mirror of https://github.com/docker/compose.git
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
/*
|
|
Copyright 2020 Docker Compose CLI 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 compose
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"sort"
|
|
"strings"
|
|
"text/tabwriter"
|
|
|
|
"github.com/spf13/cobra"
|
|
|
|
"github.com/docker/compose/v2/pkg/api"
|
|
)
|
|
|
|
type topOptions struct {
|
|
*projectOptions
|
|
}
|
|
|
|
func topCommand(p *projectOptions, backend api.Service) *cobra.Command {
|
|
opts := topOptions{
|
|
projectOptions: p,
|
|
}
|
|
topCmd := &cobra.Command{
|
|
Use: "top [SERVICES...]",
|
|
Short: "Display the running processes",
|
|
RunE: Adapt(func(ctx context.Context, args []string) error {
|
|
return runTop(ctx, backend, opts, args)
|
|
}),
|
|
ValidArgsFunction: completeServiceNames(p),
|
|
}
|
|
return topCmd
|
|
}
|
|
|
|
func runTop(ctx context.Context, backend api.Service, opts topOptions, services []string) error {
|
|
projectName, err := opts.toProjectName()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
containers, err := backend.Top(ctx, projectName, services)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
sort.Slice(containers, func(i, j int) bool {
|
|
return containers[i].Name < containers[j].Name
|
|
})
|
|
|
|
for _, container := range containers {
|
|
fmt.Printf("%s\n", container.Name)
|
|
err := psPrinter(os.Stdout, func(w io.Writer) {
|
|
for _, proc := range container.Processes {
|
|
info := []interface{}{}
|
|
for _, p := range proc {
|
|
info = append(info, p)
|
|
}
|
|
_, _ = fmt.Fprintf(w, strings.Repeat("%s\t", len(info))+"\n", info...)
|
|
|
|
}
|
|
fmt.Fprintln(w)
|
|
},
|
|
container.Titles...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func psPrinter(out io.Writer, printer func(writer io.Writer), headers ...string) error {
|
|
w := tabwriter.NewWriter(out, 5, 1, 3, ' ', 0)
|
|
_, _ = fmt.Fprintln(w, strings.Join(headers, "\t"))
|
|
printer(w)
|
|
return w.Flush()
|
|
}
|