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refactor: use plain object instead of enum (#5284)

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Erez Rokah 2021-04-25 14:06:07 +04:00 committed by GitHub
parent 65343c1238
commit 1ba7d83358
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1 changed files with 17 additions and 15 deletions
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32
packages/netlify-cms-core/src/formats/frontmatter.ts
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@ -3,11 +3,13 @@ import tomlFormatter from './toml';
import yamlFormatter from './yaml'; import yamlFormatter from './yaml';
import jsonFormatter from './json'; import jsonFormatter from './json';
enum Language { const Languages = {
YAML = 'yaml', YAML: 'yaml',
TOML = 'toml', TOML: 'toml',
JSON = 'json', JSON: 'json',
} } as const;
type Language = typeof Languages[keyof typeof Languages];
export type Delimiter = string | [string, string]; export type Delimiter = string | [string, string];
type Format = { language: Language; delimiters: Delimiter }; type Format = { language: Language; delimiters: Delimiter };
@ -58,11 +60,11 @@ function inferFrontmatterFormat(str: string) {
} }
switch (firstLine) { switch (firstLine) {
case '---': case '---':
return getFormatOpts(Language.YAML); return getFormatOpts(Languages.YAML);
case '+++': case '+++':
return getFormatOpts(Language.TOML); return getFormatOpts(Languages.TOML);
case '{': case '{':
return getFormatOpts(Language.JSON); return getFormatOpts(Languages.JSON);
default: default:
console.warn('Unrecognized front-matter format.'); console.warn('Unrecognized front-matter format.');
} }
@ -74,9 +76,9 @@ export function getFormatOpts(format?: Language, customDelimiter?: Delimiter) {
} }
const formats: { [key in Language]: Format } = { const formats: { [key in Language]: Format } = {
yaml: { language: Language.YAML, delimiters: '---' }, yaml: { language: Languages.YAML, delimiters: '---' },
toml: { language: Language.TOML, delimiters: '+++' }, toml: { language: Languages.TOML, delimiters: '+++' },
json: { language: Language.JSON, delimiters: ['{', '}'] }, json: { language: Languages.JSON, delimiters: ['{', '}'] },
}; };
const { language, delimiters } = formats[format]; const { language, delimiters } = formats[format];
@ -113,7 +115,7 @@ export class FrontmatterFormatter {
const { body = '', ...meta } = data; const { body = '', ...meta } = data;
// Stringify to YAML if the format was not set // Stringify to YAML if the format was not set
const format = this.format || getFormatOpts(Language.YAML); const format = this.format || getFormatOpts(Languages.YAML);
// gray-matter always adds a line break at the end which trips our // gray-matter always adds a line break at the end which trips our
// change detection logic // change detection logic
@ -134,13 +136,13 @@ export class FrontmatterFormatter {
export const FrontmatterInfer = new FrontmatterFormatter(); export const FrontmatterInfer = new FrontmatterFormatter();
export function frontmatterYAML(customDelimiter?: Delimiter) { export function frontmatterYAML(customDelimiter?: Delimiter) {
return new FrontmatterFormatter(Language.YAML, customDelimiter); return new FrontmatterFormatter(Languages.YAML, customDelimiter);
} }
export function frontmatterTOML(customDelimiter?: Delimiter) { export function frontmatterTOML(customDelimiter?: Delimiter) {
return new FrontmatterFormatter(Language.TOML, customDelimiter); return new FrontmatterFormatter(Languages.TOML, customDelimiter);
} }
export function frontmatterJSON(customDelimiter?: Delimiter) { export function frontmatterJSON(customDelimiter?: Delimiter) {
return new FrontmatterFormatter(Language.JSON, customDelimiter); return new FrontmatterFormatter(Languages.JSON, customDelimiter);
} }