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[bug#29509] [PATCH 1/6] progress: Factorize erase-in-line.
From: |
Ludovic Courtès |
Subject: |
[bug#29509] [PATCH 1/6] progress: Factorize erase-in-line. |
Date: |
Thu, 30 Nov 2017 14:56:57 +0100 |
* guix/progress.scm (erase-in-line): New procedure.
(progress-reporter/file): Use it.
---
guix/progress.scm | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/guix/progress.scm b/guix/progress.scm
index beca2c22a..1993c7403 100644
--- a/guix/progress.scm
+++ b/guix/progress.scm
@@ -153,6 +153,11 @@ width of the bar is BAR-WIDTH."
(make-string filled #\#)
(make-string empty #\space))))
+(define (erase-in-line port)
+ "Write an ANSI erase-in-line sequence to PORT to erase the whole line and
+move the cursor to the beginning of the line."
+ (display "\r\x1b[K" port))
+
(define* (progress-reporter/file file size
#:optional (log-port (current-output-port))
#:key (abbreviation basename))
@@ -176,7 +181,7 @@ ABBREVIATION used to shorten FILE for display."
(byte-count->string throughput)
(seconds->string elapsed)
(progress-bar %) %)))
- (display "\r\x1b[K" log-port)
+ (erase-in-line log-port)
(display (string-pad-middle left right
(current-terminal-columns))
log-port)
@@ -188,7 +193,7 @@ ABBREVIATION used to shorten FILE for display."
(byte-count->string throughput)
(seconds->string elapsed)
(byte-count->string transferred))))
- (display "\r\x1b[K" log-port)
+ (erase-in-line log-port)
(display (string-pad-middle left right
(current-terminal-columns))
log-port)
--
2.15.0
- [bug#29509] [PATCH 0/6] Display progress bar in 'guix system init', Ludovic Courtès, 2017/11/30
- [bug#29509] [PATCH 1/6] progress: Factorize erase-in-line.,
Ludovic Courtès <=
- [bug#29509] [PATCH 2/6] progress: 'progress-bar' accounts for brackets., Ludovic Courtès, 2017/11/30
- [bug#29509] [PATCH 6/6] guix system: 'init' displays a progress bar while copying., Ludovic Courtès, 2017/11/30
- [bug#29509] [PATCH 3/6] progress: Add 'progress-reporter/bar'., Ludovic Courtès, 2017/11/30
- [bug#29509] [PATCH 4/6] weather: Use (guix progress) for progress report., Ludovic Courtès, 2017/11/30
- [bug#29509] [PATCH 5/6] guix system: Simplify closure copy., Ludovic Courtès, 2017/11/30