mirror of
https://github.com/tmux/tmux.git
synced 2026-10-06 17:49:52 +00:00
124 lines
3.0 KiB
Bash
Executable File
124 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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# A scroll held back by a synchronized update may be sent to all clients while
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# a later client is being redrawn. An earlier client which cannot scroll the
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# pane itself must still end up with the right contents.
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PATH=/bin:/usr/bin
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TERM=screen
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LC_ALL=C.UTF-8
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export PATH TERM LC_ALL
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[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
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DIR=$(mktemp -d) || exit 1
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TMUX_TMPDIR=$DIR
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export TMUX_TMPDIR
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INNER="$TEST_TMUX -Li$$ -f/dev/null"
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OUTER="$TEST_TMUX -Lo$$ -f/dev/null"
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CONTROL=$DIR/control
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EMITTER=$DIR/emitter.pl
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fail()
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{
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echo "$*" >&2
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exit 1
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}
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cleanup()
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{
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$OUTER kill-server 2>/dev/null
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$INNER kill-server 2>/dev/null
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rm -rf "$DIR"
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}
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trap cleanup 0 1 15
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wait_for_file()
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{
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i=0
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while [ "$i" -lt 50 ] && [ ! -e "$1" ]; do
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sleep 0.1
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i=$((i + 1))
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done
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[ -e "$1" ] || fail "$2"
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}
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wait_for_clients()
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{
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i=0
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while [ "$i" -lt 50 ]; do
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n=$($INNER list-clients 2>/dev/null | wc -l)
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[ "$n" -eq "$1" ] && return 0
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sleep 0.1
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i=$((i + 1))
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done
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fail "client $1 did not attach"
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}
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cat >"$EMITTER" <<'PERL'
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use strict;
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use warnings;
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my $control = $ENV{CONTROL};
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(my $dir = $control) =~ s{/[^/]+$}{};
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my @rows;
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for my $row (1 .. 24) {
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push @rows, sprintf("INIT_ROW_%02d_", $row) . ('X' x 16);
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}
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syswrite STDOUT, "\e[H" . join("\r\n", @rows);
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open my $painted, '>', "$dir/painted" or die "$dir/painted: $!\n";
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close $painted;
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while (!-e $control) {
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select undef, undef, undef, 0.01;
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}
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# Start a synchronized update and scroll, but do not end it.
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syswrite STDOUT, "\e[?2026h\e[24;1H\r\nSCROLLED_LINE_";
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open my $scrolled, '>', "$dir/scrolled" or die "$dir/scrolled: $!\n";
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close $scrolled;
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select undef, undef, undef, 3;
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PERL
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$INNER new-session -d -s inner -x 80 -y 24 \
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"CONTROL='$CONTROL' perl '$EMITTER'" || exit 1
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$INNER set-option -g status off || exit 1
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$INNER set-option -g window-size manual || exit 1
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$INNER set-option -as terminal-features '*:sync' || exit 1
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# The pane is not full width, so clients cannot scroll it.
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$INNER split-window -h -d -t inner:0.0 'sleep 30' || exit 1
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for name in a b; do
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$OUTER new-session -d -s $name -x 80 -y 24 \
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"$TEST_TMUX -Li$$ -f/dev/null attach-session -t inner" || exit 1
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$OUTER set-option -t $name status off || exit 1
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if [ "$name" = a ]; then
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wait_for_clients 1
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fi
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done
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$OUTER set-option -g window-size manual || exit 1
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wait_for_clients 2
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B=$($OUTER display-message -p -t b: '#{pane_tty}') || exit 1
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wait_for_file "$DIR/painted" "application did not paint"
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sleep 1
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: >"$CONTROL"
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wait_for_file "$DIR/scrolled" "application did not scroll"
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sleep 0.2
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# Redraw only the second client while the update is still in progress.
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$INNER refresh-client -t "$B" || exit 1
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sleep 1
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$OUTER capture-pane -p -t a: >"$DIR/a" || exit 1
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$OUTER capture-pane -p -t b: >"$DIR/b" || exit 1
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sed -n 1p "$DIR/b" | grep -q '^INIT_ROW_02_' ||
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fail "second client not scrolled"
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sed -n 24p "$DIR/b" | grep -q '^SCROLLED_LINE_' ||
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fail "second client missing scrolled line"
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cmp -s "$DIR/a" "$DIR/b" || fail "first client differs from second client"
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exit 0
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