From 3984c91733166d63d43fd5d4ca0a61a46e666a26 Mon Sep 17 00:00:00 2001
From: Taras Madan <tarasmadan@google.com>
Date: Wed, 20 Aug 2025 10:26:12 +0200
Subject: pkg/manager: store tail reports

Send only the first report to dashboard.
---
 pkg/report/report.go      | 15 +++++++++++++++
 pkg/report/report_test.go | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)

(limited to 'pkg/report')

diff --git a/pkg/report/report.go b/pkg/report/report.go
index 088f8c089..b4f93e3ac 100644
--- a/pkg/report/report.go
+++ b/pkg/report/report.go
@@ -943,3 +943,18 @@ func TitleToCrashType(title string) crash.Type {
 	}
 	return crash.UnknownType
 }
+
+const reportSeparator = "\n<<<<<<<<<<<<<<< tail report >>>>>>>>>>>>>>>\n\n"
+
+func MergeReportBytes(reps []*Report) []byte {
+	var res []byte
+	for _, rep := range reps {
+		res = append(res, rep.Report...)
+		res = append(res, []byte(reportSeparator)...)
+	}
+	return res
+}
+
+func SplitReportBytes(data []byte) [][]byte {
+	return bytes.Split(data, []byte(reportSeparator))
+}
diff --git a/pkg/report/report_test.go b/pkg/report/report_test.go
index 2184cd411..8c863fe8d 100644
--- a/pkg/report/report_test.go
+++ b/pkg/report/report_test.go
@@ -510,3 +510,38 @@ BCDEF`), Truncate([]byte(`0123456789ABCDEF`), 0, 5))
 
 DEF`), Truncate([]byte(`0123456789ABCDEF`), 4, 3))
 }
+
+func TestSplitReportBytes(t *testing.T) {
+	tests := []struct {
+		name      string
+		input     []byte
+		wantFirst string
+	}{
+		{
+			name:      "empty",
+			input:     nil,
+			wantFirst: "",
+		},
+		{
+			name:      "single",
+			input:     []byte("report1"),
+			wantFirst: "report1",
+		},
+		{
+			name:      "split in the middle",
+			input:     []byte("report1" + reportSeparator + "report2"),
+			wantFirst: "report1",
+		},
+		{
+			name:      "split in the middle, save new line",
+			input:     []byte("report1\n" + reportSeparator + "report2"),
+			wantFirst: "report1\n",
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			splitted := SplitReportBytes(test.input)
+			assert.Equal(t, test.wantFirst, string(splitted[0]))
+		})
+	}
+}
-- 
cgit mrf-deployment