plan 9: undo review matches review, --min-age validated, future mtimes, rule names, conflict enum, dependency gate, absolute tool paths

1 files changed, 11 insertions, 1 deletions

diff --git a/internal/scan/scan.go b/internal/scan/scan.go
index 77cca66..bd717e0 100644
--- a/internal/scan/scan.go
+++ b/internal/scan/scan.go
@@ -229,7 +229,7 @@ func (w *walker) walk(dir, relDir string, depth int, entries []os.DirEntry) erro
 			w.result.Skipped = append(w.result.Skipped, Skipped{Rel: rel, Reason: Busy})
 			continue
 		}
-		if w.opt.Now.Sub(info.ModTime()) < w.opt.MinAge {
+		if Age(w.opt.Now, info.ModTime()) < w.opt.MinAge {
 			w.result.Skipped = append(w.result.Skipped, Skipped{Rel: rel, Reason: TooNew})
 			continue
 		}
@@ -252,3 +252,13 @@ func (w *walker) isBusy(name string, names map[string]bool) bool {
 	}
 	return false
 }
+
+// Age is how long ago mtime was, at now. A modification time ahead of the
+// clock (a skewed server, an archive's timestamps) counts as brand new: age
+// 0, so min-age 0 still considers the file (review cli F5).
+func Age(now, mtime time.Time) time.Duration {
+	if a := now.Sub(mtime); a > 0 {
+		return a
+	}
+	return 0
+}