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package commands
import (
"errors"
"path/filepath"
"redisClone/pkg/core"
"sort"
"strconv"
)
func Keys(args []string, getShard func(k string) *core.Shard) interface{} {
pattern := args[1]
limit := -1
if len(args) == 3 {
val, err := strconv.Atoi(args[2])
if err != nil {
return errors.New("value is not an integer")
}
limit = val
}
var matches []string
for _, shard := range dbInstance.Shards {
for key := range shard.Data {
matched, err := filepath.Match(pattern, key)
if err != nil {
return errors.New("illegal glob pattern")
}
if matched {
matches = append(matches, key)
}
}
}
sort.Strings(matches)
if limit != -1 && len(matches) > limit {
matches = matches[:limit]
}
return matches
}
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