Merge pull request #167 from alimgiray/master

fix error handling

librarydetection/languages/Java.go

@@ -16,10 +16,19 @@ type javaAnalyzer struct{}
 func (a *javaAnalyzer) ExtractLibraries(contents string) ([]string, error) {
 	// regex to find imports like org.springframework (excluding standart java libraries)
 	regex1, err := regexp.Compile(`import ([^java][a-zA-Z0-9]*\.[a-zA-Z0-9]*)`)
+	if err != nil {
+		return nil, err
+	}
 	// regex to find imports like org.springframework.boot
 	regex2, err := regexp.Compile(`import ([^java][a-zA-Z0-9]*\.[a-zA-Z0-9]*\.[a-zA-Z0-9]*)`)
+	if err != nil {
+		return nil, err
+	}
 	// regex to find static imports like org.springframework (excluding standart java libraries)
 	regex3, err := regexp.Compile(`import static ([^java][a-zA-Z0-9]*\.[a-zA-Z0-9]*)`)
+	if err != nil {
+		return nil, err
+	}
 	// regex to find static imports like org.springframework.boot
 	regex4, err := regexp.Compile(`import static ([^java][a-zA-Z0-9]*\.[a-zA-Z0-9]*\.[a-zA-Z0-9]*)`)
 	if err != nil {

librarydetection/languages/JavaScript.go

@@ -14,7 +14,12 @@ func NewJavaScriptAnalyzer() librarydetection.Analyzer {
 type javaScriptAnalyzer struct{}
 
 func (a *javaScriptAnalyzer) ExtractLibraries(contents string) ([]string, error) {
+
 	require, err := regexp.Compile(`require\(["\'](.+)["\']\);?\s`)
+	if err != nil {
+		return nil, err
+	}
+
 	importRegex, err := regexp.Compile(`import\s*(?:.+ from)?\s?\(?[\'"](.+)[\'"]\)?;?\s`)
 	if err != nil {
 		return nil, err

librarydetection/languages/Python.go

@@ -15,6 +15,9 @@ type pythonScriptAnalyzer struct{}
 
 func (a *pythonScriptAnalyzer) ExtractLibraries(contents string) ([]string, error) {
 	fromRegex, err := regexp.Compile(`from (.+) import`)
+	if err != nil {
+		return nil, err
+	}
 	importRegex, err := regexp.Compile(`import ([a-zA-Z0-9_-]+)(?:\s| as)`)
 	if err != nil {
 		return nil, err

librarydetection/languages/TypeScript.go

@@ -15,6 +15,9 @@ type typeScriptAnalyzer struct{}
 
 func (a *typeScriptAnalyzer) ExtractLibraries(contents string) ([]string, error) {
 	require, err := regexp.Compile(`require\(["\'](.+)["\']\);?\s`)
+	if err != nil {
+		return nil, err
+	}
 	importRegex, err := regexp.Compile(`import\s*(?:.+ from)?\s?\(?[\'"](.+)[\'"]\)?;?\s`)
 	if err != nil {
 		return nil, err