* bug#2353: 23.0.90; jka-compr: LZMA support
@ 2009-02-17 6:36 trentbuck
2009-03-04 18:26 ` James Cloos
0 siblings, 1 reply; 4+ messages in thread
From: trentbuck @ 2009-02-17 6:36 UTC (permalink / raw
To: emacs-pretest-bug; +Cc: rfrancoise
From lzma(1):
LZMA (Lempel-Ziv-Markov chain-Algorithm) is an improved version of
famous LZ77 compression algorithm. It was improved in way of
maximum increasing of compression ratio, keeping high
decompression speed and low memory requirements for decompressing.
This seems to work such that foo.tar.lzma can be opened happily by
Emacs. I suggest adding it to the default list in jka-compr.el.
(progn
(add-to-list 'jka-compr-compression-info-list
["\\.lzma\\(~\\|\\.~[0-9]+~\\)?\\'" nil "lzma" nil nil "unlzma" nil nil t ""])
(jka-compr-set 'jka-compr-compression-info-list jka-compr-compression-info-list))
PS: I'm not sure whether to use nil or "" for this case: there is no
reliable magic for lzma files. From my /usr/share/file/magic:
# URL: http://www.7-zip.org/sdk.html
# From: Robert Millan <rmh@aybabtu.com> and Reuben Thomas <rrt@sc3d.org>
# Commented out because apparently not reliable (according to Debian
# bug #364260)
#0 string ]\000\000\200\000 LZMA compressed data
In GNU Emacs 23.0.90.1 (i486-pc-linux-gnu, GTK+ Version 2.12.11)
of 2009-02-07 on elegiac, modified by Debian
(emacs-snapshot package, version 1:20090207-1)
configured using `configure '--build' 'i486-linux-gnu' '--host' 'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.90/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.90/site-lisp:/usr/share/emacs/site-lisp' '--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed' 'CPPFLAGS=''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: C
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_AU.utf8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Emacs-Lisp
Minor modes in effect:
diff-auto-refine-mode: t
eldoc-mode: t
paredit-mode: t
shell-dirtrack-mode: t
rcirc-track-minor-mode: t
savehist-mode: t
icomplete-mode: t
partial-completion-mode: t
show-paren-mode: t
delete-selection-mode: t
tooltip-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
ESC x i r c C-j ESC x g n u s RET q y C-c C-@ C-c C-l
ESC o ESC a C-c C-@ C-c C-@ C-c C-@ C-c C-@ C-c C-@
C-c C-@ C-x C-f ~ / V C S / C-j C-h C-s ESC O B ESC
O B ESC > C-x C-f ~ / . e m a c s RET ESC O A ESC O
A ESC [ 1 ~ ESC O A C-@ ESC O B ESC O B ESC O B ESC
O B ESC w ESC x r e p o r t SPC e m a c s RET
Recent messages:
Opening nndoc server on gnus-help...done
Checking new news...done
Are you sure you want to quit reading news? (y or n)
(No changes need to be saved)
Activity in this buffer is low priority
Rcirc-Omit mode enabled
Loading tramp...done
Mark set
Followed link to /home/twb/Preferences/.emacs
Mark set
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#2353: 23.0.90; jka-compr: LZMA support
2009-02-17 6:36 bug#2353: 23.0.90; jka-compr: LZMA support trentbuck
@ 2009-03-04 18:26 ` James Cloos
2012-02-09 21:23 ` Glenn Morris
0 siblings, 1 reply; 4+ messages in thread
From: James Cloos @ 2009-03-04 18:26 UTC (permalink / raw
To: 2353
When doing this, xz (lzma's replacement) should be added, too.
The typical extension is .xz and the commands are xz to compress,
unxz to decompress, and xzdec to to decompress to stdout.
Unlike lzma, xz does have reliable file magic; AFAIK, though, it
has not yet been translated into magic(5) format.
-JimC
--
James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#2353: 23.0.90; jka-compr: LZMA support
2009-03-04 18:26 ` James Cloos
@ 2012-02-09 21:23 ` Glenn Morris
2012-02-09 22:13 ` Eli Zaretskii
0 siblings, 1 reply; 4+ messages in thread
From: Glenn Morris @ 2012-02-09 21:23 UTC (permalink / raw
To: 2353-done
Version: 24.1
I noticed that jka-compr-compression-info-list now has entries
for lzma (since end Jan) and xz.
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#2353: 23.0.90; jka-compr: LZMA support
2012-02-09 21:23 ` Glenn Morris
@ 2012-02-09 22:13 ` Eli Zaretskii
0 siblings, 0 replies; 4+ messages in thread
From: Eli Zaretskii @ 2012-02-09 22:13 UTC (permalink / raw
To: Glenn Morris; +Cc: 2353
> From: Glenn Morris <rgm@gnu.org>
> Date: Thu, 09 Feb 2012 16:23:22 -0500
>
> Version: 24.1
>
> I noticed that jka-compr-compression-info-list now has entries
> for lzma (since end Jan) and xz.
Yes, I added them (after I saw several GNU packages started using
these formats exclusively, and more are considering that).
I think we can close that bug.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-02-09 22:13 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2009-02-17 6:36 bug#2353: 23.0.90; jka-compr: LZMA support trentbuck
2009-03-04 18:26 ` James Cloos
2012-02-09 21:23 ` Glenn Morris
2012-02-09 22:13 ` Eli Zaretskii
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