Struct merge_yaml_hash::MergeYamlHash

pub struct MergeYamlHash {
    pub data: Hash,
}

YAML Hash with merge/update capabilities

Wrapper around yaml_rust::yaml::Hash, which is a type alias for linked_hash_map::LinkedHashMap

Fields

data: Hash

Implementations

impl MergeYamlHash

pub fn new() -> MergeYamlHash

Create a new/empty hash

use merge_yaml_hash::MergeYamlHash;
let mut hash = MergeYamlHash::new();
assert_eq!(format!("{:?}", hash), "MergeYamlHash { data: {} }");
assert_eq!(format!("{:#?}", hash), "MergeYamlHash {\n    data: {},\n}");

pub fn merge(&mut self, file_or_str: &str)

Merge YAML file or string

use merge_yaml_hash::MergeYamlHash;
let mut hash = MergeYamlHash::new();
hash.merge("tests/a.yaml");
assert_eq!(hash.to_string(), "apple: 1\nbanana: 2");

use merge_yaml_hash::MergeYamlHash;
let mut hash = MergeYamlHash::new();
let yaml = "apple: 1\nbanana: 2".to_string();
hash.merge(&yaml);
assert_eq!(hash.to_string(), yaml);

pub fn merge_vec(&mut self, files_or_strings: Vec<String>)

Merge multiple YAML files or strings in order

No conflicts:

use merge_yaml_hash::MergeYamlHash;
let mut hash = MergeYamlHash::new();
let yaml1 = "apple: 1\nbanana: 2".to_string();
let yaml2 = "cherry: 3".to_string();
let result = "apple: 1\nbanana: 2\ncherry: 3";
hash.merge_vec(vec![yaml1, yaml2]);
assert_eq!(hash.to_string(), result);

With conflict; value in yaml2.banana simply overrides the value in yaml1.banana:

use merge_yaml_hash::MergeYamlHash;
let mut hash = MergeYamlHash::new();
let yaml1 = "apple: 1\nbanana: 2".to_string();
let yaml2 = "banana: 3".to_string();
let result = "apple: 1\nbanana: 3";
hash.merge_vec(vec![yaml1, yaml2]);
assert_eq!(hash.to_string(), result);

Trait Implementations

impl Debug for MergeYamlHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MergeYamlHash

fn default() -> MergeYamlHash

Returns the “default value” for a type.

impl Display for MergeYamlHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Serialize to YAML string

use merge_yaml_hash::MergeYamlHash;
let mut hash = MergeYamlHash::new();
let yaml = "apple: 1\nbanana: 2".to_string();
hash.merge(&yaml);
assert_eq!(hash.to_string(), yaml);