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pack: Add '--target'.

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* guix/scripts/pack.scm (self-contained-tarball): Add #:target.
(docker-image): Add #:target.
[build]: Pass it to 'build-docker-image'.
(%options, show-help): Add '--target'.
(guix-pack): Pass TARGET to 'profile-derivation' and to 'build-image'.
* guix/docker.scm (build-docker-image): Add #:system parameter and honor it.
* doc/guix.texi (Invoking guix pack): Document '--target'.
(Additional Build Options): Refer to the Autoconf manual instead of the
obsolete 'configure.info' for cross-compilation.
This commit is contained in:
Ludovic Courtès 2017-03-17 22:45:32 +01:00
parent 176febe377
commit 5461115e8f
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GPG key ID: 090B11993D9AEBB5
3 changed files with 42 additions and 12 deletions
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10
doc/guix.texi
View file

@ -2476,6 +2476,12 @@ Docker Image Specification}.
Attempt to build for @var{system}---e.g., @code{i686-linux}---instead of
the system type of the build host.
@item --target=@var{triplet}
@cindex cross-compilation
Cross-build for @var{triplet}, which must be a valid GNU triplet, such
as @code{"mips64el-linux-gnu"} (@pxref{Specifying target triplets, GNU
configuration triplets,, autoconf, Autoconf}).
@item --compression=@var{tool}
@itemx -C @var{tool}
Compress the resulting tarball using @var{tool}---one of @code{gzip},
@ -5063,8 +5069,8 @@ to build packages in a complete 32-bit environment.
@item --target=@var{triplet}
@cindex cross-compilation
Cross-build for @var{triplet}, which must be a valid GNU triplet, such
as @code{"mips64el-linux-gnu"} (@pxref{Configuration Names, GNU
configuration triplets,, configure, GNU Configure and Build System}).
as @code{"mips64el-linux-gnu"} (@pxref{Specifying target triplets, GNU
configuration triplets,, autoconf, Autoconf}).
@anchor{build-check}
@item --check

21
guix/docker.scm
View file

@ -105,12 +105,14 @@ (define (topmost-component file)
(define* (build-docker-image image path
#:key closure compressor
(symlinks '())
(system (utsname:machine (uname)))
(creation-time (current-time time-utc)))
"Write to IMAGE a Docker image archive from the given store PATH. The image
contains the closure of PATH, as specified in CLOSURE (a file produced by
#:references-graphs). SYMLINKS must be a list of (SOURCE -> TARGET) tuples
describing symlinks to be created in the image, where each TARGET is relative
to PATH.
to PATH. SYSTEM is a GNU triplet (or prefix thereof) of the system the
binaries at PATH are for; it is used to produce metadata in the image.
Use COMPRESSOR, a command such as '(\"gzip\" \"-9n\"), to compress IMAGE. Use
CREATION-TIME, a SRFI-19 time-utc object, as the creation time in metadata."
@ -118,11 +120,18 @@ (define* (build-docker-image image path
(closure (canonicalize-path closure))
(id (docker-id path))
(time (date->string (time-utc->date creation-time) "~4"))
(arch (match (utsname:machine (uname))
("x86_64" "amd64")
("i686" "386")
("armv7l" "arm")
("mips64" "mips64le"))))
(arch (let-syntax ((cond* (syntax-rules ()
((_ (pattern clause) ...)
(cond ((string-prefix? pattern system)
clause)
...
(else
(error "unsupported system"
system)))))))
(cond* ("x86_64" "amd64")
("i686" "386")
("arm" "arm")
("mips64" "mips64le")))))
;; Make sure we start with a fresh, empty working directory.
(mkdir directory)

23
guix/scripts/pack.scm
View file

@ -73,7 +73,8 @@ (define (lookup-compressor name)
(leave (_ "~a: compressor not found~%") name)))
(define* (self-contained-tarball name profile
#:key deduplicate?
#:key target
deduplicate?
(compressor (first %compressors))
localstatedir?
(symlinks '())
@ -184,14 +185,17 @@ (define tar-supports-sort?
#:references-graphs `(("profile" ,profile))))
(define* (docker-image name profile
#:key deduplicate?
#:key target
deduplicate?
(compressor (first %compressors))
localstatedir?
(symlinks '())
(tar tar))
"Return a derivation to construct a Docker image of PROFILE. The
image is a tarball conforming to the Docker Image Specification, compressed
with COMPRESSOR. It can be passed to 'docker load'."
with COMPRESSOR. It can be passed to 'docker load'. If TARGET is true, it
must a be a GNU triplet and it is used to derive the architecture metadata in
the image."
;; FIXME: Honor LOCALSTATEDIR?.
(define not-config?
(match-lambda
@ -227,6 +231,7 @@ (define build
(setenv "PATH" (string-append #$tar "/bin"))
(build-docker-image #$output #$profile
#:system (or #$target (utsname:machine (uname)))
#:closure "profile"
#:symlinks '#$symlinks
#:compressor '#$(compressor-command compressor)
@ -278,6 +283,10 @@ (define %options
(lambda (opt name arg result)
(alist-cons 'system arg
(alist-delete 'system result eq?))))
(option '("target") #t #f
(lambda (opt name arg result)
(alist-cons 'target arg
(alist-delete 'target result eq?))))
(option '(#\C "compression") #t #f
(lambda (opt name arg result)
(alist-cons 'compressor (lookup-compressor arg)
@ -314,6 +323,8 @@ (define (show-help)
-f, --format=FORMAT build a pack in the given FORMAT"))
(display (_ "
-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
(display (_ "
--target=TRIPLET cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
(display (_ "
-C, --compression=TOOL compress using TOOL--e.g., \"lzip\""))
(display (_ "
@ -354,6 +365,7 @@ (define opts
(pack-format (assoc-ref opts 'format))
(name (string-append (symbol->string pack-format)
"-pack"))
(target (assoc-ref opts 'target))
(compressor (assoc-ref opts 'compressor))
(symlinks (assoc-ref opts 'symlinks))
(build-image (match (assq-ref %formats pack-format)
@ -368,8 +380,11 @@ (define opts
(run-with-store store
(mlet* %store-monad ((profile (profile-derivation
(packages->manifest packages)))
(packages->manifest packages)
#:target target))
(drv (build-image name profile
#:target
target
#:compressor
compressor
#:symlinks