Merge pull request #1 from vbatts/check_results

Check results

check.go

@@ -7,12 +7,25 @@ import (
 	"sort"
 )
 
+// Result of a Check
 type Result struct {
-	// XXX perhaps this is a list of the failed files and keywords?
+	Failures []Failure // list of any failures in the Check
 }
 
-var ErrNotAllClear = fmt.Errorf("some keyword check failed validation")
+// Failure of a particular keyword for a path
+type Failure struct {
+	Path     string
+	Keyword  string
+	Expected string
+	Got      string
+}
 
+// String returns a "pretty" formatting for a Failure
+func (f Failure) String() string {
+	return fmt.Sprintf("%q: keyword %q: expected %s; got %s", f.Path, f.Keyword, f.Expected, f.Got)
+}
+
+// Check a root directory path for a DirectoryHierarchy
 func Check(root string, dh *DirectoryHierarchy) (*Result, error) {
 	creator := dhCreator{DH: dh}
 	curDir, err := os.Getwd()
@@ -25,7 +38,7 @@ func Check(root string, dh *DirectoryHierarchy) (*Result, error) {
 	}
 	sort.Sort(byPos(creator.DH.Entries))
 
-	var failed bool
+	var result Result
 	for _, e := range creator.DH.Entries {
 		switch e.Type {
 		case SpecialType:
@@ -57,16 +70,11 @@ func Check(root string, dh *DirectoryHierarchy) (*Result, error) {
 					return nil, err
 				}
 				if string(kv) != curKeyVal {
-					failed = true
-					fmt.Printf("%q: keyword %q: expected %s; got %s\n", e.Path(), kv.Keyword(), kv.Value(), KeyVal(curKeyVal).Value())
+					failure := Failure{Path: e.Path(), Keyword: kv.Keyword(), Expected: kv.Value(), Got: KeyVal(curKeyVal).Value()}
+					result.Failures = append(result.Failures, failure)
 				}
 			}
 		}
 	}
-
-	if failed {
-		return nil, ErrNotAllClear
-	}
-
-	return nil, nil
+	return &result, nil
 }

cmd/gomtree/main.go

@@ -98,8 +98,11 @@ func main() {
 			isErr = true
 			return
 		}
-		if res != nil {
-			fmt.Printf("%#v\n", res)
+		if res != nil && len(res.Failures) > 0 {
+			defer os.Exit(1)
+			for _, failure := range res.Failures {
+				fmt.Println(failure)
+			}
 		}
 	}
 }

hierarchy.go

@@ -46,6 +46,7 @@ type Entry struct {
 	Type          EntryType
 }
 
+// Path provides the full path of the file, despite RelativeType or FullType
 func (e Entry) Path() string {
 	if e.Parent == nil || e.Type == FullType {
 		return e.Name

parse.go

@@ -53,6 +53,9 @@ func ParseSpec(r io.Reader) (*DirectoryHierarchy, error) {
 		case len(strings.Fields(str)) > 0 && strings.Fields(str)[0] == "..":
 			e.Type = DotDotType
 			e.Raw = str
+			if creator.curDir != nil {
+				creator.curDir = creator.curDir.Parent
+			}
 			// nothing else to do here
 		case len(strings.Fields(str)) > 0:
 			// collapse any escaped newlines
@@ -74,6 +77,7 @@ func ParseSpec(r io.Reader) (*DirectoryHierarchy, error) {
 			}
 			e.Name = f[0]
 			e.Keywords = f[1:]
+			e.Parent = creator.curDir
 			for i := range e.Keywords {
 				kv := KeyVal(e.Keywords[i])
 				if kv.Keyword() == "type" {