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Diffstat (limited to 'system/xar/README')
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diff --git a/system/xar/README b/system/xar/README new file mode 100644 index 0000000000000..3bc8e854ed090 --- /dev/null +++ b/system/xar/README @@ -0,0 +1,21 @@ +xar (eXtensible ARchiver) + +The XAR project aims to provide an easily extensible archive +format. Important design decisions include an easily extensible XML +table of contents (TOC) for random access to archived files, storing +the TOC at the beginning of the archive to allow for efficient +handling of streamed archives, the ability to handle files of +arbitrarily large sizes, the ability to choose independent encodings +for individual files in the archive, the ability to store checksums +for individual files in both compressed and uncompressed form, and the +ability to query the table of content's rich meta-data. + +xar is used primarily for software install packages (.pkg files) for +macOS X. + +To actually extract a .pkg file, do something like: + +$ xar -x -f filename.pkg +$ zcat base.pkg/Payload | cpio -iv + +You'll end up with Applications/ Library/ Resources/, etc. |