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ls.go
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ls.go
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package commands
import (
"context"
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"time"
"github.com/docker/buildx/store"
"github.com/docker/buildx/util/platformutil"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/moby/buildkit/util/appcontext"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
)
type lsOptions struct {
}
func runLs(dockerCli command.Cli, in lsOptions) error {
ctx := appcontext.Context()
txn, release, err := getStore(dockerCli)
if err != nil {
return err
}
defer release()
ctx, cancel := context.WithTimeout(ctx, 20*time.Second)
defer cancel()
ll, err := txn.List()
if err != nil {
return err
}
builders := make([]*nginfo, len(ll))
for i, ng := range ll {
builders[i] = &nginfo{ng: ng}
}
list, err := dockerCli.ContextStore().List()
if err != nil {
return err
}
ctxbuilders := make([]*nginfo, len(list))
for i, l := range list {
ctxbuilders[i] = &nginfo{ng: &store.NodeGroup{
Name: l.Name,
Nodes: []store.Node{{
Name: l.Name,
Endpoint: l.Name,
}},
}}
}
builders = append(builders, ctxbuilders...)
eg, _ := errgroup.WithContext(ctx)
for _, b := range builders {
func(b *nginfo) {
eg.Go(func() error {
err = loadNodeGroupData(ctx, dockerCli, b)
if b.err == nil && err != nil {
b.err = err
}
return nil
})
}(b)
}
if err := eg.Wait(); err != nil {
return err
}
currentName := "default"
current, err := getCurrentInstance(txn, dockerCli)
if err != nil {
return err
}
if current != nil {
currentName = current.Name
if current.Name == "default" {
currentName = current.Nodes[0].Endpoint
}
}
w := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
fmt.Fprintf(w, "NAME/NODE\tDRIVER/ENDPOINT\tSTATUS\tPLATFORMS\n")
currentSet := false
for _, b := range builders {
if !currentSet && b.ng.Name == currentName {
b.ng.Name += " *"
currentSet = true
}
printngi(w, b)
}
w.Flush()
return nil
}
func printngi(w io.Writer, ngi *nginfo) {
var err string
if ngi.err != nil {
err = ngi.err.Error()
}
fmt.Fprintf(w, "%s\t%s\t%s\t\n", ngi.ng.Name, ngi.ng.Driver, err)
if ngi.err == nil {
for idx, n := range ngi.ng.Nodes {
d := ngi.drivers[idx]
var err string
if d.err != nil {
err = d.err.Error()
} else if d.di.Err != nil {
err = d.di.Err.Error()
}
var status string
if d.info != nil {
status = d.info.Status.String()
}
if err != "" {
fmt.Fprintf(w, " %s\t%s\t%s\n", n.Name, n.Endpoint, err)
} else {
fmt.Fprintf(w, " %s\t%s\t%s\t%s\n", n.Name, n.Endpoint, status, strings.Join(platformutil.FormatInGroups(n.Platforms, d.platforms), ", "))
}
}
}
}
func lsCmd(dockerCli command.Cli) *cobra.Command {
var options lsOptions
cmd := &cobra.Command{
Use: "ls",
Short: "List builder instances",
Args: cli.ExactArgs(0),
RunE: func(cmd *cobra.Command, args []string) error {
return runLs(dockerCli, options)
},
}
return cmd
}