Re: [PATCH 2/2] archive-tar: write extended headers for far-future mtime

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Am 21.06.2016 um 00:54 schrieb René Scharfe:
Am 16.06.2016 um 06:37 schrieb Jeff King:
   2. System tars that cannot handle pax headers.

In t5000 there is a simple interpreter for path headers for systems
whose tar doesn't handle them.  Adding one for mtime headers may be
feasible.

It's just a bit complicated to link a pax header file to the file it
applies to when it doesn't also contain a path header.  But we know that
the mtime of all entries in tar files created by git archive are is the
same, so we could simply read one header and then adjust the mtime of
all files accordingly.

This brings me to the idea of using a single global pax header for mtime instead of one per entry. It reduces the size of the archive and allows for slightly easier testing -- it just fits better since we know that all our mtimes are the same.

René

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