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authorPaul Holzinger <pholzing@redhat.com>2022-04-25 15:15:52 +0200
committerPaul Holzinger <pholzing@redhat.com>2022-04-26 18:12:22 +0200
commit51fbf3da9ee34a8143df5baeda6032c1747446d2 (patch)
treef5edbd047f5e4aea72b710403a0aa208b238c83b /cmd/podman
parent216d9243077f478a9c7ffda1c6e0b1fcbad9ee76 (diff)
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enable gocritic linter
The linter ensures a common code style. - use switch/case instead of else if - use if instead of switch/case for single case statement - add space between comment and text - detect the use of defer with os.Exit() - use short form var += "..." instead of var = var + "..." - detect problems with append() ``` newSlice := append(orgSlice, val) ``` This could lead to nasty bugs because the orgSlice will be changed in place if it has enough capacity too hold the new elements. Thus we newSlice might not be a copy. Of course most of the changes are just cosmetic and do not cause any logic errors but I think it is a good idea to enforce a common style. This should help maintainability. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Diffstat (limited to 'cmd/podman')
-rw-r--r--cmd/podman/common/completion.go9
-rw-r--r--cmd/podman/common/create.go2
-rw-r--r--cmd/podman/completion/completion.go2
-rw-r--r--cmd/podman/images/scp.go9
-rw-r--r--cmd/podman/pods/create.go7
-rw-r--r--cmd/podman/secrets/create.go7
-rw-r--r--cmd/podman/system/migrate.go4
-rw-r--r--cmd/podman/system/renumber.go3
-rw-r--r--cmd/podman/system/reset.go3
-rw-r--r--cmd/podman/utils/alias.go3
10 files changed, 30 insertions, 19 deletions
diff --git a/cmd/podman/common/completion.go b/cmd/podman/common/completion.go
index abb943942..c7d5d6d60 100644
--- a/cmd/podman/common/completion.go
+++ b/cmd/podman/common/completion.go
@@ -327,7 +327,7 @@ func suffixCompSlice(suf string, slice []string) []string {
if len(split) > 1 {
slice[i] = split[0] + suf + "\t" + split[1]
} else {
- slice[i] = slice[i] + suf
+ slice[i] += suf
}
}
return slice
@@ -647,7 +647,10 @@ func AutocompleteInspect(cmd *cobra.Command, args []string, toComplete string) (
pods, _ := getPods(cmd, toComplete, completeDefault)
networks, _ := getNetworks(cmd, toComplete, completeDefault)
volumes, _ := getVolumes(cmd, toComplete)
- suggestions := append(containers, images...)
+
+ suggestions := make([]string, 0, len(containers)+len(images)+len(pods)+len(networks)+len(volumes))
+ suggestions = append(suggestions, containers...)
+ suggestions = append(suggestions, images...)
suggestions = append(suggestions, pods...)
suggestions = append(suggestions, networks...)
suggestions = append(suggestions, volumes...)
@@ -961,6 +964,8 @@ func AutocompleteFormat(o interface{}) func(cmd *cobra.Command, args []string, t
// this function provides shell completion for go templates
return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
// autocomplete json when nothing or json is typed
+ // gocritic complains about the argument order but this is correct in this case
+ //nolint:gocritic
if strings.HasPrefix("json", toComplete) {
return []string{"json"}, cobra.ShellCompDirectiveNoFileComp
}
diff --git a/cmd/podman/common/create.go b/cmd/podman/common/create.go
index 62c9f4c9a..1c1a7c3e3 100644
--- a/cmd/podman/common/create.go
+++ b/cmd/podman/common/create.go
@@ -896,7 +896,7 @@ func DefineCreateFlags(cmd *cobra.Command, cf *entities.ContainerCreateOptions,
)
_ = cmd.RegisterFlagCompletionFunc(memorySwappinessFlagName, completion.AutocompleteNone)
}
- //anyone can use these
+ // anyone can use these
cpusFlagName := "cpus"
createFlags.Float64Var(
&cf.CPUS,
diff --git a/cmd/podman/completion/completion.go b/cmd/podman/completion/completion.go
index b02a0d772..6f185cde8 100644
--- a/cmd/podman/completion/completion.go
+++ b/cmd/podman/completion/completion.go
@@ -31,7 +31,7 @@ var (
Example: `podman completion bash
podman completion zsh -f _podman
podman completion fish --no-desc`,
- //don't show this command to users
+ // don't show this command to users
Hidden: true,
}
)
diff --git a/cmd/podman/images/scp.go b/cmd/podman/images/scp.go
index 51a9d1c4e..3dbc9c331 100644
--- a/cmd/podman/images/scp.go
+++ b/cmd/podman/images/scp.go
@@ -121,13 +121,8 @@ func scp(cmd *cobra.Command, args []string) (finalErr error) {
return err
}
if flipConnections { // the order of cliConnections matters, we need to flip both arrays since the args are parsed separately sometimes.
- connect := cliConnections[0]
- cliConnections[0] = cliConnections[1]
- cliConnections[1] = connect
-
- loc := locations[0]
- locations[0] = locations[1]
- locations[1] = loc
+ cliConnections[0], cliConnections[1] = cliConnections[1], cliConnections[0]
+ locations[0], locations[1] = locations[1], locations[0]
}
dest = *locations[1]
case len(locations) == 1:
diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go
index b45ed0d39..891ff2e3c 100644
--- a/cmd/podman/pods/create.go
+++ b/cmd/podman/pods/create.go
@@ -224,7 +224,8 @@ func create(cmd *cobra.Command, args []string) error {
}
sort.Ints(vals)
for ind, core := range vals {
- if core > int(cpuSet) {
+ switch {
+ case core > int(cpuSet):
if copy == "" {
copy = "0-" + strconv.Itoa(int(cpuSet))
infraOptions.CPUSetCPUs = copy
@@ -233,9 +234,9 @@ func create(cmd *cobra.Command, args []string) error {
infraOptions.CPUSetCPUs = copy
break
}
- } else if ind != 0 {
+ case ind != 0:
copy += "," + strconv.Itoa(core)
- } else {
+ default:
copy = "" + strconv.Itoa(core)
}
}
diff --git a/cmd/podman/secrets/create.go b/cmd/podman/secrets/create.go
index 069e2a1dc..01ee3d256 100644
--- a/cmd/podman/secrets/create.go
+++ b/cmd/podman/secrets/create.go
@@ -62,13 +62,14 @@ func create(cmd *cobra.Command, args []string) error {
path := args[1]
var reader io.Reader
- if env {
+ switch {
+ case env:
envValue := os.Getenv(path)
if envValue == "" {
return errors.Errorf("cannot create store secret data: environment variable %s is not set", path)
}
reader = strings.NewReader(envValue)
- } else if path == "-" || path == "/dev/stdin" {
+ case path == "-" || path == "/dev/stdin":
stat, err := os.Stdin.Stat()
if err != nil {
return err
@@ -77,7 +78,7 @@ func create(cmd *cobra.Command, args []string) error {
return errors.New("if `-` is used, data must be passed into stdin")
}
reader = os.Stdin
- } else {
+ default:
file, err := os.Open(path)
if err != nil {
return err
diff --git a/cmd/podman/system/migrate.go b/cmd/podman/system/migrate.go
index 5d7b31314..b2bca9be0 100644
--- a/cmd/podman/system/migrate.go
+++ b/cmd/podman/system/migrate.go
@@ -69,6 +69,10 @@ func migrate(cmd *cobra.Command, args []string) {
err = engine.Migrate(registry.Context(), cmd.Flags(), registry.PodmanConfig(), migrateOptions)
if err != nil {
fmt.Println(err)
+
+ // FIXME change this to return the error like other commands
+ // defer will never run on os.Exit()
+ //nolint:gocritic
os.Exit(define.ExecErrorCodeGeneric)
}
os.Exit(0)
diff --git a/cmd/podman/system/renumber.go b/cmd/podman/system/renumber.go
index f24488822..e5a241a4f 100644
--- a/cmd/podman/system/renumber.go
+++ b/cmd/podman/system/renumber.go
@@ -56,6 +56,9 @@ func renumber(cmd *cobra.Command, args []string) {
err = engine.Renumber(registry.Context(), cmd.Flags(), registry.PodmanConfig())
if err != nil {
fmt.Println(err)
+ // FIXME change this to return the error like other commands
+ // defer will never run on os.Exit()
+ //nolint:gocritic
os.Exit(define.ExecErrorCodeGeneric)
}
os.Exit(0)
diff --git a/cmd/podman/system/reset.go b/cmd/podman/system/reset.go
index e8cf127b7..03783170f 100644
--- a/cmd/podman/system/reset.go
+++ b/cmd/podman/system/reset.go
@@ -95,6 +95,9 @@ func reset(cmd *cobra.Command, args []string) {
if err := engine.Reset(registry.Context()); err != nil {
logrus.Error(err)
+ // FIXME change this to return the error like other commands
+ // defer will never run on os.Exit()
+ //nolint:gocritic
os.Exit(define.ExecErrorCodeGeneric)
}
os.Exit(0)
diff --git a/cmd/podman/utils/alias.go b/cmd/podman/utils/alias.go
index 4d5b625d0..b37d0f714 100644
--- a/cmd/podman/utils/alias.go
+++ b/cmd/podman/utils/alias.go
@@ -37,8 +37,7 @@ func AliasFlags(f *pflag.FlagSet, name string) pflag.NormalizedName {
// TimeoutAliasFlags is a function to handle backwards compatibility with old timeout flags
func TimeoutAliasFlags(f *pflag.FlagSet, name string) pflag.NormalizedName {
- switch name {
- case "timeout":
+ if name == "timeout" {
name = "time"
}
return pflag.NormalizedName(name)