From 1252dd325bbb71387092e9e89ff1ede8ef3f1d5f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Wed, 22 Nov 2017 14:05:35 +0100 Subject: [PATCH] progress: Factorize erase-in-line. * 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 beca2c22a6..1993c74030 100644 --- a/guix/progress.scm +++ b/guix/progress.scm @@ -153,6 +153,11 @@ (define* (progress-bar % #:optional (bar-width 20)) (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 @@ (define elapsed (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 @@ (define elapsed (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)