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Re: [packaging] TAG discusses the packaging spec

From: Ivan Herman <ivan@w3.org>
Date: Tue, 2 Jun 2015 15:38:38 +0200
Cc: W3C Digital Publishing IG <public-digipub-ig@w3.org>
Message-Id: <F925584D-3CC9-4E08-9064-AD3683030D1F@w3.org>
To: Dave Cramer <dauwhe@gmail.com>
The reference [4] is actually interesting (I do not claim to understand everything in the mails, unfortunately):

Ilya and I had a chance to chat this afternoon and he had a brilliant idea:
what if there were a preamble section that allowed the package to simply be
a hint to UA to start fetching a list of (not-included) resources?

This would let you invoke one with:

    <link rel="package" href="/lib/brand.pack">

Note the lack of a "scope" attribute.

The contents of "brand.back" wouldn't be a resources, but instead is a list
of URLs to request. This would let a site reduce the number (and
repetition) of <link rel="prefetch"> tags in the first (crucial bytes).
This could be done by using the preamble section
> of the package to
include a structured list of URLs to preflight.


This resembles a bit to what we discussed yesterday: that we need a 'virtual' package, or the concept of an abstract document even when things are not physically packed. This 'brand.pack' in the core may be considered as some sort of a manifest listing all the files that belong to a book; much like a opf file in EPUB. Ie, if the URL request returns that file then all other constituents are on the Web, if it returns a full package then, well, it has to be unpacked in the client.

Something like that…:-)


> On 02 Jun 2015, at 01:47 , Dave Cramer <dauwhe@gmail.com> wrote:
> I've been looking at the issues in the packaging spec github repository [1]. One issue is to address feedback from the April 2015 F2F. Turns out this is the TAG F2F, and minutes of the discussion of packaging are at [2].
> For context, it helps to read the thread on public-web-perf [3][4][5].
> Thanks,
> Dave
> [1] https://github.com/w3ctag/packaging-on-the-web/issues
> [2] https://github.com/w3ctag/meetings/blob/gh-pages/2015/04-sfo/04-22-minutes.md#packaging-with-special-guest-ilya-httpsgithubcomw3ctagpackaging-on-the-web
> [3] https://lists.w3.org/Archives/Public/public-web-perf/2015Jan/0027.html
> [4] https://lists.w3.org/Archives/Public/public-web-perf/2015Jan/0038.html
> [5] https://lists.w3.org/Archives/Public/public-web-perf/2015Jan/0041.html

Ivan Herman, W3C
Digital Publishing Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
ORCID ID: http://orcid.org/0000-0003-0782-2704

Received on Tuesday, 2 June 2015 13:38:47 UTC

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