@@ -37,7 +37,12 @@ (define-module (gnu installer utils)
run-command
syslog-port
+ %syslog-line-hook
syslog
+ installer-log-port
+ %installer-log-line-hook
+ %default-installer-line-hooks
+ installer-log-line
call-with-time
let/time
@@ -142,6 +147,9 @@ (define syslog-port
(set! port (open-syslog-port)))
(or port (%make-void-port "w")))))
+(define (%syslog-line-hook line)
+ (format (syslog-port) "installer[~d]: ~a~%" (getpid) line))
+
(define-syntax syslog
(lambda (s)
"Like 'format', but write to syslog."
@@ -152,6 +160,43 @@ (define-syntax syslog
(syntax->datum #'fmt))))
#'(format (syslog-port) fmt (getpid) args ...))))))
+(define (open-new-log-port)
+ (define now (localtime (time-second (current-time))))
+ (define filename
+ (format #f "/tmp/installer.~a.log"
+ (strftime "%F.%T" now)))
+ (open filename (logior O_RDWR
+ O_CREAT)))
+
+(define installer-log-port
+ (let ((port #f))
+ (lambda ()
+ "Return an input and output port to the installer log."
+ (unless port
+ (set! port (open-new-log-port)))
+ port)))
+
+(define (%installer-log-line-hook line)
+ (format (installer-log-port) "~a~%" line))
+
+(define (%display-line-hook line)
+ (display line)
+ (newline))
+
+(define %default-installer-line-hooks
+ (list %syslog-line-hook
+ %installer-log-line-hook))
+
+(define-syntax installer-log-line
+ (lambda (s)
+ "Like 'format', but uses the default line hooks, and only formats one line."
+ (syntax-case s ()
+ ((_ fmt args ...)
+ (string? (syntax->datum #'fmt))
+ #'(let ((formatted (format #f fmt args ...)))
+ (for-each (lambda (f) (f formatted))
+ %default-installer-line-hooks))))))
+
;;;
;;; Client protocol.