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chore: move code related to plugin to a dedicated file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| package lintersdb | ||
|
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| import ( | ||
| "fmt" | ||
| "path/filepath" | ||
| "plugin" | ||
|
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| "github.com/spf13/viper" | ||
| "golang.org/x/tools/go/analysis" | ||
|
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| "github.com/golangci/golangci-lint/pkg/config" | ||
| "github.com/golangci/golangci-lint/pkg/golinters/goanalysis" | ||
| "github.com/golangci/golangci-lint/pkg/lint/linter" | ||
| "github.com/golangci/golangci-lint/pkg/logutils" | ||
| "github.com/golangci/golangci-lint/pkg/report" | ||
| ) | ||
|
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| type AnalyzerPlugin interface { | ||
| GetAnalyzers() []*analysis.Analyzer | ||
| } | ||
|
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| // WithCustomLinters loads private linters that are specified in the golangci config file. | ||
| func (m *Manager) WithCustomLinters() *Manager { | ||
| if m.log == nil { | ||
| m.log = report.NewLogWrapper(logutils.NewStderrLog(logutils.DebugKeyEmpty), &report.Data{}) | ||
| } | ||
|
|
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| if m.cfg == nil { | ||
| return m | ||
| } | ||
|
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| for name, settings := range m.cfg.LintersSettings.Custom { | ||
| lc, err := m.loadCustomLinterConfig(name, settings) | ||
|
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| if err != nil { | ||
| m.log.Errorf("Unable to load custom analyzer %s:%s, %v", name, settings.Path, err) | ||
| } else { | ||
| m.nameToLCs[name] = append(m.nameToLCs[name], lc) | ||
| } | ||
| } | ||
|
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| return m | ||
| } | ||
|
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| // loadCustomLinterConfig loads the configuration of private linters. | ||
| // Private linters are dynamically loaded from .so plugin files. | ||
| func (m *Manager) loadCustomLinterConfig(name string, settings config.CustomLinterSettings) (*linter.Config, error) { | ||
| analyzer, err := m.getAnalyzerPlugin(settings.Path) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| m.log.Infof("Loaded %s: %s", settings.Path, name) | ||
|
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| customLinter := goanalysis.NewLinter(name, settings.Description, analyzer.GetAnalyzers(), nil). | ||
| WithLoadMode(goanalysis.LoadModeTypesInfo) | ||
|
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| linterConfig := linter.NewConfig(customLinter) | ||
| linterConfig.EnabledByDefault = true | ||
| linterConfig.IsSlow = false | ||
| linterConfig.WithURL(settings.OriginalURL) | ||
|
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| return linterConfig, nil | ||
| } | ||
|
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| // getAnalyzerPlugin loads a private linter as specified in the config file, | ||
| // loads the plugin from a .so file, | ||
| // and returns the 'AnalyzerPlugin' interface implemented by the private plugin. | ||
| // An error is returned if the private linter cannot be loaded | ||
| // or the linter does not implement the AnalyzerPlugin interface. | ||
| func (m *Manager) getAnalyzerPlugin(path string) (AnalyzerPlugin, error) { | ||
| if !filepath.IsAbs(path) { | ||
| // resolve non-absolute paths relative to config file's directory | ||
| configFilePath := viper.ConfigFileUsed() | ||
| absConfigFilePath, err := filepath.Abs(configFilePath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not get absolute representation of config file path %q: %v", configFilePath, err) | ||
| } | ||
| path = filepath.Join(filepath.Dir(absConfigFilePath), path) | ||
| } | ||
|
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| plug, err := plugin.Open(path) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| symbol, err := plug.Lookup("AnalyzerPlugin") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
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| analyzerPlugin, ok := symbol.(AnalyzerPlugin) | ||
| if !ok { | ||
| return nil, fmt.Errorf("plugin %s does not abide by 'AnalyzerPlugin' interface", path) | ||
| } | ||
|
|
||
| return analyzerPlugin, nil | ||
| } |
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