79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package tasks
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import (
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gocontext "context"
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"time"
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"github.com/containerd/console"
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/cio"
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"github.com/containerd/containerd/log"
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"github.com/pkg/errors"
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"github.com/urfave/cli"
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)
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// HandleConsoleResize resizes the console
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func HandleConsoleResize(ctx gocontext.Context, task resizer, con console.Console) error {
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// do an initial resize of the console
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size, err := con.Size()
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if err != nil {
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return err
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}
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go func() {
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prevSize := size
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for {
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time.Sleep(time.Millisecond * 250)
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size, err := con.Size()
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if err != nil {
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log.G(ctx).WithError(err).Error("get pty size")
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continue
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}
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if size.Width != prevSize.Width || size.Height != prevSize.Height {
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if err := task.Resize(ctx, uint32(size.Width), uint32(size.Height)); err != nil {
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log.G(ctx).WithError(err).Error("resize pty")
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}
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prevSize = size
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}
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}
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}()
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return nil
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}
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// NewTask creates a new task
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func NewTask(ctx gocontext.Context, client *containerd.Client, container containerd.Container, _ string, con console.Console, nullIO bool, ioOpts []cio.Opt, opts ...containerd.NewTaskOpts) (containerd.Task, error) {
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var ioCreator cio.Creator
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if con != nil {
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if nullIO {
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return nil, errors.New("tty and null-io cannot be used together")
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}
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ioCreator = cio.NewCreator(append([]cio.Opt{cio.WithStreams(con, con, con), cio.WithTerminal}, ioOpts...)...)
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} else if nullIO {
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ioCreator = cio.NullIO
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} else {
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ioCreator = cio.NewCreator(append([]cio.Opt{cio.WithStdio}, ioOpts...)...)
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}
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return container.NewTask(ctx, ioCreator)
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}
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func getNewTaskOpts(_ *cli.Context) []containerd.NewTaskOpts {
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return nil
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}
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