105 lines
4.1 KiB
Markdown
105 lines
4.1 KiB
Markdown
If this tool saves you time, please consider making a donation towards the continued maintainence and development: https://donate.biesbjerg.com
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[](https://donate.biesbjerg.com)
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# ngx-translate-extract
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Extract translatable (ngx-translate) strings and save as a JSON or Gettext pot file.
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Merges with existing strings if the output file already exists.
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## Install
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Install the package in your project:
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`npm install @biesbjerg/ngx-translate-extract --save-dev`
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Add a script to your project's `package.json`:
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```json
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...
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"scripts": {
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"extract-i18n": "ngx-translate-extract --input ./src --output ./src/assets/i18n/ --clean --sort --format namespaced-json"
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}
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...
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```
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You can now run `npm run extract-i18n` and it will extract strings from your project.
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## Usage
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**Extract from dir and save to file**
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`ngx-translate-extract --input ./src --output ./src/assets/i18n/template.json`
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**Extract from multiple dirs**
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`ngx-translate-extract --input ./src-a ./src-b --output ./src/assets/i18n/template.json`
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**Extract and save to multiple files using path expansion**
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_Note: This method does not work on Windows!_
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`ngx-translate-extract --input ./src --output ./src/i18n/{da,en}.json`
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On Windows you must specify each output destination individually:
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`ngx-translate-extract --input ./src --output ./src/i18n/da.json ./src/i18n/en.json`
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### JSON indentation
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Tabs are used by default for indentation when saving extracted strings in json formats:
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If you want to use spaces instead, you can do the following:
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`ngx-translate-extract --input ./src --output ./src/i18n/en.json --format-indentation ' '`
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### Marker function
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If you want to extract strings that are not passed directly to `TranslateService`'s `get()`/`instant()`/`stream()` methods, you can wrap them in a marker function to let `ngx-translate-extract` know you want to extract them.
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Install marker function:
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`npm install @biesbjerg/ngx-translate-extract-marker`
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```ts
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import { marker } from '@biesbjerg/ngx-translate-extract-marker';
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marker('Extract me');
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```
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You can alias the marker function if needed:
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```ts
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import { marker as _ } from '@biesbjerg/ngx-translate-extract-marker';
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_('Extract me');
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```
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_Note: `ngx-translate-extract` will automatically detect the import name_
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### Commandline arguments
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```
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Usage:
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ngx-translate-extract [options]
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Options:
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--version, -v Show version number [boolean]
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--help, -h Show help [boolean]
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--input, -i Paths you would like to extract strings from. You
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can use path expansion, glob patterns and multiple
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paths
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[array] [default: current working path]
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[array] [required] [default: current working path]
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--patterns, -p Extract strings from the following file patterns
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[array] [default: ["/**/*.html","/**/*.ts"]]
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--output, -o Paths where you would like to save extracted
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strings. You can use path expansion, glob
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patterns and multiple paths [array] [required]
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--format, -f Output format
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[string] [choices: "json", "namespaced-json", "pot"] [default: "json"]
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--format-indentation, --fi Output format indentation [string] [default: " "]
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--replace, -r Replace the contents of output file if it exists
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(Merges by default) [boolean]
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--sort, -s Sort strings in alphabetical order when saving
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[boolean]
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--clean, -c Remove obsolete strings when merging [boolean]
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--key-as-default-value, -k Use key as default value for translations
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[boolean]
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--null-as-default-value, -n Use null as default value for translations
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[boolean]
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```
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