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valid-zip-archive.R
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| # test if a file is a valid zip archive | |
| # can be used to distinguish old MS documents from current xml formats (e.g. doc from docx) | |
| valid_zip = function(filepath, zippath = "/usr/bin/zip"){ | |
| zip_status = suppressWarnings(system(paste0(zippath, ' -T "', filepath, '"'), intern = TRUE)) | |
| return(length(stringr::str_subset(zip_status, 'OK$')) > 0) | |
| } | |
| # e.g. | |
| # valid_zip("file.doc") |
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