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curl: progress bar refresh, get width using ioctl()

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Get screen width from the environment variable COLUMNS first, if set. If
not, use ioctl(). If nether works, assume 79.

Closes #2242

The "refresh" is for the -# output when no total transfer size is
known. It will now only use a single updated line even for this case:

The "-=O=-" ship moves when data is transferred. The four flying
"hashes" move (on a sine wave) on each refresh, independent of data.
This commit is contained in:
Daniel Stenberg 2018-01-16 11:46:03 +01:00
parent 9d82cde7b2
commit 993dd5651a
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3 changed files with 95 additions and 21 deletions
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tests/runtests.pl
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@ -6,7 +6,7 @@
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
# Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
@ -340,6 +340,7 @@ $ENV{'CURL_MEMDEBUG'} = $memdump;
$ENV{'CURL_ENTROPY'}="12345678";
$ENV{'CURL_FORCETIME'}=1; # for debug NTLM magic
$ENV{'HOME'}=$pwd;
$ENV{'COLUMNS'}=79; # screen width!
sub catch_zap {
my $signame = shift;