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Automatically trim lines wider than the window width

This commit is contained in:
Christian Rocha 2021-01-14 17:42:02 -05:00
parent 505b826b8a
commit 1f6191c671
3 changed files with 19 additions and 1 deletions
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1
go.mod
View File

@ -5,6 +5,7 @@ go 1.13
require (
github.com/containerd/console v1.0.1
github.com/mattn/go-isatty v0.0.12
github.com/muesli/reflow v0.2.1-0.20201126184510-3bcb929042f2
github.com/muesli/termenv v0.7.2
golang.org/x/crypto v0.0.0-20201012173705-84dcc777aaee
golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634

2
go.sum
View File

@ -8,6 +8,8 @@ github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHX
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
github.com/muesli/reflow v0.2.1-0.20201126184510-3bcb929042f2 h1:+cpkcmASpeBn4qXz2tU+x+njyKe91NoHXqrJdhoDnZo=
github.com/muesli/reflow v0.2.1-0.20201126184510-3bcb929042f2/go.mod h1:qT22vjVmM9MIUeLgsVYe/Ye7eZlbv9dZjL3dVhUqLX8=
github.com/muesli/termenv v0.7.2 h1:r1raklL3uKE7rOvWgSenmEm2px+dnc33OTisZ8YR1fw=
github.com/muesli/termenv v0.7.2/go.mod h1:ct2L5N2lmix82RaY3bMWwVu/jUFc9Ule0KGDCiKYPh8=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=

17
renderer.go
View File

@ -6,6 +6,8 @@ import (
"strings"
"sync"
"time"
"github.com/muesli/reflow/truncate"
)
const (
@ -148,7 +150,20 @@ func (r *renderer) flush() {
if _, exists := r.ignoreLines[r.linesRendered]; exists {
cursorDown(out) // skip rendering for this line.
} else {
_, _ = io.WriteString(out, lines[i])
line := lines[i]
// Truncate lines wider than the width of the window to avoid
// rendering troubles. If we don't have the width of the window
// this will be ignored.
//
// Note that on Windows we can't get the width of the window
// (signal SIGWINCH is not supported), so this will be ignored.
if r.width > 0 {
line = truncate.String(line, uint(r.width))
}
_, _ = io.WriteString(out, line)
if i != len(lines)-1 {
_, _ = io.WriteString(out, "\r\n")
}