GNU bug report logs - #42223
26.1; squashfs-mode (like tar-mode or zip-mode)

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Package: emacs;

Reported by: trentbuck <at> gmail.com (Trent W. Buck)

Date: Mon, 6 Jul 2020 02:09:02 UTC

Severity: wishlist

Tags: fixed, patch

Merged with 43827

Found in version 26.1

Fixed in version 28.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#42223; Package emacs. (Mon, 06 Jul 2020 02:09:02 GMT) Full text and rfc822 format available.
Acknowledgement sent to trentbuck <at> gmail.com (Trent W. Buck):
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Mon, 06 Jul 2020 02:09:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: trentbuck <at> gmail.com (Trent W. Buck)
To: bug-gnu-emacs <at> gnu.org
Subject: 26.1; squashfs-mode (like tar-mode or zip-mode)
Date: Mon, 06 Jul 2020 12:08:05 +1000

squashfs is sort of a cross between .iso and .tgz:

    tar c my-docs | tar2sq my-docs.squashfs   # make archive
    gensquashfs -D my-docs my-docs.squashfs   # make archive
    sudo mount my-docs.squashfs /mnt          # mount it (like iso)
    rdsquashfs -u my-docs2 my-docs.squashfs   # extract all (like tar)
    rdsquashfs --list / my-docs.squashfs      # list all (like tar)
    rdsquashfs --cat foo.txt my-docs.squashfs # read one file

I've used squashfs instead of iso/tar/zip for about 15 years now.

Emacs has "good enough" unzip and tar modes -- I click on foo.odt,
see the file list, click on a file, and see the file contents.

Please can I have that for squashfs as well?

This basically means providing a dired-like wrapper for
"rdsquashfs --list" and "rdsquashfs --cat".


Additional notes:

  * Buffers should be read-only-mode by default.
    (Squashfs format has limited append support, but
    it's essentially a read-only format.)

  * There are two major implementations.
    I have given examples in squashfs-tools-ng format, because
    that is more amenable to scripting.

      https://github.com/AgentD/squashfs-tools-ng
      https://github.com/plougher/squashfs-tools

  * squashfs files are often very big (~2GB), so
    reading the whole thing into RAM like tar-mode does is a Bad Idea.
Severity set to 'wishlist' from 'normal' Request was from Stefan Kangas <stefan <at> marxist.se> to control <at> debbugs.gnu.org. (Thu, 13 Aug 2020 00:29:01 GMT) Full text and rfc822 format available.
Merged 42223 43827. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> debbugs.gnu.org. (Tue, 06 Oct 2020 15:41:02 GMT) Full text and rfc822 format available.
Added tag(s) fixed. Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Fri, 23 Oct 2020 11:05:03 GMT) Full text and rfc822 format available.
bug marked as fixed in version 28.1, send any further explanations to 43827 <at> debbugs.gnu.org and Ruthra Kumar <ruthrab <at> gmail.com> Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Fri, 23 Oct 2020 11:05:03 GMT) Full text and rfc822 format available.
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Fri, 20 Nov 2020 12:24:06 GMT) Full text and rfc822 format available.
This bug report was last modified 4 years and 209 days ago.

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