149 lines
4.1 KiB
Markdown
149 lines
4.1 KiB
Markdown
# Fin
|
|
|
|
Fin is a very light, very intuitive config file format! Few symbols, few rules, quite flexible. Has support for comments, arrays, maps, and type guarantees.
|
|
|
|
Mercilessly benchmarked, fully tested. Fin competes toe-to-toe with Go's native JSON library, and handily outperforms the reference TOML and YAML implementations.
|
|
|
|
## Format
|
|
|
|
Fin has very very simple syntax.
|
|
|
|
```
|
|
-- Lua style comments!
|
|
host "localhost"
|
|
port 8080 -- no = for assignment!
|
|
debug true
|
|
|
|
allowed_ips {
|
|
"192.168.1.1"
|
|
"192.168.1.2"
|
|
"10.0.0.1"
|
|
}
|
|
|
|
--[[
|
|
Feel free to space out your explanations!
|
|
|
|
All is well and good.
|
|
]]
|
|
database {
|
|
host "db.example.com"
|
|
port 5432
|
|
credentials {
|
|
username "admin"
|
|
password "secure123"
|
|
}
|
|
}
|
|
```
|
|
|
|
## Installation
|
|
|
|
```bash
|
|
go get git.sharkk.net/Sharkk/Fin
|
|
```
|
|
|
|
## Usage
|
|
|
|
### Basic Usage
|
|
|
|
```go
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"git.sharkk.net/Sharkk/Fin"
|
|
)
|
|
|
|
func main() {
|
|
file, err := os.Open("config.conf")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
defer file.Close()
|
|
|
|
// Pass a string to be loaded by the parser!
|
|
cfg, err := fin.Load(file)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
// Access values with type conversion.
|
|
host, err := cfg.GetString("database.host")
|
|
port, err := cfg.GetInt("database.port")
|
|
debug, err := cfg.GetBool("debug")
|
|
|
|
// Use default values for missing keys
|
|
timeout := cfg.GetOr("timeout", 30).(int)
|
|
|
|
// Get the entire map to traverse directly (cuts traversal time by 50%!)
|
|
entireMap := cfg.GetData()
|
|
other, err := entireMap["database"]["host"].(string)
|
|
}
|
|
```
|
|
|
|
### Type Conversion
|
|
|
|
The parser automatically converts values to appropriate types:
|
|
|
|
```go
|
|
boolValue, err := cfg.GetBool("feature.enabled")
|
|
intValue, err := cfg.GetInt("server.port")
|
|
floatValue, err := cfg.GetFloat("threshold")
|
|
stringValue, err := cfg.GetString("app.name")
|
|
arrayValue, err := cfg.GetArray("allowed_ips")
|
|
mapValue, err := cfg.GetMap("database")
|
|
|
|
// Generic getter (returns any)
|
|
value, err := cfg.Get("some.key")
|
|
```
|
|
|
|
### Accessing Arrays and Maps
|
|
|
|
Access array elements and nested map values using dot notation:
|
|
|
|
```go
|
|
// Access the first element in the array
|
|
firstIP, err := cfg.GetString("allowed_ips.0")
|
|
|
|
// Access deeply nested values
|
|
username, err := cfg.GetString("database.credentials.username")
|
|
```
|
|
|
|
## Performance
|
|
|
|
Fin goes blow-for-blow against Go's standard JSON library, and performs incredibly versus
|
|
the standard TOML and YAML implementations:
|
|
|
|
| Benchmark | Operations | Time (ns/op) | Memory (B/op) | Allocations (allocs/op) |
|
|
|-----------|----------:|-------------:|--------------:|------------------------:|
|
|
| **Small Config Files** |
|
|
| Fin | 1,000,000 | 1,052 | 1,743 | 15 |
|
|
| JSON | 1,000,000 | 1,112 | 1,384 | 23 |
|
|
| YAML | 215,121 | 5,600 | 8,888 | 82 |
|
|
| TOML | 286,334 | 4,483 | 4,520 | 67 |
|
|
| **Medium Config Files** |
|
|
| Fin | 211,863 | 5,696 | 4,056 | 74 |
|
|
| JSON | 261,925 | 4,602 | 5,344 | 89 |
|
|
| YAML | 50,010 | 23,965 | 21,577 | 347 |
|
|
| TOML | 68,420 | 17,639 | 16,348 | 208 |
|
|
| **Large Config Files** |
|
|
| Fin | 55,338 | 21,556 | 12,208 | 207 |
|
|
| JSON | 70,219 | 17,202 | 18,140 | 297 |
|
|
| YAML | 12,536 | 95,945 | 65,568 | 1,208 |
|
|
| TOML | 14,732 | 74,198 | 66,050 | 669 |
|
|
|
|
*AMD Ryzen 9 7950X*
|
|
|
|
## Why Choose Fin?
|
|
|
|
- **Readability**: Simple syntax that's easy for humans to read and write
|
|
- **Flexibility**: Supports various data types and nested structures
|
|
- **Performance**: Fast parsing with minimal overhead
|
|
- **Type Safety**: Strong typing with automatic conversion
|
|
- **Simplicity**: No external dependencies required
|
|
|
|
## License
|
|
|
|
(Sharkk Minimal License)[LICENSE]
|