client: Merge driver/shared/structs and client/structs

client/allocrunner/taskrunner/stats_hook.go

@@ -9,7 +9,6 @@ import (
 	hclog "github.com/hashicorp/go-hclog"
 	"github.com/hashicorp/nomad/client/allocrunner/interfaces"
 	cstructs "github.com/hashicorp/nomad/client/structs"
-	dstructs "github.com/hashicorp/nomad/drivers/shared/structs"
 )
 
 // StatsUpdater is the interface required by the StatsHook to update stats.
@@ -95,7 +94,7 @@ func (h *statsHook) collectResourceUsageStats(handle interfaces.DriverStats, sto
 			ru, err := handle.Stats()
 			if err != nil {
 				// Check if the driver doesn't implement stats
-				if err.Error() == dstructs.DriverStatsNotImplemented.Error() {
+				if err.Error() == cstructs.DriverStatsNotImplemented.Error() {
 					h.logger.Debug("driver does not support stats")
 					return
 				}

client/allocrunner/taskrunner/stats_hook_test.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/hashicorp/nomad/client/allocrunner/interfaces"
 	cstructs "github.com/hashicorp/nomad/client/structs"
-	dstructs "github.com/hashicorp/nomad/drivers/shared/structs"
 	"github.com/hashicorp/nomad/helper/testlog"
 	"github.com/stretchr/testify/require"
 )
@@ -160,7 +159,7 @@ func TestTaskRunner_StatsHook_NotImplemented(t *testing.T) {
 	logger := testlog.HCLogger(t)
 	su := newMockStatsUpdater()
 	ds := &mockDriverStats{
-		err: dstructs.DriverStatsNotImplemented,
+		err: cstructs.DriverStatsNotImplemented,
 	}
 
 	poststartReq := &interfaces.TaskPoststartRequest{DriverStats: ds}

client/allocrunnerdeprecated/taskrunner/task_runner.go

@@ -1601,7 +1601,7 @@ func (r *TaskRunner) collectResourceUsageStats(stopCollection <-chan struct{}) {
 
 			if err != nil {
 				// Check if the driver doesn't implement stats
-				if err.Error() == dstructs.DriverStatsNotImplemented.Error() {
+				if err.Error() == cstructs.DriverStatsNotImplemented.Error() {
 					r.logger.Printf("[DEBUG] client: driver for task %q in allocation %q doesn't support stats", r.task.Name, r.alloc.ID)
 					return
 				}

client/structs/structs.go

@@ -4,6 +4,7 @@ package structs
 
 import (
 	"crypto/md5"
+	"errors"
 	"io"
 	"strconv"
 	"time"
@@ -437,3 +438,10 @@ func (h *HealthCheckResponse) AddDriverInfo(name string, driverInfo *structs.Dri
 
 	h.Drivers[name] = driverInfo
 }
+
+// CheckBufSize is the size of the buffer that is used for job output
+const CheckBufSize = 4 * 1024
+
+// DriverStatsNotImplemented is the error to be returned if a driver doesn't
+// implement stats.
+var DriverStatsNotImplemented = errors.New("stats not implemented for driver")

drivers/docker/handle.go

@@ -15,7 +15,6 @@ import (
 	plugin "github.com/hashicorp/go-plugin"
 	cstructs "github.com/hashicorp/nomad/client/structs"
 	"github.com/hashicorp/nomad/drivers/docker/docklog"
-	dstructs "github.com/hashicorp/nomad/drivers/shared/structs"
 	"github.com/hashicorp/nomad/helper/stats"
 	"github.com/hashicorp/nomad/plugins/drivers"
 	"github.com/hashicorp/nomad/plugins/shared"
@@ -83,8 +82,8 @@ func (h *taskHandle) Exec(ctx context.Context, cmd string, args []string) (*driv
 	}
 
 	execResult := &drivers.ExecTaskResult{ExitResult: &drivers.ExitResult{}}
-	stdout, _ := circbuf.NewBuffer(int64(dstructs.CheckBufSize))
-	stderr, _ := circbuf.NewBuffer(int64(dstructs.CheckBufSize))
+	stdout, _ := circbuf.NewBuffer(int64(cstructs.CheckBufSize))
+	stderr, _ := circbuf.NewBuffer(int64(cstructs.CheckBufSize))
 	startOpts := docker.StartExecOptions{
 		Detach:       false,
 		Tty:          false,

drivers/shared/executor/executor.go

@@ -24,7 +24,6 @@ import (
 
 	"github.com/hashicorp/consul-template/signals"
 	cstructs "github.com/hashicorp/nomad/client/structs"
-	dstructs "github.com/hashicorp/nomad/drivers/shared/structs"
 )
 
 const (
@@ -321,7 +320,7 @@ func ExecScript(ctx context.Context, dir string, env []string, attrs *syscall.Sy
 	cmd.Env = env
 
 	// Capture output
-	buf, _ := circbuf.NewBuffer(int64(dstructs.CheckBufSize))
+	buf, _ := circbuf.NewBuffer(int64(cstructs.CheckBufSize))
 	cmd.Stdout = buf
 	cmd.Stderr = buf
 

drivers/shared/executor/executor_linux.go

@@ -19,7 +19,6 @@ import (
 	multierror "github.com/hashicorp/go-multierror"
 	"github.com/hashicorp/nomad/client/stats"
 	cstructs "github.com/hashicorp/nomad/client/structs"
-	dstructs "github.com/hashicorp/nomad/drivers/shared/structs"
 	"github.com/hashicorp/nomad/helper/discover"
 	shelpers "github.com/hashicorp/nomad/helper/stats"
 	"github.com/hashicorp/nomad/helper/uuid"
@@ -403,7 +402,7 @@ func (l *LibcontainerExecutor) Signal(s os.Signal) error {
 func (l *LibcontainerExecutor) Exec(deadline time.Time, cmd string, args []string) ([]byte, int, error) {
 	combined := append([]string{cmd}, args...)
 	// Capture output
-	buf, _ := circbuf.NewBuffer(int64(dstructs.CheckBufSize))
+	buf, _ := circbuf.NewBuffer(int64(cstructs.CheckBufSize))
 
 	process := &libcontainer.Process{
 		Args:   combined,

drivers/shared/structs/structs.go

@@ -1,10 +0,0 @@
-package structs
-
-import "errors"
-
-// CheckBufSize is the size of the buffer that is used for job output
-const CheckBufSize = 4 * 1024
-
-// DriverStatsNotImplemented is the error to be returned if a driver doesn't
-// implement stats.
-var DriverStatsNotImplemented = errors.New("stats not implemented for driver")