89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
/*
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Copyright © 2025 Lewis Wynne <lew@ily.rs>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cmd
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import (
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"fmt"
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"strings"
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)
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// KeySpec is a parsed key reference.
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type KeySpec struct {
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Raw string // Whole, unmodified user input
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RawKey string // Key segment
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RawDB string // DB segment
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Key string // Normalised Key
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DB string // Normalised DB
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}
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// ParseKey parses "KEY[@DB]" into a normalized KeySpec.
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// When defaults is true, a missing DB defaults to the configured default.
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func ParseKey(raw string, defaults bool) (KeySpec, error) {
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parts := strings.Split(raw, "@")
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if len(parts) > 2 {
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return KeySpec{}, fmt.Errorf("bad key format, use KEY@DB")
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}
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rawKey := parts[0]
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rawDB := ""
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if len(parts) == 2 {
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rawDB = parts[1]
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if strings.TrimSpace(rawDB) == "" {
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return KeySpec{}, fmt.Errorf("bad key format, use KEY@DB")
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}
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if err := validateDBName(rawDB); err != nil {
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return KeySpec{}, err
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}
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}
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key := strings.ToLower(rawKey)
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db := strings.ToLower(rawDB)
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if db == "" && defaults {
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db = config.DefaultDB
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}
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return KeySpec{
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Raw: raw,
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RawKey: rawKey,
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RawDB: rawDB,
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Key: key,
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DB: db,
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}, nil
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}
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// Full returns the whole normalized key reference.
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func (k KeySpec) Full() string {
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if k.DB == "" {
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return k.Key
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}
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return fmt.Sprintf("%s@%s", k.Key, k.DB)
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}
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// Display returns the normalized key reference
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// but omits the default database if none was set manually
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func (k KeySpec) Display() string {
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if k.DB == "" || k.DB == config.DefaultDB {
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return k.Key
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}
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return fmt.Sprintf("%s@%s", k.Key, k.DB)
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}
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