# How to Use the `-s` Option for Custom Output Plugin Suffix in Dify Plugin Repackaging

> Learn how to use the -s option for custom output plugin suffix in Dify plugin repackaging. Easily append your own suffix to output filenames, replacing the default offline option. Boost your workflow today.

- Repository: [Junjie.M/dify-plugin-repackaging](https://github.com/junjiem/dify-plugin-repackaging)
- Tags: how-to-guide
- Published: 2026-03-05

---

**The `-s` option in [`plugin_repackaging.sh`](https://github.com/junjiem/dify-plugin-repackaging/blob/main/plugin_repackaging.sh) allows you to specify a custom suffix that gets appended to the output filename, replacing the default `offline` suffix.**

The `junjiem/dify-plugin-repackaging` tool enables developers to create offline-ready Dify plugin packages by bundling all dependencies. When generating these `.difypkg` files, the `-s` option provides precise control over the output naming convention, which is essential for build pipelines and multi-platform distribution.

## Understanding the `-s` Option

The `-s` flag defines the **custom output plugin suffix** that appears at the end of the generated filename, just before the `.difypkg` extension. This allows you to create descriptive, versioned, or platform-specific package names without renaming files manually after generation.

If you omit the `-s` option, the script defaults to using `offline` as the suffix. This means a plugin named `antv` version `0.1.7` would generate `antv-0.1.7-offline.difypkg` by default.

## How the `-s` Option Works in the Source Code

### Argument Parsing with getopts

In [`plugin_repackaging.sh`](https://github.com/junjiem/dify-plugin-repackaging/blob/main/plugin_repackaging.sh), the script processes command-line arguments using `getopts "p:s:"` at lines 68-73. When you provide `-s`, the value is immediately stored in the `PACKAGE_SUFFIX` variable:

```bash
while getopts "p:s:" opt; do
  case $opt in
    p) PIP_PLATFORM="$OPTARG" ;;
    s) PACKAGE_SUFFIX="$OPTARG" ;;
  esac
done

```

### Default Fallback Logic

Near the top of the script at lines 25-27, `PACKAGE_SUFFIX` is initialized with a default value of `offline`:

```bash

# Default suffix

PACKAGE_SUFFIX="offline"

```

This ensures that even when `-s` is not specified, the script has a valid suffix to use for filename construction.

### Filename Construction in the Repackage Function

Inside the **repackage** function at lines 40-41, the script constructs the final output path by combining the package name with your custom suffix:

```bash
output_file="${CURR_DIR}/${PACKAGE_NAME}-${PACKAGE_SUFFIX}.difypkg"

```

This template ensures that whatever string you pass to `-s` becomes the final segment of the filename before the extension.

## Practical Examples

### Basic Usage with Custom Suffix

To generate a plugin package with a specific platform identifier:

```bash
./plugin_repackaging.sh -s myplugin-linux-amd64 market junjiem antv 0.1.7

```

This command downloads the `antv` plugin version `0.1.7` from the Dify Marketplace and creates `antv-0.1.7-myplugin-linux-amd64.difypkg`.

### Combining with Platform Specification

When you need to force specific platform wheels while also customizing the output name:

```bash
./plugin_repackaging.sh -p manylinux2014_x86_64 -s linux-amd64 market antv visualization 0.1.7

```

The `-p` flag ensures pip downloads wheels compatible with `manylinux2014_x86_64`, while `-s linux-amd64` produces `visualization-0.1.7-linux-amd64.difypkg`.

### Local Package Repackaging

For locally stored `.difypkg` files that need dependency bundling with a custom identifier:

```bash
./plugin_repackaging.sh -s custom-suffix local ./db_query.difypkg

```

This processes the local `db_query.difypkg` and outputs `db_query-custom-suffix.difypkg` with all dependencies included.

## When to Use a Custom Suffix

- **Distinguish builds** – When generating multiple packages from the same source (e.g., one for Linux-amd64, another for Linux-arm64), a custom suffix makes each file identifiable without inspecting contents.
- **Integrate with CI/CD** – CI pipelines often require predictable naming schemes that include version tags, build numbers, or target platforms; `-s` lets you embed these directly into the filename.
- **Avoid overwriting** – When re-running the script on the same source, a unique suffix prevents the new package from overwriting a previous build, preserving historical artifacts.

## Summary

- The `-s` option in [`plugin_repackaging.sh`](https://github.com/junjiem/dify-plugin-repackaging/blob/main/plugin_repackaging.sh) sets a **custom output plugin suffix** that replaces the default `offline` string in generated filenames.
- The script stores the `-s` value in `PACKAGE_SUFFIX` (lines 68-73) and defaults to `offline` if omitted (lines 25-27).
- Output filenames follow the pattern `${PACKAGE_NAME}-${PACKAGE_SUFFIX}.difypkg` as constructed in the repackage function (lines 40-41).
- Use `-s` to create platform-specific builds, integrate with automated pipelines, or prevent file overwrites during iterative development.

## Frequently Asked Questions

### What is the default suffix if I don't use `-s`?

If you omit the `-s` option, the script automatically uses `offline` as the suffix. This is defined in [`plugin_repackaging.sh`](https://github.com/junjiem/dify-plugin-repackaging/blob/main/plugin_repackaging.sh) at lines 25-27 where `PACKAGE_SUFFIX` is initialized to `"offline"`. The resulting filename will look like `plugin-name-0.1.0-offline.difypkg`.

### Can I use special characters in the custom suffix?

Yes, you can use hyphens, underscores, and alphanumeric characters commonly found in filenames. However, avoid characters that are illegal in filenames on your target filesystem (such as slashes, colons, or spaces). The script passes the `-s` value directly to the shell's string concatenation without additional sanitization, so standard filename-safe strings work best.

### How does the suffix interact with the plugin name and version?

The final filename follows the strict template `${PACKAGE_NAME}-${PACKAGE_SUFFIX}.difypkg` as implemented in the repackage function at lines 40-41. The `PACKAGE_NAME` variable already contains the plugin name and version (e.g., `antv-0.1.7`), so your custom suffix appends after a second hyphen. For example, using `-s linux-amd64` with the antv plugin produces `antv-0.1.7-linux-amd64.difypkg`.

### Is the `-s` option compatible with both market and local sources?

Yes, the `-s` option works regardless of whether you are repackaging a plugin from the Dify Marketplace or from a local `.difypkg` file. The suffix logic executes in the repackage function, which is called after the script determines the package source. Whether you use `market junjiem antv 0.1.7` or `local ./myplugin.difypkg`, the `-s` flag will customize the output filename accordingly.