Extracts the string literal contents of TypeScript function calls.

Can also check that the function calls are valid calls to polyglot.t.

Usage

bin/ts-string-extractor -n function_name [-p tsconfig.json] [--check-polyglot] [--check-only] [file ...]

Example

Given a TypeScript file file.ts:

polyglot.t('hello');
polyglot.t('world');
polyglot.t('not' + 'valid');
polyglot.t("has a {name} but it's {missing}", {enam: 'whoops'});

Then running:

bin/ts-string-extractor -n polyglot.t --check-polyglot file.ts

Will yield JSON output:

{
  "hello": {
    "file": "file.ts",
    "line": 1,
    "column": 12
  },
  "world": {
    "file": "file.ts",
    "line": 2,
    "column": 12
  },
  "has a {name} but it's {missing}": {
    "file": "file.ts",
    "line": 4,
    "column": 12
  }
}

and errors:

Error in file.ts:3:12: First argument of polyglot.t('not' + 'valid') must be a string literal
Error in file.ts:4:12: Mismatched Polyglot substitution, text has [name,missing] but object literal has [enam]

Notes

• Works with any file that the TypeScript compiler is able to understand, including .js, .jsx, and .tsx.
• If -p tsconfig.json isn't specified then the tsconfig.json file in the current directory will be used, otherwise the default configuration.
• A --check-only flag is provided that runs only the checkers, it doesn't generate any json output.