History

Virgil Dupras 40f56dd6dc cfspack: silence compilation warning		2019-12-31 13:08:24 -05:00
..
.gitignore	tools/emul/shell: add filesystem support	2019-05-12 11:20:31 -04:00
cfspack.c	cfspack: silence compilation warning	2019-12-31 13:08:24 -05:00
cfsunpack.c	tools/cfsunpack: new tool	2019-06-17 15:21:05 -04:00
Makefile	Make makefiles and shell scripts portable	2019-12-09 09:45:22 -05:00
README.md	cfspack: allow multiple patterns and multiple paths in args	2019-12-11 21:08:46 -05:00

README.md

cfspack

A tool/library to pack files into a CFS blob and unpack a CFS blob into a directory.

Usage

To pack a directory into a CFS blob, run:

cfspack /path/to/directory

The blob is spit to stdout. If there are subdirectories, they will be prefixes to the filenames under it.

cfspack takes optional -p pattern arguments. If specified, only files matching at least one of the patterns ("fnmatch" style") will be included.

If path is a file, a CFS with a single file will be spit and its name will exclude the directory part of that filename.

The chain being spitted is always ended with a "stop block" (a zero-allocation block that stops the CFS chain). You can call cfspack with no argument to get only a stop block.

The program errors out if a file name is too long (> 26 bytes) or too big (> 0x10000 - 0x20 bytes).

To unpack a blob to a directory:

cfsunpack /path/to/dest < blob

If destination exists, files are created alongside existing ones. If a file to unpack already exists, it is overwritten.