deltas try to remember filename, lineno

src/ledger/delta.go

@@ -14,29 +14,43 @@ type Delta struct {
 	Value       float64
 	Currency    Currency
 	Description string
-	isSet       bool
 	Transaction string
 	Payee       bool
+
+	isSet    bool
+	fileName string
+	lineNo   int
 }
 
-func newDelta(transaction string, payee bool, d, desc, name string, v float64, c string, isSet bool) Delta {
+func newDelta(transaction string, payee bool, d, desc, name string, v float64, c string, isSet bool, fileName string, lineNo int) Delta {
 	return Delta{
 		Date:        d,
 		Name:        name,
 		Value:       v,
 		Currency:    Currency(c),
 		Description: desc,
-		isSet:       isSet,
 		Transaction: transaction,
 		Payee:       payee,
+
+		isSet:    isSet,
+		fileName: fileName,
+		lineNo:   lineNo,
 	}
 }
 
+func (delta Delta) equivalent(other Delta) bool {
+	delta.fileName = ""
+	delta.lineNo = 0
+	other.fileName = ""
+	other.lineNo = 0
+	return delta == other
+}
+
 func (delta Delta) Debug() string {
-	return fmt.Sprintf("{@%s %s(payee=%v):\"%s\" %s%.2f %s}", delta.Date, delta.Name, delta.Payee, delta.Description, func() string {
+	return fmt.Sprintf("{@%s %s(payee=%v):\"%s\" %s%.2f %s @%s#%d}", delta.Date, delta.Name, delta.Payee, delta.Description, func() string {
 		if !delta.isSet {
 			return ""
 		}
 		return "= "
-	}(), delta.Value, delta.Currency)
+	}(), delta.Value, delta.Currency, delta.fileName, delta.lineNo)
 }

src/ledger/delta_test.go

@@ -6,7 +6,7 @@ import (
 
 func TestDelta(t *testing.T) {
 	d := "2099-08-07"
-	delta := newDelta("x", true, d, "", "name", 34.56, "$", false)
+	delta := newDelta("x", true, d, "", "name", 34.56, "$", false, "", 0)
 
 	if delta.Transaction != "x" {
 		t.Error(delta.Transaction)

src/ledger/file_test.go

@@ -145,7 +145,7 @@ func TestFileAmend(t *testing.T) {
 			} else if filtered := deltas.Like(func(d Delta) bool {
 				c.old.Transaction = d.Transaction
 				c.old.Payee = d.Payee
-				return d == c.old
+				return d.equivalent(c.old)
 			}); len(filtered) != 1 {
 				t.Fatalf("input \n\t%s \ndidnt include old \n\t%+v \nin \n\t%+v: \n\t%+v", c.from, c.old, deltas, filtered)
 			}
@@ -373,6 +373,9 @@ func TestFileDeltas(t *testing.T) {
 			Currency:    USD,
 			Description: "Electricity / Power Bill TG2PJ-2PLP5",
 			Payee:       true,
+
+			fileName: "",
+			lineNo:   0,
 		},
 		{
 			Date:        "2022-12-12",
@@ -380,6 +383,9 @@ func TestFileDeltas(t *testing.T) {
 			Value:       97.92,
 			Currency:    USD,
 			Description: "Electricity / Power Bill TG2PJ-2PLP5",
+
+			fileName: "",
+			lineNo:   0,
 		},
 		{
 			Date:        "2022-12-12",
@@ -388,6 +394,9 @@ func TestFileDeltas(t *testing.T) {
 			Currency:    USD,
 			Description: "Test pay chase TG32S-BT2FF",
 			Payee:       true,
+
+			fileName: "",
+			lineNo:   0,
 		},
 		{
 			Date:        "2022-12-12",
@@ -395,6 +404,9 @@ func TestFileDeltas(t *testing.T) {
 			Value:       1.00,
 			Currency:    USD,
 			Description: "Test pay chase TG32S-BT2FF",
+
+			fileName: "",
+			lineNo:   0,
 		},
 	}
 
@@ -407,7 +419,8 @@ func TestFileDeltas(t *testing.T) {
 	for name, d := range cases {
 		want := d
 		t.Run(name, func(t *testing.T) {
-			f, err := NewFiles("./testdata/" + name + ".dat")
+			fileName := "./testdata/" + name + ".dat"
+			f, err := NewFiles(fileName)
 			if err != nil {
 				t.Fatal(err)
 			}
@@ -421,6 +434,8 @@ func TestFileDeltas(t *testing.T) {
 				t.Error(len(deltas))
 			}
 			for i := range want {
+				want[i].fileName = fileName
+				deltas[i].lineNo = 0
 				if i >= len(deltas) {
 					break
 				}

src/ledger/transaction.go

@@ -110,6 +110,9 @@ type transaction struct {
 	payee       string
 	recipients  []transactionRecipient
 	name        string
+
+	fileName string
+	lineNo   int
 }
 
 func (t transaction) empty() bool {
@@ -126,7 +129,7 @@ type transactionRecipient struct {
 func (t transaction) deltas() Deltas {
 	result := []Delta{}
 	sums := map[string]float64{}
-	for _, recipient := range t.recipients {
+	for i, recipient := range t.recipients {
 		sums[recipient.currency] += recipient.value
 		result = append(result, newDelta(
 			t.name,
@@ -137,6 +140,8 @@ func (t transaction) deltas() Deltas {
 			recipient.value,
 			recipient.currency,
 			recipient.isSet,
+			t.fileName,
+			t.lineNo+i,
 		))
 	}
 	for currency, value := range sums {
@@ -155,6 +160,8 @@ func (t transaction) deltas() Deltas {
 				-1.0*value,
 				currency,
 				false,
+				t.fileName,
+				t.lineNo,
 			))
 		}
 	}
@@ -194,6 +201,8 @@ func (files Files) _transactions(file string) ([]transaction, error) {
 		name := fmt.Sprintf("%s/%d", file, len(result))
 		one, err := readTransaction(name, r)
 		if !one.empty() {
+			one.fileName = file
+			one.lineNo = len(result)
 			result = append(result, one)
 		}
 		if err == io.EOF {