52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
package config
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import (
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"fmt"
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"sort"
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"github.com/BurntSushi/toml"
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)
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// Config is used to represent the list of configured Formatters.
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type Config struct {
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Global struct {
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// Excludes is an optional list of glob patterns used to exclude certain files from all formatters.
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Excludes []string
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}
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Names []string `toml:"-"`
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Formatters map[string]*Formatter `toml:"formatter"`
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}
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// ReadFile reads from path and unmarshals toml into a Config instance.
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func ReadFile(path string, names []string) (cfg *Config, err error) {
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if _, err = toml.DecodeFile(path, &cfg); err != nil {
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return nil, fmt.Errorf("failed to decode config file: %w", err)
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}
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// filter formatters based on provided names
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if len(names) > 0 {
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filtered := make(map[string]*Formatter)
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// check if the provided names exist in the config
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for _, name := range names {
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formatterCfg, ok := cfg.Formatters[name]
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if !ok {
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return nil, fmt.Errorf("formatter %v not found in config", name)
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}
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filtered[name] = formatterCfg
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}
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// updated formatters
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cfg.Formatters = filtered
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}
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// sort the formatter names so that, as we construct pipelines, we add formatters in a determinstic fashion. This
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// ensures a deterministic order even when all priority values are the same e.g. 0
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for name := range cfg.Formatters {
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cfg.Names = append(cfg.Names, name)
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}
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sort.Strings(cfg.Names)
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return
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}
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