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buildx/monitor/commands/reload.go

84 lines
2.2 KiB
Go

package commands
import (
"context"
"fmt"
"io"
controllererrors "github.com/docker/buildx/controller/errdefs"
controllerapi "github.com/docker/buildx/controller/pb"
"github.com/docker/buildx/monitor/types"
"github.com/docker/buildx/util/progress"
"github.com/pkg/errors"
)
type ReloadCmd struct {
m types.Monitor
stdout io.WriteCloser
progress *progress.Printer
options *controllerapi.BuildOptions
invokeConfig controllerapi.InvokeConfig
}
func NewReloadCmd(m types.Monitor, stdout io.WriteCloser, progress *progress.Printer, options *controllerapi.BuildOptions, invokeConfig controllerapi.InvokeConfig) types.Command {
return &ReloadCmd{m, stdout, progress, options, invokeConfig}
}
func (cm *ReloadCmd) Info() types.CommandInfo {
return types.CommandInfo{
Name: "reload",
HelpMessage: "reloads the context and build it",
HelpMessageLong: `
Usage:
reload
`,
}
}
func (cm *ReloadCmd) Exec(ctx context.Context, args []string) error {
var bo *controllerapi.BuildOptions
if ref := cm.m.AttachedSessionID(); ref != "" {
// Rebuilding an existing session; Restore the build option used for building this session.
res, err := cm.m.Inspect(ctx, ref)
if err != nil {
fmt.Printf("failed to inspect the current build session: %v\n", err)
} else {
bo = res.Options
}
} else {
bo = cm.options
}
if bo == nil {
return errors.Errorf("no build option is provided")
}
if ref := cm.m.AttachedSessionID(); ref != "" {
if err := cm.m.Disconnect(ctx, ref); err != nil {
fmt.Println("disconnect error", err)
}
}
var resultUpdated bool
cm.progress.Unpause()
ref, _, err := cm.m.Build(ctx, *bo, nil, cm.progress) // TODO: support stdin, hold build ref
cm.progress.Pause()
if err != nil {
var be *controllererrors.BuildError
if errors.As(err, &be) {
ref = be.Ref
resultUpdated = true
} else {
fmt.Printf("failed to reload: %v\n", err)
}
} else {
resultUpdated = true
}
cm.m.AttachSession(ref)
if resultUpdated {
// rollback the running container with the new result
id := cm.m.Rollback(ctx, cm.invokeConfig)
fmt.Fprintf(cm.stdout, "Interactive container was restarted with process %q. Press Ctrl-a-c to switch to the new container\n", id)
}
return nil
}