;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès ;;; Copyright © 2013 Nikita Karetnikov ;;; Copyright © 2013 Mark H Weaver ;;; Copyright © 2014 Alex Kost ;;; ;;; 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 . (define-module (guix scripts package) #:use-module (guix ui) #:use-module (guix store) #:use-module (guix derivations) #:use-module (guix packages) #:use-module (guix profiles) #:use-module (guix monads) #:use-module (guix utils) #:use-module (guix config) #:use-module (guix scripts build) #:use-module ((guix build utils) #:select (directory-exists? mkdir-p search-path-as-list)) #:use-module (ice-9 format) #:use-module (ice-9 match) #:use-module (ice-9 regex) #:use-module (ice-9 vlist) #:use-module (srfi srfi-1) #:use-module (srfi srfi-11) #:use-module (srfi srfi-19) #:use-module (srfi srfi-26) #:use-module (srfi srfi-34) #:use-module (srfi srfi-35) #:use-module (srfi srfi-37) #:use-module (gnu packages) #:use-module (gnu packages base) #:use-module (gnu packages guile) #:use-module ((gnu packages bootstrap) #:select (%bootstrap-guile)) #:export (specification->package+output switch-to-generation switch-to-previous-generation roll-back delete-generation delete-generations guix-package)) (define %store (make-parameter #f)) ;;; ;;; Profiles. ;;; (define %user-profile-directory (and=> (getenv "HOME") (cut string-append <> "/.guix-profile"))) (define %profile-directory (string-append %state-directory "/profiles/" (or (and=> (or (getenv "USER") (getenv "LOGNAME")) (cut string-append "per-user/" <>)) "default"))) (define %current-profile ;; Call it `guix-profile', not `profile', to allow Guix profiles to ;; coexist with Nix profiles. (string-append %profile-directory "/guix-profile")) (define (canonicalize-profile profile) "If PROFILE is %USER-PROFILE-DIRECTORY, return %CURRENT-PROFILE. Otherwise return PROFILE unchanged. The goal is to treat '-p ~/.guix-profile' as if '-p' was omitted." ; see (if (and %user-profile-directory (string=? (canonicalize-path (dirname profile)) (dirname %user-profile-directory)) (string=? (basename profile) (basename %user-profile-directory))) %current-profile profile)) (define (link-to-empty-profile store generation) "Link GENERATION, a string, to the empty profile." (let* ((drv (run-with-store store (profile-derivation (manifest '())))) (prof (derivation->output-path drv "out"))) (when (not (build-derivations store (list drv))) (leave (_ "failed to build the empty profile~%"))) (switch-symlinks generation prof))) (define (switch-to-generation profile number) "Atomically switch PROFILE to the generation NUMBER." (let ((current (generation-number profile)) (generation (generation-file-name profile number))) (cond ((not (file-exists? profile)) (raise (condition (&profile-not-found-error (profile profile))))) ((not (file-exists? generation)) (raise (condition (&missing-generation-error (profile profile) (generation number))))) (else (format #t (_ "switching from generation ~a to ~a~%") current number) (switch-symlinks profile generation))))) (define (switch-to-previous-generation profile) "Atomically switch PROFILE to the previous generation." (switch-to-generation profile (previous-generation-number profile))) (define (roll-back store profile) "Roll back to the previous generation of PROFILE." (let* ((number (generation-number profile)) (previous-number (previous-generation-number profile number)) (previous-generation (generation-file-name profile previous-number))) (cond ((not (file-exists? profile)) ; invalid profile (raise (condition (&profile-not-found-error (profile profile))))) ((zero? number) ; empty profile (format (current-error-port) (_ "nothing to do: already at the empty profile~%"))) ((or (zero? previous-number) ; going to emptiness (not (file-exists? previous-generation))) (link-to-empty-profile store previous-generation) (switch-to-previous-generation profile)) (else (switch-to-previous-generation profile))))) ; anything else (define (delete-generation store profile number) "Delete generation with NUMBER from PROFILE." (define (display-and-delete) (let ((generation (generation-file-name profile number))) (format #t (_ "deleting ~a~%") generation) (delete-file generation))) (let* ((current-number (generation-number profile)) (previous-number (previous-generation-number profile number)) (previous-generation (generation-file-name profile previous-number))) (cond ((zero? number)) ; do not delete generation 0 ((and (= number current-number) (not (file-exists? previous-generation))) (link-to-empty-profile store previous-generation) (switch-to-previous-generation profile) (display-and-delete)) ((= number current-number) (roll-back store profile) (display-and-delete)) (else (display-and-delete))))) (define (delete-generations store profile generations) "Delete GENERATIONS from PROFILE. GENERATIONS is a list of generation numbers." (for-each (cut delete-generation store profile <>) generations)) (define* (matching-generations str #:optional (profile %current-profile) #:key (duration-relation <=)) "Return the list of available generations matching a pattern in STR. See 'string->generations' and 'string->duration' for the list of valid patterns. When STR is a duration pattern, return all the generations whose ctime has DURATION-RELATION with the current time." (define (valid-generations lst) (define (valid-generation? n) (any (cut = n <>) (generation-numbers profile))) (fold-right (lambda (x acc) (if (valid-generation? x) (cons x acc) acc)) '() lst)) (define (filter-generations generations) (match generations (() '()) (('>= n) (drop-while (cut > n <>) (generation-numbers profile))) (('<= n) (valid-generations (iota n 1))) ((lst ..1) (valid-generations lst)) (_ #f))) (define (filter-by-duration duration) (define (time-at-midnight time) ;; Return TIME at midnight by setting nanoseconds, seconds, minutes, and ;; hours to zeros. (let ((d (time-utc->date time))) (date->time-utc (make-date 0 0 0 0 (date-day d) (date-month d) (date-year d) (date-zone-offset d))))) (define generation-ctime-alist (map (lambda (number) (cons number (time-second (time-at-midnight (generation-time profile number))))) (generation-numbers profile))) (match duration (#f #f) (res (let ((s (time-second (subtract-duration (time-at-midnight (current-time)) duration)))) (delete #f (map (lambda (x) (and (duration-relation s (cdr x)) (first x))) generation-ctime-alist)))))) (cond ((string->generations str) => filter-generations) ((string->duration str) => filter-by-duration) (else #f))) ;;; ;;; Package specifications. ;;; (define (find-packages-by-description rx) "Return the list of packages whose name, synopsis, or description matches RX." (sort (fold-packages (lambda (package result) (define matches? (cut regexp-exec rx <>)) (if (or (matches? (package-name package)) (and=> (package-synopsis package) (compose matches? P_)) (and=> (package-description package) (compose matches? P_))) (cons package result) result)) '()) (lambda (p1 p2) (stringpackage+output spec #:optional (output "out")) "Return the package and output specified by SPEC, or #f and #f; SPEC may optionally contain a version number and an output name, as in these examples: guile guile-2.0.9 guile:debug guile-2.0.9:debug If SPEC does not specify a version number, return the preferred newest version; if SPEC does not specify an output, return OUTPUT." (define (ensure-output p sub-drv) (if (member sub-drv (package-outputs p)) sub-drv (leave (_ "package `~a' lacks output `~a'~%") (package-full-name p) sub-drv))) (let-values (((name version sub-drv) (package-specification->name+version+output spec output))) (match (find-best-packages-by-name name version) ((p) (values p (ensure-output p sub-drv))) ((p p* ...) (warning (_ "ambiguous package specification `~a'~%") spec) (warning (_ "choosing ~a from ~a~%") (package-full-name p) (location->string (package-location p))) (values p (ensure-output p sub-drv))) (() (leave (_ "~a: package not found~%") spec))))) (define (upgradeable? name current-version current-path) "Return #t if there's a version of package NAME newer than CURRENT-VERSION, or if the newest available version is equal to CURRENT-VERSION but would have an output path different than CURRENT-PATH." (match (vhash-assoc name (find-newest-available-packages)) ((_ candidate-version pkg . rest) (case (version-compare candidate-version current-version) ((>) #t) ((<) #f) ((=) (let ((candidate-path (derivation->output-path (package-derivation (%store) pkg)))) (not (string=? current-path candidate-path)))))) (#f #f))) ;;; ;;; Search paths. ;;; (define-syntax-rule (with-null-error-port exp) "Evaluate EXP with the error port pointing to the bit bucket." (with-error-to-port (%make-void-port "w") (lambda () exp))) (define* (search-path-environment-variables entries profile #:optional (getenv getenv)) "Return environment variable definitions that may be needed for the use of ENTRIES, a list of manifest entries, in PROFILE. Use GETENV to determine the current settings and report only settings not already effective." ;; Prefer ~/.guix-profile to the real profile directory name. (let ((profile (if (and %user-profile-directory (false-if-exception (string=? (readlink %user-profile-directory) profile))) %user-profile-directory profile))) ;; The search path info is not stored in the manifest. Thus, we infer the ;; search paths from same-named packages found in the distro. (define manifest-entry->package (match-lambda (($ name version) ;; Use 'find-best-packages-by-name' and not 'find-packages-by-name'; ;; the former traverses the module tree only once and then allows for ;; efficient access via a vhash. (match (find-best-packages-by-name name version) ((p _ ...) p) (_ (match (find-best-packages-by-name name #f) ((p _ ...) p) (_ #f))))))) (define search-path-definition (match-lambda (($ variable files separator type pattern) (let* ((values (or (and=> (getenv variable) (cut string-tokenize* <> separator)) '())) ;; Add a trailing slash to force symlinks to be treated as ;; directories when 'find-files' traverses them. (files (if pattern (map (cut string-append <> "/") files) files)) ;; XXX: Silence 'find-files' when it stumbles upon non-existent ;; directories (see ;; .) (path (with-null-error-port (search-path-as-list files (list profile) #:type type #:pattern pattern)))) (if (every (cut member <> values) path) #f (format #f "export ~a=\"~a\"" variable (string-join path separator))))))) (let* ((packages (filter-map manifest-entry->package entries)) (search-paths (delete-duplicates (append-map package-native-search-paths packages)))) (filter-map search-path-definition search-paths)))) (define (display-search-paths entries profile) "Display the search path environment variables that may need to be set for ENTRIES, a list of manifest entries, in the context of PROFILE." (let ((settings (search-path-environment-variables entries profile))) (unless (null? settings) (format #t (_ "The following environment variable definitions may be needed:~%")) (format #t "~{ ~a~%~}" settings)))) ;;; ;;; Command-line options. ;;; (define %default-options ;; Alist of default option values. `((profile . ,%current-profile) (max-silent-time . 3600) (verbosity . 0) (substitutes? . #t))) (define (show-help) (display (_ "Usage: guix package [OPTION]... PACKAGES... Install, remove, or upgrade PACKAGES in a single transaction.\n")) (display (_ " -i, --install=PACKAGE install PACKAGE")) (display (_ " -e, --install-from-expression=EXP install the package EXP evaluates to")) (display (_ " -r, --remove=PACKAGE remove PACKAGE")) (display (_ " -u, --upgrade[=REGEXP] upgrade all the installed packages matching REGEXP")) (display (_ " --roll-back roll back to the previous generation")) (display (_ " --search-paths display needed environment variable definitions")) (display (_ " -l, --list-generations[=PATTERN] list generations matching PATTERN")) (display (_ " -d, --delete-generations[=PATTERN] delete generations matching PATTERN")) (display (_ " -S, --switch-generation=PATTERN switch to a generation matching PATTERN")) (display (_ " -p, --profile=PROFILE use PROFILE instead of the user's default profile")) (newline) (display (_ " --bootstrap use the bootstrap Guile to build the profile")) (display (_ " --verbose produce verbose output")) (newline) (display (_ " -s, --search=REGEXP search in synopsis and description using REGEXP")) (display (_ " -I, --list-installed[=REGEXP] list installed packages matching REGEXP")) (display (_ " -A, --list-available[=REGEXP] list available packages matching REGEXP")) (display (_ " --show=PACKAGE show details about PACKAGE")) (newline) (show-build-options-help) (newline) (display (_ " -h, --help display this help and exit")) (display (_ " -V, --version display version information and exit")) (newline) (show-bug-report-information)) (define %options ;; Specification 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 package"))) (option '(#\i "install") #f #t (lambda (opt name arg result arg-handler) (let arg-handler ((arg arg) (result result)) (values (if arg (alist-cons 'install arg result) result) arg-handler)))) (option '(#\e "install-from-expression") #t #f (lambda (opt name arg result arg-handler) (values (alist-cons 'install (read/eval-package-expression arg) result) #f))) (option '(#\r "remove") #f #t (lambda (opt name arg result arg-handler) (let arg-handler ((arg arg) (result result)) (values (if arg (alist-cons 'remove arg result) result) arg-handler)))) (option '(#\u "upgrade") #f #t (lambda (opt name arg result arg-handler) (let arg-handler ((arg arg) (result result)) (values (alist-cons 'upgrade arg ;; Delete any prior "upgrade all" ;; command, or else "--upgrade gcc" ;; would upgrade everything. (delete '(upgrade . #f) result)) arg-handler)))) (option '("roll-back") #f #f (lambda (opt name arg result arg-handler) (values (alist-cons 'roll-back? #t result) #f))) (option '(#\l "list-generations") #f #t (lambda (opt name arg result arg-handler) (values (cons `(query list-generations ,(or arg "")) result) #f))) (option '(#\d "delete-generations") #f #t (lambda (opt name arg result arg-handler) (values (alist-cons 'delete-generations (or arg "") result) #f))) (option '(#\S "switch-generation") #t #f (lambda (opt name arg result arg-handler) (values (alist-cons 'switch-generation arg result) #f))) (option '("search-paths") #f #f (lambda (opt name arg result arg-handler) (values (cons `(query search-paths) result) #f))) (option '(#\p "profile") #t #f (lambda (opt name arg result arg-handler) (values (alist-cons 'profile (canonicalize-profile arg) (alist-delete 'profile result)) #f))) (option '(#\n "dry-run") #f #f (lambda (opt name arg result arg-handler) (values (alist-cons 'dry-run? #t result) #f))) (option '("bootstrap") #f #f (lambda (opt name arg result arg-handler) (values (alist-cons 'bootstrap? #t result) #f))) (option '("verbose") #f #f (lambda (opt name arg result arg-handler) (values (alist-cons 'verbose? #t result) #f))) (option '(#\s "search") #t #f (lambda (opt name arg result arg-handler) (values (cons `(query search ,(or arg "")) result) #f))) (option '(#\I "list-installed") #f #t (lambda (opt name arg result arg-handler) (values (cons `(query list-installed ,(or arg "")) result) #f))) (option '(#\A "list-available") #f #t (lambda (opt name arg result arg-handler) (values (cons `(query list-available ,(or arg "")) result) #f))) (option '("show") #t #t (lambda (opt name arg result arg-handler) (values (cons `(query show ,arg) result) #f))) %standard-build-options)) (define (options->installable opts manifest) "Given MANIFEST, the current manifest, and OPTS, the result of 'args-fold', return the new list of manifest entries." (define (package->manifest-entry* package output) (check-package-freshness package) ;; When given a package via `-e', install the first of its ;; outputs (XXX). (package->manifest-entry package output)) (define upgrade-regexps (filter-map (match-lambda (('upgrade . regexp) (make-regexp (or regexp ""))) (_ #f)) opts)) (define packages-to-upgrade (match upgrade-regexps (() '()) ((_ ...) (filter-map (match-lambda (($ name version output path _) (and (any (cut regexp-exec <> name) upgrade-regexps) (upgradeable? name version path) (let ((output (or output "out"))) (call-with-values (lambda () (specification->package+output name output)) list)))) (_ #f)) (manifest-entries manifest))))) (define to-upgrade (map (match-lambda ((package output) (package->manifest-entry* package output))) packages-to-upgrade)) (define packages-to-install (filter-map (match-lambda (('install . (? package? p)) (list p "out")) (('install . (? string? spec)) (and (not (store-path? spec)) (let-values (((package output) (specification->package+output spec))) (and package (list package output))))) (_ #f)) opts)) (define to-install (append (map (match-lambda ((package output) (package->manifest-entry* package output))) packages-to-install) (filter-map (match-lambda (('install . (? package?)) #f) (('install . (? store-path? path)) (let-values (((name version) (package-name->name+version (store-path-package-name path)))) (manifest-entry (name name) (version version) (output #f) (item path)))) (_ #f)) opts))) (append to-upgrade to-install)) (define (options->removable options manifest) "Given options, return the list of manifest patterns of packages to be removed from MANIFEST." (filter-map (match-lambda (('remove . spec) (call-with-values (lambda () (package-specification->name+version+output spec)) (lambda (name version output) (manifest-pattern (name name) (version version) (output output))))) (_ #f)) options)) (define (register-gc-root store profile) "Register PROFILE, a profile generation symlink, as a GC root, unless it doesn't need it." (define absolute ;; We must pass the daemon an absolute file name for PROFILE. However, we ;; cannot use (canonicalize-path profile) because that would return us the ;; target of PROFILE in the store; using a store item as an indirect root ;; would mean that said store item will always remain live, which is not ;; what we want here. (if (string-prefix? "/" profile) profile (string-append (getcwd) "/" profile))) (add-indirect-root store absolute)) (define (readlink* file) "Call 'readlink' until the result is not a symlink." (catch 'system-error (lambda () (readlink* (readlink file))) (lambda args (if (= EINVAL (system-error-errno args)) file (apply throw args))))) ;;; ;;; Entry point. ;;; (define (guix-package . args) (define (handle-argument arg result arg-handler) ;; Process non-option argument ARG by calling back ARG-HANDLER. (if arg-handler (arg-handler arg result) (leave (_ "~A: extraneous argument~%") arg))) (define (ensure-default-profile) ;; Ensure the default profile symlink and directory exist and are ;; writable. (define (rtfm) (format (current-error-port) (_ "Try \"info '(guix) Invoking guix package'\" for \ more information.~%")) (exit 1)) ;; Create ~/.guix-profile if it doesn't exist yet. (when (and %user-profile-directory %current-profile (not (false-if-exception (lstat %user-profile-directory)))) (symlink %current-profile %user-profile-directory)) (let ((s (stat %profile-directory #f))) ;; Attempt to create /…/profiles/per-user/$USER if needed. (unless (and s (eq? 'directory (stat:type s))) (catch 'system-error (lambda () (mkdir-p %profile-directory)) (lambda args ;; Often, we cannot create %PROFILE-DIRECTORY because its ;; parent directory is root-owned and we're running ;; unprivileged. (format (current-error-port) (_ "error: while creating directory `~a': ~a~%") %profile-directory (strerror (system-error-errno args))) (format (current-error-port) (_ "Please create the `~a' directory, with you as the owner.~%") %profile-directory) (rtfm)))) ;; Bail out if it's not owned by the user. (unless (or (not s) (= (stat:uid s) (getuid))) (format (current-error-port) (_ "error: directory `~a' is not owned by you~%") %profile-directory) (format (current-error-port) (_ "Please change the owner of `~a' to user ~s.~%") %profile-directory (or (getenv "USER") (getenv "LOGNAME") (getuid))) (rtfm)))) (define (process-actions opts) ;; Process any install/remove/upgrade action from OPTS. (define dry-run? (assoc-ref opts 'dry-run?)) (define profile (assoc-ref opts 'profile)) (define current-generation-number (generation-number profile)) ;; First roll back if asked to. (cond ((and (assoc-ref opts 'roll-back?) (not dry-run?)) (roll-back (%store) profile) (process-actions (alist-delete 'roll-back? opts))) ((and (assoc-ref opts 'switch-generation) (not dry-run?)) (for-each (match-lambda (('switch-generation . pattern) (let* ((number (string->number pattern)) (number (and number (case (string-ref pattern 0) ((#\+ #\-) (relative-generation profile number)) (else number))))) (if number (switch-to-generation profile number) (leave (_ "cannot switch to generation '~a'~%") pattern))) (process-actions (alist-delete 'switch-generation opts))) (_ #f)) opts)) ((and (assoc-ref opts 'delete-generations) (not dry-run?)) (for-each (match-lambda (('delete-generations . pattern) (cond ((not (file-exists? profile)) ; XXX: race condition (raise (condition (&profile-not-found-error (profile profile))))) ((string-null? pattern) (delete-generations (%store) profile (delete current-generation-number (profile-generations profile)))) ;; Do not delete the zeroth generation. ((equal? 0 (string->number pattern)) (exit 0)) ;; If PATTERN is a duration, match generations that are ;; older than the specified duration. ((matching-generations pattern profile #:duration-relation >) => (lambda (numbers) (if (null-list? numbers) (exit 1) (delete-generations (%store) profile numbers)))) (else (leave (_ "invalid syntax: ~a~%") pattern))) (process-actions (alist-delete 'delete-generations opts))) (_ #f)) opts)) (else (let* ((manifest (profile-manifest profile)) (install (options->installable opts manifest)) (remove (options->removable opts manifest)) (bootstrap? (assoc-ref opts 'bootstrap?)) (transaction (manifest-transaction (install install) (remove remove))) (new (manifest-perform-transaction manifest transaction))) (when (equal? profile %current-profile) (ensure-default-profile)) (unless (and (null? install) (null? remove)) (let* ((prof-drv (run-with-store (%store) (profile-derivation new #:info-dir? (not bootstrap?) #:ca-certificate-bundle? (not bootstrap?)))) (prof (derivation->output-path prof-drv))) (show-manifest-transaction (%store) manifest transaction #:dry-run? dry-run?) (show-what-to-build (%store) (list prof-drv) #:use-substitutes? (assoc-ref opts 'substitutes?) #:dry-run? dry-run?) (cond (dry-run? #t) ((and (file-exists? profile) (and=> (readlink* profile) (cut string=? prof <>))) (format (current-error-port) (_ "nothing to be done~%"))) (else (let* ((number (generation-number profile)) ;; Always use NUMBER + 1 for the new profile, ;; possibly overwriting a "previous future ;; generation". (name (generation-file-name profile (+ 1 number)))) (and (build-derivations (%store) (list prof-drv)) (let* ((entries (manifest-entries new)) (count (length entries))) (switch-symlinks name prof) (switch-symlinks profile name) (unless (string=? profile %current-profile) (register-gc-root (%store) name)) (format #t (N_ "~a package in profile~%" "~a packages in profile~%" count) count) (display-search-paths entries profile)))))))))))) (define (process-query opts) ;; Process any query specified by OPTS. Return #t when a query was ;; actually processed, #f otherwise. (let ((profile (assoc-ref opts 'profile))) (match (assoc-ref opts 'query) (('list-generations pattern) (define (list-generation number) (unless (zero? number) (let ((header (format #f (_ "Generation ~a\t~a") number (date->string (time-utc->date (generation-time profile number)) "~b ~d ~Y ~T"))) (current (generation-number profile))) (if (= number current) (format #t (_ "~a\t(current)~%") header) (format #t "~a~%" header))) (for-each (match-lambda (($ name version output location _) (format #t " ~a\t~a\t~a\t~a~%" name version output location))) ;; Show most recently installed packages last. (reverse (manifest-entries (profile-manifest (generation-file-name profile number))))) (newline))) (cond ((not (file-exists? profile)) ; XXX: race condition (raise (condition (&profile-not-found-error (profile profile))))) ((string-null? pattern) (for-each list-generation (profile-generations profile))) ((matching-generations pattern profile) => (lambda (numbers) (if (null-list? numbers) (exit 1) (leave-on-EPIPE (for-each list-generation numbers))))) (else (leave (_ "invalid syntax: ~a~%") pattern))) #t) (('list-installed regexp) (let* ((regexp (and regexp (make-regexp regexp))) (manifest (profile-manifest profile)) (installed (manifest-entries manifest))) (leave-on-EPIPE (for-each (match-lambda (($ name version output path _) (when (or (not regexp) (regexp-exec regexp name)) (format #t "~a\t~a\t~a\t~a~%" name (or version "?") output path)))) ;; Show most recently installed packages last. (reverse installed))) #t)) (('list-available regexp) (let* ((regexp (and regexp (make-regexp regexp))) (available (fold-packages (lambda (p r) (let ((n (package-name p))) (if regexp (if (regexp-exec regexp n) (cons p r) r) (cons p r)))) '()))) (leave-on-EPIPE (for-each (lambda (p) (format #t "~a\t~a\t~a\t~a~%" (package-name p) (package-version p) (string-join (package-outputs p) ",") (location->string (package-location p)))) (sort available (lambda (p1 p2) (stringrecutils <> (current-output-port)) (find-packages-by-description regexp))) #t)) (('show requested-name) (let-values (((name version) (package-name->name+version requested-name))) (leave-on-EPIPE (for-each (cute package->recutils <> (current-output-port)) (find-packages-by-name name version))) #t)) (('search-paths) (let* ((manifest (profile-manifest profile)) (entries (manifest-entries manifest)) (settings (search-path-environment-variables entries profile (const #f)))) (format #t "~{~a~%~}" settings) #t)) (_ #f)))) (let ((opts (parse-command-line args %options (list %default-options #f) #:argument-handler handle-argument))) (with-error-handling (or (process-query opts) (parameterize ((%store (open-connection))) (set-build-options-from-command-line (%store) opts) (parameterize ((%guile-for-build (package-derivation (%store) (if (assoc-ref opts 'bootstrap?) %bootstrap-guile (canonical-package guile-2.0))))) (process-actions opts)))))))