update: go version & deps

.github/workflows/assets.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.24.x
+          go-version: 1.25.x
       - name: Build and pack for linux-amd64
         run: GOOS=linux GOARCH=amd64 go build -o nmap-formatter && tar -czvf nmap-formatter-linux-amd64.tar.gz nmap-formatter
       - name: Build and pack for linux-arm64

.github/workflows/go.yml

@@ -12,23 +12,23 @@ jobs:
   lint:
     strategy:
       matrix:
-        go-version: [1.24.x]
+        go-version: [1.25.x]
     runs-on: ubuntu-latest
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go-version }}
       - uses: actions/checkout@v4
       - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@v4
+        uses: golangci/golangci-lint-action@v8
         with:
           version: latest
           args: --timeout 10m
   test:
     strategy:
       matrix:
-        go-version: [1.24.x]
+        go-version: [1.25.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
@@ -47,7 +47,7 @@ jobs:
   coverage:
     strategy:
       matrix:
-        go-version: [1.24.x]
+        go-version: [1.25.x]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

CLAUDE.md

@@ -115,12 +115,12 @@ All major components have corresponding `_test.go` files. Tests typically:
 - Test filter expressions with various host/port conditions
 - Validate format-specific output structure
 
-The CI runs tests on Go 1.24.x across Linux, macOS, and Windows.
+The CI runs tests on Go 1.25.x across Linux, macOS, and Windows.
 
 ## Module Information
 
 - Module path: `github.com/vdjagilev/nmap-formatter/v3`
-- Go version: 1.24
+- Go version: 1.25
 - Uses go modules for dependency management
 
 ## Key Dependencies

Dockerfile

@@ -1,12 +1,12 @@
-FROM golang:1.24-alpine AS builder
+FROM golang:1.25-alpine AS builder
 
 WORKDIR /src/
 COPY . /src/
 
 RUN apk add --update gcc musl-dev
 RUN CGO_ENABLED=1 go build -o /bin/nmap-formatter
 
-FROM alpine:3.21
+FROM alpine:3.22
 
 COPY --from=builder /bin/nmap-formatter /bin/nmap-formatter
 

cmd/root.go

@@ -48,7 +48,7 @@ var config = formatter.Config{
 }
 
 // VERSION is describing current version of the nmap-formatter
-const VERSION string = "3.0.2"
+const VERSION string = "3.1.0"
 
 var workflow formatter.Workflow
 
@@ -184,10 +184,14 @@ func run(cmd *cobra.Command, args []string) error {
 	}
 
 	if config.Writer != nil {
-		config.Writer.Close()
+		if closeErr := config.Writer.Close(); closeErr != nil {
+			log.Printf("Error closing writer: %v", closeErr)
+		}
 	}
 	if config.InputFileConfig.Source != nil {
-		config.InputFileConfig.Source.Close()
+		if closeErr := config.InputFileConfig.Source.Close(); closeErr != nil {
+			log.Printf("Error closing input source: %v", closeErr)
+		}
 	}
 
 	return nil

cmd/validation.go

@@ -37,8 +37,8 @@ func validateIOFiles(config formatter.Config) error {
 		if err != nil {
 			return fmt.Errorf("unable to create output file: %s", err)
 		}
-		outputFile.Close()
-		os.Remove(string(config.OutputFile))
+		_ = outputFile.Close()
+		_ = os.Remove(string(config.OutputFile))
 	}
 	return nil
 }
@@ -56,7 +56,9 @@ func validateTemplateConfig(config formatter.Config) error {
 		if err != nil {
 			return fmt.Errorf("could not read template file: %v", err)
 		}
-		defer file.Close()
+		defer func() {
+			_ = file.Close()
+		}()
 	}
 	return nil
 }

formatter/file.go

@@ -21,6 +21,8 @@ type InputFileConfig struct {
 // ExistsOpen tries to open a file for reading, returning an error if it fails
 func (i *InputFileConfig) ExistsOpen() error {
 	f, err := os.Open(i.Path)
-	f.Close()
-	return err
+	if err != nil {
+		return err
+	}
+	return f.Close()
 }

formatter/file_test.go

@@ -16,10 +16,12 @@ func TestInputFileConfig_ExistsOpen(t *testing.T) {
 		if err != nil {
 			t.Errorf("error creating temporary file: %s", err)
 		}
-		defer f.Close()
+		defer func() {
+			_ = f.Close()
+		}()
 	}
 	afterFunc := func(name string) {
-		os.Remove(name)
+		_ = os.Remove(name)
 	}
 	tests := []struct {
 		name      string

formatter/formatter.go

@@ -60,7 +60,9 @@ func TemplateContent(f Formatter, c *Config) (string, error) {
 		if err != nil {
 			return "", err
 		}
-		defer file.Close()
+		defer func() {
+			_ = file.Close()
+		}()
 		content, err := io.ReadAll(file)
 		if err != nil {
 			return "", err

formatter/formatter_csv.go

@@ -19,11 +19,11 @@ func (f *CSVFormatter) Format(td *TemplateData, templateContent string) (err err
 func (f *CSVFormatter) convert(td *TemplateData) (data [][]string) {
 	data = append(data, []string{"IP", "Port", "Protocol", "State", "Service", "Reason", "Product", "Version", "Extra info"})
 	for i := range td.NMAPRun.Host {
-		var host *Host = &td.NMAPRun.Host[i]
+		host := &td.NMAPRun.Host[i]
 		address := fmt.Sprintf("%s (%s)", host.JoinedAddresses("/"), host.Status.State)
 		data = append(data, []string{address, "", "", "", "", "", "", "", ""})
 		for j := range host.Port {
-			var port *Port = &host.Port[j]
+			port := &host.Port[j]
 			data = append(
 				data,
 				[]string{

formatter/formatter_dot.go

@@ -99,7 +99,7 @@ func portStateColor(port *Port) string {
 
 // hopList function returns a map with a list of hops where very first hop is `startHop` (scanner itself)
 func hopList(hops []Hop, startHop string, endHopName string, endHopKey int) map[string]string {
-	var hopList map[string]string = map[string]string{}
+	hopList := map[string]string{}
 	var previous *Hop = nil
 	for i := range hops {
 		// Skip last hop, because it has the same IP as the target server

formatter/formatter_test.go

@@ -108,10 +108,12 @@ func TestTemplateContent(t *testing.T) {
 		if err != nil {
 			t.Errorf("failed to create a file: %v", err)
 		}
-		defer f.Close()
+		defer func() {
+			_ = f.Close()
+		}()
 	}
 	afterFunc := func(path string) {
-		os.Remove(path)
+		_ = os.Remove(path)
 	}
 	tests := []struct {
 		name      string

formatter/nmap_host.go

@@ -25,7 +25,7 @@ type Host struct {
 
 // JoinedAddresses joins all possible host addresses with a delimiter string
 func (h *Host) JoinedAddresses(delimiter string) string {
-	var addr string = ""
+	addr := ""
 	for i := range h.HostAddress {
 		// First element does not require prepended delimiter
 		if i == 0 {
@@ -39,7 +39,7 @@ func (h *Host) JoinedAddresses(delimiter string) string {
 
 // JoinedHostNames returns a joined string of host names with a provided delimiter
 func (h *Host) JoinedHostNames(delimiter string) string {
-	var hostAddr string = ""
+	hostAddr := ""
 	for i := range h.HostNames.HostName {
 		// First element does not require prepended delimiter
 		if i != 0 {

formatter/nmap_run.go

@@ -59,7 +59,7 @@ type StatHosts struct {
 // AllHops is getting all possible hops that occurred during the scan and
 // merges them uniquely into one map
 func (n *NMAPRun) AllHops() map[string]Hop {
-	var hops map[string]Hop = map[string]Hop{}
+	hops := map[string]Hop{}
 	for i := range n.Host {
 		for j := range n.Host[i].Trace.Hops {
 			// Skip the last hop, because it has the same IP as the target server

formatter/sqlite_db.go

@@ -67,7 +67,9 @@ func (s *SqliteDB) schemaExists() bool {
 	if err != nil {
 		return false
 	}
-	defer rows.Close()
+	defer func() {
+		_ = rows.Close()
+	}()
 	return true
 }
 
@@ -99,7 +101,9 @@ func (s *SqliteDB) populate(n *NMAPRun) error {
 
 // finish is a place where commit or rollback should happen and database connection is closed
 func (s *SqliteDB) finish(err error) error {
-	defer s.db.Close()
+	defer func() {
+		_ = s.db.Close()
+	}()
 	if err != nil {
 		rollbackErr := s.tx.Rollback()
 		if rollbackErr != nil {
@@ -122,7 +126,9 @@ func (s *SqliteDB) insertReturnID(sql string, args ...any) (int64, error) {
 	if err != nil {
 		return 0, err
 	}
-	defer insert.Close()
+	defer func() {
+		_ = insert.Close()
+	}()
 	result, err := insert.Exec(args...)
 	if err != nil {
 		return 0, err
@@ -137,7 +143,9 @@ func (s *SqliteDB) insert(sql string, args ...any) error {
 	if err != nil {
 		return err
 	}
-	defer insert.Close()
+	defer func() {
+		_ = insert.Close()
+	}()
 	_, err = insert.Exec(args...)
 	return err
 }

formatter/workflow_test.go

@@ -148,12 +148,16 @@ func TestMainWorkflow_parse(t *testing.T) {
 					t.Errorf("Could not write file, error %v", err)
 				}
 				// deferring file removal after the test
-				defer os.Remove(name)
+				defer func() {
+					_ = os.Remove(name)
+				}()
 				f, err := os.Open(name)
 				if err != nil {
 					t.Errorf("could not read source file: %v", err)
 				}
-				defer f.Close()
+				defer func() {
+					_ = f.Close()
+				}()
 				tt.w.Config.InputFileConfig = InputFileConfig{
 					Path:   name,
 					Source: f,
@@ -213,8 +217,12 @@ func TestMainWorkflow_Execute(t *testing.T) {
 				if err != nil {
 					t.Errorf("Could not write file, error %v", err)
 				}
-				defer os.Remove(name)
-				defer os.Remove(name + "_output")
+				defer func() {
+					_ = os.Remove(name)
+				}()
+				defer func() {
+					_ = os.Remove(name + "_output")
+				}()
 				tt.w.Config.InputFileConfig = InputFileConfig{
 					Path: name,
 				}

go.mod

@@ -1,42 +1,42 @@
 module github.com/vdjagilev/nmap-formatter/v3
 
-go 1.24
+go 1.25
 
 require (
-	github.com/expr-lang/expr v1.17.2
+	github.com/expr-lang/expr v1.17.6
 	github.com/google/uuid v1.6.0
-	github.com/mattn/go-sqlite3 v1.14.24
-	github.com/spf13/cobra v1.9.1
-	github.com/xuri/excelize/v2 v2.9.0
-	golang.org/x/net v0.38.0
-	oss.terrastruct.com/d2 v0.6.9
+	github.com/mattn/go-sqlite3 v1.14.32
+	github.com/spf13/cobra v1.10.1
+	github.com/xuri/excelize/v2 v2.10.0
+	golang.org/x/net v0.46.0
+	oss.terrastruct.com/d2 v0.7.1
 )
 
 require (
-	github.com/PuerkitoBio/goquery v1.10.2 // indirect
-	github.com/alecthomas/chroma/v2 v2.15.0 // indirect
+	github.com/PuerkitoBio/goquery v1.10.3 // indirect
+	github.com/alecthomas/chroma/v2 v2.20.0 // indirect
+	github.com/andybalholm/brotli v1.2.0 // indirect
 	github.com/andybalholm/cascadia v1.3.3 // indirect
 	github.com/dlclark/regexp2 v1.11.5 // indirect
-	github.com/dop251/goja v0.0.0-20250309171923-bcd7cc6bf64c // indirect
+	github.com/dop251/goja v0.0.0-20251008123653-cf18d89f3cf6 // indirect
 	github.com/go-sourcemap/sourcemap v2.1.4+incompatible // indirect
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
-	github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e // indirect
+	github.com/google/pprof v0.0.0-20251007162407-5df77e3f7d1d // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
-	github.com/mazznoer/csscolorparser v0.1.5 // indirect
-	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mazznoer/csscolorparser v0.1.6 // indirect
 	github.com/richardlehane/mscfb v1.0.4 // indirect
 	github.com/richardlehane/msoleps v1.0.4 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/spf13/pflag v1.0.6 // indirect
-	github.com/xuri/efp v0.0.0-20250227110027-3491fafc2b79 // indirect
-	github.com/xuri/nfp v0.0.0-20250226145837-86d5fc24b2ba // indirect
-	github.com/yuin/goldmark v1.7.8 // indirect
-	golang.org/x/crypto v0.36.0 // indirect
-	golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 // indirect
-	golang.org/x/image v0.25.0 // indirect
-	golang.org/x/text v0.23.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/tiendc/go-deepcopy v1.7.1 // indirect
+	github.com/xuri/efp v0.0.1 // indirect
+	github.com/xuri/nfp v0.0.2-0.20250530014748-2ddeb826f9a9 // indirect
+	github.com/yuin/goldmark v1.7.13 // indirect
+	golang.org/x/crypto v0.43.0 // indirect
+	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
+	golang.org/x/image v0.32.0 // indirect
+	golang.org/x/text v0.30.0 // indirect
 	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
-	gonum.org/v1/plot v0.16.0 // indirect
 	oss.terrastruct.com/util-go v0.0.0-20250213174338-243d8661088a // indirect
 )