初始化仓库

agent/opencode/opencode_workdir_race_test.go

@@ -0,0 +1,48 @@
+package opencode
+
+import (
+	"context"
+	"path/filepath"
+	"sync"
+	"testing"
+)
+
+// TestOpencodeAgent_WorkDirRaceFreeReaders pins the bug where
+// ListSessions and ProjectMemoryFile read a.workDir (and a.cmd, in
+// ListSessions' case) without holding a.mu, while SetWorkDir writes
+// a.workDir under the lock. Run with -race to detect the data race;
+// with the production fix the test stays clean.
+func TestOpencodeAgent_WorkDirRaceFreeReaders(t *testing.T) {
+	dir := t.TempDir()
+	a := &Agent{workDir: dir, cmd: "opencode"}
+
+	var wg sync.WaitGroup
+	for i := 0; i < 30; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			if i%2 == 0 {
+				a.SetWorkDir(filepath.Join(dir, "a"))
+			} else {
+				a.SetWorkDir(filepath.Join(dir, "b"))
+			}
+		}(i)
+	}
+	for i := 0; i < 30; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			// ListSessions execs `opencode session list`; with a
+			// non-existent binary it returns an error immediately.
+			// The race detector still observes the unlocked field
+			// reads before the exec attempt.
+			_, _ = a.ListSessions(context.Background())
+		}()
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			_ = a.ProjectMemoryFile()
+		}()
+	}
+	wg.Wait()
+}