diff options
| author | Ludovic Courtès <ludo@gnu.org> | 2019-05-24 08:26:38 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2019-05-27 22:47:24 +0200 |
| commit | 66229b04ae0ee05779b93d77900a062b8e0e8770 (patch) | |
| tree | 05706120a2cc22bb9120169bae7dbf5f261e54b5 /doc | |
| parent | 4e48923e7523c863996bb616c6abb7e4cb78a3b5 (diff) | |
publish: Add support for lzip.
* guix/scripts/publish.scm (show-help, %options): Support '-C METHOD'
and '-C METHOD:LEVEL'.
(default-compression): New procedure.
(bake-narinfo+nar): Add lzip.
(nar-response-port): Likewise.
(string->compression-type): New procedure.
(make-request-handler): Generalize /nar/gzip handler to handle /nar/lzip
as well.
* tests/publish.scm ("/nar/lzip/*"): New test.
("/*.narinfo with lzip compression"): New test.
* doc/guix.texi (Invoking guix publish): Document it.
(Requirements): Mention lzlib.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guix.texi | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 98c5d1e91d..340b806962 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -758,6 +758,11 @@ Support for build offloading (@pxref{Daemon Offload Setup}) and version 0.10.2 or later. @item +When @url{https://www.nongnu.org/lzip/lzlib.html, lzlib} is available, lzlib +substitutes can be used and @command{guix publish} can compress substitutes +with lzlib. + +@item When @url{http://www.bzip.org, libbz2} is available, @command{guix-daemon} can use it to compress build logs. @end itemize @@ -9656,12 +9661,20 @@ accept connections from any interface. Change privileges to @var{user} as soon as possible---i.e., once the server socket is open and the signing key has been read. -@item --compression[=@var{level}] -@itemx -C [@var{level}] -Compress data using the given @var{level}. When @var{level} is zero, -disable compression. The range 1 to 9 corresponds to different gzip -compression levels: 1 is the fastest, and 9 is the best (CPU-intensive). -The default is 3. +@item --compression[=@var{method}[:@var{level}]] +@itemx -C [@var{method}[:@var{level}]] +Compress data using the given @var{method} and @var{level}. @var{method} is +one of @code{lzip} and @code{gzip}; when @var{method} is omitted, @code{gzip} +is used. + +When @var{level} is zero, disable compression. The range 1 to 9 corresponds +to different compression levels: 1 is the fastest, and 9 is the best +(CPU-intensive). The default is 3. + +Usually, @code{lzip} compresses noticeably better than @code{gzip} for a small +increase in CPU usage; see +@uref{https://nongnu.org/lzip/lzip_benchmark.html,benchmarks on the lzip Web +page}. Unless @option{--cache} is used, compression occurs on the fly and the compressed streams are not |