telegraf/internal/goplugin/plugin.go

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// +build goplugin
package goplugin
import (
"fmt"
"os"
"path"
"path/filepath"
"plugin"
"strings"
)
// loadExternalPlugins loads external plugins from shared libraries (.so, .dll, etc.)
// in the specified directory.
func LoadExternalPlugins(rootDir string) error {
return filepath.Walk(rootDir, func(pth string, info os.FileInfo, err error) error {
// Stop if there was an error.
if err != nil {
return err
}
// Ignore directories.
if info.IsDir() {
return nil
}
// Ignore files that aren't shared libraries.
ext := strings.ToLower(path.Ext(pth))
if ext != ".so" && ext != ".dll" {
return nil
}
// Load plugin.
_, err = plugin.Open(pth)
if err != nil {
return fmt.Errorf("error loading %s: %s", pth, err)
}
return nil
})
}