diff options
Diffstat (limited to 'guix/ui.scm')
| -rw-r--r-- | guix/ui.scm | 60 |
1 files changed, 23 insertions, 37 deletions
diff --git a/guix/ui.scm b/guix/ui.scm index 05b3f5f84c..d3e01f846d 100644 --- a/guix/ui.scm +++ b/guix/ui.scm @@ -196,17 +196,11 @@ information, or #f if it could not be found." (stack-ref stack 1) ;skip the 'throw' frame last)))) -(cond-expand - (guile-3 - (define-syntax-rule (without-compiler-optimizations exp) - ;; Compile with the baseline compiler (-O1), which is much less expensive - ;; than -O2. - (parameterize (((@ (system base compile) default-optimization-level) 1)) - exp))) - (else - (define-syntax-rule (without-compiler-optimizations exp) - ;; No easy way to turn off optimizations on Guile 2.2. - exp))) +(define-syntax-rule (without-compiler-optimizations exp) + ;; Compile with the baseline compiler (-O1), which is much less expensive + ;; than -O2. + (parameterize (((@ (system base compile) default-optimization-level) 1)) + exp)) (define* (load* file user-module #:key (on-error 'nothing-special)) @@ -674,22 +668,17 @@ or variants of @code{~a} in the same profile.") or remove one of them from the profile.") name1 name2))))) -(cond-expand - (guile-3 - ;; On Guile 3.0, in 'call-with-error-handling' we need to re-raise. To - ;; preserve useful backtraces in case of unhandled errors, we want that to - ;; happen before the stack has been unwound, hence 'guard*'. - (define-syntax-rule (guard* (var clauses ...) exp ...) - "This variant of SRFI-34 'guard' does not unwind the stack before +;; On Guile 3.0, in 'call-with-error-handling' we need to re-raise. To +;; preserve useful backtraces in case of unhandled errors, we want that to +;; happen before the stack has been unwound, hence 'guard*'. +(define-syntax-rule (guard* (var clauses ...) exp ...) + "This variant of SRFI-34 'guard' does not unwind the stack before evaluating the tests and bodies of CLAUSES." - (with-exception-handler - (lambda (var) - (cond clauses ... (else (raise var)))) - (lambda () exp ...) - #:unwind? #f))) - (else - (define-syntax-rule (guard* (var clauses ...) exp ...) - (guard (var clauses ...) exp ...)))) + (with-exception-handler + (lambda (var) + (cond clauses ... (else (raise var)))) + (lambda () exp ...) + #:unwind? #f)) (define (call-with-error-handling thunk) "Call THUNK within a user-friendly error handler." @@ -822,11 +811,13 @@ directories:~{ ~a~}~%") ;; Furthermore, use of 'guard*' ensures that the stack has not ;; been unwound when we re-raise, since that would otherwise show ;; useless backtraces. - ((cond-expand - (guile-3 - ((exception-predicate &exception-with-kind-and-args) c)) - (else #f)) - (raise c)) + (((exception-predicate &exception-with-kind-and-args) c) + (if (eq? 'system-error (exception-kind c)) ;EPIPE & co. + (match (exception-args c) + ((proc format-string format-args . _) + (leave (G_ "~a: ~a~%") proc + (apply format #f format-string format-args)))) + (raise c))) ((message-condition? c) ;; Normally '&message' error conditions have an i18n'd message. @@ -836,12 +827,7 @@ directories:~{ ~a~}~%") (when (fix-hint? c) (display-hint (condition-fix-hint c))) (exit 1))) - ;; Catch EPIPE and the likes. - (catch 'system-error - thunk - (lambda (key proc format-string format-args . rest) - (leave (G_ "~a: ~a~%") proc - (apply format #f format-string format-args)))))) + (thunk))) (define-syntax-rule (leave-on-EPIPE exp ...) "Run EXP... in a context where EPIPE errors are caught and lead to 'exit' |