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dap: add debug adapter implementation

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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>
This commit is contained in:
Jonathan A. Sternberg
2025-06-30 10:51:20 -05:00
parent 43e2f27cac
commit 42599a7d49
27 changed files with 4034 additions and 213 deletions
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build/result.go
+13 -20
View File
@@ -16,7 +16,7 @@ import (
"github.com/sirupsen/logrus"
)
// NewResultHandle stores a gateway client, gateway result, and the error from
// NewResultHandle stores a gateway client, gateway reference, and the error from
// an evaluate call if it is present.
//
// This ResultHandle can be used to execute additional build steps in the same
@@ -24,9 +24,10 @@ import (
// failures and successes.
//
// If the returned ResultHandle is not nil, the caller must call Done() on it.
func NewResultHandle(ctx context.Context, c gateway.Client, res *gateway.Result, err error) *ResultHandle {
func NewResultHandle(ctx context.Context, c gateway.Client, ref gateway.Reference, meta map[string][]byte, err error) *ResultHandle {
rCtx := &ResultHandle{
res: res,
ref: ref,
meta: meta,
gwClient: c,
}
if err != nil && !errors.As(err, &rCtx.solveErr) {
@@ -37,8 +38,9 @@ func NewResultHandle(ctx context.Context, c gateway.Client, res *gateway.Result,
// ResultHandle is a build result with the client that built it.
type ResultHandle struct {
res *gateway.Result
ref gateway.Reference
solveErr *errdefs.SolveError
meta map[string][]byte
gwClient gateway.Client
doneOnce sync.Once
@@ -74,9 +76,9 @@ func (r *ResultHandle) NewContainer(ctx context.Context, cfg *InvokeConfig) (gat
}
func (r *ResultHandle) getContainerConfig(cfg *InvokeConfig) (containerCfg gateway.NewContainerRequest, _ error) {
if r.res != nil && r.solveErr == nil {
if r.ref != nil && r.solveErr == nil {
logrus.Debugf("creating container from successful build")
ccfg, err := containerConfigFromResult(r.res, cfg)
ccfg, err := containerConfigFromResult(r.ref, cfg)
if err != nil {
return containerCfg, err
}
@@ -94,9 +96,9 @@ func (r *ResultHandle) getContainerConfig(cfg *InvokeConfig) (containerCfg gatew
func (r *ResultHandle) getProcessConfig(cfg *InvokeConfig, stdin io.ReadCloser, stdout io.WriteCloser, stderr io.WriteCloser) (_ gateway.StartRequest, err error) {
processCfg := newStartRequest(stdin, stdout, stderr)
if r.res != nil && r.solveErr == nil {
if r.ref != nil && r.solveErr == nil {
logrus.Debugf("creating container from successful build")
if err := populateProcessConfigFromResult(&processCfg, r.res, cfg); err != nil {
if err := populateProcessConfigFromResult(&processCfg, r.meta, cfg); err != nil {
return processCfg, err
}
} else {
@@ -108,20 +110,11 @@ func (r *ResultHandle) getProcessConfig(cfg *InvokeConfig, stdin io.ReadCloser,
return processCfg, nil
}
func containerConfigFromResult(res *gateway.Result, cfg *InvokeConfig) (*gateway.NewContainerRequest, error) {
func containerConfigFromResult(ref gateway.Reference, cfg *InvokeConfig) (*gateway.NewContainerRequest, error) {
if cfg.Initial {
return nil, errors.Errorf("starting from the container from the initial state of the step is supported only on the failed steps")
}
ps, err := exptypes.ParsePlatforms(res.Metadata)
if err != nil {
return nil, err
}
ref, ok := res.FindRef(ps.Platforms[0].ID)
if !ok {
return nil, errors.Errorf("no reference found")
}
return &gateway.NewContainerRequest{
Mounts: []gateway.Mount{
{
@@ -133,8 +126,8 @@ func containerConfigFromResult(res *gateway.Result, cfg *InvokeConfig) (*gateway
}, nil
}
func populateProcessConfigFromResult(req *gateway.StartRequest, res *gateway.Result, cfg *InvokeConfig) error {
imgData := res.Metadata[exptypes.ExporterImageConfigKey]
func populateProcessConfigFromResult(req *gateway.StartRequest, meta map[string][]byte, cfg *InvokeConfig) error {
imgData := meta[exptypes.ExporterImageConfigKey]
var img *ocispecs.Image
if len(imgData) > 0 {
img = &ocispecs.Image{}