add "-" before meta to avoid format errors

README.md

@@ -37,16 +37,16 @@ Text
 
 ### Meta data
 
-Meta data separated by lines and in format `name: value`. By default library supports `tags` as comma separated array.
+Meta data separated by lines and in format `- name: value`. By default library supports `tags` as comma separated array.
 During populating tree it adds missing `id` in `abcex` format and empty meta data lines and saves in `source` directory then copy
 to `destination` directory.
 
 ### File structure
 
 ```
-tags: linux,command,video
+- tags: linux,command,video
-meta1: example
+- meta1: example
-meta2: some long description
+- meta2: some long description
 
 ---
 

testdata/sunny/file1.md

@@ -1,7 +1,7 @@
-tags: t1,t2
+- tags: t1,t2
 
-description: Če test file __va__
+- description: Če test file __va__
-option1: test option
+- option1: test option
 ---
 
 # Če kažkas torietom būtė

testdata/sunny/file2.md

@@ -1,8 +1,8 @@
-tags: t1
+- tags: t1
-description: Če test 2
+- description: Če test 2
 
 ---
 
 # Če kažkas torietom būtė 2
 
-ale nie
+ale nie

testdata/sunny/subcategory/file3.md

@@ -1,6 +1,6 @@
-tags: t1
+- tags: t1
-description: Če test 3
+- description: Če test 3
-option2: it exists
+- option2: it exists
 
 ---
 

tree.go

@@ -131,7 +131,7 @@ func addMissingMeta(dir string, meta []string) error {
 			for scanner.Scan() {
 				line := scanner.Text()
 				for _, option := range meta {
-					if strings.HasPrefix(line, option+":") {
+					if strings.HasPrefix(line, "- "+option+":") {
 						check[option] = true
 					}
 				}
@@ -200,7 +200,7 @@ func addMeta(path string, option string, value string) error {
 	}
 
 	str := string(b)
-	str = strings.Replace(str, "\n\n---\n", fmt.Sprintf("\n%s: %s\n\n---\n", option, value), 1)
+	str = strings.Replace(str, "\n\n---\n", fmt.Sprintf("\n- %s: %s\n\n---\n", option, value), 1)
 	err = ioutil.WriteFile(path, []byte(str), 0644)
 
 	return err
@@ -299,8 +299,8 @@ func readFile(file fs.FileInfo, fullPath string, category []string, meta []strin
 			break
 		}
 
-		if strings.HasPrefix(line, "tags:") {
+		if strings.HasPrefix(line, "- tags:") {
-			line = strings.TrimPrefix(line, "tags:")
+			line = strings.TrimPrefix(line, "- tags:")
 			t := strings.Split(line, ",")
 			tags := []string{}
 			for _, tag := range t {
@@ -309,13 +309,13 @@ func readFile(file fs.FileInfo, fullPath string, category []string, meta []strin
 
 			f.Tags = tags
 		}
-		if strings.HasPrefix(line, "id:") {
+		if strings.HasPrefix(line, "- id:") {
-			line = strings.TrimPrefix(line, "id:")
+			line = strings.TrimPrefix(line, "- id:")
 			f.Id = strings.Trim(line, " ")
 		}
 		for _, option := range meta {
-			if strings.HasPrefix(line, option) {
+			if strings.HasPrefix(line, "- "+option) {
-				line = strings.TrimPrefix(line, option+":")
+				line = strings.TrimPrefix(line, "- "+option+":")
 				f.Meta[option] = strings.Trim(line, " ")
 			}
 		}

tree_test.go

@@ -70,7 +70,7 @@ func TestFixFormat(t *testing.T) {
 	}
 	str := string(b)
 	t.Log(str)
-	if !strings.Contains(str, "tags: t1,t2\ndescription: Če test file __va__\n") {
+	if !strings.Contains(str, "- tags: t1,t2\n- description: Če test file __va__\n") {
 		t.Fatal("Empty lines has not been removed in file 'file1.md'.")
 	}
 	if !strings.Contains(str, "\n\n---\n") {
@@ -124,7 +124,7 @@ func TestId(t *testing.T) {
 		t.Fatal("No destination file 'file1.md'.")
 	}
 	str := string(b)
-	if !strings.Contains(str, "\nid: 1\n") {
+	if !strings.Contains(str, "\n- id: 1\n") {
 		t.Fatal("No id in file 'file1.md'.")
 	}
 
@@ -133,7 +133,7 @@ func TestId(t *testing.T) {
 		t.Fatal("No destination file 'substring/file3.md'.")
 	}
 	str = string(b)
-	if !strings.Contains(str, "\nid: 3\n") {
+	if !strings.Contains(str, "\n- id: 3\n") {
 		t.Fatal("No id in file 'file3.md'.")
 	}
 }
@@ -160,10 +160,10 @@ func TestMissingOptions(t *testing.T) {
 		t.Fatal("No destination file 'file1.md'.")
 	}
 	str := string(b)
-	if !strings.Contains(str, "\noption1: test option\n") {
+	if !strings.Contains(str, "\n- option1: test option\n") {
 		t.Fatal("Changed old value for 'option1' in file 'file1.md'.")
 	}
-	if !strings.Contains(str, "\noption2: \n") {
+	if !strings.Contains(str, "\n- option2: \n") {
 		t.Fatal("'option2' has not been added to file 'file1.md'.")
 	}
 
@@ -172,10 +172,10 @@ func TestMissingOptions(t *testing.T) {
 		t.Fatal("No destination file 'file2.md'.")
 	}
 	str = string(b)
-	if !strings.Contains(str, "\noption1: \n") {
+	if !strings.Contains(str, "\n- option1: \n") {
 		t.Fatal("'option1' has not been added to file 'file2.md'.")
 	}
-	if !strings.Contains(str, "\noption2: \n") {
+	if !strings.Contains(str, "\n- option2: \n") {
 		t.Fatal("'option2' has not been added to file 'file2.md'.")
 	}
 
@@ -184,10 +184,10 @@ func TestMissingOptions(t *testing.T) {
 		t.Fatal("No destination file 'substring/file3.md'.")
 	}
 	str = string(b)
-	if !strings.Contains(str, "\noption1: \n") {
+	if !strings.Contains(str, "\n- option1: \n") {
 		t.Fatal("'option1' has not been added to file 'file3.md'.")
 	}
-	if !strings.Contains(str, "\noption2: it exists\n") {
+	if !strings.Contains(str, "\n- option2: it exists\n") {
 		t.Fatal("Changed old value for 'option2' in file 'file3.md'.")
 	}
 }