node-创建文件目录

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  • 使用 Node 按照传入的 JSON 创建一个目录结构，避免了繁琐的文件创建过程
  • npm - generator-files

node-创建文件目录

希望达到的目的：传入指定格式的 JSON 数据，使用 Node 创建相应的文件夹和文件

JSON 格式

  1. 如果 KEY 不是 files，将使用 KEY 来作为创建文件夹的文件夹名称
  2. 如果 KEY 是 files，其值（数组或者字符串）将作为创建文件的依据

示例：

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{
    "src": {
        "pages": {
            "other": {
                "style": {
                    "css": {
                        "files": ["other.css"]
                    },
                    "scss": {
                        "files": ["other.scss"]
                    }
                },
                "script": {
                    "js": {
                        "files": ["other.js"]
                    }
                },
                "files": ["other.html", "entry.js"]
            }
        },
        "resource": {
            "images": {},
            "fonts": {},
            "media": {}
        },
        "style": {
            "css": {
                "files": ["index.css", "main.css"]
            },
            "scss": {
                "files": ["index.scss", "main.scss"]
            }
        },
        "script": {
            "js": {
                "files": ["index.js", "main.js"]
            }
        },
        "public": {
            "script": {},
            "style": {},
            "images": {},
            "fonts": {},
            "media": {}
        },
        "files": ["index.html", "entry.js"]
    },
    "files": [
        ".nvmrc",
        "webpack.dev.js",
        "webpack.common.js",
        "webpack.prod.js"
    ]
}

创建目录结构

这里使用 yargs 来接受命令行参数

generator_files.js

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onst yargs = require("yargs")
const argv = yargs.argv;
const path = require("path");
const fs = require("fs");

yargs.scriptName("generate_files")
  .usage('$0 [args]').describe('files', "file JSON path").describe('basepath', "generated file path").help('h').argv;


const dir_structure = argv.files ? require(path.resolve(process.cwd(), argv.files)) : require(path.resolve(__dirname, './lib/files.json'));

const create_dir = path => {
    try {
        fs.statSync(path, (err, state) => {
            if (!state.isDirectory()) {
                fs.mkdirSync(path);
            }
        });
    } catch (err) {
        fs.mkdirSync(path);
    }
};

const create_file = path => {
    try {
        fs.statSync(path, (err, state) => {
            if (!state.isFile()) {
                fs.writeFileSync(path, "");
            }
        });
    } catch (err) {
        fs.writeFileSync(path, "");
    }
};

const create_structure = (structure, base_path) => {
    for (const [key, item] of Object.entries(structure)) {
        if (key == "files") {
            if (Array.isArray(item)) {
                item.forEach(v => {
                    create_file(path.resolve(process.cwd(), base_path + "/" + v));
                });
            } else if (typeof item === "string") {
                create_file(path.resolve(process.cwd(), base_path + "/" + item));
            }
        } else {
            create_dir(path.resolve(process.cwd(), base_path + "/" + key));
            create_structure(
                item,
                path.resolve(process.cwd(), base_path + "/" + key)
            );
        }
    }
    fs.writeFileSync(base_path + "/" + ".nvmrc", process.version.slice(1));
};

create_structure(dir_structure, argv.basepath || "./");

使用方式

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node ./generator_files.js --path=./files_json --basepath=./