Fix a couple of bugs with ahkpm install (#78)

src/core/installer.go

@@ -11,8 +11,8 @@ type Installer struct{}
 func (i Installer) Install(deps DependencyArray) {
 	pr := NewPackagesRepository()
 
-	lm := LockManifestFromCwd()
-	if deps.Equals(lm.Dependencies()) {
+	lm, err := LockManifestFromCwd()
+	if err == nil && deps.Equals(lm.Dependencies()) {
 		fmt.Println("No dependency changes found. Installing from lockfile.")
 		os.RemoveAll("ahkpm-modules")
 		for _, resolvedDep := range lm.Resolved {

src/core/lock_manifest.go

@@ -118,12 +118,12 @@ func (lm LockManifest) SaveToCwd() LockManifest {
 	return lm
 }
 
-func LockManifestFromCwd() *LockManifest {
+func LockManifestFromCwd() (*LockManifest, error) {
 	lm, err := LockManifestFromFile("ahkpm.lock")
 	if err != nil {
-		utils.Exit(err.Error())
+		return nil, err
 	}
-	return lm
+	return lm, nil
 }
 
 func LockManifestFromFile(path string) (*LockManifest, error) {

src/core/packages_repository.go

@@ -48,7 +48,7 @@ func (pr *packagesRepository) GetPackageDependencies(dep ResolvedDependency) ([]
 	deps := make([]Dependency, 0)
 	if err == nil {
 		deps = manifest.Dependencies()
-	} else if !strings.HasPrefix(err.Error(), "Error reading ahkpm.json") {
+	} else if !strings.HasPrefix(err.Error(), "Error reading") {
 		return nil, err
 	}
 

src/utils/utils.go

@@ -46,11 +46,11 @@ func FileExists(path string) (bool, error) {
 func StructFromFile[T any](path string, s *T) (*T, error) {
 	jsonBytes, err := os.ReadFile(path)
 	if err != nil {
-		return nil, errors.New("Error reading ahkpm.json at " + path)
+		return nil, errors.New("Error reading " + path)
 	}
 	err = json.Unmarshal(jsonBytes, s)
 	if err != nil {
-		return nil, errors.New("Error unmarshalling ahkpm.json")
+		return nil, errors.New("Error unmarshalling " + path)
 	}
 	return s, nil
 }