diff options
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/installer/utils.scm | 164 |
1 files changed, 44 insertions, 120 deletions
diff --git a/gnu/installer/utils.scm b/gnu/installer/utils.scm index d73698df15..5f8fe8ca01 100644 --- a/gnu/installer/utils.scm +++ b/gnu/installer/utils.scm @@ -22,13 +22,8 @@ #:use-module (guix build utils) #:use-module (guix i18n) #:use-module (srfi srfi-1) - #:use-module (srfi srfi-11) - #:use-module (srfi srfi-26) #:use-module (srfi srfi-34) - #:use-module (srfi srfi-34) - #:use-module (srfi srfi-35) #:use-module (ice-9 match) - #:use-module (ice-9 popen) #:use-module (ice-9 rdelim) #:use-module (ice-9 regex) #:use-module (ice-9 format) @@ -73,6 +68,50 @@ number. If no percentage is found, return #f" (and result (string->number (match:substring result 1))))) +(define* (run-command command #:key locale) + "Run COMMAND, a list of strings, in the given LOCALE. Return true if +COMMAND exited successfully, #f otherwise." + (define env (environ)) + + (define (pause) + (format #t (G_ "Press Enter to continue.~%")) + (send-to-clients '(pause)) + (environ env) ;restore environment variables + (match (select (cons (current-input-port) (current-clients)) + '() '()) + (((port _ ...) _ _) + (read-line port)))) + + (setenv "PATH" "/run/current-system/profile/bin") + + (when locale + (let ((supported? (false-if-exception + (setlocale LC_ALL locale)))) + ;; If LOCALE is not supported, then set LANGUAGE, which might at + ;; least give us translated messages. + (if supported? + (setenv "LC_ALL" locale) + (setenv "LANGUAGE" + (string-take locale + (or (string-index locale #\_) + (string-length locale))))))) + + (guard (c ((invoke-error? c) + (newline) + (format (current-error-port) + (G_ "Command failed with exit code ~a.~%") + (invoke-error-exit-status c)) + (syslog "command ~s failed with exit code ~a" + command (invoke-error-exit-status c)) + (pause) + #f)) + (syslog "running command ~s~%" command) + (apply invoke command) + (syslog "command ~s succeeded~%" command) + (newline) + (pause) + #t)) + ;;; ;;; Logging. @@ -180,118 +219,3 @@ accepting socket." (current-clients (reverse remainder)) exp) - - -;;; -;;; Run commands. -;;; - -;; XXX: This is taken from (guix build utils) and could be factorized. -(define (open-pipe-with-stderr program . args) - "Run PROGRAM with ARGS in an input pipe, but, unlike 'open-pipe*', redirect -both its standard output and standard error to the pipe. Return two value: -the pipe to read PROGRAM's data from, and the PID of the child process running -PROGRAM." - ;; 'open-pipe*' doesn't attempt to capture stderr in any way, which is why - ;; we need to roll our own. - (match (pipe) - ((input . output) - (match (primitive-fork) - (0 - (dynamic-wind - (const #t) - (lambda () - (close-port input) - (close-port (syslog-port)) - (dup2 (fileno output) 1) - (dup2 (fileno output) 2) - (apply execlp program program args)) - (lambda () - (primitive-exit 127)))) - (pid - (close-port output) - (values input pid)))))) - -(define invoke-log-port - ;; Port used by INVOKE-WITH-LOG for logging. - (make-parameter #f)) - -(define* (invoke-with-log program . args) - "Invoke PROGRAM with ARGS and log PROGRAM's standard output and standard -error to INVOKE-LOG-PORT. If PROGRAM succeeds, print nothing and return the -unspecified value; otherwise, raise a '&message' error condition with the -status code. This procedure is very similar to INVOKE/QUIET with the -noticeable difference that the program output, that can be quite heavy, is not -stored but directly sent to INVOKE-LOG-PORT if defined." - (let-values (((pipe pid) - (apply open-pipe-with-stderr program args))) - (let loop () - (match (read-line pipe) - ((? eof-object?) - (close-port pipe) - (match (waitpid pid) - ((_ . status) - (unless (zero? status) - (raise - (condition (&invoke-error - (program program) - (arguments args) - (exit-status (status:exit-val status)) - (term-signal (status:term-sig status)) - (stop-signal (status:stop-sig status))))))))) - (line - (and=> (invoke-log-port) (cut format <> "~a~%" line)) - (loop)))))) - -(define* (run-command command #:key locale) - "Run COMMAND, a list of strings, in the given LOCALE. Return true if -COMMAND exited successfully, #f otherwise." - (define env (environ)) - - (define (pause) - (format #t (G_ "Press Enter to continue.~%")) - (send-to-clients '(pause)) - (environ env) ;restore environment variables - (match (select (cons (current-input-port) (current-clients)) - '() '()) - (((port _ ...) _ _) - (read-line port)))) - - (setenv "PATH" "/run/current-system/profile/bin") - - (when locale - (let ((supported? (false-if-exception - (setlocale LC_ALL locale)))) - ;; If LOCALE is not supported, then set LANGUAGE, which might at - ;; least give us translated messages. - (if supported? - (setenv "LC_ALL" locale) - (setenv "LANGUAGE" - (string-take locale - (or (string-index locale #\_) - (string-length locale))))))) - - (guard (c ((invoke-error? c) - (newline) - (format (current-error-port) - (G_ "Command failed with exit code ~a.~%") - (invoke-error-exit-status c)) - (syslog "command ~s failed with exit code ~a" - command (invoke-error-exit-status c)) - (pause) - #f)) - (syslog "running command ~s~%" command) - ;; If there are any connected clients, assume that we are running - ;; installation tests. In that case, dump the standard and error outputs - ;; to syslog. - (let ((testing? (not (null? (current-clients))))) - (if testing? - (parameterize ((invoke-log-port (syslog-port))) - (apply invoke-with-log command)) - (apply invoke command))) - (syslog "command ~s succeeded~%" command) - (newline) - (pause) - #t)) - -;;; utils.scm ends here |