The startup cache records all the information about the TiddlyWiki plugin cache.

pluginFiles

list of key: plugin title, value: cache-relative path to the plugin folder

pluginHashes

list of key: plugin title, value: sha384 hash (prefixed with sha384-)

filePlugins

pluginFiles with the key and value reversed. It should only be used for importing existing data folders which have path references to TiddlyWiki plugins (such as found in tiddlywiki.info files).

requiredPlugins

the list of plugins that the site considers essential. Every wiki is always loaded with these plugins. Server Plugins can add or remove plugins from this list. It does not include the TiddlyWiki core, as that one is even more essential and can only be disabled with a setting on the recipe.

cachePath

absolute path to the cache directory

SHA-384 Hash options

prefix

a Buffer to add to the hash before the plugin itself

suffix

a Buffer to add to the hash after the plugin itself.

The hash is used for the integrity attribute when serving plugins externally. The exact file byte contents, along with prefix and suffix, must be hashed in the correct encoding. Presumably this is always UTF-8. When a plugin is served as an external JS file, it is wrapped with prefix and suffix.

The plugin itself is a tiddler fields object encoded with JSON.stringify(tiddler.getFieldStrings()).