refactoring pdf github

Pizzashop refactoring exercise. Free Download Refactoring to Patterns PPT and PDF: The Refactoring to Patterns is a book written by the Joshua Kerievsky, who is the founder & CEO of Industrial Logic organization.It explains the practice of refactoring in the agile community. Refactoring. There was a decision to use Dapper to facilitate database access code. Refactoring exercise #1 . The six large Java generic libraries that were analyzed were also refactored by our tool. 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The mantra of refactoring is clean code and simple design. 39 Multi-criteria Code Refactoring Using Search-Based Software Engineering: An Industrial Case Study ALI OUNI, Osaka University MAROUANE KESSENTINI, University of Michigan-Dearborn HOUARI SAHRAOUI, University of Montreal KATSURO INOUE, Osaka University KALYANMOY DEB, Michigan State University One of the most widely used techniques to improve the quality of existing software systems … Skip to content. The refactored code of the libraries was compiled us-ing javac. Multi-Decoder-DPRNN is maintained by JunzheJosephZhu. Read about refactoring (below) and create your own refactoring exercise for other students. 0000001727 00000 n ... A beautiful PDF containing 50 incredibly visual chapters spread across 200+ painstakingly typeset pages. be found on Github. that refactoring activities break less than 37% of all client-used APIs. Section 6 outlines related work, and Section 7 concludes. For example you might have a form that looks like this: You've only used ValidationProvider and ValidationObserver to build forms so far, but building forms like that can get tedious and time consuming especially for very large forms. Rider EAP versions (on Windows) There might be an issue with Visual Studio 2017 (on Windows), but I've not been able to dig into it as of yet. refactoring improving the design of existing code object. p�|��L��]�ԫQj��[�2�"�r�&�W�1 �4.��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{�{��{��u��׺��{��{�^��{��?߽�߽�R^��~��~��{߽�߽��u�~��~��׽�߽�ߺ�^��~��~��{߽�߽��u�~��~��׽�߽�ߺ�W��T��=ג��}O��,�~�ݛ��(��m�(3��h��Q]/S�6ٹ��x��v�G'�IL^*��ɏ�{V ��GZ�� _$�u��z�s7[{��ySq��. Section 5 describes the design, implementation, and evaluation of our binary refactoring browser. Mechanics: see references.Selecting which variables This extension integrates refactoring information into GitHub repositories commits written in Java. ��Ȟ4�7��ipu��Q��E��WX�Ā4�@�X�94�|��Q��W��g0g�u�P��8�a>��!��L)2@�� )R ��pO endstream endobj 262 0 obj 762 endobj 251 0 obj << /Type /Page /Parent 239 0 R /Resources 252 0 R /Contents 254 0 R /Rotate 90 /MediaBox [ 0 0 612 792 ] /CropBox [ 36.72 36.72 576 756 ] >> endobj 252 0 obj << /ProcSet [ /PDF /Text /ImageC ] /Font << /TT2 256 0 R /TT4 258 0 R >> /XObject << /Im1 259 0 R >> /ExtGState << /GS1 260 0 R >> /ColorSpace << /Cs5 253 0 R >> >> endobj 253 0 obj [ /CalRGB << /WhitePoint [ 0.9505 1 1.089 ] /Gamma [ 2.22221 2.22221 2.22221 ] /Matrix [ 0.4124 0.2126 0.0193 0.3576 0.71519 0.1192 0.1805 0.0722 0.9505 ] >> ] endobj 254 0 obj << /Length 513 /Filter /FlateDecode >> stream Clone via HTTPS Clone with Git or checkout with SVN using the repository’s web address. This page was generated by GitHub Pages. A. Bug-ﬁx & Bug-introducing Changes Deﬁnition 1—Bug-ﬁx change. ... Refactoring - Improving the Design of Existing.pdf Go to file Go to file T; Go to line L; Copy path andrewprofile Add book. Download PDF Software Development, Design and Coding : With Patterns, Debugging, Unit Testing, and Refactoring Authored by John F Dooley Released at - Filesize: 5.03 MB Reviews This composed book is fantastic. Refactoring rules were applied separately. GitHub Gist: instantly share code, notes, and snippets. Movie Rental refactoring problem from Martin Fowler’s presentation and article. .�MY��ey�x��O��%��U.2�$��2��3�U ��4�G'Ef�$�V)l]0Qg�1��&�M��Q�B'eY3T�aR��6��u&:�,T�c��$P8]�F��6�� *�1�N�(��l�qq�P^��|!MW@�L�)��ǀZP t�8';aB�'��Jx,�(srl��)��jW��'N�V��Ț�5�q�I��-� R��u �.Y�� s��~��$��aP@�D�a�'`��e�RY�CA��P h�(��s�M��-`Z �zh��u�d6o`` �``6v�``RRK�``RRo �� H�b```f``��d�`d@ AV6�8G!A 0a>�n�b�l),R�rL��*00�?�ac�b�l�t�� H�TR��0��+�h��k;vsB�*v-�aš The following refactorings are suppported (with more planned): Rename Refactorings; Extract Variable Refactorings; Extract Method Refactorings; In the course of joint development, we made architectural tweaks that resulted in the two projects now being separate - which makes them easier to maintain and contribute to. INTRODUCTION Refactoring is the process of improving the design of an existing code base, without changing its behavior [26]. I have tested running this code in the following IDE's, and all seems to work fine: 1. 2. refactoring-demo for SaCSS vol.29. refactoring improving the design of existing code c2 com. Skip to content. github hugomatilla refactoring summary summary of. Data Level Refactoring Replace magic number/strings with named constants. Leafactor analyzed 6.79GB of Android projects in 4.5 hours, totaling 15308 Java ﬁles and 15103 XML ﬁles. # Refactoring Forms # Extracting Input Fields. GitHub Gist: instantly share code, notes, and snippets. Created Aug 13, 2014. Refactoring Exercises. Refactoring, software evolution, code smells, GitHub 1. Created Jun 19, 2012. corresponding refactoring operations, as perceived by software engineers. Visual Studio Community 2017 (for Mac) 3. Reworking refactoring examples like this make me very familiar with git. Get started. All gists Back to GitHub Sign in Sign up Sign in Sign up {{ message }} Instantly share code, notes, and snippets. This post is part of a series in which I describe my contributions to the IntelliJ Rust plugin.. Refactoring.Guru has 11 repositories available. 0000004180 00000 n The extension was created to provide more advanced visualization of the refactoring changes and to make the inspection of source code changes easier for developers to improve their productivity. w33zy / Refactoring with VueJS. Different Levels of Refactoring Code Complete, Ch 24 1. GitHub’s newest redesign is a perfect example of visual refactoring. These results have also been conﬁrmed by Silva et al. Apr 25, 2019. You start digging in the code. Extract Method Extract Method Extract a block of code as a separate method. 重构速查表，基于《重构--改善既有代码的设计》. She remains a mem… Section 6 outlines related work, and Section 7 concludes. binary refactoring fits into the software development process. Routine Level Refactoring Extract a method The goal of refactoring is to pay off technical debt. Motivation: a) method is long and difficult to understand, b) a code block can be reused by several methods. Community Chat on Gitter Discuss on Scala Users. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. �?߽�߽�R^��~��~��{߽�߽��u�~��~��׽�߽�ߺ�^��~��~��{߽�߽��u�~��~��׽�߽�ߺ�^�$u']f{{��X`V��ق�4z��j9�y?��\\�k� �ݷ�B��? 0000002097 00000 n She completed her PhD in Neuroscience at the University of California, Berkeley in 2012 and holds a BSc in Physics from the University of Bristol and an MSc in Medical Physics from the University of British Columbia. MOTIVATION “Premature optimization is the root of all evil” C.A.R. ... Refactoring Improving the Design of Existing Code.epub. endstream endobj 255 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -665 -325 2028 1037 ] /FontName /ArialMT /ItalicAngle 0 /StemV 0 >> endobj 256 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 151 /Widths [ 278 0 0 0 0 0 0 0 333 333 0 0 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 0 0 0 0 0 1015 667 667 722 722 667 611 778 722 278 500 667 556 833 722 778 667 778 722 667 611 722 667 944 0 667 611 0 0 0 0 0 0 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 334 0 334 584 350 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 222 333 333 0 556 1000 ] /Encoding /WinAnsiEncoding /BaseFont /ArialMT /FontDescriptor 255 0 R >> endobj 257 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -628 -376 2034 1048 ] /FontName /Arial-BoldMT /ItalicAngle 0 /StemV 133 >> endobj 258 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 148 /Widths [ 278 0 0 0 0 0 0 0 333 333 0 0 278 333 278 278 0 556 556 556 0 0 0 0 0 556 333 0 0 0 0 611 0 722 722 722 722 667 611 0 722 278 0 722 0 833 722 778 667 778 722 667 611 722 667 944 0 667 0 0 0 0 0 0 0 556 611 556 611 556 333 611 611 278 278 556 278 889 611 611 611 611 389 556 333 611 556 778 556 556 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 278 500 500 ] /Encoding /WinAnsiEncoding /BaseFont /Arial-BoldMT /FontDescriptor 257 0 R >> endobj 259 0 obj << /Type /XObject /Subtype /Image /Width 960 /Height 720 /BitsPerComponent 8 /ColorSpace 253 0 R /Length 72145 /Filter /DCTDecode >> stream Last active Sep 3, 2018. PDFsam is also a free and open source application to split, merge, extract pages, rotate and mix PDF files. ç’‡èçê›Ş�„İ‘ƒ fárÔJ‹ÓT$à�}ø…Ô¥âÃ(VïÃ8Ì!x–ÏNæ“ ¨xY–s½|�Æt–eYğn’Îx—¿NF¡,¥r{¢k™ (ä¥B‰ŸÀ–H"\¹!^ò2ö£9z3ûe¦ÈÖ„?HÄDN3.-'¤&^=aø±Œƒû8L0B.½ÔE¦±RŸêB•ÑuÉÓ.Ò…BF çÀ( Refactoring, if not done properly, can set you back days, even weeks. Star 0 Fork 0; Star Code Revisions 1. JoshCheek / gist:2952094. 0000001916 00000 n Plotting the most referenced Refactorings with Node.js, PDF.js, and Chart.js Refactoring (2nd Edition) by Martin Fowler is one the best programming books I have read. Kirstie Whitaker is a Research Fellow at The Alan Turing Institute(London, UK). Thereafter, we empirically analyze the impact of these refactoring operations on a set of common state-of-the-art design quality metrics. refactoring algorithm is sound. In this paper, we initiate the research on refactoring test suites, through performing an exploratory study on how developers refac-tor test code. Since the beginning, the adoption of refactoring practices was fos-tered by the availability of refactoring catalogues, as the one proposed by Fowler [10]. �^)��| � �� #�T۷6LY�;AF��-�Y�ي�vp�`��cPf�n��м@��m��#F+�*?��2��4&14�P8 |�cc�H�Ս'K5��A��@b�NM�IS�� Enforce in CI. Star 0 Fork 0; Star Code Revisions 1. GitHub Gist: instantly share code, notes, and snippets. Since the beginning, the adoption of refactoring practices was fos-tered by the availability of refactoring catalogues, as the one proposed by Fowler [10]. refactoring to patterns pdf github September 15, 2020 Uncategorized Clone via endstream R8 3"˩ ,# ci 6Kr Y) ywY Y Q- q%s˥18 /\H S ߊ d 7 , f % Pm F y P &p E TA~O S B c , R ˣ 1 P[Ue e J , bv ! refactoring to patterns pdf github. [15], which surveyed the Github contributors of The more you dig, Roslyn - Creating an introduce and initialize field refactoring 03 Jan 2015. MOTIVATION “Premature optimization is the root of all evil” C.A.R. GitHub Gist: instantly share code, notes, and snippets. Results: The statistical analysis of the obtained results shows that (i) a few state-of-the-art metrics are more popular than INTRODUCTION Refactoring is the process of improving the design of an existing code base, without changing its behavior [26]. 1A2# QBa$3Rq�b�%C��&4r p57 "In the end, all the earlier points come down to this: Refactoring helps you develop code more quickly." Pizzashop refactoring exercise. Refactoring, software evolution, code smells, GitHub 1. And refactoring becomes riskier when practiced informally or ad hoc. View on GitHub This is the github project page for MultiDecoder-DPRNN. Refactor Clojure Code. Routine Level Refactoring Extract a method x S n 0 + DX ) =) U q G ٱgvw ~Ğ +&k b= /! Statement Level Refactoring Introduce explanatory variable 3. I've put together this catalog to help you find and explore the refactorings the 2nd edition. Extract Method Extract Method Extract a block of code as a separate method. Refactoring Exercises. 0000003636 00000 n GitHub Gist: instantly share code, notes, and snippets. It’s exactly what I needed when I was struggling to make my projects look awesome. fGg0�7W�S�Z:D�Q�rA�Y��`� �&��`(��%%]XM��F��`؀nDQ�((��a��t ��8g�r� Revisiting the Relationship Between Code Smells and Refactoring Norihiro Yoshida , Tsubasa Saika y, Eunjong Choiy, Ali Ouni and Katsuro Inoue Nagoya University, Japan yoshida@ertl.jp yOsaka University, Japan ft-saika@ist, ejchoi@osipp, ali@ist, inoue@istg.osaka-u.ac.jp Abstract—Refactoring is a critical technique in evolving soft- ware systems. Overuse of IF statements easily leads to ball-of-mud code. Refactoring. Embed. Finally, we also describe how refactoring may be interleaved within a bug-ﬁx change. why refactoring changes may distort the SZZ results. Refactoring UI takes everything we know about design and bundles it into one comprehensive package, including a book, screencasts, a component gallery, custom designed assets, and more. Introduction: We worked on two open source softwares - JEdit and PDFSam.JEdit is a free and open source mature text editor. All gists Back to GitHub. Learn more about what's inside → Star 0 Fork 0; Star GitHub Gist: instantly share code, notes, and snippets. I ��ʟ��Mە��A�c��㣆��B:ivVAi k�/��=��z^0� ��҉�>e�F�maݳնװ��B0H$�X��/ �g�Բ�*] ��3b��0�ΔT�`e�h�-�{�E^��C#��"ӹ�|'0��Zd��|�S��A� l�1w"G��+��9�8Q�:~k�� )Zea� ��)R6�� I have added the following to this form: • Zero, one or two asterisks beside the name of every refactoring. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. In the 20 years since the first edition this has become an uncontroversial point and "refactoring" has entered the daily lexicon of the software engineering discipline. Here I’ll take a look at how we can create a Roslyn code refactoring using Visual Studio 2015 Preview.. We’ll make a code refactoring that introduces and initializes a field, based on a constructor argument. 0000000631 00000 n She joined the Department of Psychiatry at the University of Cambridge in 2012 and conducted her postdoctoral research in the Brain Mapping Unit under the supervision of Professor Ed Bullmore. Full stop. Automatically enforce refactoring and linting rules on every code review. 2. Sign in Sign up Instantly share code, notes, and snippets. Seoul … Read about refactoring (below) and create your own refactoring exercise for other students. For those of you who are not familiar with Dapper, it’s a set of extension methods to IDbConnection, which allows to easily map C# object to SQL query parameters, as well as SQL query result to C# objects. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. All code samples are written in C#, and therefor will follow C# coding conventions (versus any Java coding conventions you might see in the book). Examples of refactoring names: within a function, within a namespace, within a project. 0000001560 00000 n Movie Rental refactoring problem from Martin Fowler’s presentation and article. All gists Back to GitHub Sign in Sign up Sign in Sign up {{ message }} Instantly share code, notes, and snippets. Visual Studio 2015 (on Windows) 2. Different Levels of Refactoring Code Complete, Ch 24 1. The old interface, while very useful, was getting more and more cluttered as new features were added over the years. My main reason for avoiding IF statements is that by removing them code gains structure and the design improves. Docs Get started Rules Extend Scalafix. Since the beginning, the adoption of refactoring practices was fos-tered by the availability of refactoring catalogues, as the one proposed by Fowler [10]. Refactoring the code can help to fix those less tangible problems - making code easier to understand, modify and maintain. General refactor steps such as changing function names can be done with the Evil tools, iedit, narrowing and helm-ag.These do not require a running Clojure REPL. Refactoring and Design Patterns. hienlth / Refactoring. Star 0 Fork 0; Code Revisions 3. endobj After having read Design Patterns [DP], you reach a point where you say to yourself, “If I had only known this pattern, my system would be so much cleaner today.” The book you are holding introduces you to several sample %PDF-1.3 %�� The largest project in terms of Java ﬁles is TinyTravelTracker (1878), while NewsBlue is the largest in terms of XML ﬁles (2109). 0000001538 00000 n I have utilized this book to train and coach developers on my team, improve the design of my code, and grow as a professional. GitHub; ScalafixRefactoring and linting tool for Scala. Mechanics: see references.Selecting which variables p58 "In almost all cases, I'm opposed to setting aside time for refactoring. Motivation: a) method is long and difficult to understand, b) a code block can be reused by several methods. The author has illustrated the method to introduce the patterns into a present codebase. The Clean Coder-A Code of Conduct for Professional Programmers.pdf. ��5'�S6��DTsEF7Gc(UVW��d�t��e��)8f�u*9:HIJXYZghijvwxyz�� m!1 "AQ2aqB�#�R�b3 �$��Cr��4%�ScD�&5T6Ed' identify refactoring opportunities and (2) automatically refac-tor the code to remove code smell instances. �� Adobe d� �� " �� The form I am using in this work is nearly identical to the one used by Martin in his Refactoring book. 0000003447 00000 n Skip to content. Sign in Sign up Instantly share code, notes, and snippets. Plotting the most referenced Refactorings with Node.js, PDF.js, and Chart.js Refactoring (2nd Edition) by Martin Fowler is one the best programming books I have read. Skip to content. why refactoring changes may distort the SZZ results. Automate day-to-day code health tasks or write one-time migrations scripts. 249 0 obj << /Linearized 1 /O 251 /H [ 688 872 ] /L 396711 /E 76735 /N 71 /T 391612 >> endobj xref 249 14 0000000016 00000 n binary refactoring fits into the software development process. Refactoring is the controllable process of systematically improving your code without writing new functionality. Indeed, while most of these energy smells can be removed by applying simple program transformations, e.g.,adding a single state-ment or a keyword into a … What would you like to do? We are still refactoring the code, and will open source shortly after. this site on github; mentor page; edit this page on github Last active Oct 10, 2020. 2. 0000000688 00000 n Follow their code on GitHub. 0000002685 00000 n u!" Refactoring. refactoring improving the design of existing code martin. All gists Back to GitHub. Section 5 describes the design, implementation, and evaluation of our binary refactoring browser. By refactoring the code in version one to remove the IF statement, there never existed a spot in the code for it ever to get bad. Skip to content. 2 638, Refactoring—Imporving the Design of Existing Code What We Will Cover • An example of refactoring – Blow by blow example of changes – Steps for illustrated refactorings • Background of refactoring – Where it came from – Tools – Why and When Fowler, Refactoring: Improving the Design of Existing Code, Addison-Wesley, 1999 Refactoring. Refactoring UI takes everything we know about design and bundles it into one comprehensive package, including a book, screencasts, a component gallery, custom designed assets, and more. 0000002867 00000 n Apr 25, 2019. Bug-ﬁx changes refer to changes that are known to ﬁx a bug that is reported on an Issue Tracking System (ITS, e.g., JIRA and Bugzilla). In a more qualitative analysis, we show two documented cases of where non-refactoring API breaking changes are motivated other maintenance issues (i.e., bug ﬁx and new features) and involve more complex refactoring operations. Refactoring and Design Patterns. With the relation between unit testing and refactoring seem-ingly clear, we started questioning what the actual beneﬁts are from having unit tests available during refactoring. Refactoring, software evolution, code smells, GitHub 1. History: Refactoring Essentials started out as NR6Pack, and was part of the NRefactory 6 repository. refactoring — the hygienic bmanojkumar / java.java. Just-In-Time Test Smell Detection and Refactoring: The DARTS Project Stefano Lambiase SeSa Lab - University of Salerno Fisciano (SA), Italy s.lambiase7@studenti.unisa.it Andrea Cupito ... the plugin publicly available and open-source on Github, in an. In this work, we monitor the refactoring activities of test files, belonging to 250 open-source Android apps. software-development-ebooks / [xUnit Test Patterns Refactoring Test Code (Addison-Wesley Signature Series (Fowler)) Kindle Edition by Gerard Meszaros - 2007].pdf Go to file Go to file T Zero asterisks mean I don’t use the refactoring very often, one asterisk means I use it … stream by Kevin Rutherford Provides examples of Refactoring patterns that can be used in a variety of scenarios. �E�N��k �O�)��-��g�A��h�]=�y�T��)�I��|ٶ�E(%�7)�g��l/G:�ޢ�n�J��s� '��K}�q��N]��=��戍য়�0�w�FH��"B��P>a�]��c�5� 9�A��N��az�Ï1�L�X��i{++��o�δ�X��ս��ꪮ��3?�NR8zV�w��gY�~fr� -�׊ @±¶îıëqGR”ÿãõRYÏ�õ¢§×ÿèŒ~MnÀĞXª¸$ŞvægQ˜�Ò��£c?��ßéf½|. Section B in the Appendix formally argues why the refactoring algorithm preserves the … The following refactorings are suppported (with more planned): Rename Refactorings; Extract Variable Refactorings; Extract Method Refactorings; Sort Imports refactoring operations do not target classes exhibiting low cohesion and/or high coupling, and that only 40% of the times refactoring operations have been performed on classes affected by a design ﬂaw. A. Bug-ﬁx & Bug-introducing Changes Deﬁnition 1—Bug-ﬁx change. Each card shows the name used in the second edition together with any aliases for the refactoring (such as names for first edition refactorings that it replaces). Add files via upload. GitHub engineer Gregor Martynus recently described his journey to refactor GitHub official REST JavaScript SDK, originally containing about 16 thousand lines of code across six files total, into a mor I’ve done this for many … Created Jan 1, 2019. Refactoring Improving The Design Of Existing Code refactoring martin fowler. A year ago I started working on a set of projects that requires accessing data from a huge legacy database. In particular, we started thinking whether: INTRODUCTION Refactoring is the process of improving the design of an existing code base, without changing its behavior [27]. Interactive Refactoring for GPU Parallelization of Afﬁne Loops Kostadin Damevski, Madhan Muralimanohar Virginia State University Petersburg, VA 23806 fkdamevski,mmadhang@vsu.edu Abstract—Considerable recent attention has been given to the problem of porting existing code to heterogeneous comput- A recent study involving GitHub contributors has shown 0000076495 00000 n Soon you discover new opportunities for change, and you dig deeper. All gists Back to GitHub Sign in Sign up Sign in Sign up {{ message }} Instantly share code, notes, and snippets. Bug-ﬁx changes refer to changes that are known to ﬁx a bug that is reported on an Issue Tracking System (ITS, e.g., JIRA and Bugzilla). In my view refactoring is … Our mining procedure allows us to determine the most frequent refactoring op- Contribute to wangvsa/refactoring-cheat-sheet development by creating an account on GitHub. The refactoring of software clones can help to reduce the size of the code-base [1], [2], [3], avoid software defects due to inconsistent clone updates [4], [5], and minimize the negative effect of duplicated code on maintenance effort and cost [6], [7]. Finally, we also describe how refactoring may be interleaved within a bug-ﬁx change. Full stop. GitHub has just made available Scientist 1.0, a Ruby library that will help developers refactor or rewrite their code with confidence, writes GitHub engineer Jesse Toth, and that was used at GitHub ov alvinncx / models.rb. 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