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package config
import (
"errors"
"os"
"github.com/BurntSushi/toml"
"gitlab.com/gitlab-org/gitaly/internal/config"
)
// Config is a container for everything found in the TOML config file
type Config struct {
ListenAddr string `toml:"listen_addr"`
SocketPath string `toml:"socket_path"`
PrimaryServer *GitalyServer `toml:"primary_server"`
SecondaryServers []*GitalyServer `toml:"secondary_server"`
// Whitelist is a list of relative project paths (paths comprised of project
// hashes) that are permitted to use high availability features
Whitelist []string `toml:"whitelist"`
Logging config.Logging `toml:"logging"`
PrometheusListenAddr string `toml:"prometheus_listen_addr"`
}
// GitalyServer allows configuring the servers that RPCs are proxied to
type GitalyServer struct {
Name string `toml:"name"`
ListenAddr string `toml:"listen_addr" split_words:"true"`
}
// FromFile loads the config for the passed file path
func FromFile(filePath string) (Config, error) {
config := &Config{}
cfgFile, err := os.Open(filePath)
if err != nil {
return *config, err
}
defer cfgFile.Close()
_, err = toml.DecodeReader(cfgFile, config)
return *config, err
}
var (
errNoListener = errors.New("no listen address or socket path configured")
errNoGitalyServers = errors.New("no primary gitaly backends configured")
errDuplicateGitalyAddr = errors.New("gitaly listen addresses are not unique")
errGitalyWithoutName = errors.New("all gitaly servers must have a name")
)
var emptyServer = &GitalyServer{}
// Validate establishes if the config is valid
func (c Config) Validate() error {
if c.ListenAddr == "" && c.SocketPath == "" {
return errNoListener
}
if c.PrimaryServer == nil || c.PrimaryServer == emptyServer {
return errNoGitalyServers
}
listenAddrs := make(map[string]bool, len(c.SecondaryServers)+1)
for _, gitaly := range append(c.SecondaryServers, c.PrimaryServer) {
if gitaly.Name == "" {
return errGitalyWithoutName
}
if _, found := listenAddrs[gitaly.ListenAddr]; found {
return errDuplicateGitalyAddr
}
listenAddrs[gitaly.ListenAddr] = true
}
return nil
}
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