feat: proper error codes management

Closes #14

Author: BoxBoxJason

.gitignore

@@ -55,7 +55,6 @@ Desktop.ini
 *.pub
 
 mirroring.json
-go.sum
 republisher.sh
 
 # Reports files
@@ -65,4 +64,6 @@ coverage.out
 .scannerwork/
 *-report*
 .sonarlint/
-dependency-check/
+dependency-check/
+
+.copilot/

cmd/main.go

@@ -8,6 +8,7 @@ import (
 
 	"gitlab-sync/internal/mirroring"
 	"gitlab-sync/internal/utils"
+	"gitlab-sync/pkg/helpers"
 
 	"github.com/spf13/cobra"
 	"go.uber.org/zap"
@@ -65,9 +66,23 @@ func main() {
 
 			mirroringErrors := mirroring.MirrorGitlabs(&args)
 			if mirroringErrors != nil {
-				zap.L().Error("Error during mirroring process", zap.Errors("errors", mirroringErrors))
+				// Determine exit code based on error severity
+				hasBlocking := false
+				for _, err := range mirroringErrors {
+					if helpers.SeverityOf(err) == helpers.SeverityBlocking {
+						hasBlocking = true
+						break
+					}
+				}
+				if hasBlocking {
+					zap.L().Error("Blocking errors occurred during mirroring process", zap.Errors("errors", mirroringErrors))
+					os.Exit(1)
+				} else {
+					zap.L().Warn("Non-blocking errors occurred during mirroring process", zap.Errors("errors", mirroringErrors))
+					os.Exit(2)
+				}
 			}
-			zap.L().Info("Mirroring completed")
+			zap.L().Info("Mirroring completed successfully")
 		},
 	}
 

cmd/main_test.go

@@ -249,7 +249,6 @@ func TestPromptForMandatoryInputEmptyPrompt(t *testing.T) {
 	if err == nil {
 		t.Fatalf("Expected subprocess to exit with fatal error, but it succeeded, output: %q", output)
 	}
-	// Optionally, check output contains INPUT_REQUIRED message or similar, if desired.
 }
 
 // TestPromptForMandatoryInputPromptDisabled tests that if prompting is disabled and no defaultValue is provided,
@@ -267,5 +266,4 @@ func TestPromptForMandatoryInputPromptDisabled(t *testing.T) {
 	if err == nil {
 		t.Fatalf("Expected subprocess to fail due to prompting disabled, but it succeeded, output: %q", output)
 	}
-	// Optionally, further validate that output contains "Prompting is disabled" if needed.
 }

go.mod

@@ -7,16 +7,16 @@ require (
 	github.com/go-git/go-git/v5 v5.16.3
 	github.com/hashicorp/go-retryablehttp v0.7.8
 	github.com/spf13/cobra v1.10.1
-	gitlab.com/gitlab-org/api/client-go v0.157.1
-	go.uber.org/zap v1.27.0
+	gitlab.com/gitlab-org/api/client-go v0.160.1
+	go.uber.org/zap v1.27.1
 )
 
 require (
 	dario.cat/mergo v1.0.2 // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/ProtonMail/go-crypto v1.3.0 // indirect
 	github.com/cloudflare/circl v1.6.1 // indirect
-	github.com/cyphar/filepath-securejoin v0.4.1 // indirect
+	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.6.2 // indirect
@@ -29,15 +29,15 @@ require (
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/pjbgf/sha1cd v0.5.0 // indirect
 	github.com/sergi/go-diff v1.4.0 // indirect
-	github.com/skeema/knownhosts v1.3.1 // indirect
+	github.com/skeema/knownhosts v1.3.2 // indirect
 	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.42.0 // indirect
-	golang.org/x/exp v0.0.0-20250911091902-df9299821621 // indirect
-	golang.org/x/net v0.44.0 // indirect
-	golang.org/x/oauth2 v0.31.0 // indirect
-	golang.org/x/sys v0.36.0 // indirect
-	golang.org/x/time v0.13.0 // indirect
+	golang.org/x/crypto v0.45.0 // indirect
+	golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6 // indirect
+	golang.org/x/net v0.47.0 // indirect
+	golang.org/x/oauth2 v0.33.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 )

go.sum

@@ -0,0 +1,143 @@
+dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
+dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
+github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
+github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
+github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/ProtonMail/go-crypto v1.3.0 h1:ILq8+Sf5If5DCpHQp4PbZdS1J7HDFRXz/+xKBiRGFrw=
+github.com/ProtonMail/go-crypto v1.3.0/go.mod h1:9whxjD8Rbs29b4XWbB8irEcE8KHMqaR2e7GWU1R+/PE=
+github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
+github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
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+golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6 h1:zfMcR1Cs4KNuomFFgGefv5N0czO2XZpUbxGUy8i8ug0=
+golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6/go.mod h1:46edojNIoXTNOhySWIWdix628clX9ODXwPsQuG6hsK0=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
+golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
+golang.org/x/oauth2 v0.33.0 h1:4Q+qn+E5z8gPRJfmRy7C2gGG3T4jIprK6aSYgTXGRpo=
+golang.org/x/oauth2 v0.33.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
+gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/mirroring/main.go

@@ -33,7 +33,7 @@ func MirrorGitlabs(gitlabMirrorArgs *utils.ParserArgs) []error {
 		InstanceSize: sourceGitlabSize,
 	})
 	if err != nil {
-		return []error{err}
+		return []error{helpers.NewBlocking(err)}
 	}
 
 	// Create destination GitLab instance
@@ -49,14 +49,13 @@ func MirrorGitlabs(gitlabMirrorArgs *utils.ParserArgs) []error {
 		InstanceSize: destinationGitlabSize,
 	})
 	if err != nil {
-		return []error{err}
+		return []error{helpers.NewBlocking(err)}
 	}
 	pullMirrorAvailable, err := destinationGitlabInstance.IsPullMirrorAvailable(gitlabMirrorArgs.ForcePremium, gitlabMirrorArgs.ForceNonPremium)
 
 	if err != nil {
 		// Could not obtain a result from the destination GitLab instance, so we cannot proceed with the mirroring process.
-		// TODO: have a non zero exit code in this case
-		return []error{err}
+		return []error{helpers.NewBlocking(err)}
 	} else if pullMirrorAvailable {
 		// Proceed with the pull mirroring process
 		zap.L().Info("GitLab instance is compatible with the pull mirroring process", zap.String(ROLE, destinationGitlabInstance.Role), zap.String(INSTANCE_SIZE, destinationGitlabInstance.InstanceSize))
@@ -161,7 +160,7 @@ func (destinationGitlabInstance *GitlabInstance) DryRun(sourceGitlabInstance *Gi
 			if copyOptions.MirrorReleases {
 				if err := destinationGitlabInstance.DryRunReleases(sourceGitlabInstance, sourceProject, copyOptions); err != nil {
 					zap.L().Error("Failed to dry run releases", zap.Error(err))
-					return []error{err}
+					return []error{helpers.NewNonBlocking(err)}
 				}
 			}
 		}

internal/mirroring/main_test.go

@@ -6,6 +6,7 @@ import (
 	"testing"
 
 	"gitlab-sync/internal/utils"
+	"gitlab-sync/pkg/helpers"
 )
 
 func TestProcessFilters(t *testing.T) {
@@ -267,3 +268,25 @@ func TestIsPullMirrorAvailable(t *testing.T) {
 		})
 	}
 }
+
+func TestMirrorGitlabsErrorWrapping(t *testing.T) {
+	// Test that blocking errors are wrapped correctly
+	args := &utils.ParserArgs{
+		SourceGitlabURL:        "invalid-url",
+		SourceGitlabToken:      "token",
+		DestinationGitlabURL:   "https://example.com",
+		DestinationGitlabToken: "token",
+		MirrorMapping:          &utils.MirrorMapping{},
+		Retry:                  1,
+	}
+
+	errors := MirrorGitlabs(args)
+	if len(errors) == 0 {
+		t.Fatal("Expected errors, got none")
+	}
+
+	// Check that the first error is blocking
+	if severity := helpers.SeverityOf(errors[0]); severity != helpers.SeverityBlocking {
+		t.Errorf("Expected blocking error, got %v", severity)
+	}
+}