Fix panic when creating missed contract events

.golangci.yml

@@ -17,13 +17,6 @@ run:
   # list of build tags, all linters use it. Default is empty list.
   build-tags: []
 
-  # which dirs to skip: issues from them won't be reported;
-  # can use regexp here: generated.*, regexp is applied on full path;
-  # default value is empty list, but default dirs are skipped independently
-  # from this option's value (see skip-dirs-use-default).
-  skip-dirs:
-    - cover
-
   # default is true. Enables skipping of directories:
   #   vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
   skip-dirs-use-default: true
@@ -36,9 +29,6 @@ run:
 
 # output configuration options
 output:
-  # colored-line-number|line-number|json|tab|checkstyle|code-climate, default is "colored-line-number"
-  format: colored-line-number
-
   # print lines of code with issue, default is true
   print-issued-lines: true
 
@@ -53,91 +43,62 @@ linters-settings:
     check-shadowing: false
     disable-all: false
 
-  tagliatelle:
-    case:
-      rules:
-        json: goCamel
-        yaml: goCamel
-
+  golint:
+    min-confidence: 1.0
 
   gocritic:
     # Which checks should be enabled; can't be combined with 'disabled-checks';
     # See https://go-critic.github.io/overview#checks-overview
     # To check which checks are enabled run `GL_DEBUG=gocritic golangci-lint run`
     # By default list of stable checks is used.
-    enabled-checks:
-      - argOrder # Diagnostic options
-      - badCond
-      - caseOrder
-      - dupArg
-      - dupBranchBody
-      - dupCase
-      - dupSubExpr
-      - nilValReturn
-      - offBy1
-      - weakCond
-      - boolExprSimplify # Style options here and below.
-      - builtinShadow
-      - emptyFallthrough
-      - hexLiteral
-      - underef
-      - equalFold
+    enabled-tags:
+      - diagnostic
+      - style
+    disabled-checks:
+      # diagnostic
+      - commentedOutCode
+      - uncheckedInlineErr
+
+      # style
+      - exitAfterDefer
+      - ifElseChain
+      - importShadow
+      - octalLiteral
+      - paramTypeCombine
+      - ptrToRefParam
+      - stringsCompare
+      - tooManyResultsChecker
+      - typeDefFirst
+      - typeUnparen
+      - unlabelStmt
+      - unnamedResult
+      - whyNoLint
   revive:
     ignore-generated-header: true
     rules:
-      - name: blank-imports
-        disabled: false
-      - name: bool-literal-in-expr
-        disabled: false
-      - name: confusing-results
-        disabled: false
-      - name: constant-logical-expr
-        disabled: false
-      - name: context-as-argument
-        disabled: false
-      - name: exported
-        disabled: false
-      - name: errorf
-        disabled: false
-      - name: if-return
-        disabled: false
-      - name: increment-decrement
-        disabled: false
-      - name: modifies-value-receiver
-        disabled: false
-      - name: optimize-operands-order
-        disabled: false
-      - name: range-val-in-closure
-        disabled: false
-      - name: struct-tag
-        disabled: false
-      - name: superfluous-else
-        disabled: false
-      - name: time-equal
-        disabled: false
-      - name: unexported-naming
-        disabled: false
-      - name: unexported-return
-        disabled: false
-      - name: unnecessary-stmt
-        disabled: false
-      - name: unreachable-code
-        disabled: false
       - name: package-comments
         disabled: true
 
+  tagliatelle:
+    case:
+      rules:
+        json: goCamel
+        yaml: goCamel
+
 linters:
   disable-all: true
   fast: false
   enable:
-    - tagliatelle
     - gocritic
     - gofmt
     - revive
     - govet
     - misspell
     - typecheck
     - whitespace
+    - tagliatelle
+    - unused
+    - unparam
 
 issues:
   # Maximum issues count per one linter. Set to 0 to disable. Default is 50.

persist/sqlite/addresses.go

@@ -63,8 +63,7 @@ func (s *Store) AddressSiacoinOutputs(address types.Address, offset, limit int)
 		defer rows.Close()
 
 		for rows.Next() {
-			var siacoin types.SiacoinElement
-			err := rows.Scan(decode(&siacoin.ID), &siacoin.LeafIndex, decodeSlice[types.Hash256](&siacoin.MerkleProof), decode(&siacoin.SiacoinOutput.Value), decode(&siacoin.SiacoinOutput.Address), &siacoin.MaturityHeight)
+			siacoin, err := scanSiacoinElement(rows)
 			if err != nil {
 				return fmt.Errorf("failed to scan siacoin element: %w", err)
 			}

persist/sqlite/consensus.go

@@ -29,11 +29,6 @@ func scanStateElement(s scanner) (se types.StateElement, err error) {
 	return
 }
 
-func scanSiacoinElement(s scanner) (se types.SiacoinElement, err error) {
-	err = s.Scan(decode(&se.ID), decode(&se.SiacoinOutput.Value), decodeSlice(&se.MerkleProof), &se.LeafIndex, &se.MaturityHeight, decode(&se.SiacoinOutput.Address))
-	return
-}
-
 func scanAddress(s scanner) (ab addressRef, err error) {
 	err = s.Scan(&ab.ID, decode(&ab.Balance.Siacoins), decode(&ab.Balance.ImmatureSiacoins), &ab.Balance.Siafunds)
 	return

persist/sqlite/consensus_test.go

@@ -143,7 +143,7 @@
 	// check that the utxo was created
 	utxos, err := db.WalletSiacoinOutputs(w.ID, 0, 100)
 	if err != nil {
 		t.Fatal(err)
 	} else if len(utxos) != 1 {
 		t.Fatalf("expected 1 output, got %v", len(utxos))
 	} else if utxos[0].SiacoinOutput.Value.Cmp(expectedPayout) != 0 {
@@ -158,7 +158,7 @@
 	for i := 0; i < 5; i++ {
 		blocks = append(blocks, mineBlock(state, nil, types.VoidAddress))
 		state.Index.ID = blocks[len(blocks)-1].ID()
-		state.Index.Height = state.Index.Height + 1
+		state.Index.Height++
 	}
 	if err := cm.AddBlocks(blocks); err != nil {
 		t.Fatal(err)
@@ -252,7 +252,7 @@
 	for i := 0; i < 10; i++ {
 		blocks = append(blocks, mineBlock(state, nil, types.VoidAddress))
 		state.Index.ID = blocks[len(blocks)-1].ID()
-		state.Index.Height = state.Index.Height + 1
+		state.Index.Height++
 	}
 	if err := cm.AddBlocks(blocks); err != nil {
 		t.Fatal(err)
@@ -451,7 +451,7 @@
 	for i := 0; i < 2; i++ {
 		blocks = append(blocks, mineBlock(state, nil, types.VoidAddress))
 		state.Index.ID = blocks[len(blocks)-1].ID()
-		state.Index.Height = state.Index.Height + 1
+		state.Index.Height++
 	}
 	if err := cm.AddBlocks(blocks); err != nil {
 		t.Fatal(err)

persist/sqlite/store.go

@@ -97,9 +97,9 @@ func doTransaction(db *sql.DB, log *zap.Logger, fn func(tx *txn) error) error {
 		Tx:  dbtx,
 		log: log,
 	}
-	if err = fn(tx); err != nil {
+	if err := fn(tx); err != nil {
 		return err
-	} else if err = tx.Commit(); err != nil {
+	} else if err := tx.Commit(); err != nil {
 		return fmt.Errorf("failed to commit transaction: %w", err)
 	}
 	return nil

persist/sqlite/wallet.go

@@ -11,6 +11,11 @@ import (
 	"go.sia.tech/walletd/wallet"
 )
 
+func scanSiacoinElement(s scanner) (se types.SiacoinElement, err error) {
+	err = s.Scan(decode(&se.ID), decode(&se.SiacoinOutput.Value), decodeSlice(&se.MerkleProof), &se.LeafIndex, &se.MaturityHeight, decode(&se.SiacoinOutput.Address))
+	return
+}
+
 func insertAddress(tx *txn, addr types.Address) (id int64, err error) {
 	const query = `INSERT INTO sia_addresses (sia_address, siacoin_balance, immature_siacoin_balance, siafund_balance) 
 VALUES ($1, $2, $2, 0) ON CONFLICT (sia_address) DO UPDATE SET sia_address=EXCLUDED.sia_address 
@@ -83,7 +88,7 @@ func getWalletEvents(tx *txn, id wallet.ID, offset, limit int) (events []wallet.
 		events = append(events, event)
 		eventIDs = append(eventIDs, eventID)
 	}
-	if err = rows.Err(); err != nil {
+	if err := rows.Err(); err != nil {
 		return nil, nil, err
 	}
 	return
@@ -300,8 +305,7 @@ func (s *Store) WalletSiacoinOutputs(id wallet.ID, offset, limit int) (siacoins
 		defer rows.Close()
 
 		for rows.Next() {
-			var siacoin types.SiacoinElement
-			err := rows.Scan(decode(&siacoin.ID), &siacoin.LeafIndex, decodeSlice[types.Hash256](&siacoin.MerkleProof), decode(&siacoin.SiacoinOutput.Value), decode(&siacoin.SiacoinOutput.Address), &siacoin.MaturityHeight)
+			siacoin, err := scanSiacoinElement(rows)
 			if err != nil {
 				return fmt.Errorf("failed to scan siacoin element: %w", err)
 			}

wallet/wallet.go

@@ -619,7 +619,7 @@ func AppliedEvents(cs consensus.State, b types.Block, cu ChainUpdate, relevant f
 			}
 		} else {
 			for i := range fce.FileContract.MissedProofOutputs {
-				if !relevant(fce.FileContract.ValidProofOutputs[i].Address) {
+				if !relevant(fce.FileContract.MissedProofOutputs[i].Address) {
 					continue
 				}
 
@@ -628,7 +628,7 @@ func AppliedEvents(cs consensus.State, b types.Block, cu ChainUpdate, relevant f
 					FileContract:  fce,
 					SiacoinOutput: sces[outputID],
 					Missed:        true,
-				}, []types.Address{fce.FileContract.ValidProofOutputs[i].Address})
+				}, []types.Address{fce.FileContract.MissedProofOutputs[i].Address})
 			}
 		}
 	})