Merge pull request #11 from Belphemur/renovate

perf(error): better deal with deferred errors

.github/workflows/test.yml

@@ -32,12 +32,16 @@ jobs:
           set -o pipefail
           go test -v 2>&1 ./... -coverprofile=coverage.txt | tee test-results.txt
       - name: Analyse test results
-        run: go-junit-report < test-results.txt > report.xml
+        if: ${{ !cancelled() }}
+        run: go-junit-report < test-results.txt > junit.xml
       - name: Upload test result artifact
+        if: ${{ !cancelled() }}
         uses: actions/upload-artifact@v4
         with:
           name: test-results
-          path: test-results.txt
+          path: | 
+            test-results.txt
+            junit.xml
           retention-days: 7
       - name: Upload results to Codecov
         uses: codecov/codecov-action@v4

cbz/cbz_creator.go

@@ -4,6 +4,7 @@ import (
 	"archive/zip"
 	"fmt"
 	"github.com/belphemur/CBZOptimizer/manga"
+	"github.com/belphemur/CBZOptimizer/utils/errs"
 	"os"
 	"time"
 )
@@ -14,14 +15,14 @@ func WriteChapterToCBZ(chapter *manga.Chapter, outputFilePath string) error {
 	if err != nil {
 		return fmt.Errorf("failed to create .cbz file: %w", err)
 	}
-	defer zipFile.Close()
+	defer errs.Capture(&err, zipFile.Close, "failed to close .cbz file")
 
 	// Create a new ZIP writer
 	zipWriter := zip.NewWriter(zipFile)
 	if err != nil {
 		return err
 	}
-	defer zipWriter.Close()
+	defer errs.Capture(&err, zipWriter.Close, "failed to close .cbz writer")
 
 	// Write each page to the ZIP archive
 	for _, page := range chapter.Pages {

cbz/cbz_loader.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"github.com/araddon/dateparse"
 	"github.com/belphemur/CBZOptimizer/manga"
+	"github.com/belphemur/CBZOptimizer/utils/errs"
 	"io"
 	"path/filepath"
 	"strings"
@@ -18,7 +19,7 @@ func LoadChapter(filePath string) (*manga.Chapter, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to open .cbz file: %w", err)
 	}
-	defer r.Close()
+	defer errs.Capture(&err, r.Close, "failed to close opened .cbz file")
 
 	chapter := &manga.Chapter{
 		FilePath: filePath,
@@ -39,62 +40,64 @@ func LoadChapter(filePath string) (*manga.Chapter, error) {
 		if f.FileInfo().IsDir() {
 			continue
 		}
-		// Open the file inside the zip
-		rc, err := f.Open()
-		if err != nil {
-			return nil, fmt.Errorf("failed to open file inside .cbz: %w", err)
-		}
-
-		// Determine the file extension
-		ext := strings.ToLower(filepath.Ext(f.Name))
-
-		if ext == ".xml" && strings.ToLower(filepath.Base(f.Name)) == "comicinfo.xml" {
-			// Read the ComicInfo.xml file content
-			xmlContent, err := io.ReadAll(rc)
+		err := func() error {
+			// Open the file inside the zip
+			rc, err := f.Open()
 			if err != nil {
-				rc.Close()
-				return nil, fmt.Errorf("failed to read ComicInfo.xml content: %w", err)
+				return fmt.Errorf("failed to open file inside .cbz: %w", err)
 			}
-			chapter.ComicInfoXml = string(xmlContent)
-		} else if !chapter.IsConverted && ext == ".txt" && strings.ToLower(filepath.Base(f.Name)) == "converted.txt" {
-			textContent, err := io.ReadAll(rc)
-			if err != nil {
-				rc.Close()
-				return nil, fmt.Errorf("failed to read Converted.xml content: %w", err)
-			}
-			scanner := bufio.NewScanner(bytes.NewReader(textContent))
-			if scanner.Scan() {
-				convertedTime := scanner.Text()
-				chapter.ConvertedTime, err = dateparse.ParseAny(convertedTime)
+
+			defer errs.Capture(&err, rc.Close, "failed to close file inside .cbz")
+
+			// Determine the file extension
+			ext := strings.ToLower(filepath.Ext(f.Name))
+
+			if ext == ".xml" && strings.ToLower(filepath.Base(f.Name)) == "comicinfo.xml" {
+				// Read the ComicInfo.xml file content
+				xmlContent, err := io.ReadAll(rc)
 				if err != nil {
-					rc.Close()
-					return nil, fmt.Errorf("failed to parse converted time: %w", err)
+					return fmt.Errorf("failed to read ComicInfo.xml content: %w", err)
+				}
+				chapter.ComicInfoXml = string(xmlContent)
+			} else if !chapter.IsConverted && ext == ".txt" && strings.ToLower(filepath.Base(f.Name)) == "converted.txt" {
+				textContent, err := io.ReadAll(rc)
+				if err != nil {
+					return fmt.Errorf("failed to read Converted.xml content: %w", err)
+				}
+				scanner := bufio.NewScanner(bytes.NewReader(textContent))
+				if scanner.Scan() {
+					convertedTime := scanner.Text()
+					chapter.ConvertedTime, err = dateparse.ParseAny(convertedTime)
+					if err != nil {
+						return fmt.Errorf("failed to parse converted time: %w", err)
+					}
+					chapter.IsConverted = true
+				}
+			} else {
+				// Read the file contents for page
+				buf := new(bytes.Buffer)
+				_, err = io.Copy(buf, rc)
+				if err != nil {
+					return fmt.Errorf("failed to read file contents: %w", err)
 				}
-				chapter.IsConverted = true
-			}
-		} else {
-			// Read the file contents for page
-			buf := new(bytes.Buffer)
-			_, err = io.Copy(buf, rc)
-			if err != nil {
-				rc.Close()
-				return nil, fmt.Errorf("failed to read file contents: %w", err)
-			}
 
-			// Create a new Page object
-			page := &manga.Page{
-				Index:      uint16(len(chapter.Pages)), // Simple index based on order
-				Extension:  ext,
-				Size:       uint64(buf.Len()),
-				Contents:   buf,
-				IsSplitted: false,
-			}
+				// Create a new Page object
+				page := &manga.Page{
+					Index:      uint16(len(chapter.Pages)), // Simple index based on order
+					Extension:  ext,
+					Size:       uint64(buf.Len()),
+					Contents:   buf,
+					IsSplitted: false,
+				}
 
-			// Add the page to the chapter
-			chapter.Pages = append(chapter.Pages, page)
+				// Add the page to the chapter
+				chapter.Pages = append(chapter.Pages, page)
+			}
+			return nil
+		}()
+		if err != nil {
+			return nil, err
 		}
-		rc.Close()
-
 	}
 
 	return chapter, nil

cbz/cbz_loader_test.go

@@ -24,7 +24,7 @@ func TestLoadChapter(t *testing.T) {
 		},
 		{
 			name:               "Converted Chapter",
-			filePath:           "../testdata/Chapter 1_converted.cbz",
+			filePath:           "../testdata/Chapter 10_converted.cbz",
 			expectedPages:      107,
 			expectedSeries:     "<Series>Boundless Necromancer</Series>",
 			expectedConversion: true,

cmd/watch_command.go

@@ -76,7 +76,7 @@ func WatchCommand(_ *cobra.Command, args []string) error {
 	if err != nil {
 		return fmt.Errorf("failed to prepare converter: %v", err)
 	}
-	log.Printf("Watching [%s] with [override: %t, quality: %d, format: %s]", path, override, quality, converterType.String())
+	log.Printf("Watching [%s] with [override: %t, quality: %d, format: %s, split: %t]", path, override, quality, converterType.String(), split)
 
 	events := make(chan inotifywaitgo.FileEvent)
 	errors := make(chan error)

go.mod

@@ -11,8 +11,8 @@ require (
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/viper v1.19.0
 	github.com/thediveo/enumflag/v2 v2.0.5
-	golang.org/x/exp v0.0.0-20240823005443-9b4947da3948
-	golang.org/x/image v0.19.0
+	golang.org/x/exp v0.0.0-20240909161429-701f63a606c0
+	golang.org/x/image v0.20.0
 )
 
 require (
@@ -43,7 +43,7 @@ require (
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
 	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/text v0.17.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -118,18 +118,18 @@ go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=
 go.uber.org/multierr v1.9.0/go.mod h1:X2jQV1h+kxSjClGpnseKVIxpmcjrj7MNnI0bnlfKTVQ=
-golang.org/x/exp v0.0.0-20240823005443-9b4947da3948 h1:kx6Ds3MlpiUHKj7syVnbp57++8WpuKPcR5yjLBjvLEA=
-golang.org/x/exp v0.0.0-20240823005443-9b4947da3948/go.mod h1:akd2r19cwCdwSwWeIdzYQGa/EZZyqcOdwWiwj5L5eKQ=
-golang.org/x/image v0.19.0 h1:D9FX4QWkLfkeqaC62SonffIIuYdOk/UE2XKUBgRIBIQ=
-golang.org/x/image v0.19.0/go.mod h1:y0zrRqlQRWQ5PXaYCOMLTW2fpsxZ8Qh9I/ohnInJEys=
+golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 h1:e66Fs6Z+fZTbFBAxKfP3PALWBtpfqks2bwGcexMxgtk=
+golang.org/x/exp v0.0.0-20240909161429-701f63a606c0/go.mod h1:2TbTHSBQa924w8M6Xs1QcRcFwyucIwBGpK1p2f1YFFY=
+golang.org/x/image v0.20.0 h1:7cVCUjQwfL18gyBJOmYvptfSHS8Fb3YUDtfLIZ7Nbpw=
+golang.org/x/image v0.20.0/go.mod h1:0a88To4CYVBAHp5FXJm8o7QbUl37Vd85ply1vyD8auM=
 golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs=
 golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
 golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
 golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
-golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
-golang.org/x/tools v0.24.0 h1:J1shsA93PJUEVaUSaay7UXAyE8aimq3GW0pjlolpa24=
-golang.org/x/tools v0.24.0/go.mod h1:YhNqVBIfWHdzvTLs0d8LCuMhkKUgSUKldakyV7W/WDQ=
+golang.org/x/text v0.18.0 h1:XvMDiNzPAl0jr17s6W9lcaIhGUfUORdGCNsuLmPG224=
+golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+golang.org/x/tools v0.25.0 h1:oFU9pkj/iJgs+0DT+VMHrx+oBKs/LJMV+Uvg78sl+fE=
+golang.org/x/tools v0.25.0/go.mod h1:/vtpO8WL1N9cQC3FN5zPqb//fRXskFHbLKk4OW1Q7rg=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=

renovate.json

@@ -2,5 +2,16 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "packageRules": [
+    {
+      "matchUpdateTypes": [
+        "minor",
+        "patch",
+        "digest"
+      ],
+      "matchCurrentVersion": "!/^0/",
+      "automerge": true
+    }
   ]
 }

utils/errs/errors_defer.go

@@ -0,0 +1,16 @@
+package errs
+
+import (
+	"errors"
+	"fmt"
+)
+
+// Capture runs errFunc and assigns the error, if any, to *errPtr. Preserves the
+// original error by wrapping with errors.Join if the errFunc err is non-nil.
+func Capture(errPtr *error, errFunc func() error, msg string) {
+	err := errFunc()
+	if err == nil {
+		return
+	}
+	*errPtr = errors.Join(*errPtr, fmt.Errorf("%s: %w", msg, err))
+}

utils/errs/errors_defer_test.go

@@ -0,0 +1,58 @@
+package errs
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+)
+
+func TestCapture(t *testing.T) {
+	tests := []struct {
+		name     string
+		initial  error
+		errFunc  func() error
+		msg      string
+		expected string
+	}{
+		{
+			name:     "No error from errFunc",
+			initial:  nil,
+			errFunc:  func() error { return nil },
+			msg:      "test message",
+			expected: "",
+		},
+		{
+			name:     "Error from errFunc with no initial error",
+			initial:  nil,
+			errFunc:  func() error { return errors.New("error from func") },
+			msg:      "test message",
+			expected: "test message: error from func",
+		},
+		{
+			name:     "Error from errFunc with initial error",
+			initial:  errors.New("initial error"),
+			errFunc:  func() error { return errors.New("error from func") },
+			msg:      "test message",
+			expected: "initial error\ntest message: error from func",
+		},
+		{
+			name:     "Error from errFunc with initial wrapped error",
+			initial:  fmt.Errorf("wrapped error: %w", errors.New("initial error")),
+			errFunc:  func() error { return errors.New("error from func") },
+			msg:      "test message",
+			expected: "wrapped error: initial error\ntest message: error from func",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var err error = tt.initial
+			Capture(&err, tt.errFunc, tt.msg)
+			if err != nil && err.Error() != tt.expected {
+				t.Errorf("expected %q, got %q", tt.expected, err.Error())
+			} else if err == nil && tt.expected != "" {
+				t.Errorf("expected %q, got nil", tt.expected)
+			}
+		})
+	}
+}