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config: add server.cache_priority for configurable /nix-cache-info Priority

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Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ibe9c357ea2c56a967c75be04c2099f536a6a6964
This commit is contained in:
raf 2026-03-06 22:42:57 +03:00
commit a35b3216ec
Signed by: NotAShelf
GPG key ID: 29D95B64378DB4BF
3 changed files with 30 additions and 7 deletions
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17
internal/config/config.go
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@ -43,9 +43,10 @@ type UpstreamConfig struct {
}
type ServerConfig struct {
Listen string `yaml:"listen"`
ReadTimeout Duration `yaml:"read_timeout"`
WriteTimeout Duration `yaml:"write_timeout"`
Listen string `yaml:"listen"`
ReadTimeout Duration `yaml:"read_timeout"`
WriteTimeout Duration `yaml:"write_timeout"`
CachePriority int `yaml:"cache_priority"`
}
type CacheConfig struct {
@ -86,9 +87,10 @@ type Config struct {
func defaults() Config {
return Config{
Server: ServerConfig{
Listen: ":8080",
ReadTimeout: Duration{30 * time.Second},
WriteTimeout: Duration{30 * time.Second},
Listen: ":8080",
ReadTimeout: Duration{30 * time.Second},
WriteTimeout: Duration{30 * time.Second},
CachePriority: 30,
},
Upstreams: []UpstreamConfig{
{URL: "https://cache.nixos.org", Priority: 10},
@ -130,6 +132,9 @@ func (c *Config) Validate() error {
if c.Server.Listen == "" {
return fmt.Errorf("server.listen is empty")
}
if c.Server.CachePriority < 1 {
return fmt.Errorf("server.cache_priority must be >= 1, got %d", c.Server.CachePriority)
}
if c.Cache.LatencyAlpha <= 0 || c.Cache.LatencyAlpha >= 1 {
return fmt.Errorf("cache.latency_alpha must be between 0 and 1 exclusive, got %f", c.Cache.LatencyAlpha)
}