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Add Zstandard compression support for Tramp

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* lisp/net/tramp-archive.el (tramp-archive-suffixes)
(tramp-archive-compression-suffixes): Add zstd compression suffixes.
* lisp/net/tramp-sh.el (tramp-inline-compress-commands): Add
zstd (de)compression commands.
This commit is contained in:
Alexander Gramiak 2019-06-24 15:57:33 +02:00 committed by Lars Ingebrigtsen
parent c32cc62779
commit 516761576c
4 changed files with 15 additions and 7 deletions
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9
doc/misc/tramp.texi
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@ -3441,18 +3441,21 @@ Shell archives
@cindex @file{shar} file archive suffix
@cindex file archive suffix @file{shar}
@item @samp{.tar}, @samp{.tbz}, @samp{.tgz}, @samp{.tlz}, @samp{.txz} ---
@item @samp{.tar}, @samp{.tbz}, @samp{.tgz}, @samp{.tlz}, @samp{.txz},
@samp{.tzst} ---
(Compressed) tape archives
@cindex @file{tar} file archive suffix
@cindex @file{tbz} file archive suffix
@cindex @file{tgz} file archive suffix
@cindex @file{tlz} file archive suffix
@cindex @file{txz} file archive suffix
@cindex @file{tzst} file archive suffix
@cindex file archive suffix @file{tar}
@cindex file archive suffix @file{tbz}
@cindex file archive suffix @file{tgz}
@cindex file archive suffix @file{tlz}
@cindex file archive suffix @file{txz}
@cindex file archive suffix @file{tzst}
@item @samp{.warc} ---
Web archives
@ -3487,8 +3490,8 @@ File archives could also be compressed, identified by an additional
compression suffix. Valid compression suffixes are listed in the
constant @code{tramp-archive-compression-suffixes}. They are
@samp{.bz2}, @samp{.gz}, @samp{.lrz}, @samp{.lz}, @samp{.lz4},
@samp{.lzma}, @samp{.lzo}, @samp{.uu}, @samp{.xz} and @samp{.Z}. A
valid archive file name would be
@samp{.lzma}, @samp{.lzo}, @samp{.uu}, @samp{.xz}, @samp{.Z}, and
@samp{.zst}. A valid archive file name would be
@file{/path/to/dir/file.tar.gz/dir/file}. Even several suffixes in a
row are possible, like @file{/path/to/dir/file.tar.gz.uu/dir/file}.

4
etc/NEWS
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@ -1286,6 +1286,10 @@ names are adjusted to the host name from the previous hop.
timeout, after which the underlying session is disabled. This is for
security reasons.
+++
*** Zstandard compression is now supported when using libarchive 3.3
or newer.
** Rcirc
---

8
lisp/net/tramp-archive.el
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@ -77,8 +77,8 @@
;; File archives could also be compressed, identified by an additional
;; compression suffix. Valid compression suffixes are listed in the
;; constant `tramp-archive-compression-suffixes'. They are ".bz2",
;; ".gz", ".lrz", ".lz", ".lz4", ".lzma", ".lzo", ".uu", ".xz" and
;; ".Z". A valid archive file name would be
;; ".gz", ".lrz", ".lz", ".lz4", ".lzma", ".lzo", ".uu", ".xz",".Z",
;; and .zst. A valid archive file name would be
;; "/path/to/dir/file.tar.gz/dir/file". Even several suffixes in a
;; row are possible, like "/path/to/dir/file.tar.gz.uu/dir/file".
@ -154,7 +154,7 @@
"rar" ;; RAR archives.
"rpm" ;; Red Hat packages.
"shar" ;; Shell archives. Not in libarchive testsuite.
"tar" "tbz" "tgz" "tlz" "txz" ;; (Compressed) tape archives.
"tar" "tbz" "tgz" "tlz" "txz" ".tzst" ;; (Compressed) tape archives.
"warc" ;; Web archives.
"xar" ;; macOS XAR archives. Not in libarchive testsuite.
"xpi" ;; XPInstall Mozilla addons. Not in libarchive testsuite.
@ -169,7 +169,7 @@ It must be supported by libarchive(3).")
;;;###autoload
(defconst tramp-archive-compression-suffixes
'("bz2" "gz" "lrz" "lz" "lz4" "lzma" "lzo" "uu" "xz" "Z")
'("bz2" "gz" "lrz" "lz" "lz4" "lzma" "lzo" "uu" "xz" "Z" "zst")
"List of suffixes which indicate a compressed file.
It must be supported by libarchive(3).")

1
lisp/net/tramp-sh.el
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@ -4533,6 +4533,7 @@ means discard it)."
("env GZIP= gzip" "env GZIP= gzip -d")
("bzip2" "bzip2 -d")
("xz" "xz -d")
("zstd --rm" "zstd -d --rm")
("compress" "compress -d"))
"List of compress and decompress commands for inline transfer.
Each item is a list that looks like this: