Upatede Error type to SourceError

Added processor object to code
Verified compile errors appearing
Signed-off-by: notzippy@gmail.com

utils/build_error.go

@@ -3,6 +3,8 @@ package utils
 import (
 	"fmt"
 	"github.com/revel/cmd/logger"
+	"strconv"
+	"regexp"
 )
 
 type (
@@ -43,3 +45,60 @@ func NewBuildIfError(err error, message string, args ...interface{}) (b error) {
 func (b *BuildError) Error() string {
 	return fmt.Sprint(b.Message, b.Args)
 }
+
+// Parse the output of the "go build" command.
+// Return a detailed Error.
+func NewCompileError(importPath, errorLink string, error error) *SourceError {
+	// Get the stack from the error
+
+	errorMatch := regexp.MustCompile(`(?m)^([^:#]+):(\d+):(\d+:)? (.*)$`).
+		FindSubmatch([]byte(error.Error()))
+	if errorMatch == nil {
+		errorMatch = regexp.MustCompile(`(?m)^(.*?):(\d+):\s(.*?)$`).FindSubmatch([]byte(error.Error()))
+
+		if errorMatch == nil {
+			Logger.Error("Failed to parse build errors", "error", error)
+			return &SourceError{
+				SourceType:  "Go code",
+				Title:       "Go Compilation Error",
+				Description: "See console for build error.",
+			}
+		}
+
+		errorMatch = append(errorMatch, errorMatch[3])
+
+		Logger.Error("Build errors", "errors", error)
+	}
+
+
+	// Read the source for the offending file.
+	var (
+		relFilename  = string(errorMatch[1]) // e.g. "src/revel/sample/app/controllers/app.go"
+		absFilename  = relFilename
+		line, _      = strconv.Atoi(string(errorMatch[2]))
+		description  = string(errorMatch[4])
+		compileError = &SourceError{
+			SourceType:  "Go code",
+			Title:       "Go Compilation Error",
+			Path:        relFilename,
+			Description: description,
+			Line:        line,
+		}
+	)
+
+	// errorLink := paths.Config.StringDefault("error.link", "")
+
+	if errorLink != "" {
+		compileError.SetLink(errorLink)
+	}
+
+	fileStr, err := ReadLines(absFilename)
+	if err != nil {
+		compileError.MetaError = absFilename + ": " + err.Error()
+		Logger.Info("Unable to readlines "+compileError.MetaError, "error", err)
+		return compileError
+	}
+
+	compileError.SourceLines = fileStr
+	return compileError
+}

utils/error.go

@@ -8,7 +8,7 @@ import (
 
 // The error is a wrapper for the
 type (
-	Error struct {
+	SourceError struct {
 		SourceType               string   // The type of source that failed to build.
 		Title, Path, Description string   // Description of the error, as presented to the user.
 		Line, Column             int      // Where the error was encountered.
@@ -24,8 +24,8 @@ type (
 	}
 )
 // Return a new error object
-func NewError(source, title,path,description string) *Error {
-	return &Error {
+func NewError(source, title,path,description string) *SourceError {
+	return &SourceError{
 		SourceType:source,
 		Title:title,
 		Path:path,
@@ -34,7 +34,7 @@ func NewError(source, title,path,description string) *Error {
 }
 
 // Creates a link based on the configuration setting "errors.link"
-func (e *Error) SetLink(errorLink string) {
+func (e *SourceError) SetLink(errorLink string) {
 	errorLink = strings.Replace(errorLink, "{{Path}}", e.Path, -1)
 	errorLink = strings.Replace(errorLink, "{{Line}}", strconv.Itoa(e.Line), -1)
 
@@ -44,7 +44,7 @@ func (e *Error) SetLink(errorLink string) {
 // Error method constructs a plaintext version of the error, taking
 // account that fields are optionally set. Returns e.g. Compilation Error
 // (in views/header.html:51): expected right delim in end; got "}"
-func (e *Error) Error() string {
+func (e *SourceError) Error() string {
 	if e == nil {
 		panic("opps")
 	}
@@ -69,7 +69,7 @@ func (e *Error) Error() string {
 
 // ContextSource method returns a snippet of the source around
 // where the error occurred.
-func (e *Error) ContextSource() []SourceLine {
+func (e *SourceError) ContextSource() []SourceLine {
 	if e.SourceLines == nil {
 		return nil
 	}

utils/file.go

@@ -150,7 +150,7 @@ func MustChmod(filename string, mode os.FileMode) {
 
 // Called if panic
 func PanicOnError(err error, msg string) {
-	if revErr, ok := err.(*Error); (ok && revErr != nil) || (!ok && err != nil) {
+	if revErr, ok := err.(*SourceError); (ok && revErr != nil) || (!ok && err != nil) {
 		Logger.Panicf("Abort: %s: %s %s", msg, revErr, err)
 	}
 }