Mirror of GNU Guix
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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix scripts build)
#:use-module (guix ui)
#:use-module (guix scripts)
#:use-module (guix store)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix grafts)
#:use-module (guix utils)
;; Use the procedure that destructures "NAME-VERSION" forms.
#:use-module ((guix build utils)
#:select ((package-name->name+version
. hyphen-package-name->name+version)))
#:use-module (guix monads)
#:use-module (guix gexp)
#:autoload (guix http-client) (http-fetch http-get-error?)
#:use-module (ice-9 format)
#:use-module (ice-9 match)
#:use-module (ice-9 vlist)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-37)
#:autoload (gnu packages) (specification->package %package-module-path)
#:autoload (guix download) (download-to-store)
#:autoload (guix git-download) (git-reference?)
#:autoload (guix git) (git-checkout?)
#:use-module (guix status)
#:use-module ((guix progress) #:select (current-terminal-columns))
#:use-module ((guix build syscalls) #:select (terminal-columns))
#:export (%standard-build-options
set-build-options-from-command-line
set-build-options-from-command-line*
show-build-options-help
%transformation-options
options->transformation
show-transformation-options-help
guix-build
register-root
register-root*))
(define %default-log-urls
;; Default base URLs for build logs.
'("http://hydra.gnu.org/log"))
;; XXX: The following procedure cannot be in (guix store) because of the
;; dependency on (guix derivations).
(define* (log-url store file #:key (base-urls %default-log-urls))
"Return a URL under one of the BASE-URLS where a build log for FILE can be
found. Return #f if no build log was found."
(define (valid-url? url)
;; Probe URL and return #t if it is accessible.
(catch #t
(lambda ()
(guard (c ((http-get-error? c) #f))
(close-port (http-fetch url #:buffered? #f))
#t))
(match-lambda*
(('getaddrinfo-error . _)
#f)
(('tls-certificate-error args ...)
(report-error (G_ "cannot access build log at '~a':~%") url)
(print-exception (current-error-port) #f
'tls-certificate-error args)
(exit 1))
((key . args)
(apply throw key args)))))
(define (find-url file)
(let ((base (basename file)))
(any (lambda (base-url)
(let ((url (string-append base-url "/" base)))
(and (valid-url? url) url)))
base-urls)))
(cond ((derivation-path? file)
(catch 'system-error
(lambda ()
;; Usually we'll have more luck with the output file name since
;; the deriver that was used by the server could be different, so
;; try one of the output file names.
(let ((drv (read-derivation-from-file file)))
(or (find-url (derivation->output-path drv))
(find-url file))))
(lambda args
;; As a last resort, try the .drv.
(if (= ENOENT (system-error-errno args))
(find-url file)
(apply throw args)))))
(else
(find-url file))))
(define (register-root store paths root)
"Register ROOT as an indirect GC root for all of PATHS."
(let* ((root (if (string-prefix? "/" root)
root
(string-append (canonicalize-path (dirname root))
"/" root))))
(catch 'system-error
(lambda ()
(match paths
((path)
(symlink path root)
(add-indirect-root store root))
((paths ...)
(fold (lambda (path count)
(let ((root (string-append root
"-"
(number->string count))))
(symlink path root)
(add-indirect-root store root))
(+ 1 count))
0
paths))))
(lambda args
(leave (G_ "failed to create GC root `~a': ~a~%")
root (strerror (system-error-errno args)))))))
(define register-root*
(store-lift register-root))
(define (numeric-extension? file-name)
"Return true if FILE-NAME ends with digits."
(string-every char-set:hex-digit (file-extension file-name)))
(define (tarball-base-name file-name)
"Return the \"base\" of FILE-NAME, removing '.tar.gz' or similar
extensions."
;; TODO: Factorize.
(cond ((not (file-extension file-name))
file-name)
((numeric-extension? file-name)
file-name)
((string=? (file-extension file-name) "tar")
(file-sans-extension file-name))
((file-extension file-name)
=>
(match-lambda
("scm" file-name)
(else (tarball-base-name (file-sans-extension file-name)))))
(else
file-name)))
(define* (package-with-source store p uri #:optional version)
"Return a package based on P but with its source taken from URI. Extract
the new package's version number from URI."
(let ((base (tarball-base-name (basename uri))))
(let-values (((_ version*)
(hyphen-package-name->name+version base)))
(package (inherit p)
(version (or version version*
(package-version p)))
;; Use #:recursive? #t to allow for directories.
(source (download-to-store store uri
#:recursive? #t))
;; Override the replacement, otherwise '--with-source' would
;; have no effect.
(replacement #f)))))
;;;
;;; Transformations.
;;;
(define (transform-package-source sources)
"Return a transformation procedure that replaces package sources with the
matching URIs given in SOURCES."
(define new-sources
(map (lambda (uri)
(match (string-index uri #\=)
(#f
;; Determine the package name and version from URI.
(call-with-values
(lambda ()
(hyphen-package-name->name+version
(tarball-base-name (basename uri))))
(lambda (name version)
(list name version uri))))
(index
;; What's before INDEX is a "PKG@VER" or "PKG" spec.
(call-with-values
(lambda ()
(package-name->name+version (string-take uri index)))
(lambda (name version)
(list name version
(string-drop uri (+ 1 index))))))))
sources))
(lambda (store obj)
(let loop ((sources new-sources)
(result '()))
(match obj
((? package? p)
(match (assoc-ref sources (package-name p))
((version source)
(package-with-source store p source version))
(#f
p)))
(_
obj)))))
(define (evaluate-replacement-specs specs proc)
"Parse SPECS, a list of strings like \"guile=guile@2.1\", and invoke PROC on
each package pair specified by SPECS. Return the resulting list. Raise an
error if an element of SPECS uses invalid syntax, or if a package it refers to
could not be found."
(define not-equal
(char-set-complement (char-set #\=)))
(map (lambda (spec)
(match (string-tokenize spec not-equal)
((old new)
(proc (specification->package old)
(specification->package new)))
(x
(leave (G_ "invalid replacement specification: ~s~%") spec))))
specs))
(define (transform-package-inputs replacement-specs)
"Return a procedure that, when passed a package, replaces its direct
dependencies according to REPLACEMENT-SPECS. REPLACEMENT-SPECS is a list of
strings like \"guile=guile@2.1\" meaning that, any dependency on a package
called \"guile\" must be replaced with a dependency on a version 2.1 of
\"guile\"."
(let* ((replacements (evaluate-replacement-specs replacement-specs cons))
(rewrite (package-input-rewriting replacements)))
(lambda (store obj)
(if (package? obj)
(rewrite obj)
obj))))
(define (transform-package-inputs/graft replacement-specs)
"Return a procedure that, when passed a package, replaces its direct
dependencies according to REPLACEMENT-SPECS. REPLACEMENT-SPECS is a list of
strings like \"gnutls=gnutls@3.5.4\" meaning that packages are built using the
current 'gnutls' package, after which version 3.5.4 is grafted onto them."
(define (replacement-pair old new)
(cons old
(package (inherit old) (replacement new))))
(let* ((replacements (evaluate-replacement-specs replacement-specs
replacement-pair))
(rewrite (package-input-rewriting replacements)))
(lambda (store obj)
(if (package? obj)
(rewrite obj)
obj))))
(define (evaluate-git-replacement-specs specs proc)
"Parse SPECS, a list of strings like \"guile=stable-2.2\", and return a list
of package pairs, where (PROC PACKAGE URL BRANCH-OR-COMMIT) returns the
replacement package. Raise an error if an element of SPECS uses invalid
syntax, or if a package it refers to could not be found."
(define not-equal
(char-set-complement (char-set #\=)))
(map (lambda (spec)
(match (string-tokenize spec not-equal)
((name branch-or-commit)
(let* ((old (specification->package name))
(source (package-source old))
(url (cond ((and (origin? source)
(git-reference? (origin-uri source)))
(git-reference-url (origin-uri source)))
((git-checkout? source)
(git-checkout-url source))
(else
(leave (G_ "the source of ~a is not a Git \
reference~%")
(package-full-name old))))))
(cons old (proc old url branch-or-commit))))
(x
(leave (G_ "invalid replacement specification: ~s~%") spec))))
specs))
(define (transform-package-source-branch replacement-specs)
"Return a procedure that, when passed a package, replaces its direct
dependencies according to REPLACEMENT-SPECS. REPLACEMENT-SPECS is a list of
strings like \"guile-next=stable-3.0\" meaning that packages are built using
'guile-next' from the latest commit on its 'stable-3.0' branch."
(define (replace old url branch)
(package
(inherit old)
(version (string-append "git." branch))
(source (git-checkout (url url) (branch branch)))))
(let* ((replacements (evaluate-git-replacement-specs replacement-specs
replace))
(rewrite (package-input-rewriting replacements)))
(lambda (store obj)
(if (package? obj)
(rewrite obj)
obj))))
(define (transform-package-source-commit replacement-specs)
"Return a procedure that, when passed a package, replaces its direct
dependencies according to REPLACEMENT-SPECS. REPLACEMENT-SPECS is a list of
strings like \"guile-next=cabba9e\" meaning that packages are built using
'guile-next' from commit 'cabba9e'."
(define (replace old url commit)
(package
(inherit old)
(version (string-append "git."
(if (< (string-length commit) 7)
commit
(string-take commit 7))))
(source (git-checkout (url url) (commit commit)))))
(let* ((replacements (evaluate-git-replacement-specs replacement-specs
replace))
(rewrite (package-input-rewriting replacements)))
(lambda (store obj)
(if (package? obj)
(rewrite obj)
obj))))
(define %transformations
;; Transformations that can be applied to things to build. The car is the
;; key used in the option alist, and the cdr is the transformation
;; procedure; it is called with two arguments: the store, and a list of
;; things to build.
`((with-source . ,transform-package-source)
(with-input . ,transform-package-inputs)
(with-graft . ,transform-package-inputs/graft)
(with-branch . ,transform-package-source-branch)
(with-commit . ,transform-package-source-commit)))
(define %transformation-options
;; The command-line interface to the above transformations.
(let ((parser (lambda (symbol)
(lambda (opt name arg result . rest)
(apply values
(alist-cons symbol arg result)
rest)))))
(list (option '("with-source") #t #f
(parser 'with-source))
(option '("with-input") #t #f
(parser 'with-input))
(option '("with-graft") #t #f
(parser 'with-graft))
(option '("with-branch") #t #f
(parser 'with-branch))
(option '("with-commit") #t #f
(parser 'with-commit)))))
(define (show-transformation-options-help)
(display (G_ "
--with-source=SOURCE
use SOURCE when building the corresponding package"))
(display (G_ "
--with-input=PACKAGE=REPLACEMENT
replace dependency PACKAGE by REPLACEMENT"))
(display (G_ "
--with-graft=PACKAGE=REPLACEMENT
graft REPLACEMENT on packages that refer to PACKAGE"))
(display (G_ "
--with-branch=PACKAGE=BRANCH
build PACKAGE from the latest commit of BRANCH"))
(display (G_ "
--with-commit=PACKAGE=COMMIT
build PACKAGE from COMMIT")))
(define (options->transformation opts)
"Return a procedure that, when passed an object to build (package,
derivation, etc.), applies the transformations specified by OPTS."
(define applicable
;; List of applicable transformations as symbol/procedure pairs.
(filter-map (match-lambda
((key . transform)
(match (filter-map (match-lambda
((k . arg)
(and (eq? k key) arg)))
opts)
(() #f)
(args (cons key (transform args))))))
%transformations))
(lambda (store obj)
(fold (match-lambda*
(((name . transform) obj)
(let ((new (transform store obj)))
(when (eq? new obj)
(warning (G_ "transformation '~a' had no effect on ~a~%")
name
(if (package? obj)
(package-full-name obj)
obj)))
new)))
obj
applicable)))
;;;
;;; Standard command-line build options.
;;;
(define (show-build-options-help)
"Display on the current output port help about the standard command-line
options handled by 'set-build-options-from-command-line', and listed in
'%standard-build-options'."
(display (G_ "
-L, --load-path=DIR prepend DIR to the package module search path"))
(display (G_ "
-K, --keep-failed keep build tree of failed builds"))
(display (G_ "
-k, --keep-going keep going when some of the derivations fail"))
(display (G_ "
-n, --dry-run do not build the derivations"))
(display (G_ "
--fallback fall back to building when the substituter fails"))
(display (G_ "
--no-substitutes build instead of resorting to pre-built substitutes"))
(display (G_ "
--substitute-urls=URLS
fetch substitute from URLS if they are authorized"))
(display (G_ "
--no-grafts do not graft packages"))
(display (G_ "
--no-build-hook do not attempt to offload builds via the build hook"))
(display (G_ "
--max-silent-time=SECONDS
mark the build as failed after SECONDS of silence"))
(display (G_ "
--timeout=SECONDS mark the build as failed after SECONDS of activity"))
(display (G_ "
--verbosity=LEVEL use the given verbosity LEVEL"))
(display (G_ "
--rounds=N build N times in a row to detect non-determinism"))
(display (G_ "
-c, --cores=N allow the use of up to N CPU cores for the build"))
(display (G_ "
-M, --max-jobs=N allow at most N build jobs")))
(define (set-build-options-from-command-line store opts)
"Given OPTS, an alist as returned by 'args-fold' given
'%standard-build-options', set the corresponding build options on STORE."
;; TODO: Add more options.
(set-build-options store
#:keep-failed? (assoc-ref opts 'keep-failed?)
#:keep-going? (assoc-ref opts 'keep-going?)
#:rounds (assoc-ref opts 'rounds)
#:build-cores (assoc-ref opts 'cores)
#:max-build-jobs (assoc-ref opts 'max-jobs)
#:fallback? (assoc-ref opts 'fallback?)
#:use-substitutes? (assoc-ref opts 'substitutes?)
#:substitute-urls (assoc-ref opts 'substitute-urls)
#:use-build-hook? (assoc-ref opts 'build-hook?)
#:max-silent-time (assoc-ref opts 'max-silent-time)
#:timeout (assoc-ref opts 'timeout)
#:print-build-trace (assoc-ref opts 'print-build-trace?)
#:print-extended-build-trace?
(assoc-ref opts 'print-extended-build-trace?)
#:multiplexed-build-output?
(assoc-ref opts 'multiplexed-build-output?)
#:verbosity (assoc-ref opts 'verbosity)))
(define set-build-options-from-command-line*
(store-lift set-build-options-from-command-line))
(define %standard-build-options
;; List of standard command-line options for tools that build something.
(list (option '(#\L "load-path") #t #f
(lambda (opt name arg result . rest)
;; XXX: Imperatively modify the search paths.
(%package-module-path (cons arg (%package-module-path)))
(%patch-path (cons arg (%patch-path)))
(set! %load-path (cons arg %load-path))
(set! %load-compiled-path (cons arg %load-compiled-path))
(apply values (cons result rest))))
(option '(#\K "keep-failed") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'keep-failed? #t result)
rest)))
(option '(#\k "keep-going") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'keep-going? #t result)
rest)))
(option '("rounds") #t #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'rounds (string->number* arg)
result)
rest)))
(option '("fallback") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'fallback? #t
(alist-delete 'fallback? result))
rest)))
(option '("no-substitutes") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'substitutes? #f
(alist-delete 'substitutes? result))
rest)))
(option '("substitute-urls") #t #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'substitute-urls
(string-tokenize arg)
(alist-delete 'substitute-urls result))
rest)))
(option '("no-grafts") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'graft? #f
(alist-delete 'graft? result eq?))
rest)))
(option '("no-build-hook") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'build-hook? #f
(alist-delete 'build-hook? result))
rest)))
(option '("max-silent-time") #t #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'max-silent-time (string->number* arg)
result)
rest)))
(option '("timeout") #t #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'timeout (string->number* arg) result)
rest)))
(option '("verbosity") #t #f
(lambda (opt name arg result . rest)
(let ((level (string->number arg)))
(apply values
(alist-cons 'verbosity level
(alist-delete 'verbosity result))
rest))))
(option '(#\c "cores") #t #f
(lambda (opt name arg result . rest)
(let ((c (false-if-exception (string->number arg))))
(if c
(apply values (alist-cons 'cores c result) rest)
(leave (G_ "not a number: '~a' option argument: ~a~%")
name arg)))))
(option '(#\M "max-jobs") #t #f
(lambda (opt name arg result . rest)
(let ((c (false-if-exception (string->number arg))))
(if c
(apply values (alist-cons 'max-jobs c result) rest)
(leave (G_ "not a number: '~a' option argument: ~a~%")
name arg)))))))
;;;
;;; Command-line options.
;;;
(define %default-options
;; Alist of default option values.
`((system . ,(%current-system))
(build-mode . ,(build-mode normal))
(graft? . #t)
(substitutes? . #t)
(build-hook? . #t)
(print-build-trace? . #t)
(print-extended-build-trace? . #t)
(multiplexed-build-output? . #t)
(verbosity . 0)))
(define (show-help)
(display (G_ "Usage: guix build [OPTION]... PACKAGE-OR-DERIVATION...
Build the given PACKAGE-OR-DERIVATION and return their output paths.\n"))
(display (G_ "
-e, --expression=EXPR build the package or derivation EXPR evaluates to"))
(display (G_ "
-f, --file=FILE build the package or derivation that the code within
FILE evaluates to"))
(display (G_ "
-S, --source build the packages' source derivations"))
(display (G_ "
--sources[=TYPE] build source derivations; TYPE may optionally be one
of \"package\", \"all\" (default), or \"transitive\""))
(display (G_ "
-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
(display (G_ "
--target=TRIPLET cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
(display (G_ "
-d, --derivations return the derivation paths of the given packages"))
(display (G_ "
--check rebuild items to check for non-determinism issues"))
(display (G_ "
--repair repair the specified items"))
(display (G_ "
-r, --root=FILE make FILE a symlink to the result, and register it
as a garbage collector root"))
(display (G_ "
-q, --quiet do not show the build log"))
(display (G_ "
--log-file return the log file names for the given derivations"))
(newline)
(show-build-options-help)
(newline)
(show-transformation-options-help)
(newline)
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %options
;; Specifications of the command-line options.
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix build")))
(option '(#\S "source") #f #f
(lambda (opt name arg result)
(alist-cons 'source #t result)))
(option '("sources") #f #t
(lambda (opt name arg result)
(match arg
("package"
(alist-cons 'source #t result))
((or "all" #f)
(alist-cons 'source package-direct-sources result))
("transitive"
(alist-cons 'source package-transitive-sources result))
(else
(leave (G_ "invalid argument: '~a' option argument: ~a, ~
must be one of 'package', 'all', or 'transitive'~%")
name arg)))))
(option '("check") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'build-mode (build-mode check)
result)
rest)))
(option '("repair") #f #f
(lambda (opt name arg result . rest)
(apply values
(alist-cons 'build-mode (build-mode repair)
result)
rest)))
(option '(#\s "system") #t #f
(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 '(#\d "derivations") #f #f
(lambda (opt name arg result)
(alist-cons 'derivations-only? #t result)))
(option '(#\e "expression") #t #f
(lambda (opt name arg result)
(alist-cons 'expression arg result)))
(option '(#\f "file") #t #f
(lambda (opt name arg result)
(alist-cons 'file arg result)))
(option '(#\n "dry-run") #f #f
(lambda (opt name arg result)
(alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
(option '(#\r "root") #t #f
(lambda (opt name arg result)
(alist-cons 'gc-root arg result)))
(option '(#\q "quiet") #f #f
(lambda (opt name arg result)
(alist-cons 'quiet? #t result)))
(option '("log-file") #f #f
(lambda (opt name arg result)
(alist-cons 'log-file? #t result)))
(append %transformation-options
%standard-build-options)))
(define (options->things-to-build opts)
"Read the arguments from OPTS and return a list of high-level objects to
build---packages, gexps, derivations, and so on."
(define (validate-type x)
(unless (or (derivation? x) (file-like? x) (gexp? x) (procedure? x))
(leave (G_ "~s: not something we can build~%") x)))
(define (ensure-list x)
(let ((lst (match x
((x ...) x)
(x (list x)))))
(for-each validate-type lst)
lst))
(append-map (match-lambda
(('argument . (? string? spec))
(cond ((derivation-path? spec)
(list (read-derivation-from-file spec)))
((store-path? spec)
;; Nothing to do; maybe for --log-file.
'())
(else
(list (specification->package spec)))))
(('file . file)
(ensure-list (load* file (make-user-module '()))))
(('expression . str)
(ensure-list (read/eval str)))
(('argument . (? derivation? drv))
drv)
(_ '()))
opts))
(define (options->derivations store opts)
"Given OPTS, the result of 'args-fold', return a list of derivations to
build."
(define transform
(options->transformation opts))
(define package->derivation
(match (assoc-ref opts 'target)
(#f package-derivation)
(triplet
(cut package-cross-derivation <> <> triplet <>))))
(define src (assoc-ref opts 'source))
(define system (assoc-ref opts 'system))
(define graft? (assoc-ref opts 'graft?))
;; We may get 'unbound-variable' errors while evaluating the 'inputs' fields
;; of user packages. Since 'guix build' is the primary tool for people
;; testing new packages, report such errors gracefully.
(with-unbound-variable-handling
(parameterize ((%graft? graft?))
(append-map (match-lambda
((? package? p)
(let ((p (or (and graft? (package-replacement p)) p)))
(match src
(#f
(list (package->derivation store p system)))
(#t
(match (package-source p)
(#f
(format (current-error-port)
(G_ "~a: warning: \
package '~a' has no source~%")
(location->string (package-location p))
(package-name p))
'())
(s
(list (package-source-derivation store s)))))
(proc
(map (cut package-source-derivation store <>)
(proc p))))))
((? derivation? drv)
(list drv))
((? procedure? proc)
(list (run-with-store store
(mbegin %store-monad
(set-guile-for-build (default-guile))
(proc))
#:system system)))
((? file-like? obj)
(list (run-with-store store
(lower-object obj system
#:target (assoc-ref opts 'target)))))
((? gexp? gexp)
(list (run-with-store store
(mbegin %store-monad
(set-guile-for-build (default-guile))
(gexp->derivation "gexp" gexp
#:system system))))))
(map (cut transform store <>)
(options->things-to-build opts))))))
(define (show-build-log store file urls)
"Show the build log for FILE, falling back to remote logs from URLS if
needed."
(let ((log (or (log-file store file)
(log-url store file #:base-urls urls))))
(if log
(format #t "~a~%" log)
(leave (G_ "no build log for '~a'~%") file))))
;;;
;;; Entry point.
;;;
(define (guix-build . args)
(define opts
(parse-command-line args %options
(list %default-options)))
(define quiet?
(assoc-ref opts 'quiet?))
(with-error-handling
;; Ask for absolute file names so that .drv file names passed from the
;; user to 'read-derivation' are absolute when it returns.
(with-fluids ((%file-port-name-canonicalization 'absolute))
(with-store store
;; Set the build options before we do anything else.
(set-build-options-from-command-line store opts)
(parameterize ((current-terminal-columns (terminal-columns))
(current-build-output-port
(if quiet?
(%make-void-port "w")
(build-event-output-port
(build-status-updater print-build-event)))))
(let* ((mode (assoc-ref opts 'build-mode))
(drv (options->derivations store opts))
(urls (map (cut string-append <> "/log")
(if (assoc-ref opts 'substitutes?)
(or (assoc-ref opts 'substitute-urls)
;; XXX: This does not necessarily match the
;; daemon's substitute URLs.
%default-substitute-urls)
'())))
(items (filter-map (match-lambda
(('argument . (? store-path? file))
file)
(_ #f))
opts))
(roots (filter-map (match-lambda
(('gc-root . root) root)
(_ #f))
opts)))
(unless (or (assoc-ref opts 'log-file?)
(assoc-ref opts 'derivations-only?))
(show-what-to-build store drv
#:use-substitutes?
(assoc-ref opts 'substitutes?)
#:dry-run? (assoc-ref opts 'dry-run?)
#:mode mode))
(cond ((assoc-ref opts 'log-file?)
(for-each (cut show-build-log store <> urls)
(delete-duplicates
(append (map derivation-file-name drv)
items))))
((assoc-ref opts 'derivations-only?)
(format #t "~{~a~%~}" (map derivation-file-name drv))
(for-each (cut register-root store <> <>)
(map (compose list derivation-file-name) drv)
roots))
((not (assoc-ref opts 'dry-run?))
(and (build-derivations store drv mode)
(for-each show-derivation-outputs drv)
(for-each (cut register-root store <> <>)
(map (lambda (drv)
(map cdr
(derivation->output-paths drv)))
drv)
roots))))))))))