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Make kubectl commands return errors and centralize exit handling

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This commit is contained in:
Jeff Lowdermilk
2015-03-09 15:08:16 -07:00
parent 7b72d9539f
commit cd7d78b696
20 changed files with 875 additions and 644 deletions
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93
pkg/kubectl/cmd/create.go
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@@ -39,54 +39,67 @@ $ cat pod.json | kubectl create -f -`
)
func (f *Factory) NewCmdCreate(out io.Writer) *cobra.Command {
flags := &struct {
Filenames util.StringList
}{}
var filenames util.StringList
cmd := &cobra.Command{
Use: "create -f filename",
Short: "Create a resource by filename or stdin",
Long: create_long,
Example: create_example,
Run: func(cmd *cobra.Command, args []string) {
schema, err := f.Validator(cmd)
err := RunCreate(f, out, cmd, filenames)
cmdutil.CheckErr(err)
cmdNamespace, err := f.DefaultNamespace(cmd)
cmdutil.CheckErr(err)
mapper, typer := f.Object(cmd)
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand(cmd)).
ContinueOnError().
NamespaceParam(cmdNamespace).RequireNamespace().
FilenameParam(flags.Filenames...).
Flatten().
Do()
cmdutil.CheckErr(r.Err())
count := 0
err = r.Visit(func(info *resource.Info) error {
data, err := info.Mapping.Codec.Encode(info.Object)
if err != nil {
return err
}
if err := schema.ValidateBytes(data); err != nil {
return err
}
obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, data)
if err != nil {
return err
}
count++
info.Refresh(obj, true)
fmt.Fprintf(out, "%s\n", info.Name)
return nil
})
cmdutil.CheckErr(err)
if count == 0 {
cmdutil.CheckErr(fmt.Errorf("no objects passed to create"))
}
},
}
cmd.Flags().VarP(&flags.Filenames, "filename", "f", "Filename, directory, or URL to file to use to create the resource")
cmd.Flags().VarP(&filenames, "filename", "f", "Filename, directory, or URL to file to use to create the resource")
return cmd
}
func RunCreate(f *Factory, out io.Writer, cmd *cobra.Command, filenames util.StringList) error {
schema, err := f.Validator(cmd)
if err != nil {
return err
}
cmdNamespace, err := f.DefaultNamespace(cmd)
if err != nil {
return err
}
mapper, typer := f.Object(cmd)
r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand(cmd)).
ContinueOnError().
NamespaceParam(cmdNamespace).RequireNamespace().
FilenameParam(filenames...).
Flatten().
Do()
err = r.Err()
if err != nil {
return err
}
count := 0
err = r.Visit(func(info *resource.Info) error {
data, err := info.Mapping.Codec.Encode(info.Object)
if err != nil {
return err
}
if err := schema.ValidateBytes(data); err != nil {
return err
}
obj, err := resource.NewHelper(info.Client, info.Mapping).Create(info.Namespace, true, data)
if err != nil {
return err
}
count++
info.Refresh(obj, true)
fmt.Fprintf(out, "%s\n", info.Name)
return nil
})
if err != nil {
return err
}
if count == 0 {
return fmt.Errorf("no objects passed to create")
}
return nil
}