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package task
import (
"io"
"os"
)
// debugConfig groups the optional debug-logging state for the task package.
// Collecting related vars into a struct makes the mutable state explicit and
// allows the logger to be swapped or reset cleanly without touching unrelated
// package globals.
type debugConfig struct {
writer io.Writer
file *os.File // tracked separately so it can be closed on reconfiguration
}
// dbg holds the active debug-logging configuration for this package.
// It is written only via SetDebugLog and read only in run().
var dbg debugConfig
// SetDebugLog enables logging of executed commands to the given file.
// Passing an empty path disables logging and closes any previously opened file.
func SetDebugLog(path string) error {
// Close existing debug file if open before re-configuring.
if dbg.file != nil {
_ = dbg.file.Close()
dbg.file = nil
dbg.writer = nil
}
if path == "" {
return nil
}
f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
if err != nil {
return err
}
dbg.file = f
dbg.writer = f
return nil
}
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