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authorDaniel J Walsh <dwalsh@redhat.com>2020-06-11 14:40:38 -0400
committerDaniel J Walsh <dwalsh@redhat.com>2020-06-15 07:05:56 -0400
commit200cfa41a434b7143620c2c252b3eb7ab3ef92f9 (patch)
treeccf0cb95297dc65d4dc8bd366963e2b037fb1a8b /pkg/domain/infra/abi/containers.go
parent3f026eb6a682a68e69f9376b72157a8f084e575c (diff)
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Turn on More linters
- misspell - prealloc - unparam - nakedret Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'pkg/domain/infra/abi/containers.go')
-rw-r--r--pkg/domain/infra/abi/containers.go91
1 files changed, 42 insertions, 49 deletions
diff --git a/pkg/domain/infra/abi/containers.go b/pkg/domain/infra/abi/containers.go
index 4d6d0d59a..d2c8aefdc 100644
--- a/pkg/domain/infra/abi/containers.go
+++ b/pkg/domain/infra/abi/containers.go
@@ -84,13 +84,11 @@ func (ic *ContainerEngine) ContainerExists(ctx context.Context, nameOrID string)
}
func (ic *ContainerEngine) ContainerWait(ctx context.Context, namesOrIds []string, options entities.WaitOptions) ([]entities.WaitReport, error) {
- var (
- responses []entities.WaitReport
- )
ctrs, err := getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod)
if err != nil {
return nil, err
}
+ responses := make([]entities.WaitReport, 0, len(ctrs))
for _, c := range ctrs {
response := entities.WaitReport{Id: c.ID()}
exitCode, err := c.WaitForConditionWithInterval(options.Interval, options.Condition)
@@ -106,10 +104,9 @@ func (ic *ContainerEngine) ContainerWait(ctx context.Context, namesOrIds []strin
func (ic *ContainerEngine) ContainerPause(ctx context.Context, namesOrIds []string, options entities.PauseUnPauseOptions) ([]*entities.PauseUnpauseReport, error) {
var (
- ctrs []*libpod.Container
- err error
- report []*entities.PauseUnpauseReport
+ err error
)
+ ctrs := []*libpod.Container{} //nolint
if options.All {
ctrs, err = ic.Libpod.GetAllContainers()
} else {
@@ -118,6 +115,7 @@ func (ic *ContainerEngine) ContainerPause(ctx context.Context, namesOrIds []stri
if err != nil {
return nil, err
}
+ report := make([]*entities.PauseUnpauseReport, 0, len(ctrs))
for _, c := range ctrs {
err := c.Pause()
report = append(report, &entities.PauseUnpauseReport{Id: c.ID(), Err: err})
@@ -127,10 +125,9 @@ func (ic *ContainerEngine) ContainerPause(ctx context.Context, namesOrIds []stri
func (ic *ContainerEngine) ContainerUnpause(ctx context.Context, namesOrIds []string, options entities.PauseUnPauseOptions) ([]*entities.PauseUnpauseReport, error) {
var (
- ctrs []*libpod.Container
- err error
- report []*entities.PauseUnpauseReport
+ err error
)
+ ctrs := []*libpod.Container{} //nolint
if options.All {
ctrs, err = ic.Libpod.GetAllContainers()
} else {
@@ -139,6 +136,7 @@ func (ic *ContainerEngine) ContainerUnpause(ctx context.Context, namesOrIds []st
if err != nil {
return nil, err
}
+ report := make([]*entities.PauseUnpauseReport, 0, len(ctrs))
for _, c := range ctrs {
err := c.Unpause()
report = append(report, &entities.PauseUnpauseReport{Id: c.ID(), Err: err})
@@ -146,9 +144,6 @@ func (ic *ContainerEngine) ContainerUnpause(ctx context.Context, namesOrIds []st
return report, nil
}
func (ic *ContainerEngine) ContainerStop(ctx context.Context, namesOrIds []string, options entities.StopOptions) ([]*entities.StopReport, error) {
- var (
- reports []*entities.StopReport
- )
names := namesOrIds
for _, cidFile := range options.CIDFiles {
content, err := ioutil.ReadFile(cidFile)
@@ -184,6 +179,7 @@ func (ic *ContainerEngine) ContainerStop(ctx context.Context, namesOrIds []strin
if err != nil {
return nil, err
}
+ reports := make([]*entities.StopReport, 0, len(errMap))
for ctr, err := range errMap {
report := new(entities.StopReport)
report.Id = ctr.ID()
@@ -204,10 +200,10 @@ func (ic *ContainerEngine) ContainerPrune(ctx context.Context, options entities.
filterFuncs = append(filterFuncs, generatedFunc)
}
}
- return ic.pruneContainersHelper(ctx, filterFuncs)
+ return ic.pruneContainersHelper(filterFuncs)
}
-func (ic *ContainerEngine) pruneContainersHelper(ctx context.Context, filterFuncs []libpod.ContainerFilter) (*entities.ContainerPruneReport, error) {
+func (ic *ContainerEngine) pruneContainersHelper(filterFuncs []libpod.ContainerFilter) (*entities.ContainerPruneReport, error) {
prunedContainers, pruneErrors, err := ic.Libpod.PruneContainers(filterFuncs)
if err != nil {
return nil, err
@@ -220,9 +216,6 @@ func (ic *ContainerEngine) pruneContainersHelper(ctx context.Context, filterFunc
}
func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []string, options entities.KillOptions) ([]*entities.KillReport, error) {
- var (
- reports []*entities.KillReport
- )
sig, err := signal.ParseSignalNameOrNumber(options.Signal)
if err != nil {
return nil, err
@@ -231,6 +224,7 @@ func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []strin
if err != nil {
return nil, err
}
+ reports := make([]*entities.KillReport, 0, len(ctrs))
for _, con := range ctrs {
reports = append(reports, &entities.KillReport{
Id: con.ID(),
@@ -241,9 +235,8 @@ func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []strin
}
func (ic *ContainerEngine) ContainerRestart(ctx context.Context, namesOrIds []string, options entities.RestartOptions) ([]*entities.RestartReport, error) {
var (
- ctrs []*libpod.Container
- err error
- reports []*entities.RestartReport
+ ctrs []*libpod.Container
+ err error
)
if options.Running {
@@ -258,6 +251,7 @@ func (ic *ContainerEngine) ContainerRestart(ctx context.Context, namesOrIds []st
}
}
+ reports := make([]*entities.RestartReport, 0, len(ctrs))
for _, con := range ctrs {
timeout := con.StopTimeout()
if options.Timeout != nil {
@@ -272,9 +266,7 @@ func (ic *ContainerEngine) ContainerRestart(ctx context.Context, namesOrIds []st
}
func (ic *ContainerEngine) ContainerRm(ctx context.Context, namesOrIds []string, options entities.RmOptions) ([]*entities.RmReport, error) {
- var (
- reports []*entities.RmReport
- )
+ reports := []*entities.RmReport{}
if options.Storage {
for _, ctr := range namesOrIds {
report := entities.RmReport{Id: ctr}
@@ -347,11 +339,11 @@ func (ic *ContainerEngine) ContainerRm(ctx context.Context, namesOrIds []string,
}
func (ic *ContainerEngine) ContainerInspect(ctx context.Context, namesOrIds []string, options entities.InspectOptions) ([]*entities.ContainerInspectReport, error) {
- var reports []*entities.ContainerInspectReport
ctrs, err := getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod)
if err != nil {
return nil, err
}
+ reports := make([]*entities.ContainerInspectReport, 0, len(ctrs))
for _, c := range ctrs {
data, err := c.Inspect(options.Size)
if err != nil {
@@ -439,9 +431,8 @@ func (ic *ContainerEngine) ContainerExport(ctx context.Context, nameOrID string,
func (ic *ContainerEngine) ContainerCheckpoint(ctx context.Context, namesOrIds []string, options entities.CheckpointOptions) ([]*entities.CheckpointReport, error) {
var (
- err error
- cons []*libpod.Container
- reports []*entities.CheckpointReport
+ err error
+ cons []*libpod.Container
)
checkOpts := libpod.ContainerCheckpointOptions{
Keep: options.Keep,
@@ -463,6 +454,7 @@ func (ic *ContainerEngine) ContainerCheckpoint(ctx context.Context, namesOrIds [
if err != nil {
return nil, err
}
+ reports := make([]*entities.CheckpointReport, 0, len(cons))
for _, con := range cons {
err = con.Checkpoint(ctx, checkOpts)
reports = append(reports, &entities.CheckpointReport{
@@ -475,10 +467,8 @@ func (ic *ContainerEngine) ContainerCheckpoint(ctx context.Context, namesOrIds [
func (ic *ContainerEngine) ContainerRestore(ctx context.Context, namesOrIds []string, options entities.RestoreOptions) ([]*entities.RestoreReport, error) {
var (
- cons []*libpod.Container
- err error
- filterFuncs []libpod.ContainerFilter
- reports []*entities.RestoreReport
+ cons []*libpod.Container
+ err error
)
restoreOptions := libpod.ContainerCheckpointOptions{
@@ -491,10 +481,12 @@ func (ic *ContainerEngine) ContainerRestore(ctx context.Context, namesOrIds []st
IgnoreStaticMAC: options.IgnoreStaticMAC,
}
- filterFuncs = append(filterFuncs, func(c *libpod.Container) bool {
- state, _ := c.State()
- return state == define.ContainerStateExited
- })
+ filterFuncs := []libpod.ContainerFilter{
+ func(c *libpod.Container) bool {
+ state, _ := c.State()
+ return state == define.ContainerStateExited
+ },
+ }
switch {
case options.Import != "":
@@ -507,6 +499,7 @@ func (ic *ContainerEngine) ContainerRestore(ctx context.Context, namesOrIds []st
if err != nil {
return nil, err
}
+ reports := make([]*entities.RestoreReport, 0, len(cons))
for _, con := range cons {
err := con.Restore(ctx, restoreOptions)
reports = append(reports, &entities.RestoreReport{
@@ -565,34 +558,34 @@ func makeExecConfig(options entities.ExecOptions) *libpod.ExecConfig {
return execConfig
}
-func checkExecPreserveFDs(options entities.ExecOptions) (int, error) {
- ec := define.ExecErrorCodeGeneric
+func checkExecPreserveFDs(options entities.ExecOptions) error {
if options.PreserveFDs > 0 {
entries, err := ioutil.ReadDir("/proc/self/fd")
if err != nil {
- return ec, errors.Wrapf(err, "unable to read /proc/self/fd")
+ return errors.Wrapf(err, "unable to read /proc/self/fd")
}
m := make(map[int]bool)
for _, e := range entries {
i, err := strconv.Atoi(e.Name())
if err != nil {
- return ec, errors.Wrapf(err, "cannot parse %s in /proc/self/fd", e.Name())
+ return errors.Wrapf(err, "cannot parse %s in /proc/self/fd", e.Name())
}
m[i] = true
}
for i := 3; i < 3+int(options.PreserveFDs); i++ {
if _, found := m[i]; !found {
- return ec, errors.New("invalid --preserve-fds=N specified. Not enough FDs available")
+ return errors.New("invalid --preserve-fds=N specified. Not enough FDs available")
}
}
}
- return ec, nil
+ return nil
}
func (ic *ContainerEngine) ContainerExec(ctx context.Context, nameOrID string, options entities.ExecOptions, streams define.AttachStreams) (int, error) {
- ec, err := checkExecPreserveFDs(options)
+ ec := define.ExecErrorCodeGeneric
+ err := checkExecPreserveFDs(options)
if err != nil {
return ec, err
}
@@ -609,7 +602,7 @@ func (ic *ContainerEngine) ContainerExec(ctx context.Context, nameOrID string, o
}
func (ic *ContainerEngine) ContainerExecDetached(ctx context.Context, nameOrID string, options entities.ExecOptions) (string, error) {
- _, err := checkExecPreserveFDs(options)
+ err := checkExecPreserveFDs(options)
if err != nil {
return "", err
}
@@ -648,7 +641,7 @@ func (ic *ContainerEngine) ContainerExecDetached(ctx context.Context, nameOrID s
}
func (ic *ContainerEngine) ContainerStart(ctx context.Context, namesOrIds []string, options entities.ContainerStartOptions) ([]*entities.ContainerStartReport, error) {
- var reports []*entities.ContainerStartReport
+ reports := []*entities.ContainerStartReport{}
var exitCode = define.ExecErrorCodeGeneric
ctrs, rawInputs, err := getContainersAndInputByContext(false, options.Latest, namesOrIds, ic.Libpod)
if err != nil {
@@ -907,7 +900,7 @@ func (ic *ContainerEngine) ContainerLogs(ctx context.Context, containers []strin
}
func (ic *ContainerEngine) ContainerCleanup(ctx context.Context, namesOrIds []string, options entities.ContainerCleanupOptions) ([]*entities.ContainerCleanupReport, error) {
- var reports []*entities.ContainerCleanupReport
+ reports := []*entities.ContainerCleanupReport{}
ctrs, err := getContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod)
if err != nil {
return nil, err
@@ -958,11 +951,11 @@ func (ic *ContainerEngine) ContainerCleanup(ctx context.Context, namesOrIds []st
}
func (ic *ContainerEngine) ContainerInit(ctx context.Context, namesOrIds []string, options entities.ContainerInitOptions) ([]*entities.ContainerInitReport, error) {
- var reports []*entities.ContainerInitReport
ctrs, err := getContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod)
if err != nil {
return nil, err
}
+ reports := make([]*entities.ContainerInitReport, 0, len(ctrs))
for _, ctr := range ctrs {
report := entities.ContainerInitReport{Id: ctr.ID()}
err := ctr.Init(ctx)
@@ -993,11 +986,11 @@ func (ic *ContainerEngine) ContainerMount(ctx context.Context, nameOrIDs []strin
os.Exit(ret)
}
}
- var reports []*entities.ContainerMountReport
ctrs, err := getContainersByContext(options.All, options.Latest, nameOrIDs, ic.Libpod)
if err != nil {
return nil, err
}
+ reports := make([]*entities.ContainerMountReport, 0, len(ctrs))
for _, ctr := range ctrs {
report := entities.ContainerMountReport{Id: ctr.ID()}
report.Path, report.Err = ctr.Mount()
@@ -1030,11 +1023,11 @@ func (ic *ContainerEngine) ContainerMount(ctx context.Context, nameOrIDs []strin
}
func (ic *ContainerEngine) ContainerUnmount(ctx context.Context, nameOrIDs []string, options entities.ContainerUnmountOptions) ([]*entities.ContainerUnmountReport, error) {
- var reports []*entities.ContainerUnmountReport
ctrs, err := getContainersByContext(options.All, options.Latest, nameOrIDs, ic.Libpod)
if err != nil {
return nil, err
}
+ reports := []*entities.ContainerUnmountReport{}
for _, ctr := range ctrs {
state, err := ctr.State()
if err != nil {
@@ -1065,11 +1058,11 @@ func (ic *ContainerEngine) Config(_ context.Context) (*config.Config, error) {
}
func (ic *ContainerEngine) ContainerPort(ctx context.Context, nameOrID string, options entities.ContainerPortOptions) ([]*entities.ContainerPortReport, error) {
- var reports []*entities.ContainerPortReport
ctrs, err := getContainersByContext(options.All, options.Latest, []string{nameOrID}, ic.Libpod)
if err != nil {
return nil, err
}
+ reports := []*entities.ContainerPortReport{}
for _, con := range ctrs {
state, err := con.State()
if err != nil {