rclone/cmd/copyurl/copyurl.go
Nick Craig-Wood bff702a6f1 docs: group the global flags and make them appear on command and flags pages
This adds an additional parameter to the creation of each flag. This
specifies one or more flag groups. This **must** be set for global
flags and **must not** be set for local flags.

This causes flags.md to be built with sections to aid comprehension
and it causes the documentation pages for each command (and the
`--help`) to be built showing the flags groups as specified in the
`groups` annotation on the command.

See: https://forum.rclone.org/t/make-docs-for-mortals-not-only-rclone-gurus/39476/
2023-08-02 12:53:09 +01:00

90 lines
2.9 KiB
Go

// Package copyurl provides the copyurl command.
package copyurl
import (
"context"
"errors"
"fmt"
"os"
"github.com/rclone/rclone/cmd"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/config/flags"
"github.com/rclone/rclone/fs/operations"
"github.com/spf13/cobra"
)
var (
autoFilename = false
headerFilename = false
printFilename = false
stdout = false
noClobber = false
)
func init() {
cmd.Root.AddCommand(commandDefinition)
cmdFlags := commandDefinition.Flags()
flags.BoolVarP(cmdFlags, &autoFilename, "auto-filename", "a", autoFilename, "Get the file name from the URL and use it for destination file path", "")
flags.BoolVarP(cmdFlags, &headerFilename, "header-filename", "", headerFilename, "Get the file name from the Content-Disposition header", "")
flags.BoolVarP(cmdFlags, &printFilename, "print-filename", "p", printFilename, "Print the resulting name from --auto-filename", "")
flags.BoolVarP(cmdFlags, &noClobber, "no-clobber", "", noClobber, "Prevent overwriting file with same name", "")
flags.BoolVarP(cmdFlags, &stdout, "stdout", "", stdout, "Write the output to stdout rather than a file", "")
}
var commandDefinition = &cobra.Command{
Use: "copyurl https://example.com dest:path",
Short: `Copy url content to dest.`,
Long: `
Download a URL's content and copy it to the destination without saving
it in temporary storage.
Setting ` + "`--auto-filename`" + ` will attempt to automatically determine the filename from the URL
(after any redirections) and used in the destination path.
With ` + "`--auto-filename-header`" + ` in
addition, if a specific filename is set in HTTP headers, it will be used instead of the name from the URL.
With ` + "`--print-filename`" + ` in addition, the resulting file name will be printed.
Setting ` + "`--no-clobber`" + ` will prevent overwriting file on the
destination if there is one with the same name.
Setting ` + "`--stdout`" + ` or making the output file name ` + "`-`" + `
will cause the output to be written to standard output.
`,
Annotations: map[string]string{
"versionIntroduced": "v1.43",
"groups": "Important",
},
RunE: func(command *cobra.Command, args []string) (err error) {
cmd.CheckArgs(1, 2, command, args)
var dstFileName string
var fsdst fs.Fs
if !stdout {
if len(args) < 2 {
return errors.New("need 2 arguments if not using --stdout")
}
if args[1] == "-" {
stdout = true
} else if autoFilename {
fsdst = cmd.NewFsDir(args[1:])
} else {
fsdst, dstFileName = cmd.NewFsDstFile(args[1:])
}
}
cmd.Run(true, true, command, func() error {
var dst fs.Object
if stdout {
err = operations.CopyURLToWriter(context.Background(), args[0], os.Stdout)
} else {
dst, err = operations.CopyURL(context.Background(), fsdst, dstFileName, args[0], autoFilename, headerFilename, noClobber)
if printFilename && err == nil && dst != nil {
fmt.Println(dst.Remote())
}
}
return err
})
return nil
},
}