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

The -s option in 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, 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:

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:

# 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:

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:

./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:

./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:

./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 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 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.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}