5e64283a12
* Add ability to fetch logs for a contract and a block * Test contract related code against Infura, so can run on Travis * Add godo task for getLogs
80 lines
1.6 KiB
Go
80 lines
1.6 KiB
Go
package config
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import (
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"os"
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"fmt"
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"path/filepath"
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"path"
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"runtime"
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"errors"
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"net/url"
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"github.com/BurntSushi/toml"
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)
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type Config struct {
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Database Database
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Client Client
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}
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var NewErrConfigFileNotFound = func(environment string) error {
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return errors.New(fmt.Sprintf("No configuration found for environment: %v", environment))
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}
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var NewErrBadConnectionString = func(connectionString string) error {
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return errors.New(fmt.Sprintf("connection string is invalid: %v", connectionString))
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}
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func NewConfig(environment string) (Config, error) {
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filenameWithExtension := fmt.Sprintf("%s.toml", environment)
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absolutePath := filepath.Join(ProjectRoot(), "environments", filenameWithExtension)
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config, err := parseConfigFile(absolutePath)
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if err != nil {
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return Config{}, NewErrConfigFileNotFound(environment)
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} else {
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if !filepath.IsAbs(config.Client.IPCPath) && !isUrl(config.Client.IPCPath) {
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config.Client.IPCPath = filepath.Join(ProjectRoot(), config.Client.IPCPath)
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}
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return config, nil
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}
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}
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func ProjectRoot() string {
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var _, filename, _, _ = runtime.Caller(0)
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return path.Join(path.Dir(filename), "..", "..")
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}
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func isUrl(s string) bool {
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_, err := url.ParseRequestURI(s)
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if err == nil {
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return true
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}
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return false
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}
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func fileExists(s string) bool {
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_, err := os.Stat(s)
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if err == nil {
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return true
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}
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return false
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}
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func parseConfigFile(filePath string) (Config, error) {
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var cfg Config
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if !isUrl(filePath) && !fileExists(filePath) {
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return Config{}, NewErrBadConnectionString(filePath)
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} else {
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_, err := toml.DecodeFile(filePath, &cfg)
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if err != nil {
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return Config{}, err
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}
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return cfg, nil
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}
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}
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