Add check for library.properties name value mismatch with primary header filename

check/checkconfigurations/checkconfigurations.go

@@ -251,6 +251,21 @@ var configurations = []Type{
 		ErrorModes:      []checkmode.Type{checkmode.All},
 		CheckFunction:   checkfunctions.LibraryPropertiesNameFieldNotInIndex,
 	},
+	{
+		ProjectType:     projecttype.Library,
+		Category:        "structure",
+		Subcategory:     "general",
+		ID:              "",
+		Brief:           "name-header mismatch",
+		Description:     `The name value determines the installation folder name and the folder match to the filename in the #include directive influences "folder name priority".`,
+		MessageTemplate: "No header file found matching library name ({{.}}). Best practices are for primary header filename to match library name.",
+		DisableModes:    nil,
+		EnableModes:     []checkmode.Type{checkmode.All},
+		InfoModes:       []checkmode.Type{checkmode.Permissive},
+		WarningModes:    []checkmode.Type{checkmode.Default},
+		ErrorModes:      nil,
+		CheckFunction:   checkfunctions.LibraryPropertiesNameFieldHeaderMismatch,
+	},
 	{
 		ProjectType:     projecttype.Library,
 		Category:        "library.properties",

check/checkdata/library.go

@@ -50,6 +50,12 @@ func InitializeForLibrary(project project.Type, schemasPath *paths.Path) {
 	if err != nil {
 		logrus.Errorf("Error loading library from %s: %s", project.Path, err)
 		loadedLibrary = nil
+		sourceHeaders = nil
+	} else {
+		sourceHeaders, err = loadedLibrary.SourceHeaders()
+		if err != nil {
+			panic(err)
+		}
 	}
 
 	if libraryManagerIndex == nil { // Only download the Library Manager index once
@@ -106,6 +112,13 @@ func LoadedLibrary() *libraries.Library {
 	return loadedLibrary
 }
 
+var sourceHeaders []string
+
+// SourceHeaders returns the list of library source header filenames discovered by Arduino CLI.
+func SourceHeaders() []string {
+	return sourceHeaders
+}
+
 var libraryManagerIndex map[string]interface{}
 
 // LibraryManagerIndex returns the Library Manager index data.

check/checkfunctions/library.go

@@ -19,6 +19,7 @@ package checkfunctions
 
 import (
 	"net/http"
+	"path/filepath"
 	"strings"
 
 	"github.com/arduino/arduino-check/check/checkdata"
@@ -27,6 +28,7 @@ import (
 	"github.com/arduino/arduino-check/check/checkresult"
 	"github.com/arduino/arduino-check/configuration"
 	"github.com/arduino/arduino-cli/arduino/libraries"
+	"github.com/arduino/arduino-cli/arduino/utils"
 	"github.com/arduino/go-properties-orderedmap"
 	"github.com/sirupsen/logrus"
 )
@@ -242,6 +244,27 @@ func LibraryPropertiesNameFieldNotInIndex() (result checkresult.Type, output str
 	return checkresult.Fail, name
 }
 
+// LibraryPropertiesNameFieldHeaderMismatch checks whether the filename of one of the library's header files matches the Library Manager installation folder name.
+func LibraryPropertiesNameFieldHeaderMismatch() (result checkresult.Type, output string) {
+	if checkdata.LibraryPropertiesLoadError() != nil {
+		return checkresult.NotRun, ""
+	}
+
+	name, ok := checkdata.LibraryProperties().GetOk("name")
+	if !ok {
+		return checkresult.NotRun, ""
+	}
+
+	sanitizedName := utils.SanitizeName(name)
+	for _, header := range checkdata.SourceHeaders() {
+		if strings.TrimSuffix(header, filepath.Ext(header)) == sanitizedName {
+			return checkresult.Pass, ""
+		}
+	}
+
+	return checkresult.Fail, sanitizedName + ".h"
+}
+
 // LibraryPropertiesVersionFieldMissing checks for missing library.properties "version" field.
 func LibraryPropertiesVersionFieldMissing() (result checkresult.Type, output string) {
 	if checkdata.LibraryPropertiesLoadError() != nil {

check/checkfunctions/library_test.go

@@ -93,6 +93,16 @@ func TestLibraryPropertiesNameFieldNotInIndex(t *testing.T) {
 	checkCheckFunction(LibraryPropertiesNameFieldNotInIndex, testTables, t)
 }
 
+func TestLibraryPropertiesNameFieldHeaderMismatch(t *testing.T) {
+	testTables := []checkFunctionTestTable{
+		{"Unable to load", "InvalidLibraryProperties", checkresult.NotRun, ""},
+		{"Mismatch", "NameHeaderMismatch", checkresult.Fail, "^NameHeaderMismatch.h$"},
+		{"Match", "Recursive", checkresult.Pass, ""},
+	}
+
+	checkCheckFunction(LibraryPropertiesNameFieldHeaderMismatch, testTables, t)
+}
+
 func TestLibraryPropertiesSentenceFieldSpellCheck(t *testing.T) {
 	testTables := []checkFunctionTestTable{
 		{"Unable to load", "InvalidLibraryProperties", checkresult.NotRun, ""},

check/checkfunctions/testdata/libraries/NameHeaderMismatch/library.properties

@@ -0,0 +1,9 @@
+name=NameHeaderMismatch
+version=1.0.0
+author=Cristian Maglie <c.maglie@example.com>, Pippo Pluto <pippo@example.com>
+maintainer=Cristian Maglie <c.maglie@example.com>
+sentence=A library that makes coding a web server a breeze.
+paragraph=Supports HTTP1.1 and you can do GET and POST.
+category=Communication
+url=http://example.com/
+architectures=avr