Merge pull request #2332 from calmh/brokenignore

Correctly report errors encountered parsing ignores (fixes #2309)

lib/ignore/ignore.go

@@ -12,7 +12,6 @@ import (
 	"crypto/md5"
 	"fmt"
 	"io"
-	"log"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -217,28 +216,28 @@ func parseIgnoreFile(fd io.Reader, currentFile string, seen map[string]bool) ([]
 			// Pattern is rooted in the current dir only
 			exp, err := fnmatch.Convert(line[1:], flags)
 			if err != nil {
-				return fmt.Errorf("Invalid pattern %q in ignore file", line)
+				return fmt.Errorf("invalid pattern %q in ignore file", line)
 			}
 			patterns = append(patterns, Pattern{exp, include})
 		} else if strings.HasPrefix(line, "**/") {
 			// Add the pattern as is, and without **/ so it matches in current dir
 			exp, err := fnmatch.Convert(line, flags)
 			if err != nil {
-				return fmt.Errorf("Invalid pattern %q in ignore file", line)
+				return fmt.Errorf("invalid pattern %q in ignore file", line)
 			}
 			patterns = append(patterns, Pattern{exp, include})
 
 			exp, err = fnmatch.Convert(line[3:], flags)
 			if err != nil {
-				return fmt.Errorf("Invalid pattern %q in ignore file", line)
+				return fmt.Errorf("invalid pattern %q in ignore file", line)
 			}
 			patterns = append(patterns, Pattern{exp, include})
 		} else if strings.HasPrefix(line, "#include ") {
-			includeFile := filepath.Join(filepath.Dir(currentFile), line[len("#include "):])
+			includeRel := line[len("#include "):]
+			includeFile := filepath.Join(filepath.Dir(currentFile), includeRel)
 			includes, err := loadIgnoreFile(includeFile, seen)
 			if err != nil {
-				log.Println(err)
-				return err
+				return fmt.Errorf("include of %q: %v", includeRel, err)
 			}
 			patterns = append(patterns, includes...)
 		} else {
@@ -246,13 +245,13 @@ func parseIgnoreFile(fd io.Reader, currentFile string, seen map[string]bool) ([]
 			// current directory and subdirs.
 			exp, err := fnmatch.Convert(line, flags)
 			if err != nil {
-				return fmt.Errorf("Invalid pattern %q in ignore file", line)
+				return fmt.Errorf("invalid pattern %q in ignore file", line)
 			}
 			patterns = append(patterns, Pattern{exp, include})
 
 			exp, err = fnmatch.Convert("**/"+line, flags)
 			if err != nil {
-				return fmt.Errorf("Invalid pattern %q in ignore file", line)
+				return fmt.Errorf("invalid pattern %q in ignore file", line)
 			}
 			patterns = append(patterns, Pattern{exp, include})
 		}

lib/model/model.go

@@ -1183,7 +1183,9 @@ func (m *Model) AddFolder(cfg config.FolderConfiguration) {
 	}
 
 	ignores := ignore.New(m.cacheIgnoredFiles)
-	_ = ignores.Load(filepath.Join(cfg.Path(), ".stignore")) // Ignore error, there might not be an .stignore
+	if err := ignores.Load(filepath.Join(cfg.Path(), ".stignore")); err != nil && !os.IsNotExist(err) {
+		l.Warnln("Loading ignores:", err)
+	}
 	m.folderIgnores[cfg.ID] = ignores
 
 	m.fmut.Unlock()
@@ -1270,10 +1272,17 @@ func (m *Model) internalScanFolderSubs(folder string, subs []string) error {
 	}
 
 	if err := m.CheckFolderHealth(folder); err != nil {
+		runner.setError(err)
+		l.Infof("Stopping folder %s due to error: %s", folder, err)
 		return err
 	}
 
-	_ = ignores.Load(filepath.Join(folderCfg.Path(), ".stignore")) // Ignore error, there might not be an .stignore
+	if err := ignores.Load(filepath.Join(folderCfg.Path(), ".stignore")); err != nil && !os.IsNotExist(err) {
+		err = fmt.Errorf("loading ignores: %v", err)
+		runner.setError(err)
+		l.Infof("Stopping folder %s due to error: %s", folder, err)
+		return err
+	}
 
 	// Required to make sure that we start indexing at a directory we're already
 	// aware off.