Done: ${sourceSizeMb} MB copied in ${elapsed}s`);
+};
+
+module.exports = { copyWithProgress };
diff --git a/LocalFlowPlugins/utility/copyToWorkDir/2.0.0/index.js b/LocalFlowPlugins/utility/copyToWorkDir/2.0.0/index.js
new file mode 100644
index 0000000..3c90a43
--- /dev/null
+++ b/LocalFlowPlugins/utility/copyToWorkDir/2.0.0/index.js
@@ -0,0 +1,70 @@
+'use strict';
+
+const path = require('path');
+const fs = require('fs');
+const { copyWithProgress } = require('../../../../FlowHelpers/1.0.0/copyWithProgress');
+
+const details = () => ({
+  name: 'Copy Source to Work Dir (Progress)',
+  description:
+    'Copies the source file into the worker local workDir using a streamed, verified copy '
+    + 'with progress updates. Use before transcode plugins for files on network shares.',
+  style: { borderColor: '#607D8B' },
+  tags: 'utility,copy,progress',
+  isStartPlugin: false,
+  pType: '',
+  requiresVersion: '2.11.01',
+  sidebarPosition: 0,
+  icon: 'faCopy',
+  inputs: [
+    {
+      label: 'Skip if already local',
+      name: 'skipIfLocal',
+      type: 'boolean',
+      defaultValue: 'true',
+      inputUI: { type: 'dropdown', options: ['true', 'false'] },
+      tooltip: 'Skip when the source is already inside workDir.',
+    },
+  ],
+  outputs: [{ number: 1, tooltip: 'File is ready in workDir — continue to next plugin' }],
+});
+
+const plugin = async (args) => {
+  const { jobLog, inputFileObj, variables, workDir } = args;
+  const inputFile = inputFileObj._id;
+  const ext = path.extname(inputFile);
+  const baseName = path.basename(inputFile, ext);
+  const localCopy = path.join(workDir, `${baseName}_old${ext}`);
+  const skipIfLocal = (args.inputs.skipIfLocal || 'true') === 'true';
+
+  const relativeInput = path.relative(path.resolve(workDir), path.resolve(inputFile));
+  if (skipIfLocal && relativeInput !== '..' && !relativeInput.startsWith(`..${path.sep}`)
+      && !path.isAbsolute(relativeInput)) {
+    jobLog('[copyToWorkDir] Source file is already inside workDir — skipping copy.\n');
+    return { outputNumber: 1, outputFileObj: inputFileObj, variables };
+  }
+  if (!fs.existsSync(inputFile)) throw new Error(`[copyToWorkDir] Source file not found: ${inputFile}`);
+
+  variables.originalLibraryFile = variables.originalLibraryFile || inputFile;
+  variables.originalLibraryDir = variables.originalLibraryDir || path.dirname(inputFile);
+  variables.workDirSourceBaseName = baseName;
+  variables.workDirCopyApplied = 'true';
+
+  jobLog(`[copyToWorkDir] Copying ${inputFile} to ${localCopy}\n`);
+  await copyWithProgress({
+    source: inputFile,
+    destination: localCopy,
+    jobLog,
+    updateProgress: args.updateProgress,
+    label: 'copyToWorkDir',
+  });
+
+  return {
+    outputNumber: 1,
+    outputFileObj: { ...inputFileObj, _id: localCopy },
+    variables,
+  };
+};
+
+module.exports.details = details;
+module.exports.plugin = plugin;
diff --git a/LocalFlowPlugins/utility/replaceOriginalFile/1.0.0/index.js b/LocalFlowPlugins/utility/replaceOriginalFile/1.0.0/index.js
new file mode 100644
index 0000000..801da4a
--- /dev/null
+++ b/LocalFlowPlugins/utility/replaceOriginalFile/1.0.0/index.js
@@ -0,0 +1,114 @@
+'use strict';
+
+const path = require('path');
+const fs = require('fs');
+
+const details = () => ({
+  name: 'Replace Original File',
+  description:
+    'Copies the processed file to the original library path, verifies the copy, '
+    + 'and atomically replaces the original with rollback if replacement fails.',
+  style: { borderColor: '#FF9800' },
+  tags: 'utility,replace',
+  isStartPlugin: false,
+  pType: '',
+  requiresVersion: '2.11.01',
+  sidebarPosition: 1,
+  icon: 'faExchangeAlt',
+  inputs: [
+    {
+      label: 'Delete processed work file',
+      name: 'deleteSource',
+      type: 'boolean',
+      defaultValue: 'true',
+      inputUI: { type: 'dropdown', options: ['true', 'false'] },
+      tooltip: 'Delete the processed file after it has replaced the original.',
+    },
+  ],
+  outputs: [{ number: 1, tooltip: 'Original file replaced — continue to next plugin' }],
+});
+
+const copyAndVerify = (source, destination) => {
+  fs.copyFileSync(source, destination);
+  const sourceSize = fs.statSync(source).size;
+  const destinationSize = fs.statSync(destination).size;
+  if (sourceSize !== destinationSize) {
+    throw new Error(
+      `Copy size mismatch: expected ${sourceSize} bytes, got ${destinationSize}`,
+    );
+  }
+};
+
+const plugin = async (args) => {
+  const { inputFileObj, variables, jobLog } = args;
+  const source = inputFileObj._id;
+  const configuredDestination = variables.originalLibraryFile || args.originalLibraryFile;
+  const destination = typeof configuredDestination === 'string'
+    ? configuredDestination
+    : configuredDestination && configuredDestination._id;
+
+  if (!destination || typeof destination !== 'string') {
+    throw new Error('[replaceOriginalFile] No original library path is available');
+  }
+  if (!fs.existsSync(source)) {
+    throw new Error(`[replaceOriginalFile] Processed file not found: ${source}`);
+  }
+  if (path.resolve(source) === path.resolve(destination)) {
+    jobLog('[replaceOriginalFile] Processed file is already at the original path — skipping.\n');
+    return { outputNumber: 1, outputFileObj: inputFileObj, variables };
+  }
+
+  const destinationDir = path.dirname(destination);
+  if (!fs.existsSync(destinationDir)) {
+    throw new Error(`[replaceOriginalFile] Destination directory does not exist: ${destinationDir}`);
+  }
+
+  const temporary = `${destination}.tdarr.tmp`;
+  const backup = `${destination}.partial.old`;
+  let backupCreated = false;
+  let installed = false;
+
+  try {
+    if (fs.existsSync(temporary)) fs.unlinkSync(temporary);
+    copyAndVerify(source, temporary);
+
+    if (fs.existsSync(destination)) {
+      if (fs.existsSync(backup)) fs.unlinkSync(backup);
+      fs.renameSync(destination, backup);
+      backupCreated = true;
+    }
+    fs.renameSync(temporary, destination);
+    installed = true;
+
+    if (backupCreated) {
+      try {
+        fs.unlinkSync(backup);
+      } catch (error) {
+        jobLog(`[replaceOriginalFile] WARNING: Could not remove backup ${backup}: ${error.message}\n`);
+      }
+    }
+    if ((args.inputs.deleteSource || 'true') === 'true') {
+      try {
+        fs.unlinkSync(source);
+      } catch (error) {
+        jobLog(`[replaceOriginalFile] WARNING: Could not delete processed file ${source}: ${error.message}\n`);
+      }
+    }
+
+    jobLog(`[replaceOriginalFile] Replaced original file: ${destination}\n`);
+    return {
+      outputNumber: 1,
+      outputFileObj: { ...inputFileObj, _id: destination },
+      variables,
+    };
+  } catch (error) {
+    if (fs.existsSync(temporary)) fs.unlinkSync(temporary);
+    if (backupCreated && !installed && !fs.existsSync(destination)) {
+      fs.renameSync(backup, destination);
+    }
+    throw new Error(`[replaceOriginalFile] Replacement failed: ${error.message}`);
+  }
+};
+
+module.exports.details = details;
+module.exports.plugin = plugin;
diff --git a/LocalFlowPlugins/utility/replaceOriginalFile/2.0.0/index.js b/LocalFlowPlugins/utility/replaceOriginalFile/2.0.0/index.js
new file mode 100644
index 0000000..305a75b
--- /dev/null
+++ b/LocalFlowPlugins/utility/replaceOriginalFile/2.0.0/index.js
@@ -0,0 +1,99 @@
+'use strict';
+
+const path = require('path');
+const fs = require('fs');
+const { copyWithProgress } = require('../../../../FlowHelpers/1.0.0/copyWithProgress');
+
+const details = () => ({
+  name: 'Replace Original File (Progress)',
+  description:
+    'Copies the processed file to the original library path with streamed progress, '
+    + 'size verification, an atomic rename, and rollback if replacement fails.',
+  style: { borderColor: '#FF9800' },
+  tags: 'utility,replace,progress',
+  isStartPlugin: false,
+  pType: '',
+  requiresVersion: '2.11.01',
+  sidebarPosition: 1,
+  icon: 'faExchangeAlt',
+  inputs: [
+    {
+      label: 'Delete processed work file',
+      name: 'deleteSource',
+      type: 'boolean',
+      defaultValue: 'true',
+      inputUI: { type: 'dropdown', options: ['true', 'false'] },
+      tooltip: 'Delete the processed file after it has replaced the original.',
+    },
+  ],
+  outputs: [{ number: 1, tooltip: 'Original file replaced — continue to next plugin' }],
+});
+
+const plugin = async (args) => {
+  const { inputFileObj, variables, jobLog } = args;
+  const source = inputFileObj._id;
+  const configuredDestination = variables.originalLibraryFile || args.originalLibraryFile;
+  const destination = typeof configuredDestination === 'string'
+    ? configuredDestination
+    : configuredDestination && configuredDestination._id;
+  if (!destination || typeof destination !== 'string') {
+    throw new Error('[replaceOriginalFile] No original library path is available');
+  }
+  if (!fs.existsSync(source)) throw new Error(`[replaceOriginalFile] Processed file not found: ${source}`);
+  if (path.resolve(source) === path.resolve(destination)) {
+    jobLog('[replaceOriginalFile] Processed file is already at the original path — skipping.\n');
+    return { outputNumber: 1, outputFileObj: inputFileObj, variables };
+  }
+
+  const destinationDir = path.dirname(destination);
+  if (!fs.existsSync(destinationDir)) {
+    throw new Error(`[replaceOriginalFile] Destination directory does not exist: ${destinationDir}`);
+  }
+
+  const temporary = `${destination}.tdarr.tmp`;
+  const backup = `${destination}.partial.old`;
+  let backupCreated = false;
+  let installed = false;
+  try {
+    if (fs.existsSync(temporary)) fs.unlinkSync(temporary);
+    await copyWithProgress({
+      source,
+      destination: temporary,
+      jobLog,
+      updateProgress: args.updateProgress,
+      label: 'replaceOriginalFile',
+    });
+
+    if (fs.existsSync(destination)) {
+      if (fs.existsSync(backup)) fs.unlinkSync(backup);
+      fs.renameSync(destination, backup);
+      backupCreated = true;
+    }
+    fs.renameSync(temporary, destination);
+    installed = true;
+
+    if (backupCreated) {
+      try {
+        fs.unlinkSync(backup);
+      } catch (error) {
+        jobLog(`[replaceOriginalFile] WARNING: Could not remove backup ${backup}: ${error.message}\n`);
+      }
+    }
+    if ((args.inputs.deleteSource || 'true') === 'true') {
+      try {
+        fs.unlinkSync(source);
+      } catch (error) {
+        jobLog(`[replaceOriginalFile] WARNING: Could not delete processed file ${source}: ${error.message}\n`);
+      }
+    }
+    jobLog(`[replaceOriginalFile] Replaced original file: ${destination}\n`);
+    return { outputNumber: 1, outputFileObj: { ...inputFileObj, _id: destination }, variables };
+  } catch (error) {
+    if (fs.existsSync(temporary)) fs.unlinkSync(temporary);
+    if (backupCreated && !installed && !fs.existsSync(destination)) fs.renameSync(backup, destination);
+    throw new Error(`[replaceOriginalFile] Replacement failed: ${error.message}`);
+  }
+};
+
+module.exports.details = details;
+module.exports.plugin = plugin;
diff --git a/README.md b/README.md
index 913a2e6..b4f0010 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,8 @@ curl -fsSL "${BASE}/LocalFlowPlugins/${CATEGORY}/${PLUGIN}/1.0.0/index.js" -o "$
 | `setAnimationFlag` | `utility` |
 | `extractChaptersXml` | `utility` |
 | `finalizeMedia` | `utility` |
+| `copyToWorkDir` | `utility` |
+| `replaceOriginalFile` | `utility` |
 | `audioSelectorClamping` | `audio` |
 | `backupSourceAudio` | `audio` |
 | `extractSubtitlesAndOcr` | `subtitles` |
@@ -97,7 +99,10 @@ LocalFlowPlugins/
 │   ├── mediaAnalyzerGOP/1.0.0/index.js
 │   ├── setAnimationFlag/1.0.0/index.js
 │   ├── extractChaptersXml/1.0.0/index.js
-│   └── finalizeMedia/1.0.0/index.js
+│   ├── finalizeMedia/1.0.0/index.js
+│   ├── copyToWorkDir/2.0.0/index.js
+│   ├── replaceOriginalFile/1.0.0/index.js
+│   └── replaceOriginalFile/2.0.0/index.js
 ├── audio/
 │   ├── audioSelectorClamping/1.0.0/index.js
 │   └── backupSourceAudio/1.0.0/index.js
@@ -245,7 +250,33 @@ Performs 2-pass libx265 encoding using VBV parameters from `args.variables`.
 
 **Reads from variables**: `gopKeyint`, `gopMinKeyint`, `gopSceneCut`, `vBitrate`, `vMaxRate`, `vBufSize`, `x265Tune`, `audioHasIta`, `audioItaStreamIndex`, `audioItaOpusBitrate`, `audioHasEng`, `audioEngStreamIndex`, `audioEngOpusBitrate`
 
-### 8. `finalizeMedia` — Finalize Media & Sidecars
+### 8. `copyToWorkDir` — Copy Source to Work Dir (Progress)
+
+**Category**: `utility` · **Step**: before transcode
+
+Streams the source file to the worker's local `workDir`, verifies the byte count,
+and reports throttled copy progress. It stores the original library path in
+`variables.originalLibraryFile` for `replaceOriginalFile`.
+
+### 9. `replaceOriginalFile` — Replace Original File
+
+**Category**: `utility` · **Step**: after transcode
+
+The `1.0.0` version performs the same verified, atomic replacement as the
+progress version but does not emit transfer progress callbacks or progress logs.
+It is useful when the standard Tdarr replacement behavior is desired without
+additional progress reporting.
+
+### 10. `replaceOriginalFile` — Replace Original File (Progress)
+
+**Category**: `utility` · **Step**: after transcode
+
+Streams the processed file to a temporary file beside the original, verifies its
+size, then atomically replaces the original. An existing original is moved to
+`.partial.old` during the operation and restored if replacement fails. The
+processed work file is deleted after a successful replacement.
+
+### 11. `finalizeMedia` — Finalize Media & Sidecars
 
 Run after `Move To Directory`. It normalizes subtitle language codes, adds
 `.default` to `ita.forced`, removes duplicate `_chapters` sidecars, and removes
diff --git a/docs/integration-guide.md b/docs/integration-guide.md
index 755ffac..c6a62dd 100644
--- a/docs/integration-guide.md
+++ b/docs/integration-guide.md
@@ -15,7 +15,10 @@ Questa guida descrive come assemblare i 7 plugin nel canvas Flow di Tdarr, confi
     │   ├── mediaAnalyzerGOP/1.0.0/index.js
     │   ├── setAnimationFlag/1.0.0/index.js
     │   ├── extractChaptersXml/1.0.0/index.js
-    │   └── finalizeMedia/1.0.0/index.js
+    │   ├── finalizeMedia/1.0.0/index.js
+    │   ├── copyToWorkDir/2.0.0/index.js
+    │   ├── replaceOriginalFile/1.0.0/index.js
+    │   └── replaceOriginalFile/2.0.0/index.js
     ├── audio/
     │   ├── audioSelectorClamping/1.0.0/index.js
     │   └── backupSourceAudio/1.0.0/index.js
@@ -68,8 +71,9 @@ Nella Web UI: **Settings → Nodes → [tuo worker Windows]**
 
 > Il plugin `extractChaptersXml` deriva automaticamente il path di `mkvextract.exe` dalla stessa cartella di `mkvpropedit.exe`.
 
-`copyToWorkDir` crea la copia temporanea con suffisso `_old`; il transcoder
-produce così il nome originale senza `_x265`.
+`copyToWorkDir` crea la copia temporanea con suffisso `_old` e conserva il
+percorso originale in `variables.originalLibraryFile`. La versione 2.0.0
+trasmette il progresso della copia e verifica la dimensione finale.
 
 ### 3.3 Configurazione PATH Windows
 
@@ -85,6 +89,8 @@ Aggiungi al PATH di sistema:
 ### 4.1 Ordine dei nodi
 
 ```
+[copyToWorkDir 2.0.0] (recommended for network libraries)
+                 ▼
 [mediaAnalyzerGOP]
        │
        │  (Facoltativo — solo per anime non rilevati automaticamente)
@@ -107,13 +113,14 @@ Aggiungi al PATH di sistema:
          [backupSourceAudio]
                  ▼
          [transcode2PassX265]
-                 ▼
-         [Copy/Move Folder Content]
-                 ▼
-          [Move To Directory]
-                 ▼
-           [finalizeMedia]
+               ▼
+         [replaceOriginalFile 2.0.0]
+               ▼
+         [finalizeMedia]
 ```
+`copyToWorkDir` 2.0.0 is optional but recommended when the source library is on
+a network share. Place it before the first analysis/transcode node; it records
+the library path for `replaceOriginalFile` 2.0.0.
 
 ### 4.2 Connessioni nel Canvas
 
diff --git a/install.sh b/install.sh
index 24c1028..d51efd5 100644
--- a/install.sh
+++ b/install.sh
@@ -29,6 +29,7 @@ declare -A PLUGIN_CATEGORY=(
   [extractChaptersXml]=utility
   [finalizeMedia]=utility
   [copyToWorkDir]=utility
+  [replaceOriginalFile]=utility
   [audioSelectorClamping]=audio
   [backupSourceAudio]=audio
   [extractSubtitlesAndOcr]=subtitles
@@ -64,16 +65,25 @@ download_plugin() {
     return 1
   fi
 
-  local dest="${PLUGIN_DIR}/LocalFlowPlugins/${category}/${name}/1.0.0"
-  local url="${RAW}/LocalFlowPlugins/${category}/${name}/1.0.0/index.js"
-
-  mkdir -p "$dest"
-  if curl -fsSL "$url" -o "${dest}/index.js"; then
-    echo "  ✓ ${name}  →  ${dest}/index.js"
-  else
-    echo "  ✗ Failed to download ${name} from ${url}"
-    return 1
+  local versions="1.0.0"
+  if [[ "$name" == "copyToWorkDir" ]]; then
+    versions="2.0.0"
+  elif [[ "$name" == "replaceOriginalFile" ]]; then
+    versions="1.0.0 2.0.0"
   fi
+
+  for version in $versions; do
+    local dest="${PLUGIN_DIR}/LocalFlowPlugins/${category}/${name}/${version}"
+    local url="${RAW}/LocalFlowPlugins/${category}/${name}/${version}/index.js"
+
+    mkdir -p "$dest"
+    if curl -fsSL "$url" -o "${dest}/index.js"; then
+      echo "  ✓ ${name} ${version}  →  ${dest}/index.js"
+    else
+      echo "  ✗ Failed to download ${name} ${version} from ${url}"
+      return 1
+    fi
+  done
 }
 
 # ── Run ───────────────────────────────────────────────────────────────────────
diff --git a/tests/quick-logic-test.js b/tests/quick-logic-test.js
index 7aeaa29..fde311c 100644
--- a/tests/quick-logic-test.js
+++ b/tests/quick-logic-test.js
@@ -210,6 +210,14 @@ const AUDIO_INPUTS = {
 
   const copyPluginCode = require('fs').readFileSync(path.join(ROOT, 'LocalFlowPlugins/utility/copyToWorkDir/1.0.0/index.js'), 'utf8');
   ok(copyPluginCode.includes('[copyToWorkDir] Progress:'), 'copyToWorkDir reports copy progress in the job log');
+  const copyPluginV2Code = require('fs').readFileSync(path.join(ROOT, 'LocalFlowPlugins/utility/copyToWorkDir/2.0.0/index.js'), 'utf8');
+  ok(copyPluginV2Code.includes('updateProgress: args.updateProgress'), 'copyToWorkDir v2 forwards UI progress');
+  const replacePluginCode = require('fs').readFileSync(path.join(ROOT, 'LocalFlowPlugins/utility/replaceOriginalFile/2.0.0/index.js'), 'utf8');
+  ok(replacePluginCode.includes('.partial.old'), 'replaceOriginalFile v2 uses a rollback backup');
+  ok(replacePluginCode.includes('fs.renameSync(temporary, destination)'), 'replaceOriginalFile v2 atomically installs the verified copy');
+  const replacePluginV1Code = require('fs').readFileSync(path.join(ROOT, 'LocalFlowPlugins/utility/replaceOriginalFile/1.0.0/index.js'), 'utf8');
+  ok(replacePluginV1Code.includes('copyAndVerify'), 'replaceOriginalFile v1 verifies the copied file');
+  ok(!replacePluginV1Code.includes('updateProgress'), 'replaceOriginalFile v1 has no progress callback');
 
   // ── Summary ───────────────────────────────────────────────────────────────
   console.log(`\n${'='.repeat(55)}`);