Вы можете использовать команду zip, вызванную из ruby, которая, вероятно, будет лучшим решением.С zip manpage zip manpage
-d
--delete
Remove (delete) entries from a zip archive. For example:
zip -d foo foo/tom/junk foo/harry/\* \*.o
will remove the entry foo/tom/junk, all of the files that start with foo/harry/, and all of the files that end with .o (in any path). Note that shell path‐
name expansion has been inhibited with backslashes, so that zip can see the asterisks, enabling zip to match on the contents of the zip archive instead of the
contents of the current directory. (The backslashes are not used on MSDOS-based platforms.) Can also use quotes to escape the asterisks as in
zip -d foo foo/tom/junk "foo/harry/*" "*.o"
Not escaping the asterisks on a system where the shell expands wildcards could result in the asterisks being converted to a list of files in the current
directory and that list used to delete entries from the archive.
Under MSDOS, -d is case sensitive when it matches names in the zip archive. This requires that file names be entered in upper case if they were zipped by
PKZIP on an MSDOS system. (We considered making this case insensitive on systems where paths were case insensitive, but it is possible the archive came from
a system where case does matter and the archive could include both Bar and bar as separate files in the archive.) But see the new option -ic to ignore case
in the archive.
Если вы хотите получить решение с чистым рубином, посмотрите ZipFileSystem