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Feat:Add "copy" command

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Add "copy" command,also fixes the out of range error of select when the number is negative.

Move execCopy to "keys.go" ,
Add test in "keys_test.go",
Add "copy.go" and "copy_test.go" file.
This commit is contained in:
Eriri
2022-06-23 15:20:07 +08:00
committed by finley
parent 7a9cbb7c11
commit f327000d3a
9 changed files with 395 additions and 3 deletions
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7
database/database.go
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@@ -122,6 +122,11 @@ func (mdb *MultiDB) Exec(c redis.Connection, cmdLine [][]byte) (result redis.Rep
return protocol.MakeArgNumErrReply("select")
}
return execSelect(c, mdb, cmdLine[1:])
} else if cmdName == "copy" {
if len(cmdLine) < 3 {
return protocol.MakeArgNumErrReply("copy")
}
return execCopy(mdb, c, cmdLine[1:])
}
// todo: support multi database transaction
@@ -151,7 +156,7 @@ func execSelect(c redis.Connection, mdb *MultiDB, args [][]byte) redis.Reply {
if err != nil {
return protocol.MakeErrReply("ERR invalid DB index")
}
if dbIndex >= len(mdb.dbSet) {
if dbIndex >= len(mdb.dbSet) || dbIndex < 0 {
return protocol.MakeErrReply("ERR DB index is out of range")
}
c.SelectDB(dbIndex)