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biesbjerg

Description

Extract translatable (using ngx-translate) strings and save as a JSON or Gettext pot file

466 Stars 125 Forks MIT License 264 Commits 42 Opened issues

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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.

Install

Install the package in your project:

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

Add a script to your project's

package.json
:
json
...
"scripts": {
  "i18n:init": "ngx-translate-extract --input ./src --output ./src/assets/i18n/template.json --key-as-default-value --replace --format json",
  "i18n:extract": "ngx-translate-extract --input ./src --output ./src/assets/i18n/{en,da,de,fi,nb,nl,sv}.json --clean --format json"
}
...
You can now run
npm run extract-i18n
and it will extract strings from your project.

Usage

Extract from dir and save to file

ngx-translate-extract --input ./src --output ./src/assets/i18n/strings.json

Extract from multiple dirs

ngx-translate-extract --input ./src-a ./src-b --output ./src/assets/i18n/strings.json

Extract and save to multiple files using path expansion

ngx-translate-extract --input ./src --output ./src/i18n/{da,en}.json

JSON indentation

Tabs are used by default for indentation when saving extracted strings in json formats:

If you want to use spaces instead, you can do the following:

ngx-translate-extract --input ./src --output ./src/i18n/en.json --format-indentation '  '

Marker function

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.

Install marker function:

npm install @biesbjerg/ngx-translate-extract-marker
import { marker } from '@biesbjerg/ngx-translate-extract-marker';

marker('Extract me');

You can alias the marker function if needed:

import { marker as _ } from '@biesbjerg/ngx-translate-extract-marker';

_('Extract me');

Note:

ngx-translate-extract
will automatically detect the import name

Commandline arguments

Usage:
ngx-translate-extract [options]

Output --format, -f Format [string] [choices: "json", "namespaced-json", "pot"] [default: "json"] --format-indentation, --fi Format indentation (JSON/Namedspaced JSON) [string] [default: " "] --sort, -s Sort strings in alphabetical order [boolean] --clean, -c Remove obsolete strings after merge [boolean] --replace, -r Replace the contents of output file if it exists (Merges by default) [boolean]

Extracted key value (defaults to empty string) --key-as-default-value, -k Use key as default value [boolean] --null-as-default-value, -n Use null as default value [boolean] --string-as-default-value, -d Use string as default value [string]

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] [required] [default: ["/Users/kim/apps/ngx-translate-extract"]] --output, -o Paths where you would like to save extracted strings. You can use path expansion, glob patterns and multiple paths [array] [required]

Examples: ngx-translate-extract -i ./src-a/ -i ./src-b/ -o strings.json Extract (ts, html) from multiple paths ngx-translate-extract -i './{src-a,src-b}/' -o strings.json Extract (ts, html) from multiple paths using brace expansion ngx-translate-extract -i ./src/ -o ./i18n/da.json -o ./i18n/en.json Extract (ts, html) and save to da.json and en.json ngx-translate-extract -i ./src/ -o './i18n/{en,da}.json' Extract (ts, html) and save to da.json and en.json using brace expansion ngx-translate-extract -i './src/*/.{ts,tsx,html}' -o strings.json Extract from ts, tsx and html ngx-translate-extract -i './src/*/!(.spec).{ts,html}' -o Extract from ts, html, excluding files with ".spec" strings.json

Note for GetText users

Please pay attention of which version of

gettext-parser
you actually use in your project. For instance,
gettext-parser:1.2.2
does not support HTML tags in translation keys.

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