116 lines
3.6 KiB
Markdown
116 lines
3.6 KiB
Markdown
## Examples
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{% tabs %}
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{% tab label="Using TypeScript Transformer Plugins" %}
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`@nx/js:tsc` can run the [TypeScript Transformers](https://github.com/madou/typescript-transformer-handbook) by using the `transformers` option.
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```json {% fileName="libs/ts-lib/project.json" %}
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{
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"build": {
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"executor": "@nx/js:tsc",
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"options": {
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"outputPath": "dist/libs/ts-lib",
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"main": "libs/ts-lib/src/index.ts",
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"tsConfig": "libs/ts-lib/tsconfig.lib.json",
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"assets": ["libs/ts-lib/*.md"],
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"transformers": [
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"@nestjs/swagger/plugin",
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{
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"name": "@automapper/classes/transformer-plugin",
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"options": {}
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}
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]
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}
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}
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}
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```
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{% /tab %}
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{% tab label="Inline libraries" %}
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`@nx/js:tsc` can inline non-buildable libraries by opt-in to **Inlining** mode with `external` option.
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```json {% fileName="libs/ts-lib/project.json" %}
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{
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"build": {
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"executor": "@nx/js:tsc",
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"options": {
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"outputPath": "dist/libs/ts-lib",
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"main": "libs/ts-lib/src/index.ts",
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"tsConfig": "libs/ts-lib/tsconfig.lib.json",
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"assets": ["libs/ts-lib/*.md"],
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"external": "all"
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}
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}
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}
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```
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```shell
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npx nx build ts-lib --external=all
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```
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`@nx/js:tsc` can also inline buildable libraries by setting `external: 'none'`
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```json {% fileName="libs/ts-lib/project.json" %}
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{
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"build": {
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"executor": "@nx/js:tsc",
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"options": {
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"outputPath": "dist/libs/ts-lib",
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"main": "libs/ts-lib/src/index.ts",
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"tsConfig": "libs/ts-lib/tsconfig.lib.json",
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"assets": ["libs/ts-lib/*.md"],
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"external": "none"
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}
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}
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}
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```
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```shell
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npx nx build ts-lib --external=none
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```
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{% /tab %}
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{% tab label="Batch mode execution" %}
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{% callout type="check" title="Available since Nx 16.6.0" %}
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The `@nx/js:tsc` batch implementation was introduced in Nx **16.6.0**.
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{% /callout %}
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The `@nx/js:tsc` executor supports running multiple tasks in a single process. When running in batch mode, the executor uses the [TypeScript APIs for incremental builds](https://www.typescriptlang.org/docs/handbook/project-references.html#build-mode-for-typescript). This results in a much faster build time when compared to the default implementation (the bigger the task graph to run, the more the performance improvements).
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{% callout type="warning" title="Experimental feature" %}
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Executing tasks in batch mode is an experimental feature.
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{% /callout %}
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{% callout type="info" title="Requirements" %}
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Building a project with the `@nx/js:tsc` executor in batch mode requires all dependent projects to be buildable and built using the `@nx/js:tsc` executor.
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{% /callout %}
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To run your builds using the batch implementation, set the `NX_BATCH_MODE` environment variable to `true`:
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```shell
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NX_BATCH_MODE=true nx build ts-lib
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```
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For optimal performance, you could set the `clean` option to `false`. Otherwise, the executor cleans the output folder before running the build, which results in the loss of the [`.tsbuildinfo` file](https://www.typescriptlang.org/tsconfig/#tsBuildInfoFile) and, consequently, the loss of important optimizations performed by TypeScript. This is not a requirement. Even if the `clean` option is not set to `false` there are other important optimizations that are performed by the batch implementation.
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```json {% fileName="libs/ts-lib/project.json" %}
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{
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"build": {
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"executor": "@nx/js:tsc",
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"options": {
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"outputPath": "dist/libs/ts-lib",
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"main": "libs/ts-lib/src/index.ts",
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"tsConfig": "libs/ts-lib/tsconfig.lib.json",
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"assets": ["libs/ts-lib/*.md"],
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"clean": false
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}
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}
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}
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```
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{% /tab %}
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{% /tabs %}
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