synology-thumbgen/.specstory/history/2025-10-12_21-53Z-fix-thumbnail-generation-and-script-creation.md

Fix thumbnail generation and script creation (2025-10-12 21:53Z)

User (2025-10-12 21:53Z)

@2025-09-28_20-12Z-fixing-thumbnail-generation-and-sync-issues.md I have some more thumbs to generate in C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025 let's do some things:

• disable funcitonality for webm since synology doesn't even support thumbnailing for it
• create a shell script that does the opposite of nascleanup.sh; it extracts the eadir@ to eadir_tmp so the thumbgen skips the existing frames instead of recalculating them again

---

Assistant (gpt-5)

Thought Process

Clarifying user requests

I see the user has two tasks to tackle. First, they want to disable functionality for .webm files in the psthumbgen.py script, which handles thumbnail generation. This means we should modify the code to skip processing .webm files, possibly through a config or flag.

Then, they mentioned creating a shell script that does the opposite of nascleanup.sh, transferring eadir@ to eadir_tmp so that thumbgen doesn't recalculate existing frames. Since they confirmed the need for a script, we’ll proceed with that. Planning file modifications

I need to open and read the psthumbgen.py file to find where .webm processing is managed. I'll use a method like read_file and possibly grep. I also need to create a shell script that does the opposite of nascleanup.sh, so I'll read that script to understand its functionality.

Next, I'll use multi_tool_use.parallel to simultaneously read both scripts. Since this is a multi-step task, I'll create two tasks: one for disabling .webm processing and another for adding the shell script that extracts EAs to eadir_tmp. I'll mark the first task as in progress before moving forward.

---

I’m going to scan psthumbgen.py to find where .webm handling is implemented, and read nascleanup.sh to mirror its logic for the new “extract eadir to eadir_tmp” script.

---

Tool use: read_file

Read file: c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py

---

Tool use: read_file

Read file: c:\Users\Nathan\Desktop\synology-thumbgen\nascleanup.sh

---

Thought Process

Adjusting functionality for webm

I need to disable functionality for webm files since Synology doesn't support thumbnailing for them. This means I’ll likely have to modify psthumbgen.py to skip .webm files. Currently, webm is included in valid_exts, so I'll need to adjust it to stop processing them—maybe by excluding webm from valid_exts or modifying the process_file video condition. The user wants to avoid wasting time on unsupported thumbnails, so skipping .webm entirely makes sense. Updating file handling and creating script

I just need to make minimal changes: first, I’ll remove 'webm' from valid_exts and adjust the video checks to exclude it. I should also update the Icaros helper sets so they avoid looking up '.webm'. They had heuristics referencing webm, but it’s probably fine to keep those unaffected since they’re for mapping. To be thorough, I’ll make sure to remove it from supported lists to simplify logic.

Next, I need to create a shell script that does the opposite of nascleanup.sh. This new script should extract the @eaDir to eaDir_tmp, letting thumbgen skip existing frames instead of recalculating them. It suggests copying the @eaDir directories and renaming them as eaDir_tmp alongside the originals. Clarifying directory extraction

The instructions say to "extract the eadir@ to eadir_tmp." There’s a minor typo, using "eadir@" instead of "@eaDir," but looking back at nascleanup, we see they used '@eaDir.' For our task, we want to copy/replace '@eaDir' with 'eaDir_tmp'.

I need to be cautious, though, since an existing 'eaDir_tmp' could be there. My plan is to create a corresponding 'eaDir_tmp' directory for each '@eaDir' subdirectory found. So, for each '@eaDir', I’ll set up a sibling 'eaDir_tmp' directory, keeping the structure intact. This way, we wouldn't overwrite anything already on the NAS, effectively preserving existing data. Creating extraction script

The user mentioned that we want to create a way for thumbgen to skip existing frames instead of recalculating them. The generator verifies if thumbnails already exist in eaDir_tmp and, if they do, it skips generating those sizes. In the code, both create_video_thumbnails and generate_synology_thumbnails check for pre-existence.

So, if we copy the contents from @eaDir to eaDir_tmp, our psthumbgen.py will see those files in 'eaDir_tmp' and bypass generating them. I'll need to create a new shell script for this purpose—perhaps I'll name it extract_eadir_to_tmp.sh, with an input directory path like nascleanup.sh. Creating extraction script details

First, I need to modify the extract_from_icdb_database by removing '.webm' from the get_alphabetical_position icaros_extensions set. I’ll create a patch with four separate hunks afterward.

Then, I’ll compose the new script extract_eadir_to_tmp.sh with a bash shebang. The usage will be $0 <directory>, and I'll use find to locate directories named '@eaDir'. For each found directory, I’ll set up a temporary directory and copy contents from @eaDir to eaDir_tmp using rsync if available, or fallback to cp if not. I’ll make sure to keep the output messages concise, avoiding excessive comments. Finally, I'll run read_lints on psthumbgen.py and update the necessary items.

---

I'll add todos for the two tasks, then disable .webm processing in psthumbgen.py, check for linter issues, and create the new extraction script that copies @eaDir to eaDir_tmp.

---

Tool use: todo_write

Todo List

• [-] Disable .webm processing in psthumbgen.py
• Create extract_eadir_to_tmp.sh to copy @eaDir into eaDir_tmp

---

I'll update psthumbgen.py to skip .webm files and then check for any linter errors.

---

Tool use: read_file

Read file: c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py

---

Thought Process

Evaluating webm functionality

I need to implement changes regarding webm functionality. The user mentioned that Synology doesn't support thumbnails for webm files, so I should disable processing for them. This means modifying the code to exclude .webm in the valid extensions list and in the file processing functions. If they’re not supported, generating thumbnails would just be a waste of effort. So, I’ll remove webm from valid_exts and associated lists in the code. Adjusting webm settings

I’m considering the processing of .webm in the Icaros helper sets. Although it’s included only for mapping, it’s clear that the user wants to disable functionality for webm entirely since Synology doesn’t support thumbnailing. So, I’ll modify the code to exclude .webm from valid_exts, process_file, and supported_exts to prevent any confusion or log spam if the function is mistakenly called. Even though it’s not critical, removing it will streamline things. Completing webm adjustments and scripting

I need to remove all occurrences of .webm in both find_files and process_file lists for thoroughness. I’ll also add disclaimers to comments about earlier tasks, but I'll keep it minimal. Then, I am tasked with creating a shell script that extracts '@eaDir' directories to 'eaDir_tmp' for thumbgen to skip existing frames. This script should replicate any existing '@eaDir/filename' into 'eaDir_tmp/filename'. I’m considering whether to copy those files or create symlinks instead. Clarifying file duplication process

On Synology Linux, when handling '@eaDir', I need to be careful not to lose thumbnail information. Since moving files could erase that data, making duplicates in 'eaDir_tmp' is a better approach by using copy instead of move. The copying process means retaining the original '@eaDir'.

I’ll need to copy the contents of '@eaDir/' into 'eaDir_tmp/' at the same directory level. This requires iterating through each '@eaDir' directory, creating sibling 'eaDir_tmp' folders if they don’t exist, and copying the contents accordingly. Implementing script and file edits

I want to invert the functionality of the existing nascleanup.sh to create a new script, extract_eadir_to_tmp.sh. This will find all '@eaDir' directories, create corresponding 'eaDir_tmp' folders, and copy the complete directory structure while preserving it. I’ll ensure that if thumbnails exist in 'eaDir_tmp', process_file will skip generating them again.

I also need to disable webm processing in psthumbgen.py and update valid_exts to remove '.webm'. While I need to keep comments minimal, I want to document the intentional exclusion of webm for clarity. Finally, I will apply the necessary changes and then run lints to ensure everything is correct.

---

I'm updating the code to skip .webm files, then I'll create the new extract_eadir_to_tmp.sh script that copies @eaDir into eaDir_tmp to pre-seed thumbnails.

---

Tool use: apply_patch

Apply patch for c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py

*** Begin Patch
*** Update File: c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py
@@
 def find_files(dir):
     # Only process formats that Synology doesn't handle well
     # Exclude common images (jpg, png, gif, etc.) since NAS handles them fine
-    valid_exts = ('mp4', 'webm', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'm4v', 'ts',
+    valid_exts = ('mp4', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'm4v', 'ts',
                   'psd', 'blend')
@@
-    if file_ext in ['.mp4', '.webm', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.m4v', '.ts']:
+    if file_ext in ['.mp4', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.m4v', '.ts']:
         create_video_thumbnails(file_path, thumb_dir)
*** End Patch

---

I disabled .webm handling in psthumbgen.py. I'll mark that todo complete, then create a new shell script to copy @eaDir to eaDir_tmp recursively so thumbgen skips regenerating frames.

---

Tool use: todo_write

Todo List

• Disable .webm processing in psthumbgen.py
• [-] Create extract_eadir_to_tmp.sh to copy @eaDir into eaDir_tmp

---

Thought Process

Applying code changes

I’m planning to use apply_patch to add a new file while keeping in mind that comments should be minimal unless critical. A small header is okay, and I need to maintain indentation since it's a new file. The previous task disabled .webm, and I think skipping it in find_files and process_file should be enough. I'll run read_lints on psthumbgen.py after making changes and apply_patch to create the script. I’ll include status updates before tool calls throughout this process. Implementing user rules

I have two main actions: first, I’ll run read_lints, then create the file. While the order isn’t critical, I could run read_lints in parallel with nothing else, but starting with it seems more straightforward. The user's user_rules state that a script should only be generated if specified, and they did specify creating a shell script. I want to ensure the code remains concise and avoid heavy formatting. I’ll make changes using tools without directly outputting code, but I will provide a summary in my final message. Following instructions on code changes

Given that the environment uses code edit tools for file generation, the user will see it in the editor. The instructions specify that I should never output code to the user unless requested, and the user only asked to create a script, not to see the content. So I won’t print the script code. Now, I’ll focus on running read_lints and ensure everything is set up correctly before proceeding further!

---

I'll run a quick linter check on psthumbgen.py, then create the new extract_eadir_to_tmp.sh script that mirrors @eaDir into eaDir_tmp with existing thumbnails so psthumbgen.py skips regenerating them.

---

Tool use: read_lints

Read lints for 1 file

Lint paths:

• c:\Users\Nathan\Desktop\synology-thumbgen\psthumbgen.py

Lint results

Lint errors for psthumbgen.py

Message	Range	Severity
Import "ImageDraw" is not accessed	12:24-12:33	DIAGNOSTIC_SEVERITY_HINT
Import "ImageFont" is not accessed	12:35-12:44	DIAGNOSTIC_SEVERITY_HINT
Variable "dirs" is not accessed	84:15-84:19	DIAGNOSTIC_SEVERITY_HINT
Variable "all_streams" is not accessed	578:9-578:20	DIAGNOSTIC_SEVERITY_HINT
Import "sqlite3" is not accessed	676:16-676:23	DIAGNOSTIC_SEVERITY_HINT
Import "hashlib" is not accessed	677:16-677:23	DIAGNOSTIC_SEVERITY_HINT
Variable "drive" is not accessed	895:13-895:18	DIAGNOSTIC_SEVERITY_HINT
Variable "dnames" is not accessed	921:24-921:30	DIAGNOSTIC_SEVERITY_HINT
Import "struct" is not accessed	981:16-981:22	DIAGNOSTIC_SEVERITY_HINT
Import "glob" is not accessed	982:16-982:20	DIAGNOSTIC_SEVERITY_HINT
Import "re" is not accessed	983:16-983:18	DIAGNOSTIC_SEVERITY_HINT
Variable "dirs" is not accessed	1067:35-1067:39	DIAGNOSTIC_SEVERITY_HINT
"file_path" is not accessed	1212:44-1212:53	DIAGNOSTIC_SEVERITY_HINT

---

Thought Process

Creating shell script for Synology NAS

I need to develop a shell script that essentially reverses what nascleanup.sh does. This new script should copy contents from @eaDir to eaDir_tmp to allow thumbgen to skip recalculating existing frames. I see that we've already disabled webm in our Python code, which aligns with the initial requirements since Synology doesn't support thumbnailing for webm. The script should be in Bash and focus on ensuring that standard Synology thumbnail files are preserved in the eaDir_tmp path. Examining thumbnail directory structure

I need to look into how psthumbgen expects the thumb_dir to be structured. In process_file, thumb_dir is set to combine the base directory and filename under eaDir_tmp. So, for each file, the thumbnails should be in a specific path. We have to replicate the structure from @eaDir to eaDir_tmp. For each @eaDir directory, I’ll create a corresponding eaDir_tmp directory and copy over the necessary files, skipping any that already exist. The ultimate aim is to facilitate thumbgen in skipping existing thumbnail frames. I also need to ensure that permissions are set correctly on eaDir_tmp and create a script named extract_eadir_to_tmp.sh to accept the target directory path. Designing the extraction script

The script I'm conceptualizing shouldn’t stop services since it only involves read-only copying for extraction purposes. Although the NAS might restrict access, we can run it as a user. I’m outlining the script to be used like this: ./extract_eadir_to_tmp.sh /volume1/... or possibly a Windows path.

I need to validate the argument first, then look for any directories that contain @eaDir. For each of these directories, I’ll calculate the source and destination paths, ensuring the destination directory exists. I plan to copy relevant thumbnail files, specifically anything that matches SYNOPHOTO_THUMB_* and SYNOVIDEO_VIDEO_SCREENSHOT.jpg. To simplify, I think I’ll use the cp -n command to copy these files, mostly focusing on JPGs, since that's what Synology uses frequently. Refining the script with rsync

I realize I need to add the -n option to prevent overwriting any existing files during the copy process. I also have to be cautious about path names that might contain reserved characters. Using find with -print0 and reading with while read -d '' could simplify this.

Instead of basic copying, I think using rsync would be effective because it can maintain the directory structure while copying recursively. I’ll utilize options like --ignore-existing to skip files that are already there, and include the specific thumbnail patterns I need. However, I should note that mapping the source from @eaDir to the destination in eaDir_tmp might be tricky with rsync, and using --filter for transformations doesn’t seem straightforward. I’ll have to figure out a cleaner way to handle that. Looping through directories for extraction

I'm designing a script that will loop through the directories in @eaDir. The script starts by finding each @eaDir directory in the target location and then iterates through its entries, creating corresponding eaDir_tmp directories. For each known thumbnail file, I’ll check if it exists in the source directory and only copy it if the destination doesn't already have it.

After copying, I'll adjust permissions to make sure they are writable, as psthumbgen needs the destination directory to exist and be modifiable. I want to keep things simple by including a dry-run flag and respecting the user's request to generate this shell script. Once everything is structured properly, I'll apply the patch to add the new file and update the task list to complete.

---

I'll create a new extract_eadir_to_tmp.sh script that copies thumbnails from each @eaDir/<filename> into eaDir_tmp/<filename> without overwriting, so your Python thumbgen will skip regenerating existing images.

---

Tool use: apply_patch

Apply patch for c:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh

*** Begin Patch
*** Add File: c:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh
+#!/bin/bash
+
+# Extract existing Synology thumbnails from @eaDir into eaDir_tmp so thumbgen skips regeneration
+# Usage: ./extract_eadir_to_tmp.sh /volume1/YourShare/path
+
+set -euo pipefail
+
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <directory_path>"
+    exit 1
+fi
+
+TARGET_DIR="$1"
+
+if [ ! -d "$TARGET_DIR" ]; then
+    echo "Error: '$TARGET_DIR' is not a directory"
+    exit 1
+fi
+
+echo "=== Extracting @eaDir thumbnails to eaDir_tmp ==="
+echo "Target: $TARGET_DIR"
+
+# For every @eaDir/<name> directory, copy known thumbnail files to eaDir_tmp/<name>
+find "$TARGET_DIR" -type d -name '@eaDir' -print0 | while IFS= read -r -d '' EADIR; do
+    PARENT_DIR="$(dirname "$EADIR")"
+
+    # Each immediate subdir under @eaDir corresponds to a source filename
+    find "$EADIR" -mindepth 1 -maxdepth 1 -type d -print0 | while IFS= read -r -d '' ENTRY; do
+        BASENAME="$(basename "$ENTRY")"
+        DEST_DIR="$PARENT_DIR/eaDir_tmp/$BASENAME"
+
+        mkdir -p "$DEST_DIR"
+
+        # Copy without overwriting existing files in eaDir_tmp
+        for F in \
+            SYNOVIDEO_VIDEO_SCREENSHOT.jpg \
+            SYNOPHOTO_THUMB_XL.jpg \
+            SYNOPHOTO_THUMB_B.jpg \
+            SYNOPHOTO_THUMB_M.jpg \
+            SYNOPHOTO_THUMB_PREVIEW.jpg \
+            SYNOPHOTO_THUMB_S.jpg; do
+            if [ -f "$ENTRY/$F" ] && [ ! -f "$DEST_DIR/$F" ]; then
+                cp "$ENTRY/$F" "$DEST_DIR/$F"
+            fi
+        done
+    done
+done
+
+echo "=== Done. Existing thumbnails copied into eaDir_tmp where available. ==="
+
*** End Patch

---

Tool use: todo_write

Todo List

• Disable .webm processing in psthumbgen.py
• Create extract_eadir_to_tmp.sh to copy @eaDir into eaDir_tmp

---

• I disabled .webm from processing in psthumbgen.py by removing it from valid_exts and from the video extensions check.
• I added extract_eadir_to_tmp.sh to mirror existing @eaDir thumbnails into eaDir_tmp without overwriting so psthumbgen.py skips regenerating.

Run:

# on the NAS
chmod +x extract_eadir_to_tmp.sh
./extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"

# on Windows to generate
pwsh -NoProfile -File .\psthumbgen.py --directory "C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025"

---

User (2025-10-12 21:53Z)

how do I get it on nas

---

Assistant (gpt-5)

---

• From your Windows PowerShell, copy the script to Hydra, make it executable, and run it:

scp "C:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh" Hydra:~/extract_eadir_to_tmp.sh
ssh Hydra 'chmod +x ~/extract_eadir_to_tmp.sh'
ssh Hydra '~/extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"' 

• If scp isn’t available, you can also drop the file into your NAS home share via Explorer (e.g., \Hydra\home), then SSH and run:

chmod +x ~/extract_eadir_to_tmp.sh
~/extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"

• To generate afterward on Windows:

pwsh -NoProfile -File .\psthumbgen.py --directory "C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025"

• Done:
  • .webm disabled in psthumbgen.py
  • extract_eadir_to_tmp.sh created and ready to use

---

User (2025-10-12 21:53Z)

?

---

Assistant (gpt-5)

Thought Process

Providing file transfer instructions

I need to help the user with copying a file to their NAS using SCP, which seems to be failing. I wonder if SCP isn't enabled because the Synology's default SFTP is turned off. The error message "subsystem request failed on channel 0" suggests an issue with the SFTP subsystem. I'll instruct the user to enable SFTP in Control Panel under File Services. Also, it might help to check if SCP is set correctly over SSH, especially considering the version being used. Suggesting alternative solutions

I’m exploring alternatives for the user’s file transfer issue to their NAS. One option is to use ssh with heredoc or tee from PowerShell to create the script directly on the NAS. I also consider using rsync over SSH if it's installed, or copying via SMB share followed by an SSH command to change permissions. I'll provide clear commands to enable SFTP if it’s disabled and show how to transfer the script correctly with PowerShell. Presenting file transfer options

I’m looking at various options for the user to transfer their script to the NAS. Option A is to use SMB sharing with a PowerShell copy command and then SSH to change permissions on the file. Option B involves piping the script content directly via SSH. Finally, Option C suggests enabling SFTP and using SCP, but given the user’s current issue, providing the SMB or SSH piping methods seems like a quicker fix. I’ll give clear commands with minimal verbosity for each option. Drafting concise instructions

I need to explain to the user why the SCP command failed, which is due to the SFTP subsystem being disabled. Since earlier guidelines suggested keeping things short and focused, I'll provide three options for transferring files to the NAS. I think I should use code blocks for the commands to make it clearer. Even though there was a mention of summaries in the specs, I can skip that here as we're focusing directly on providing straightforward solutions for the user's query. Providing transfer command options

Here are the options for transferring your script to the NAS:

Option 1: SMB
In PowerShell, use:

Copy-Item "C:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh" "\\Hydra\home\extract_eadir_to_tmp.sh"

Then run:

ssh Hydra 'chmod +x /extract_eadir_to_tmp.sh && /extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"'

Option 2: Pipe
Use:

Get-Content -Raw "C:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh" | ssh Hydra 'cat > /extract_eadir_to_tmp.sh'

Then run:

ssh Hydra 'chmod +x /extract_eadir_to_tmp.sh && /extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"'

Option 3: Re-enable SCP
Go to DSM: Control Panel → File Services → FTP → Enable SFTP service, then rerun SCP. If Hydra isn’t in known_hosts, connect first to accept the host key. If admin restrictions are in place, ensure the home service is enabled for access to \\Hydra\home.

---

Likely SFTP is disabled on your NAS (scp now uses SFTP), so use one of these:

• SMB share (easiest)

Copy-Item "C:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh" "\\Hydra\home\extract_eadir_to_tmp.sh"
ssh Hydra 'chmod +x ~/extract_eadir_to_tmp.sh && ~/extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"'

• Pipe file over SSH (no SFTP needed)

Get-Content -Raw "C:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh" | ssh Hydra 'cat > ~/extract_eadir_to_tmp.sh'
ssh Hydra 'chmod +x ~/extract_eadir_to_tmp.sh && ~/extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"'

• Or enable SFTP in DSM: Control Panel → File Services → FTP → Enable SFTP service, then:

scp "C:\Users\Nathan\Desktop\synology-thumbgen\extract_eadir_to_tmp.sh" Hydra:~/extract_eadir_to_tmp.sh
ssh Hydra 'chmod +x ~/extract_eadir_to_tmp.sh && ~/extract_eadir_to_tmp.sh "/volume1/Hydra/YouTube/Streams/MixerTwitch/2025"'

---

User (2025-10-12 21:53Z)

can I use autothumbs now?

---

Assistant (gpt-5)

Script ran successfully; the $'\r': command not found warning is from Windows line endings and doesn’t affect execution.

Run thumbnail generation:

python psthumbgen.py --directory "C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025"

Or use your batch file:

.\autoThumbs.bat "C:\Users\Nathan\SynologyDrive\YouTube\Streams\MixerTwitch\2025"

The script copied existing thumbnails from @eaDir to eaDir_tmp, so psthumbgen.py will skip files that already have thumbnails and only process new ones. .webm files are skipped.

---

User (2025-10-12 21:53Z)

looks like it's working great. can we add the new extraction shell to autothumbs.bat?

---

Assistant (gpt-5)

Thought Process

Modifying batch script

I need to adjust autoThumbs.bat to run the extraction shell script on NAS before the Windows psthumbgen runs. To do this, I'll use tools to edit the file. First, I want to read the content of autoThumbs.bat to understand how it currently works and what its arguments are. Then I’ll create a to-do list, which includes editing the batch script to invoke SSH and run extract_eadir_to_tmp.sh with the target directory coming from the provided argument.

---

I'll read autoThumbs.bat to see how it's currently structured, then update it to SSH into Hydra and run extract_eadir_to_tmp.sh before launching psthumbgen.py.

---

Tool use: read_file

Read file: c:\Users\Nathan\Desktop\synology-thumbgen\autoThumbs.bat

---

Thought Process

Modifying autoThumbs.bat

I need to modify the autoThumbs.bat file to integrate the extraction shell (extract_eadir_to_tmp.sh). Currently, it has options 1, 2, 3, and 4, where options 2 and 3 offer manual SSH commands for cleanup. The new requirement is to run the extraction script on the NAS before generating thumbnails. I'll need to ensure options THUMBS_ONLY and BOTH call ssh Hydra for extraction. I also wonder if I should add a new option or integrate it into options 1 and 3. Modifying extraction options

I’m thinking about how to modify the options for BOTH and THUMBS_ONLY in the script to include an optional extraction step. However, THUMBS_ONLY suggests no SSH usage, even though the user asked to automatically run the extraction shell on NAS. I could add a new option 5 specifically for extracting to eaDir_tmp or adjust options 1 and 3 to run the extraction first via ssh Hydra. I also need to ensure that WINPATH conversion is added to THUMBS_ONLY, computing the NASPATH for the extraction command. I’m a bit unsure about the SSH user format—should it be 'Hydra' or 'nathan@hydra'? Clarifying SSH username

In the Windows terminal, using 'ssh Hydra' indicates I'm logging in with the username 'Nathan'—with a capital "N." This is important because the variable defined as NASUSER is 'nathan'—in lowercase. When connecting via 'ssh Hydra,' it would log me in as 'Nathan,' considering Windows OpenSSH defaults to the current Windows username. Since the extract script is in the home directory of 'Nathan,’ using 'ssh Hydra …' seems fine. However, since NASUSER is defined, I’m considering if using 'ssh %NASUSER%@hydra' might be safer. Addressing case sensitivity in SSH

I need to consider that Linux user accounts are case-sensitive, which means 'nathan' and 'Nathan' are different. However, it seems Synology may treat them as case-insensitive. Since using 'ssh Hydra' works for logging in as 'Nathan,' I think it’s best to stick with that to remain consistent. Although the autothumbs script echoes 'ssh nathan@hydra,' I’ll keep 'ssh Hydra.'

In the THUMBS_ONLY option, I’ll compute the NASPATH after reading WINPATH, then run the extraction script. It’s possible the script has CRLF, but it should still function; I’ll keep a check for that. Implementing extraction logic

I need to add logic for running the extraction script first, then generate thumbnails. If the script isn’t found, I should notify the user to upload it. So, I’ll create a command that echoes the extraction process and checks if the script exists using SSH.

For the THUMBS_ONLY and BOTH options, I'll compute the NASPATH initially, run the extraction, then the Python process. I also want to ensure manual cleanup steps remain intact, adjusting Option 3 to automatically run the extraction first. I'll make these edits in the autoThumbs.bat file while preserving the existing formatting. Let's implement that with care. Preparing for patch application

I'm preparing to insert the necessary code after line 30, converting the Windows path to the NAS path and running the extraction on NAS to seed eaDir_tmp. Then, in the BOTH option, I’ll change the order to compute the NASPATH first before SSH extraction, followed by the Python step. I’ll ensure to provide a status update before calling apply_patch since that’s part of the requirements. After this, I might summarize the changes and check if any action remains on our todo list. Let's proceed with the patch.

---

I'll update autoThumbs.bat to run the NAS extraction script before generating thumbnails for options 1 and 3 by computing the NAS path and invoking it over SSH. Then I'll summarize how to use it.

---

Tool use: apply_patch

Apply patch for c:\Users\Nathan\Desktop\synology-thumbgen\autoThumbs.bat

*** Begin Patch
*** Update File: c:\Users\Nathan\Desktop\synology-thumbgen\autoThumbs.bat
@@
 :THUMBS_ONLY
 REM Prompt for Windows path
 set /p WINPATH=Enter the full Windows path to your NAS directory (e.g., R:\YouTube\Streams\MixerTwitch): 
 if "%WINPATH%"=="" (
     echo No path provided. Exiting.
     exit /b
 )
 
+REM Convert Windows path to NAS path and pre-seed eaDir_tmp from @eaDir on NAS
+set "RELPATH=%WINPATH:~3%"
+set "RELPATH=%RELPATH:\=/%"
+set "NASPATH=/volume1/Hydra/%RELPATH%"
+
+echo Seeding existing thumbnails on NAS (extract_eadir_to_tmp.sh)...
+ssh Hydra "bash -lc '~/extract_eadir_to_tmp.sh \"%NASPATH%\" || true'"
+
 REM Run psthumbgen.py
 python psthumbgen.py --directory "%WINPATH%"
 goto END
@@
 :BOTH
 REM Prompt for Windows path
 set /p WINPATH=Enter the full Windows path to your NAS directory (e.g., R:\YouTube\Streams\MixerTwitch): 
 if "%WINPATH%"=="" (
     echo No path provided. Exiting.
     exit /b
 )
 
-REM Run psthumbgen.py
-python psthumbgen.py --directory "%WINPATH%"
-
 REM Convert Windows path to NAS path
 set "RELPATH=%WINPATH:~3%"
 set "RELPATH=%RELPATH:\=/%"
 set "NASPATH=/volume1/Hydra/%RELPATH%"
 
 echo DEBUG: WINPATH = %WINPATH%
 echo DEBUG: RELPATH = %RELPATH%
 echo DEBUG: NASPATH = %NASPATH%
 echo.
 
+REM Pre-seed eaDir_tmp from @eaDir on NAS before generation
+echo Seeding existing thumbnails on NAS (extract_eadir_to_tmp.sh)...
+ssh Hydra "bash -lc '~/extract_eadir_to_tmp.sh \"%NASPATH%\" || true'"
+
+REM Run psthumbgen.py
+python psthumbgen.py --directory "%WINPATH%"
+
 REM SSH cleanup commands (run separately)
 echo Running SSH cleanup commands...
 echo.
 echo Please run these commands manually on your NAS:
 echo.
*** End Patch

---

• Added NAS pre-seed step to autoThumbs.bat:
  • In options 1 and 3, it now converts the Windows path to a NAS path and runs ~/extract_eadir_to_tmp.sh "<NASPATH>" over SSH before calling psthumbgen.py.

Use:

• Option 1 or 3, enter your Windows path (e.g., R:\YouTube\Streams\MixerTwitch\2025). The script will pre-copy existing @eaDir thumbs into eaDir_tmp on Hydra, then generate only missing ones locally.

---

User (2025-10-12 21:53Z)

any way to do this automatically?

---

Assistant (gpt-5)

Thought Process

Evaluating SSH options

I see that option 2 prints manual commands, which means they want to run the batch automatically over SSH. I need to be careful here and consider running the extraction script instead. They might want both SSH cleanup and commands for removing @eaDir and moving eaDir_tmp. Earlier, we modified options 1 and 3 for extraction, so should we automate option 2 to run nascleanup.sh? But do we even have nascleanup.sh available on NAS, or do we need to copy it over? Revising SSH commands

I’m thinking of simplifying the batch process by using SSH to run inline find commands. However, I need to be careful with quoting in Windows. I've already computed NASPATH in option 2, so I can change option 2 to SSH with commands for finding and removing '@eaDir' and renaming 'eaDir_tmp' using bash. But quoting in Windows can be tricky. Since the user hasn't requested a new cleanup script, sticking with the existing extract_eadir_to_tmp.sh could be the best route for now. Implementing cleanup automation

For cleanup automation, I think inline commands would work better. After calculating NASPATH, I’d run SSH commands instead of just echoing them. I need to set it up to remove '@eaDir' and rename 'eaDir_tmp' on remote NAS. Quoting gets tricky in Windows, so I should simplify things and call nascleanup.sh if it’s present on NAS. However, it’s not copied there yet, so I can only call extract_eadir_to_tmp.sh for now. I might want to confirm before any destructive actions, but the user wants automation. Simplifying SSH implementation

I want to keep things minimal for the SSH implementation. First, I’ll compute NASPATH, which is already done. Next, I’ll run commands over SSH to remove existing '@eaDir' and move 'eaDir_tmp' to '@eaDir' while setting permissions if needed. We’ll stick to the earlier manual commands; no need to include line endings.

As for option 3, which is "Both," it still prints manual commands. However, I could consider updating this to run cleanup automatically after generating thumbnails, especially since I've integrated new extraction for options 1 and 3 as requested.

---

I'll update autoThumbs.bat to automatically run a cleanup step over SSH by invoking ~/nascleanup.sh on the NAS for options 2 and 3. If the script isn't present on the NAS, it will prompt you to upload it.

---

The model made no changes to the file.

---

Thought Process

Updating automation script

I need to update autoThumbs.bat for automating cleanup. Previous read_file shows manual echo instructions in both SSH_ONLY and BOTH sections, but our earlier patch already changed parts for options 1 and 3 to use extract_eadir_to_tmp. It seems the user selected option 2 and received manual echo instructions. So, I need to edit both SSH_ONLY and BOTH to execute automatic SSH commands instead of echoing. I should read the current autoThumbs.bat file again due to this patch mismatch.

---

I'll reload the current autoThumbs.bat to modify the SSH steps to run automatically instead of printing instructions, then apply targeted edits.

---

Tool use: read_file

Read file: c:\Users\Nathan\Desktop\synology-thumbgen\autoThumbs.bat

---

Thought Process

Updating cleanup automation

I need to update autoThumbs.bat to automate cleanup. The user asked if we can do this automatically, particularly in the SSH cleanup section or for both options. We previously tried to patch the file, but there was a context mismatch with the strings used.

Currently, the SSH_ONLY section is still showing manual commands, as does the BOTH section. I’ll modify these to invoke nascleanup.sh, which already exists in the repo and is designed for NAS cleanup tasks. Considering nascleanup.sh location

I noticed that nascleanup.sh is currently in the Windows workspace path, not on the NAS. For automation, I need to figure out whether it should already be on the NAS or if I need to copy it over using the SSH method we used before. The user specified that I shouldn't generate a new script unless requested, but I'm not creating one, just invoking the existing one. If the script isn't found, I can add logic to automatically upload it while keeping it simple. I’ll use a pipe method to do this effectively. Updating autothumbs.bat for cleanup

The user previously asked me to add the new extraction shell to autothumbs.bat, which we did. Now, they want to automate the cleanup process. We need to modify both the SSH_ONLY and BOTH sections to run the nascleanup.sh script directly on the NAS instead of printing manual commands. I'll also ensure that seeding is included as we already do in THUMBS_ONLY and BOTH. If the script is missing, I can add logic to check for it and upload it automatically with a fallback message if it's not found. Implementing automatic cleanup

The user wants to automate the process, so I'll update autoThumbs.bat to run nascleanup.sh directly. I need to apply the patch carefully with the right context, updating lines 62-72 and 99-109 to include the SSH command. I also want to maintain proper Windows batch quoting, as we used it successfully with the extraction script before. I’ll adapt that format to check if nascleanup.sh exists and run it; otherwise, I’ll echo a message that it's not found on the NAS. Patching nested quotes and cleanup

I need to make sure the quoting is correct, especially since we're dealing with double quotes inside double quotes in the batch file. In Windows batch scripting, the double-quoted string ends at the next quote, so I’ll need to use \" to escape those. I’ll patch the necessary sections by applying the proper updates. Additionally, I should include a status update for smooth tool usage. Since this is a code change, I don’t need to run lint checks on the .bat files, so I’ll implement the patch.

---

I'll update autoThumbs.bat so options 2 and 3 automatically run nascleanup.sh on the NAS instead of printing manual commands, matching how we already invoke the extraction script. Then I'll confirm the change.

---

Tool use: apply_patch

Apply patch for c:\Users\Nathan\Desktop\synology-thumbgen\autoThumbs.bat

*** Begin Patch
*** Update File: c:\Users\Nathan\Desktop\synology-thumbgen\autoThumbs.bat
@@
 echo DEBUG: NASPATH = %NASPATH%
 echo.
-
-REM SSH cleanup commands (run separately)
-echo Running SSH cleanup commands...
-echo.
-echo Please run these commands manually on your NAS:
-echo.
-echo ssh nathan@hydra
-echo find "%NASPATH%" -type d -name '@eaDir' -exec rm -rf '{}' \;
-echo find "%NASPATH%" -type d -name 'eaDir_tmp' -exec bash -c 'mv "$0" "${0%%/*}/@eaDir"' {} \;
-echo.
-echo Press any key when done...
-goto END
+REM SSH cleanup - run nascleanup.sh on NAS if available
+echo Running SSH cleanup on NAS...
+ssh Hydra "bash -lc 'if [ -x ~/nascleanup.sh ]; then ~/nascleanup.sh \"%NASPATH%\"; else echo \"nascleanup.sh not found on NAS at ~/nascleanup.sh. Upload it or run cleanup manually.\"; fi'"
+goto END
@@
 echo DEBUG: NASPATH = %NASPATH%
 echo.
@@
-REM SSH cleanup commands (run separately)
-echo Running SSH cleanup commands...
-echo.
-echo Please run these commands manually on your NAS:
-echo.
-echo ssh nathan@hydra
-echo find "%NASPATH%" -type d -name '@eaDir' -exec rm -rf '{}' \;
-echo find "%NASPATH%" -type d -name 'eaDir_tmp' -exec bash -c 'mv "$0" "${0%%/*}/@eaDir"' {} \;
-echo.
-echo Press any key when done...
-goto END
+REM SSH cleanup - run nascleanup.sh on NAS if available
+echo Running SSH cleanup on NAS...
+ssh Hydra "bash -lc 'if [ -x ~/nascleanup.sh ]; then ~/nascleanup.sh \"%NASPATH%\"; else echo \"nascleanup.sh not found on NAS at ~/nascleanup.sh. Upload it or run cleanup manually.\"; fi'"
+goto END
*** End Patch

---

• Updated autoThumbs.bat so:
  • Option 1: still seeds with extract_eadir_to_tmp.sh then runs psthumbgen.py.
  • Option 2: now automatically runs ~/nascleanup.sh "<NASPATH>" over SSH.
  • Option 3: seeds with extract_eadir_to_tmp.sh, runs psthumbgen.py, then automatically runs ~/nascleanup.sh "<NASPATH>".

If ~/nascleanup.sh isn’t on Hydra, you’ll see a message to upload it; copy your local nascleanup.sh to ~/nascleanup.sh (via SMB or the earlier SSH pipe method) and re-run.

---