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ui: Improve error reporting for 'read/eval'. 

The effect is visible on commands like:

  guix build -e '(+ 2 "foo")'
  guix build -e '()'

* guix/ui.scm (read/eval): Change handler to properly report syntax errors and
  use 'display-error' for other errors.
This commit is contained in:
Ludovic Courtès 2015-05-26 22:38:17 +02:00
parent cdb5b075d5
commit 41766807d0
1 changed files with 8 additions and 2 deletions
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10
guix/ui.scm
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@ -446,8 +446,14 @@ interpreted."
(lambda () (lambda ()
(eval exp (force %guix-user-module))) (eval exp (force %guix-user-module)))
(lambda args (lambda args
(leave (_ "failed to evaluate expression `~a': ~s~%") (report-error (_ "failed to evaluate expression '~a':~%") exp)
exp args))))) (match args
(('syntax-error proc message properties form . rest)
(report-error (_ "syntax error: ~a~%") message))
((error args ...)
(apply display-error #f (current-error-port) args))
(what? #f))
(exit 1)))))
(define (read/eval-package-expression str) (define (read/eval-package-expression str)
"Read and evaluate STR and return the package it refers to, or exit an "Read and evaluate STR and return the package it refers to, or exit an