Use Go language to develop file operation tools to easily process all files

Why do you need this tool?

• Safe and reliable: Built-in complete error handling mechanism
• Complete functions: Supports file inspection, creation, movement, deletion and other operations
• Easy to use: The API design is intuitive, you can understand it at a glance
• Excellent performance: Use Go standard library to achieve efficient and stable

Detailed explanation of core functions

1. File/directory existence check

// Check whether the file or directory existsexists, err := ("./config")
if err != nil {
    ("Check error:", err)
    return
}
if exists {
    ("File/directory exists!")
} else {
    ("File/directory does not exist!")
}

// Check whether the file exists specificallyif ("./") {
    ("The file exists!")
} else {
    ("The file does not exist!")
}

2. Bulk directory creation

// Create multiple directories at onceerr := (
    "./uploads",
    "./logs",
    "./temp",
)
if err != nil {
    ("Create directory failed:", err)
    return
}
("All directories were created successfully!")

3. File movement operation

// Move the file to a new locationerr := (
    "./temp/",    // Source file    "./archive/", // Target location)
if err != nil {
    ("File Movement Failed:", err)
    return
}
("File moves successfully!")

4. File deletion function

// Delete files or directorieserr := ("./temp")
if err != nil {
    ("Delete failed:", err)
    return
}
("Delete successfully!")

5. De-spaces of structure strings

// Define the test structuretype User struct {
    Name    string
    Email   string
    Address string
}

// Remove spaces from all string fields in the structureuser := &User{
    Name:    "  John Doe  ",
    Email:   " john@ ",
    Address: "  New York  ",
}
(user)
("Processed user information: %+v\n", user)

Practical application scenarios

1. File upload service

func HandleFileUpload(filePath string) error {
    // Check whether the upload directory exists    exists, err := ("./uploads")
    if err != nil {
        return err
    }
    
    // Create if the directory does not exist    if !exists {
        err = ("./uploads")
        if err != nil {
            return err
        }
    }
    
    // Move uploaded files to the target directory    return (filePath, "./uploads/")
}

2. Temporary file cleaning

func CleanupTempFiles() error {
    // Check whether the temporary directory exists    if ("./temp") {
        // Delete the entire temporary directory        return ("./temp")
    }
    return nil
}

Usage tips and precautions

• Path processing: Support relative and absolute paths, but it is recommended to use absolute paths to avoid ambiguity
• Permissions issues: Ensure that the program has sufficient file system permissions
• Error handling: All operations return error messages, it is recommended to handle them properly
• Concurrency security: Pay attention to security issues in concurrent scenarios when operating files

Performance optimization suggestions

• Used when creating a directory in batchesCreateDirCreate at one time
• useFileExistAlternativePathExistsCheck the existence of files
• Reasonable useTrimSpaceOptimize data processing

Summarize

Although this file operation tool library is simple in code, it has powerful functions and can meet 90% of file operation needs in daily development. Its API design is concise and clear, and it has perfect error handling, and is a tool library worth collecting.

Especially when dealing with file upload, temporary file management, directory structure maintenance and other scenarios, this tool library can make your code more concise and elegant.

Source code address

import "your-project/utils"

Add this powerful tool library to your project! I believe it will definitely help you solve various problems in file operation!

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