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Link to the original text ：DevWeekly | The first 2 period ： Refactoring code 10 Best practice

DevWeekly Starting every Friday on Github, Welcome to Star And collect ！

DevWeekly Collect and sort out weekly high-quality developer content , Include Open source project 、 Resource tools 、 Technical articles Other aspects .

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1. Star And collect items DevWeekly
2. Focus on You know ：Jackpop

Open source project

1.dot

Python Star:2.6k

dot（Deepfake Offensive Toolkit） It's a will deepfakes In real time 、 Controllable tools for online video .

that ,deepfakes What is it? ？

The simple translation is deep forgery , let me put it another way , It is through artificial intelligence technology , It can graft the facial features of the target object onto the imitated object , Change the face of the target object .

2.codecat

Python Star:241

CodeCat Is a can help you use the static code analysis function to find / Open source tools that track user input and security vulnerabilities , This is very valuable for security control in code development .

At present, it applies to C、C++、GO、Python、javascript、Swift、PHP、Ruby、ASP、Kotlin、Dart and Java.

To sum up , It has the following characteristics ：

• according to Regex Custom rules for recursive code search
• Syntax highlights in the code view
• A system for managing rules
• Control users' resources
• according to IP Address allow list control HTTP Resources accessed
• follow OWASP Application of safety practices

3.OCRmyPDF

Python Star:6.8k

PDF There are many different types , Directly through word And other formats can be directly copied and pasted , Simple operation . however , Scanning version of PDF It's more troublesome .

OCRmyPDF For scanning PDF File to add OCR Text layer , So that it can be searched or copied and pasted .

It has the following characteristics ：

• Based on the ordinary PDF Generate a searchable PDF/A file
• take OCR The text is placed exactly under the image , To facilitate replication / Paste
• Maintain the accurate resolution of the original embedded image
• Optimize PDF Images , The generated file is usually smaller than the input file
• Use Tesseract OCR engine , Support to identify 100 A variety of languages
• Can handle thousands of pages of documents

4.data-diff

Python Star:1.3k

data-diff Is a command line tool and Python library , It can be used to compare the differences between two different databases .

at present , It has been verified on many different types of databases , And the comparison results can be passed CLI/API To create monitoring and alarms , It can be compatible with different field types . It's also very fast ,10s It can be verified in 25M+ Row data .

data-diff Split the table into smaller pieces , Then check each segment in two databases . When the checksums of a segment are not equal , It will further divide this segment into smaller segments , Check these segments , Until it gets a different line .

5.cfg4j

Java Star:541

Modern configuration library , To use Java Distributed applications written .

cfg4j, That is to say configuration for Java, An open source configuration library , It can be used for Java Developed distributed applications .

It has the following characteristics ：

• Auto reload configuration
• Powerful configuration mechanism （ Interface binding , Multi source support and fallback strategy , Merger and so on ）.
• Distributed environment friendly （ cache , Support multiple environments [ test , Pre development , production ],…)
• Reading configuration ：Consul、Git repos（YAML and / Or attributes ）、 file 、Classpath, …
• And DI Seamless integration of containers ：Spring、Guice etc.
• And Metrics Library integration to show performance metrics
• After a lot of testing （99% Code coverage ）
• Complete documentation

6.Decompiler

Kotlin Star:58

An open source, free Java Decompile GUI Tools .

seeing the name of a thing one thinks of its function , With this tool , We can edit the compiled Java jar package , Can decompile complex Java applets And binary files , Generate accurate source code .

7.scrutiny

Go Star:1.5k

For smart S.M.A.R.T Monitored WebUI.

If you are running a server with several hard disks , You may already be familiar with S.M.A.R.T and smartd A daemon .

smartd It's a lot of monitoring ATA、IDE and SCSI-3 Self monitoring built in the hard disk 、 Analysis and Reporting Technology （SMART） System daemon .

SMART The purpose of is to monitor the reliability of hard disk and predict the failure of hard disk , And carry out self-test of different types of hard disks .

Scrutiny It is a simple and centralized application , There are several core functions ：

• Web UI instrument panel
• smartd Integrate
• Automatically detect all connected hard disks Historical trend S.M.A.R.T Index tracking
• Customize thresholds with realistic failure rates
• Temperature tracking

8.sake

Go Star:435

sake Is a command running tool for local and remote hosts .

you are here sake.yaml Define servers and tasks in the configuration file , Then you can run the task on the server .

sake There are a lot of functions ：

• Mission 、 Automatic completion of servers and labels
• adopt SSH Enter the server or docker Containers
• adopt sake list servers|tasks List servers / Mission
• Display task output in tabular format sake run result

9.codewarrior

C Star:170

An open source code search tool and static code analysis tool , It has the following functions ：

• Search for code through coincidence code mode
• Custom rule
• With network socket resources HTTPd View
• Recursive scanning
• Highlight syntax through programming language
• Control through the Allow list IP Address access resources

10.wayfire

C++ Star:1.5k

Wayfire It's a 3D Wayland Synthesizer , Inspired by Compiz And based on wlroots.

It aims to create a customizable 、 Scalable and lightweight environment , Without sacrificing appearance .

Resource tools

1.Pomsky

Pomsky Is a language that can be compiled into regular expressions , It is currently in alpha Stage .

Pomsky Can pass CLI or Rust Macro to use .

Some examples ：

# String
'hello world'                 # hello world

# Greedy repetition
'hello'{1,5}                  # (?:hello){1,5}
'hello'*                      # (?:hello)*
'hello'+                      # (?:hello)+

# Lazy repetition
'hello'{1,5} lazy             # (?:hello){1,5}?
'hello'* lazy                 # (?:hello)*?
'hello'+ lazy                 # (?:hello)+?

# Alternation
'hello' | 'world'             # hello|world

2.GameShell

One learns how to use Unix shell The game of command .

Study Unix shell There is a certain cost ,GameShell Designed as a tool , Help students get in touch with shell, Through games, we can not only encourage learning, but also have fun .

3.Commands.dev

Every engineer has forgotten terminal commands , Because it is rarely used , Or there are complex parameters that are difficult to understand .

When that happens , Have to search in their terminal command history , Or open the browser to search .

Commands.dev It's about solving this problem .

Commands.dev It's an open source 、 Searchable 、 A collection of popular terminal commands collected from the entire Internet . You can sort （git、android、docker） Search for commands , Each command will tell you which parameters to insert .

4.PyScript

PyScript It is a kind of that can run in the browser Python.

It's a framework , Allow users to use HTML Interface and Pyodide、WASM etc. , Create rich Python Applications .

PyScript The framework provides users with a variety of experience levels with a variety of applications 、 Easy to learn programming language .

5.Hedy

Learning programming can be difficult , Not that programming itself is difficult , But there are many rules you need to remember , Just like when you start learning English .

similarly , You also need a lot of practice to learn programming .

Hedy Is a progressive programming language . It means , You don't have to learn all the rules at once , There are not so many rules in the first few levels , So you can easily adapt to programming .

At each level , Will add new rules , Increase the number of commands , Learn step by step .

Technical articles

1. use Java and Python Conduct data statistics and analysis

Mention data statistics and analysis , The first impression many students think of is Python perhaps R.

Actually ,Java It is also a programming language widely used in the field of data , for example ,Flink、hive All right Java Have good support .

In this article , Focus on how to use Java and Python Carry out simple data analysis on a large number of tabular data and calculate some statistical data .

ad locum , You can see different techniques for data analysis on each platform , Compare how they extend , And the possibility of applying parallel computing to improve its performance .

2. Refactoring code 10 Best practice

Writing code is not just for it to execute normally and output results , Also consider its design pattern 、 Extension line 、 Readability, etc .

Refactoring is the process of improving the design of existing code without changing its function .

As a software developer , We are constantly faced with the need to improve and optimize our code .

Whether it's for performance 、 Readability or maintainability , Refactoring code is a basic skill .

When refactoring code , There are many different technologies that can be used .

In this article , Let's introduce the method of refactoring code 10 Best practice .