diff --git a/doc/guix.texi b/doc/guix.texi index 64873db00b..d69be8586e 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -36836,6 +36836,42 @@ advertised. Log level to use, specify a log level like @code{'INFO} to stop logging individual requests. +@item @code{cached-compressions} (default: @code{'()}) +Activate generating cached nars with different compression details from +the stored nars. This is a list of +nar-herder-cached-compression-configuration records. + +@item @code{min-uses} (default: @code{3}) +When cached-compressions are enabled, generate cached nars when at least +this number of requests are made for a nar. + +@item @code{workers} (default: @code{2}) +Number of cached nars to generate at a time. + +@item @code{nar-source} (default: @code{#f}) +Location to fetch nars from when computing cached compressions. By +default, the storage location will be used. + +@end table +@end deftp + +@deftp {Data Type} nar-herder-cached-compression-configuration +Data type representing the cached compression configuration. + +@table @asis +@item @code{type} +Type of compression to use, e.g. @code{'zstd}. + +@item @code{workers} (default: @code{#f}) +Level of the compression to use. + +@item @code{directory} (default: @code{#f}) +Location to store the cached nars. If unspecified, they will be stored +in /var/cache/nar-herder/nar/TYPE. + +@item @code{directory-max-size} (default: @code{#f}) +Maximum size in bytes of the directory. + @end table @end deftp diff --git a/gnu/services/guix.scm b/gnu/services/guix.scm index 65bf0b5a7f..2dfedc553e 100644 --- a/gnu/services/guix.scm +++ b/gnu/services/guix.scm @@ -126,7 +126,18 @@ (define-module (gnu services guix) nar-herder-configuration-storage nar-herder-configuration-storage-limit nar-herder-configuration-storage-nar-removal-criteria - nar-herder-configuration-log-level)) + nar-herder-configuration-log-level + nar-herder-configuration-cached-compressions + nar-herder-configuration-cached-compression-min-uses + nar-herder-configuration-cached-compression-workers + nar-herder-configuration-cached-compression-nar-source + + nar-herder-cached-compression-configuration + nar-herder-cached-compression-configuration? + nar-herder-cached-compression-configuration-type + nar-herder-cached-compression-configuration-level + nar-herder-cached-compression-configuration-directory + nar-herder-cached-compression-configuration-directory-max-size)) ;;;; Commentary: ;;; @@ -828,17 +839,67 @@ (define-record-type* (negative-ttl nar-herder-configuration-negative-ttl (default #f)) (log-level nar-herder-configuration-log-level - (default 'DEBUG))) + (default 'DEBUG)) + (cached-compressions + nar-herder-configuration-cached-compressions + (default '())) + (cached-compression-min-uses + nar-herder-configuration-cached-compression-min-uses + (default 3)) + (cached-compression-workers + nar-herder-configuration-cached-compression-workers + (default 2)) + (cached-compression-nar-source + nar-herder-configuration-cached-compression-nar-source + (default #f))) +(define-record-type* + nar-herder-cached-compression-configuration + make-nar-herder-cached-compression-configuration + nar-herder-cached-compression-configuration? + (type nar-herder-cached-compression-configuration-type) + (level nar-herder-cached-compression-configuration-level + (default #f)) + (directory nar-herder-cached-compression-configuration-directory + (default #f)) + (directory-max-size + nar-herder-cached-compression-configuration-directory-max-size + (default #f))) (define (nar-herder-shepherd-services config) + (define (cached-compression-configuration->options cached-compression) + (match-record + cached-compression + + (type level directory directory-max-size) + + `(,(simple-format #f "--enable-cached-compression=~A~A" + type + (if level + (simple-format #f ":~A" level) + "")) + ,@(if directory + (list + (simple-format #f "--cached-compression-directory=~A=~A" + type + directory)) + '()) + ,@(if directory-max-size + (list + (simple-format #f "--cached-compression-directory-max-size=~A=~A" + type + directory-max-size)) + '())))) + (match-record config (package user group mirror database database-dump host port storage storage-limit storage-nar-removal-criteria - ttl negative-ttl log-level) + ttl negative-ttl log-level + cached-compressions cached-compression-min-uses + cached-compression-workers cached-compression-nar-source) (unless (or mirror storage) (error "nar-herder: mirror or storage must be set")) @@ -882,6 +943,24 @@ (define (nar-herder-shepherd-services config) '()) #$@(if log-level (list (simple-format #f "--log-level=~A" log-level)) + '()) + #$@(append-map + cached-compression-configuration->options + cached-compressions) + #$@(if cached-compression-min-uses + (list (simple-format + #f "--cached-compression-min-uses=~A" + cached-compression-min-uses)) + '()) + #$@(if cached-compression-workers + (list (simple-format + #f "--cached-compression-workers=~A" + cached-compression-workers)) + '()) + #$@(if cached-compression-nar-source + (list (simple-format + #f "--cached-compression-nar-source=~A" + cached-compression-nar-source)) '())) #:user #$user #:group #$group