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storage_headers_delete.go
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storage_headers_delete.go
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package cmd
import (
"fmt"
"strings"
"github.com/spf13/cobra"
"github.com/exoscale/cli/pkg/globalstate"
"github.com/exoscale/cli/pkg/output"
"github.com/exoscale/cli/pkg/storage/sos"
)
var storageHeaderDeleteCmd = &cobra.Command{
Use: "delete sos://BUCKET/(OBJECT|PREFIX/)",
Aliases: []string{"del"},
Short: "Delete HTTP headers from an object",
Long: fmt.Sprintf(`This command deletes response HTTP headers from objects.
Example:
exo storage headers delete sos://my-bucket/data.json \
--cache-control \
--expires
Note: the "Content-Type" header cannot be removed, it is reset to its default
value "application/binary".
Supported output template annotations: %s`,
strings.Join(output.TemplateAnnotations(&sos.ShowObjectOutput{}), ", ")),
PreRunE: func(cmd *cobra.Command, args []string) error {
if len(args) != 1 {
cmdExitOnUsageError(cmd, "invalid arguments")
}
args[0] = strings.TrimPrefix(args[0], sos.BucketPrefix)
if !strings.Contains(args[0], "/") {
cmdExitOnUsageError(cmd, fmt.Sprintf("invalid argument: %q", args[0]))
}
var hasHeaderFlagsSet bool
for _, flag := range []string{
sos.ObjectHeaderCacheControl,
sos.ObjectHeaderContentDisposition,
sos.ObjectHeaderContentEncoding,
sos.ObjectHeaderContentLanguage,
sos.ObjectHeaderContentType,
sos.ObjectHeaderExpires,
} {
if cmd.Flags().Changed(strings.ToLower(flag)) {
hasHeaderFlagsSet = true
break
}
}
if !hasHeaderFlagsSet {
cmdExitOnUsageError(cmd, "no header flag specified")
}
return nil
},
RunE: func(cmd *cobra.Command, args []string) error {
var (
bucket string
prefix string
headers []string
)
recursive, err := cmd.Flags().GetBool("recursive")
if err != nil {
return err
}
parts := strings.SplitN(args[0], "/", 2)
bucket, prefix = parts[0], parts[1]
storage, err := sos.NewStorageClient(
gContext,
sos.ClientOptZoneFromBucket(gContext, bucket),
)
if err != nil {
return fmt.Errorf("unable to initialize storage client: %w", err)
}
for _, header := range []string{
sos.ObjectHeaderCacheControl,
sos.ObjectHeaderContentDisposition,
sos.ObjectHeaderContentEncoding,
sos.ObjectHeaderContentLanguage,
sos.ObjectHeaderContentType,
sos.ObjectHeaderExpires,
} {
if ok, _ := cmd.Flags().GetBool(strings.ToLower(header)); ok {
headers = append(headers, header)
}
}
if err := storage.DeleteObjectsHeaders(gContext, bucket, prefix, headers, recursive); err != nil {
return fmt.Errorf("unable to add headers to object: %w", err)
}
if !globalstate.Quiet && !recursive && !strings.HasSuffix(prefix, "/") {
return printOutput(storage.ShowObject(gContext, bucket, prefix))
}
if !globalstate.Quiet {
fmt.Println("Headers deleted successfully")
}
return nil
},
}
func init() {
storageHeaderDeleteCmd.Flags().BoolP("recursive", "r", false,
"delete headers recursively (with object prefix only)")
storageHeaderDeleteCmd.Flags().Bool(strings.ToLower(sos.ObjectHeaderCacheControl), false,
`delete the "Cache-Control" header`)
storageHeaderDeleteCmd.Flags().Bool(strings.ToLower(sos.ObjectHeaderContentDisposition), false,
`delete the "Content-Disposition" header`)
storageHeaderDeleteCmd.Flags().Bool(strings.ToLower(sos.ObjectHeaderContentEncoding), false,
`delete the "Content-Encoding" header`)
storageHeaderDeleteCmd.Flags().Bool(strings.ToLower(sos.ObjectHeaderContentLanguage), false,
`delete the "Content-Language" header`)
storageHeaderDeleteCmd.Flags().Bool(strings.ToLower(sos.ObjectHeaderContentType), false,
`delete the "Content-Type" header`)
storageHeaderDeleteCmd.Flags().Bool(strings.ToLower(sos.ObjectHeaderExpires), false,
`delete the "Expires" header`)
storageHeaderCmd.AddCommand(storageHeaderDeleteCmd)
}