nodejs packaging settings

Node.js is an open source cross-platform JavaScript running environment with advantages such as high performance and asynchronous I/O. In daily development, it is often necessary to package multiple Node.js files into an executable file for easy deployment and use. This article will introduce how to use the Node.js packaging tool to package multiple Node.js files into an executable file, and provide some common packaging settings.

1. Node.js packaging tools

In Node.js, there are a variety of packaging tools to choose from, such as npm package, pkg, nexe, etc. This article mainly introduces npm package and pkg.

1. npm package

npm package is a command in the npm module that comes with Node.js. It can package the project file into a file that can be run directly. When using npm package, you need to install it in global mode:

npm install -g npm-package

After the installation is complete, you can use the following command to package the Node.js file into an executable file:

npm-package .

where "." Indicates the current directory. This command will package all files in the current directory into an executable file.

2. pkg

pkg is another packaging tool for Node.js. It can package Node.js files into executable files and include the required Node. js running environment, so the packaged file can be run directly on a machine without Node.js environment. When using pkg, you need to install it first:

npm install -g pkg

After the installation is complete, you can use the following command to package the Node.js file into an executable file:

pkg filename.js

where filename.js needs to be packaged file name. After packaging is completed, three files will be generated: node.exe, filename, and filename.cmd. node.exe is an executable file containing the Node.js environment, and filename and filename.cmd are files that can be run directly.

2. Node.js packaging settings

1. Introducing dependency packages

In Node.js projects, some dependency packages are often used, such as Express, Mongoose, etc. When using the packaging tool to package the Node.js file, you need to package these dependency packages, otherwise it will not run. You can package all dependent packages by running the following command in the project folder:

npm install --save

This will install all dependent packages locally and save them to the package.json file.

2. Specify the entry file

When packaging, you need to specify the entry file, that is, the main file to be run after packaging. You can specify the entry file by adding the following code to the package.json file:

"bin": {
  "filename": "path/to/filename.js"
}

where filename is the packaged file name (no .js suffix is ​​required), and path/to is the path where the specified file is located. .

3. Set the output path

When using the packaging tool to package Node.js files, you can specify the directory where the packaged files are saved by setting the output path. You can add the following code in the package.json file to set the output path:

"pkg": {
  "out-path": "path/to/output/folder"
}

where path/to/output/folder is the path to the specified output directory.

4. Exclude files

There may be some files in the project folder that do not need to be packaged, such as test files, development documents, etc. These files can be excluded by adding the following code to the package.json file:

"pkg": {
  "exclude": [
    "*.test.js",
    "docs",
    "node_modules"
  ]
}

where *.test.js means to exclude all files ending with .test.js, docs means to exclude the docs folder, and node_modules means Exclude the node_modules folder.

5. Set the Node.js version

When using the packaging tool to package a Node.js file, you can specify the Node.js version required for the packaged file. You can add the following code to the package.json file to set the Node.js version:

"pkg": {
  "targets": [
    "node14-win",
    "node12-linux-arm"
  ]
}

where node14-win and node12-linux-arm indicate that the specified packaged file can be used in the Windows version of Node.js 14 and The Linux version of Node.js 12 runs.

3. Summary

In Node.js, there are a variety of packaging tools to choose from, such as npm package, pkg, etc. Use these packaging tools to package multiple Node.js files into an executable file for easy deployment and use. When using packaging tools, you can use some common packaging settings, such as specifying entry files, setting output paths, excluding files, setting Node.js versions, etc. Proficient in these packaging settings can provide more convenience for project packaging and deployment.

The above is the detailed content of nodejs packaging settings. For more information, please follow other related articles on the PHP Chinese website!