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> So there's a finite list of bundle file types, maybe? No, third party software can define bundles too.

• rectang 6y ago
  LOL. "Wrong!" "Wrong again!" "Still wrong!" Fine. I tracked down the relevant official documentation: https://developer.apple.com/library/archive/documentation/CoreFoundation/Conceptual/CFBundles/AboutBundles/AboutBundles.html https://developer.apple.com/library/archive/documentation/Co... > • A package is any directory that the Finder presents to the user as if it were a single file. > • A bundle is a directory with a standardized hierarchical structure that holds executable code and the resources used by that code. [...] > The Finder considers a directory to be a package if any of the following conditions are true: > • The directory has a known filename extension: .app, .bundle, .framework, .plugin, .kext, and so on. > • The directory has an extension that some other application claims represents a package type; see Document Packages. > • The directory has its package bit set.
  • codetrotter 6y ago
    Ah, you were right and it was actually packages I was thinking of after all. Thank you and sorry.
    • rectang 6y ago
      Thanks for the validation, and I learned something useful tonight! I'd discovered accidentally how to traverse those pseudo-directories, both in the terminal and the finder. Now I know what's actually going on!