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Command_Delete.go
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Command_Delete.go
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package main
import (
"fmt"
"bufio"
"os"
)
func delete(cmd []string){
args,r := parseArguments(cmd,1)
if r==2 {
fmt.Println("[Error] You must specify a key to delete")
return
} else if r==3 {
fmt.Println("[Error] Couldn't parse arguments")
return
}
path := stringToPath(args[0],currentBucket)
trgt := path[len(path)-1]
nb := bckt{path[:len(path)-1]}
if !nb.exists(){
fmt.Println("[Error] The specified bucket doesn't exist")
return
}
val,suc := nb.getOne(trgt)
if !suc {
fmt.Printf("[Error] Value for key %s is undefined in %s\n",args[0],nb.bucketString())
return
}
if val.isBucket(){
fmt.Printf("Are you sure you wish to delete the BUCKET %s?\n",val.key())
} else {
fmt.Printf("Are you sure you wish to delete the KEY/VALUE %s?\n",val.key())
}
for{
fmt.Println("Type 'yes' to continue or 'no' to cancel")
scan := bufio.NewScanner(os.Stdin)
scan.Scan()
if scan.Text() == "yes"{
nb.delete([]byte(trgt))
fmt.Printf("%s was deleted",val.key())
break
} else if scan.Text() == "no" {
fmt.Println("The database was not changed")
break
}
fmt.Print("[Error] Unknown input. ")
}
}