twitch-bot/plugins.go

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//go:build cgo && (linux || darwin || freebsd)
package main
import (
"os"
"path"
"path/filepath"
"plugin"
"strings"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
"github.com/Luzifer/twitch-bot/v3/plugins"
)
func loadPlugins(pluginDir string) error {
logger := log.WithField("plugin_dir", pluginDir)
d, err := os.Stat(pluginDir)
if err != nil {
if os.IsNotExist(err) {
logger.Debug("Plugin directory not found, skipping")
return nil
}
return errors.Wrap(err, "getting plugin-dir info")
}
if !d.IsDir() {
return errors.New("plugin-dir is not a directory")
}
args := getRegistrationArguments()
return errors.Wrap(filepath.Walk(pluginDir, func(currentPath string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !strings.HasSuffix(currentPath, ".so") {
// Ignore that file, is not a plugin
return nil
}
logger := log.WithField("plugin", path.Base(currentPath))
p, err := plugin.Open(currentPath)
if err != nil {
logger.WithError(err).Error("Unable to open plugin")
return nil
}
f, err := p.Lookup("Register")
if err != nil {
logger.WithError(err).Error("Unable to find register function")
return nil
}
f.(func(plugins.RegistrationArguments) error)(args)
return nil
}), "loading plugins")
}