mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2024-06-01 19:48:01 -04:00
1f036eb565
it's not necessary and in fact is an error to make copies of a sync.Mutex due to how we're using instances of the properties type
134 lines
2.8 KiB
Go
134 lines
2.8 KiB
Go
// This file is part of Gopher2600.
|
|
//
|
|
// Gopher2600 is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Gopher2600 is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
package properties
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/jetsetilly/gopher2600/logger"
|
|
"github.com/jetsetilly/gopher2600/resources"
|
|
)
|
|
|
|
const propertiesFile = "stella.pro"
|
|
|
|
type Entry struct {
|
|
Hash string
|
|
Name string
|
|
Manufacturer string
|
|
Note string
|
|
Rarity string
|
|
Model string
|
|
}
|
|
|
|
func (e Entry) IsValid() bool {
|
|
return len(e.Hash) > 0
|
|
}
|
|
|
|
type Properties struct {
|
|
available bool
|
|
entries map[string]Entry
|
|
}
|
|
|
|
func Load() (Properties, error) {
|
|
pro := Properties{
|
|
entries: make(map[string]Entry),
|
|
}
|
|
|
|
path, err := resources.JoinPath(propertiesFile)
|
|
if err != nil {
|
|
return Properties{}, fmt.Errorf("properties: %w", err)
|
|
}
|
|
|
|
f, err := os.Open(path)
|
|
if err != nil {
|
|
return Properties{}, fmt.Errorf("properties: %w", err)
|
|
}
|
|
defer f.Close()
|
|
|
|
scanner := bufio.NewScanner(f)
|
|
|
|
var entry Entry
|
|
var line int
|
|
var rejected int
|
|
|
|
for scanner.Scan() {
|
|
line++
|
|
|
|
flds := strings.SplitN(scanner.Text(), " ", 2)
|
|
if len(flds) < 2 {
|
|
continue // for loop
|
|
}
|
|
|
|
flds[0] = strings.Trim(flds[0], "\"")
|
|
flds[1] = strings.Trim(flds[1], "\"")
|
|
switch strings.ToUpper(flds[0]) {
|
|
case "CART.MD5":
|
|
// create new entry
|
|
if len(entry.Hash) == 32 {
|
|
pro.entries[entry.Hash] = entry
|
|
}
|
|
|
|
// prepare new entry if has is valid
|
|
if len(flds[1]) != 32 {
|
|
logger.Logf(logger.Allow, "properties", "invalid hash entry at line %d", line)
|
|
rejected++
|
|
} else {
|
|
entry = Entry{
|
|
Hash: flds[1],
|
|
}
|
|
}
|
|
|
|
case "CART.NAME":
|
|
entry.Name = flds[1]
|
|
|
|
case "CART.MANUFACTURER":
|
|
entry.Manufacturer = flds[1]
|
|
|
|
case "CART.NOTE":
|
|
entry.Note = flds[1]
|
|
|
|
case "CART.RARITY":
|
|
entry.Rarity = flds[1]
|
|
|
|
case "CART.MODEL":
|
|
entry.Model = flds[1]
|
|
}
|
|
}
|
|
|
|
if err = scanner.Err(); err != nil {
|
|
return Properties{}, fmt.Errorf("pro: %w", err)
|
|
}
|
|
|
|
logger.Logf(logger.Allow, "properties", "%d entries loaded", len(pro.entries))
|
|
if rejected > 0 {
|
|
logger.Logf(logger.Allow, "properties", "%d entries rejected", rejected)
|
|
}
|
|
|
|
return pro, nil
|
|
}
|
|
|
|
// Find the property entry for the ROM with the supplied md5 hash
|
|
func (pro Properties) Lookup(md5Hash string) Entry {
|
|
if e, ok := pro.entries[md5Hash]; ok {
|
|
return e
|
|
}
|
|
|
|
return Entry{}
|
|
}
|