Jonathan A. Sternberg
42599a7d49
Adds a simple implementation of the debug adapter that supports the very basics of a debug adapter. It supports the launch request, the configuration done request, the creation of threads, stopping, resuming, and disconnecting from server. It does not support custom breakpoints, stack traces, or variable inspection yet. These are planned to be added in the future. Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package commands
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import (
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"context"
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"github.com/docker/buildx/dap"
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"github.com/docker/buildx/util/cobrautil"
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"github.com/docker/buildx/util/ioset"
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"github.com/docker/buildx/util/progress"
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"github.com/docker/cli/cli/command"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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func dapCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
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var options dapOptions
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cmd := &cobra.Command{
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Use: "dap",
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Short: "Start debug adapter protocol compatible debugger",
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}
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cobrautil.MarkCommandExperimental(cmd)
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flags := cmd.Flags()
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flags.StringVar(&options.OnFlag, "on", "error", "When to pause the adapter ([always, error])")
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cobrautil.MarkFlagsExperimental(flags, "on")
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dapBuildCmd := buildCmd(dockerCli, rootOpts, &options)
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dapBuildCmd.Args = cobra.RangeArgs(0, 1)
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cmd.AddCommand(dapBuildCmd)
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return cmd
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}
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type dapOptions struct {
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// OnFlag is a flag to configure the timing of launching the debugger.
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OnFlag string
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}
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func (d *dapOptions) New(in ioset.In) (debuggerInstance, error) {
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invokeConfig, err := parseInvokeConfig("", d.OnFlag)
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if err != nil {
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return nil, err
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}
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conn := dap.NewConn(in.Stdin, in.Stdout)
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return &adapterProtocolDebugger{
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Adapter: dap.New[LaunchConfig](invokeConfig),
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conn: conn,
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}, nil
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}
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type LaunchConfig struct {
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Dockerfile string `json:"dockerfile,omitempty"`
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ContextPath string `json:"contextPath,omitempty"`
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Target string `json:"target,omitempty"`
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}
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type adapterProtocolDebugger struct {
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*dap.Adapter[LaunchConfig]
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conn dap.Conn
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}
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func (d *adapterProtocolDebugger) Start(printer *progress.Printer, opts *BuildOptions) error {
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cfg, err := d.Adapter.Start(context.Background(), d.conn)
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if err != nil {
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return errors.Wrap(err, "debug adapter did not start")
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}
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if cfg.Dockerfile != "" {
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opts.DockerfileName = cfg.Dockerfile
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}
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if cfg.ContextPath != "" {
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opts.ContextPath = cfg.ContextPath
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}
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return nil
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}
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func (d *adapterProtocolDebugger) Stop() error {
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defer d.conn.Close()
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return d.Adapter.Stop()
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}
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