GNU bug report logs - #24853
[PATCH] Automatically handle Zstandard compressed files

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From: Nick Terrell <nickrterrell <at> gmail.com>
To: 24853 <at> debbugs.gnu.org
Cc: Nick Terrell <terrelln <at> fb.com>
Subject: bug#24853: [PATCH] Automatically handle Zstandard compressed files
Date: Wed,  2 Nov 2016 17:22:48 -0700

Add support for the '.tzst' suffix to the original patch.


* lisp/jka-cmpr-hook.el (jka-compr-compression-info-list):
Add zstd compression info: <http://facebook.github.io/zstd/>
* lisp/jka-cmpr-hook.el (jka-compr-mode-alist-additions):
Handle .tzst suffix for zstd compressed tar archives.
---
 lisp/jka-cmpr-hook.el | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/lisp/jka-cmpr-hook.el b/lisp/jka-cmpr-hook.el
index 39302f0..b023bcd 100644
--- a/lisp/jka-cmpr-hook.el
+++ b/lisp/jka-cmpr-hook.el
@@ -244,7 +244,15 @@ jka-compr-compression-info-list
     ["\\.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 @@ jka-compr-compression-info-list
 (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.
-- 
2.10.0

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