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# ngx-translate-extract
Extract translatable (ngx-translate) strings and save as a JSON or Gettext pot file.
Merges with existing strings if the output file already exists.

## Usage
Install the package in your project:

`npm install @biesbjerg/ngx-translate-extract --save-dev`

Add an `extract` script to your project's `package.json`:
```
"scripts": {
  "extract": "ngx-translate-extract --input ./src --output ./src/assets/i18n/*.json --clean --sort --format namespaced-json"
}
```
You can now run `npm run extract` to extract strings.

## Commandline examples

**Extract from dir and save to file**

`ngx-translate-extract -i ./src -o ./src/i18n/strings.json`

**Extract from multiple dirs**

`ngx-translate-extract -i ./src/folder-a ./src/folder-b -o ./src/i18n/strings.json`

**Extract and save to multiple files**

`ngx-translate-extract -i ./src -o ./src/i18n/{da,en,fr}.json`

**or**

`ngx-translate-extract -i ./src -o ./src/i18n/da.json ./src/i18n/en.json ./src/i18n/fr.json`

**or (update only)**

`ngx-translate-extract -i ./src -o ./src/i18n/*.json`


Modify the scripts arguments as required.

## Commandline arguments
```
Usage:
ngx-translate-extract [options]

Options:
  --version, -v   Show version number                                  [boolean]
  --help, -h      Show help                                            [boolean]
  --input, -i     Paths you would like to extract strings from. You can use path
                  expansion, glob patterns and multiple paths
                     [array] [default: "/Users/kim/ionic/ngx-translate-extract"]
  --patterns, -p  Extract strings from the following file patterns
                                    [array] [default: ["/**/*.html","/**/*.ts"]]
  --output, -o    Paths where you would like to save extracted strings. You can
                  use path expansion, glob patterns and multiple paths
                                                              [array] [required]
  --format, -f    Output format
          [string] [choices: "json", "namespaced-json", "pot"] [default: "json"]
  --replace, -r   Replace the contents of output file if it exists (Merges by
                  default)                            [boolean] [default: false]
  --sort, -s      Sort strings in alphabetical order when saving
                                                      [boolean] [default: false]
  --clean, -c     Remove obsolete strings when merging[boolean] [default: false]