fflate/docs/interfaces/zipattributes.md

Interface: ZipAttributes

Attributes for files added to a ZIP archive object

Hierarchy

• ZipAttributes

↳ ZipOptions

↳ AsyncZipOptions

↳ ZipInputFile

Index

Properties

• attrs
• mtime
• os

Properties

attrs

• Optional attrs: number

The file's attributes. These are traditionally somewhat complicated and platform-dependent, so using them is scarcely necessary. However, here is a representation of what this is, bit by bit:

TTTTugtrwxrwxrwx0000000000ADVSHR

TTTT = file type (rarely useful)

u = setuid, g = setgid, t = sticky

rwx = user permissions, rwx = group permissions, rwx = other permissions

0000000000 = unused

A = archive, D = directory, V = volume label, S = system file, H = hidden, R = read-only

If you want to set the Unix permissions, for instance, just bit shift by 16, e.g. 0644 << 16

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mtime

• Optional mtime: GzipOptions[\"mtime\"]

When the file was last modified. Defaults to the current time.

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os

• Optional os: number

The operating system of origin for this file. The value is defined by PKZIP's APPNOTE.txt, section 4.4.2.2. For example, 0 (the default) is MS/DOS, 3 is UNIX, 19 is macOS.