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Support zstd compressed files

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* lisp/jka-cmpr-hook.el (jka-compr-compression-info-list): Add
zstd compression info: <http://facebook.github.io/zstd/>.
(jka-compr-mode-alist-additions): Handle .tzst suffix for zstd
compressed tar archives.  (Bug#24853)

Copyright-paperwork-exempt: yes
This commit is contained in:
Nick Terrell 2016-11-05 11:42:15 +02:00 • committed by Eli Zaretskii
parent ebaf39e3f2
commit f95bf3cd1f
1 changed files with 11 additions and 2 deletions
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13
lisp/jka-cmpr-hook.el
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@ -244,7 +244,15 @@ options through Custom does this automatically."
["\\.dz\\'"
nil nil nil
"uncompressing" "gzip" ("-c" "-q" "-d")
nil t "\037\213"]))
nil t "\037\213"]
["\\.zst\\'"
"zstd compressing" "zstd" ("-c" "-q")
"zstd uncompressing" "zstd" ("-c" "-q" "-d")
t t "\050\265\057\375"]
["\\.tzst\\'"
"zstd compressing" "zstd" ("-c" "-q")
"zstd uncompressing" "zstd" ("-c" "-q" "-d")
t nil "\050\265\057\375"]))
"List of vectors that describe available compression techniques.
Each element, which describes a compression technique, is a vector of
@ -308,7 +316,8 @@ variables. Setting this through Custom does that automatically."
(defcustom jka-compr-mode-alist-additions
(purecopy '(("\\.tgz\\'" . tar-mode)
("\\.tbz2?\\'" . tar-mode)
("\\.txz\\'" . tar-mode)))
("\\.txz\\'" . tar-mode)
("\\.tzst\\'" . tar-mode)))
"List of pairs added to `auto-mode-alist' when installing jka-compr.
Uninstalling jka-compr removes all pairs from `auto-mode-alist' that
installing added.