Add schema provided checks for library.properties url field

Author: per1234

check/checkconfigurations/checkconfigurations.go

@@ -146,6 +146,36 @@ var configurations = []Type{
 		ErrorModes:      []checkmode.Type{checkmode.All},
 		CheckFunction:   checkfunctions.LibraryPropertiesVersionFieldMissing,
 	},
+	{
+		ProjectType:     projecttype.Library,
+		Category:        "library.properties",
+		Subcategory:     "url field",
+		ID:              "",
+		Brief:           "missing url field",
+		Description:     "",
+		MessageTemplate: "missing required url field in library.properties. See https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format",
+		DisableModes:    nil,
+		EnableModes:     []checkmode.Type{checkmode.All},
+		InfoModes:       nil,
+		WarningModes:    nil,
+		ErrorModes:      []checkmode.Type{checkmode.All},
+		CheckFunction:   checkfunctions.LibraryPropertiesUrlFieldMissing,
+	},
+	{
+		ProjectType:     projecttype.Library,
+		Category:        "library.properties",
+		Subcategory:     "url field",
+		ID:              "",
+		Brief:           "invalid url format",
+		Description:     "",
+		MessageTemplate: "library.properties url field value {{.}} does not have a valid URL format.",
+		DisableModes:    nil,
+		EnableModes:     []checkmode.Type{checkmode.All},
+		InfoModes:       nil,
+		WarningModes:    []checkmode.Type{checkmode.Permissive},
+		ErrorModes:      []checkmode.Type{checkmode.Default},
+		CheckFunction:   checkfunctions.LibraryPropertiesUrlFieldInvalid,
+	},
 	{
 		ProjectType:     projecttype.Library,
 		Category:        "library.properties",

check/checkfunctions/library.go

@@ -110,6 +110,36 @@ func LibraryPropertiesVersionFieldMissing() (result checkresult.Type, output str
 	return checkresult.Pass, ""
 }
 
+// LibraryPropertiesUrlFieldMissing checks for missing library.properties "url" field.
+func LibraryPropertiesUrlFieldMissing() (result checkresult.Type, output string) {
+	if checkdata.LibraryPropertiesLoadError() != nil {
+		return checkresult.NotRun, ""
+	}
+
+	if schema.RequiredPropertyMissing("url", checkdata.LibraryPropertiesSchemaValidationResult()[compliancelevel.Specification], configuration.SchemasPath()) {
+		return checkresult.Fail, ""
+	}
+	return checkresult.Pass, ""
+}
+
+// LibraryPropertiesUrlFieldInvalid checks whether the library.properties "url" value has a valid URL format.
+func LibraryPropertiesUrlFieldInvalid() (result checkresult.Type, output string) {
+	if checkdata.LibraryPropertiesLoadError() != nil {
+		return checkresult.NotRun, ""
+	}
+
+	url, ok := checkdata.LibraryProperties().GetOk("url")
+	if !ok {
+		return checkresult.NotRun, ""
+	}
+
+	if schema.ValidationErrorMatch("^#/url$", "/format$", "", "", checkdata.LibraryPropertiesSchemaValidationResult()[compliancelevel.Specification], configuration.SchemasPath()) {
+		return checkresult.Fail, url
+	}
+
+	return checkresult.Pass, ""
+}
+
 // LibraryPropertiesDependsFieldNotInIndex checks whether the libraries listed in the library.properties `depends` field are in the Library Manager index.
 func LibraryPropertiesDependsFieldNotInIndex() (result checkresult.Type, output string) {
 	if checkdata.LibraryPropertiesLoadError() != nil {