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impl.go
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/
impl.go
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package commands
import (
"flag"
"fmt"
"io"
"github.com/Cloud-Foundations/Dominator/lib/log"
)
func printCommands(writer io.Writer, commands []Command) {
for _, command := range commands {
if command.Args == "" {
fmt.Fprintln(writer, " ", command.Command)
} else {
fmt.Fprintln(writer, " ", command.Command, command.Args)
}
}
}
func runCommands(commands []Command, printUsage func(),
logger log.DebugLogger) int {
numCommandArgs := flag.NArg() - 1
for _, command := range commands {
if flag.Arg(0) == command.Command {
if numCommandArgs < command.MinArgs ||
(command.MaxArgs >= 0 &&
numCommandArgs > command.MaxArgs) {
printUsage()
return 2
}
if err := command.CmdFunc(flag.Args()[1:], logger); err != nil {
fmt.Fprintln(flag.CommandLine.Output(), err)
return 1
}
return 0
}
}
printUsage()
return 2
}