arduino
diff --git a/‎arduino/builder/sketch.go
Lines changed: 1 addition & 1 deletion b/‎arduino/builder/sketch.go
Lines changed: 1 addition & 1 deletion
diff --git a/‎arduino/globals/globals.go
Lines changed: 2 additions & 2 deletions b/‎arduino/globals/globals.go
Lines changed: 2 additions & 2 deletions
diff --git a/‎arduino/sketch/sketch.go
Lines changed: 1 addition & 1 deletion b/‎arduino/sketch/sketch.go
Lines changed: 1 addition & 1 deletion
diff --git a/‎legacy/builder/builder.go
Lines changed: 2 additions & 2 deletions b/‎legacy/builder/builder.go
Lines changed: 2 additions & 2 deletions
diff --git a/‎legacy/builder/create_cmake_rule.go
Lines changed: 1 addition & 1 deletion b/‎legacy/builder/create_cmake_rule.go
Lines changed: 1 addition & 1 deletion
@@ -187,7 +187,7 @@ func SketchLoad(sketchPath, buildPath string) (*sketch.Sketch, error) {
 		}
 
 		// ignore if file extension doesn't match
-		ext := strings.ToLower(filepath.Ext(path))
+		ext := filepath.Ext(path)
 		_, isMain := globals.MainFileValidExtensions[ext]
 		_, isAdditional := globals.AdditionalFileValidExtensions[ext]
 		if !(isMain || isAdditional) {
 
@@ -35,13 +35,13 @@ var (
 		".hpp": empty,
 		".hh":  empty,
 		".cpp": empty,
-		".s":   empty,
+		".S":   empty,
 	}
 
 	// SourceFilesValidExtensions lists valid extensions for source files (no headers)
 	SourceFilesValidExtensions = map[string]struct{}{
 		".c":   empty,
 		".cpp": empty,
-		".s":   empty,
+		".S":   empty,
 	}
 )
@@ -99,7 +99,7 @@ func New(sketchFolderPath, mainFilePath, buildPath string, allFilesPaths []strin
 	otherSketchFiles := []*Item{}
 	rootFolderFiles := []*Item{}
 	for p, item := range pathToItem {
-		ext := strings.ToLower(filepath.Ext(p))
+		ext := filepath.Ext(p)
 		if _, found := globals.MainFileValidExtensions[ext]; found {
 			// item is a valid main file, see if it's stored at the
 			// sketch root and ignore if it's not.
 
@@ -31,8 +31,8 @@ import (
 )
 
 var MAIN_FILE_VALID_EXTENSIONS = map[string]bool{".ino": true, ".pde": true}
-var ADDITIONAL_FILE_VALID_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".s": true}
-var ADDITIONAL_FILE_VALID_EXTENSIONS_NO_HEADERS = map[string]bool{".c": true, ".cpp": true, ".s": true}
+var ADDITIONAL_FILE_VALID_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".S": true}
+var ADDITIONAL_FILE_VALID_EXTENSIONS_NO_HEADERS = map[string]bool{".c": true, ".cpp": true, ".S": true}
 
 const DEFAULT_DEBUG_LEVEL = 5
 const DEFAULT_WARNINGS_LEVEL = "none"
 
@@ -32,7 +32,7 @@ import (
 	"github.com/arduino/arduino-cli/legacy/builder/utils"
 )
 
-var VALID_EXPORT_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".s": true, ".a": true, ".properties": true}
+var VALID_EXPORT_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".S": true, ".a": true, ".properties": true}
 var DOTHEXTENSION = map[string]bool{".h": true, ".hh": true, ".hpp": true}
 var DOTAEXTENSION = map[string]bool{".a": true}
Original file line number	Diff line number	Diff line change
`@@ -187,7 +187,7 @@ func SketchLoad(sketchPath, buildPath string) (*sketch.Sketch, error) {`
`187`	`187`	`}`
`188`	`188`
`189`	`189`	`// ignore if file extension doesn't match`
`190`		`- ext := strings.ToLower(filepath.Ext(path))`
	`190`	`+ ext := filepath.Ext(path)`
`191`	`191`	`_, isMain := globals.MainFileValidExtensions[ext]`
`192`	`192`	`_, isAdditional := globals.AdditionalFileValidExtensions[ext]`
`193`	`193`	`if !(isMain \|\| isAdditional) {`
Original file line number	Diff line number	Diff line change
`@@ -35,13 +35,13 @@ var (`
`35`	`35`	`".hpp": empty,`
`36`	`36`	`".hh": empty,`
`37`	`37`	`".cpp": empty,`
`38`		`- ".s": empty,`
	`38`	`+ ".S": empty,`
`39`	`39`	`}`
`40`	`40`
`41`	`41`	`// SourceFilesValidExtensions lists valid extensions for source files (no headers)`
`42`	`42`	`SourceFilesValidExtensions = map[string]struct{}{`
`43`	`43`	`".c": empty,`
`44`	`44`	`".cpp": empty,`
`45`		`- ".s": empty,`
	`45`	`+ ".S": empty,`
`46`	`46`	`}`
`47`	`47`	`)`
Original file line number	Diff line number	Diff line change
`@@ -31,8 +31,8 @@ import (`
`31`	`31`	`)`
`32`	`32`
`33`	`33`	`var MAIN_FILE_VALID_EXTENSIONS = map[string]bool{".ino": true, ".pde": true}`
`34`		`-var ADDITIONAL_FILE_VALID_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".s": true}`
`35`		`-var ADDITIONAL_FILE_VALID_EXTENSIONS_NO_HEADERS = map[string]bool{".c": true, ".cpp": true, ".s": true}`
	`34`	`+var ADDITIONAL_FILE_VALID_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".S": true}`
	`35`	`+var ADDITIONAL_FILE_VALID_EXTENSIONS_NO_HEADERS = map[string]bool{".c": true, ".cpp": true, ".S": true}`
`36`	`36`
`37`	`37`	`const DEFAULT_DEBUG_LEVEL = 5`
`38`	`38`	`const DEFAULT_WARNINGS_LEVEL = "none"`
Original file line number	Diff line number	Diff line change
`@@ -32,7 +32,7 @@ import (`
`32`	`32`	`"github.com/arduino/arduino-cli/legacy/builder/utils"`
`33`	`33`	`)`
`34`	`34`
`35`		`-var VALID_EXPORT_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".s": true, ".a": true, ".properties": true}`
	`35`	`+var VALID_EXPORT_EXTENSIONS = map[string]bool{".h": true, ".c": true, ".hpp": true, ".hh": true, ".cpp": true, ".S": true, ".a": true, ".properties": true}`
`36`	`36`	`var DOTHEXTENSION = map[string]bool{".h": true, ".hh": true, ".hpp": true}`
`37`	`37`	`var DOTAEXTENSION = map[string]bool{".a": true}`
`38`	`38`