containerd/cmd/ctr/commands/client.go
Derek Nola 132485adb0
Convert CLI to urfave v2
Followed the Migration Guide at https://cli.urfave.org/migrate-v1-to-v2/
The major changes not pointed out in the migration guide are:
- context.Args() no longer produces a []slice, so context.Args().Slice()
  in substitued
- All cli.Global***** are deprecated (the migration guide is somewhat
  unclear on this)

Signed-off-by: Derek Nola <derek.nola@suse.com>

Vendor in urfave cli/v2

Signed-off-by: Derek Nola <derek.nola@suse.com>

Fix NewStringSlice calls

Signed-off-by: Derek Nola <derek.nola@suse.com>
2024-02-15 09:48:04 -08:00

67 lines
2.2 KiB
Go

/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package commands
import (
gocontext "context"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/pkg/epoch"
"github.com/containerd/containerd/v2/pkg/namespaces"
"github.com/containerd/log"
"github.com/urfave/cli/v2"
)
// AppContext returns the context for a command. Should only be called once per
// command, near the start.
//
// This will ensure the namespace is picked up and set the timeout, if one is
// defined.
func AppContext(context *cli.Context) (gocontext.Context, gocontext.CancelFunc) {
var (
ctx = gocontext.Background()
timeout = context.Duration("timeout")
namespace = context.String("namespace")
cancel gocontext.CancelFunc
)
ctx = namespaces.WithNamespace(ctx, namespace)
if timeout > 0 {
ctx, cancel = gocontext.WithTimeout(ctx, timeout)
} else {
ctx, cancel = gocontext.WithCancel(ctx)
}
if tm, err := epoch.SourceDateEpoch(); err != nil {
log.L.WithError(err).Warn("Failed to read SOURCE_DATE_EPOCH")
} else if tm != nil {
log.L.Debugf("Using SOURCE_DATE_EPOCH: %v", tm)
ctx = epoch.WithSourceDateEpoch(ctx, tm)
}
return ctx, cancel
}
// NewClient returns a new containerd client
func NewClient(context *cli.Context, opts ...containerd.Opt) (*containerd.Client, gocontext.Context, gocontext.CancelFunc, error) {
timeoutOpt := containerd.WithTimeout(context.Duration("connect-timeout"))
opts = append(opts, timeoutOpt)
client, err := containerd.New(context.String("address"), opts...)
if err != nil {
return nil, nil, nil, err
}
ctx, cancel := AppContext(context)
return client, ctx, cancel, nil
}