04/07: progress: 'progress-bar' accounts for brackets.

[Ludovic Courtès]

civodul pushed a commit to branch wip-pull-reload
in repository guix.

commit 0da85e7e5d115d672825199e3c7cf709b34008e9
Author: Ludovic Courtès <address@hidden>
Date:   Wed Nov 22 14:36:20 2017 +0100

    progress: 'progress-bar' accounts for brackets.
    
    * guix/progress.scm (progress-bar): Subtract 2 to BAR-WIDTH to account
    for brackets.
---
 guix/progress.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/guix/progress.scm b/guix/progress.scm
index 1993c74..ba79442 100644
--- a/guix/progress.scm
+++ b/guix/progress.scm
@@ -146,7 +146,8 @@ INTERVAL (a time-duration object), otherwise does nothing 
and returns #f."
 (define* (progress-bar % #:optional (bar-width 20))
   "Return % as a string representing an ASCII-art progress bar.  The total
 width of the bar is BAR-WIDTH."
-  (let* ((fraction (/ % 100))
+  (let* ((bar-width (max 3 (- bar-width 2)))
+         (fraction (/ % 100))
          (filled   (inexact->exact (floor (* fraction bar-width))))
          (empty    (- bar-width filled)))
     (format #f "[~a~a]"