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Martin DisibioandGitHub
b05989ebf1
* Upgrade dskit, requires pinning grpc * lint * oops update serverless too
29 lines
758 B
Go
29 lines
758 B
Go
package flagext
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import (
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"flag"
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"fmt"
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"os"
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"strings"
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)
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// ParseFlagsAndArguments calls Parse() on the input flag.FlagSet and returns the parsed arguments.
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func ParseFlagsAndArguments(f *flag.FlagSet) ([]string, error) {
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err := f.Parse(os.Args[1:])
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return f.Args(), err
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}
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// ParseFlagsWithoutArguments calls Parse() on the input flag.FlagSet and enforces no arguments have been parsed.
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// This utility should be called whenever we only expect CLI flags but no arguments.
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func ParseFlagsWithoutArguments(f *flag.FlagSet) error {
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if err := f.Parse(os.Args[1:]); err != nil {
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return err
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}
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if f.NArg() > 0 {
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return fmt.Errorf("the command does not support any argument, but some were provided: %s", strings.Join(f.Args(), " "))
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}
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return nil
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}
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