> All the above has been complicated by the fact that I accepted an academic job in August 2018, only to be told, after I had resigned from my previous job at Inria and moved to another country, that I wouldn’t be allowed to work on my own research projects (including Pijul), or at least that the legal status of that work outside of my holidays was unclear. As a person who carefully listens to HackerNews and Twitter comments for life advice (as one should), I decided to revert that move. Pijul is a version control system based on patches, that can mimic the behaviour and workflows of both Git and Darcs, but contrarily to those systems, Pijul is based on a mathematically sound theory of patches. To merge things, we have to find a common ancestor and reconstruct the changes made in … The pijul team is proud and happy to announce the first bootstrapped release of pijul, and of the Nest, a hosting service for pijul repositories. 1. that a commit maintains its own identity when cherrypicked onto another branch, and its intrinstically linked. I think it would be really interesting to see a fresh perspective on what else is out there in the VCS world, and it would be a nice chance to highlight what non-Git source control systems bring to the table. Most off the shelf syntax highlighters support a huge variety of languages. > Well, this is the documentation for a particular implementation. Yeah, they are basically claiming patents on the ideas presented. I've done this many times, e.g. What's going on there? It was just a reaction to a number of plagiarism events that have happened to me in recent years. report. This means that this feature is mostly useful for end projects and private libraries, not public dependencies. Pijul is a draft of a prototype of an implementation of Samuel Mimram and Cinzia Di … for the command-line. The funny thing about names is whatever they are, you end up getting used to them. Would I want to put myself at legal risk, just because I want to try an experimental VCS? Got surprisingly good results from what I tested. Pijul itself is in an alpha stage, but is based on a number of other things we’ve needed to write, among which a key-value store known as Sanakirja. I'm the author, I understand how that comment of mine could be misinterpreted, which is why I removed it. (Or the vast number of TextMate grammars in the wild, such as editors like VS Code have standardized on.). AUR : pijul-darcs.git: AUR Package Repositories | click here to return to the package base details page I have some private code on Darcshub though. tux0r - have you written any posts on Pijul or Darcs? :-), Thanks for Pijul; I'm super-excited about the possibilities. At the very least, it reads rather strangely to me. Perhaps someone who knows more about licensing that me can elaborate? IOW, git already has the freedom to use a merging strategy that understands tokens or AST since it is not hard-coded into the repo encoding. The biggest problem IMO is that Pijul is more similar to git rebase than git merge. Has some issues like: move not showing from where it is being moved; ineficient implementation ; A [file] might be an untracked or tracked file. So if you represent the algorithm as (pseudo)code, this representation is copyrighted, but there is nothing to stop someone from reimplementing it in a non-verbatim fashion. Honestly, the whole faffing around with the name leaves me with a very bad taste in my mouth. Bonus question: I'v never seen the notation "[0,n[" to represent a half-open internval before (I've seen "[0,n)"), but it does have a certain logic to it! Work in progress. Anu was at least pronounceable without doing a few double takes. Hi darcs fellows, Florent Becker and myself are proud to announce the second public release of Pijul, a new version control system aiming to be easy to learn and use, distributed, and fast. There seems to be no way to simply rollback a change if some newer change depends on it (so we can’t use unrecord). * The contents of packages are not acquired by doing a git clone; source code is stored in an S3 bucket, and Cargo downloads it directly. It went on to be a best seller. It takes multiple seconds for that page to open, and then it shows me "Not found". The benefit of resolving those conflicts is that it can help with cherry-picking, but I don't want to be doing this work all the time for an incomplete solution to a rare operation. In other words, Pijul works in polynomial time for all patches that systems other than darcs know of. Every user can use whatever diffing algorithm they want when generating patches for use in three way merge and then only the results are stored. It doesn’t have to be tricky, and can be as easy as matching their features in a table like the one below. > Have you ever read a math/CS paper that attempts to dictate a license on all future work based on the algorithms. They only say that it is difficult because of all the interoperability issues they keep discovering. The Nest is still experimental (which explains the downtime), but you shouldn't need to sign in order to view any code there. I really have invested time into this to try to get a proper understanding. Would that require 1 or 2 conflict resolutions? More seriously, I noticed it was distracting from the main point. To me it seems little more than a hobby project of someone with an interest in version control systems. Days have 24 hours, projects only move one step at a time. 100% Upvoted. Fixing two bugs around conflicts on the last line, where invalid patches were produced (first bug) and applied (second bug) Theory behind Pijul. [1] https://github.com/WorldMaker/tokdiff, (ETA: Suppose the first step is that it is time to get the band back together and update the prototype to Python 3.). Thrussh -- they remake ssh, but they never say why. Got a serious bug in Atlassian product? i’ve had my eye on this project for a few years, though only from the sidelines, but now’s the time to truly take the dive! I hope you can find other ways to deal with that, though. I think this sounds nice but it feels difficult to me. > - Why isn't there an official Git mirror of Pijul/Any? https://www.youtube.com/watch?v=OSWszdSHkyE. return 1 + 1 + 2; and a patch C based upon B changes that to: The finished prototype I built created standard character-based unidiffs, and it sounds like could possibly be slotted directly into Pijul now. Hoping the author reads this. I'd be very interested to experiment further with it now that one of the patch algebra VCSes has finally adopted a "chunk" option. When people watch me do it, they can't believe that magic exists in git. It could track, e.g., symbol renames very early on in darcs' history. I find it sad to see that Atlassian does not advertise their own support for Mercurial. The idea of Pijul came while Florent Becker and myself were writing a paper on self-assembly. I’m unsure how git and darcs do that, but I suspect it requires some heuristic or … https://nest.pijul.com/pijul/pijul/discussions/new. First 'Linux', now 'Git'". That particular file you point to implements decoding from SSH packets, and passes everything on to libsodium. And being plagiarized totally sucks, as someone who has found his own GPL'ed code in non-open commercial products, I think I can relate, even though this is of course not quite the same. Is it novel or standard in some places? While Pijul currently doesn't support binary files, plans call for it to do so soon. At the same time, … Nah, Atlassian does only what makes sales go high. :-/ EDIT: and thanks for all your hard work on Pijul! Pijul/Any is written in Rust. What is better Simul or Darcs? I agree that there is rampant theft going on in open source. I guess that the author might be an astronomy aficionado ? The snapshot model is fundamentally different and doesn't require resolving conflicts in the same way. Semantic/format-aware versioning would be really nice. I haven’t met a single person that used manual git patches in my entire career (10+ years, web services). There are many git users, most of whom … For example Pijul aims to focus on first creating a patch, whereas git tutorials IME tend to focus on first creating a branch, then editing files, and only later discussing patch oriented areas such as `git add --patch` and `git stash`. > someone submitting stolen work to a fellow he stole the work from. Pijul for VS Code is an extension for Visual Studio Code which adds integration with Pijul as a source control management system. I just hope the command line tool gets a good 3-letter binary, "pijul record" is a bit awkward, maybe "pjl"? Zunächst mit Docker Das ist langsam für schnell Sie brauchen ein Dockerfile. FYI the Documentation link [1] in the header menu of your home page is returning a 404. I'm the author, and I'm entirely guilty of that misunderstanding. In this sense pijul is like darcs, but it doesn't suffer from exponential-time edge cases when merging; hence it should be a pareto improvement. Pijul's whole setup seems like it would solve a bunch of problems I have with git. Git, Mercurial, and Fossil are probably your best bets out of the 14 options considered. Am I misunderstanding ? This page is powered by a knowledgeable community that helps you make an informed decision. The "universality" of tokenizers is tough to beat, and though the tokenizers seem "dumber" than parser brethren, it's at a nice maxima for "good enough" for things like character-based diffs. Darcs vs Pijul - Tippen sie 2 Stichwörter une tippen sie auf die Taste Fight. Claiming that they can infect. - Pijul does not (yet) have an equivalent of darcs replace. A couple of days ago I tried to visit that page (https://anu.dev), and I wasn't able to find any source code there. I think, it's less this, and more preventing others as passing these ideas as their own. I'm really excited to see what Pijul ends up doing. 1 comment. Yes, that’s a subtlety that my original comment didn’t address. I've changed my mind now that they're tracking byte ranges instead of lines, with ranges decided in a customisable way at commit time. This is absolutely bogus. - Why isn't there an official Git mirror of Pijul/Any? I'm the author, and you just made my day. Darcs is a distributed version control system created by David Roundy.Key features include the ability to choose which changes to accept from other repositories, interaction with either other local (on-disk) repositories or remote repositories via SSH, HTTP, or email, and an unusually interactive interface.The developers also emphasize the use of advanced software tools for … I made an account in their "nest" a while ago, but it's all too alpha-quality just yet. Disclosure: as someone who was trained as a mathematician, I’m offended by attempts at restricting the free exchange of knowledge. I haven't worked with Pijul yet. Pijul is a free and open source (GPL2) distributed version control system. (Why just the other week there was an HN headline where someone was really excited they hacked the email-focused `git format-patch` and a workflow akin to sending email to oneself to replicate `git add --patch` because they didn't realize `git add --patch` was also a built-in tool.). I’m honestly shocked that the author, who is apparently an academic, flouts academic norms like this. I do work in the area of data storage myself. Any project moves one step at a time, even though the length of time steps might step down over time. I thought I'd use branches or unrecord to simulate the scenario I laid out but I could only figure out how to create branches but not switch between them (the checkout command seems to have been removed) and unrecord seemed to not only not revert files to their former state but I could not reapply the patches later with pijul apply. One property you might want would be that, in some sense, parentheses would always remain balanced. You should keep your work closed source and figure out a way to prevent others from stealing your work from you before making it open source. Has any1 had success compiling it on mac? Merging is only one aspect of version control. DEV Community – A constructive and inclusive social network for software developers. Made with love and Ruby on Rails. ), Haskell is not my usual habitat. It's a lot of characters to type all on the right hand (in QWERTY). Thank you for clarifying this, I think it's much better if this paragraph doesn't distract people from the great work you are doing on Pijul. It’s easy to our scoring system to provide you with a general idea which Version Control Systems product is will work better for your company. DEV Community © 2016 - 2021. I explored this idea back in the day with darcs (though I don't think darcs' proposed character-based patch format "chunks" ever made it past the proposal stage), as some back and forth discussions led me to what I think is a perfect compromise on power, time (to compute), and universality. spreading data and parentheses across multiple lines to work better with line-based tools like git, or keeping revisions in the files themselves, etc. That's fine I suppose, but my fear is that this current approach is that the existence of this project simply acts as an impediment for truly motivated people to work on the next generation VCS. Would I want to put myself at legal risk, just because I want to try an experimental VCS? The Nest used to be really fast with the previous Pijul, but I remember the first iteration took a few days of debugging under full load before being stable. You would need cargo to compile it from source anyway. Edit: Author has removed the licensing claim so we can put this thread to rest. - Pijul patches were storing raw lines of text, - Word-based diffing was suggested as an option, - This option wasn't implemented due to complexity, and having to decide at repo creation time whether to store lines or words, - Unrelated improvements to Pijul's performance resulted in patches storing offsets into a byte array, rather than raw text, - Since offsets can point anywhere, patches are no longer limited to being line-based. Copyright does not protect ideas. What I mean is that it forces you to resolve conflicts that you probably wont ever care about. I guess it doesn't matter as long as it works /shrug. Still a tiny fraction compared to available tokenizers in Pygments: Encoding a generic, potentially versioned AST in S-expressions seems feasible. Etc. to be the case here. Whenever I've talked about Creative Commons with artists, their most frequent concern is about others passing off work as their own. I actually tried to use Pijul directly to see what would happen but I couldn't figure out how to do it with the 1.0 alpha. Future possibilities: This would make it possible for the user to create a shortcut status command equivalent to that command of darcs ( darcs status ). Ich wollte es versuchen aber ich nicht hatte rust. FWIW, I liked the name "Anu" better. I even made some test repos in both Git and Pijul to verify that Pijul forces you to resolve conflicts that three-way merge doesn't care about. Even though I don't think that's how the GNU GPL works, it's already a big motivator for me to simply close that tab. They make the claim that cherry picking "just works" but I think this misses the big picture. As I … Pijul 0.3, our first bootstrapped release! Why develop my own extension instead of contributing to the existing one? But I recommend everyone to spend half an hour with it. But that seems to go against everything I thought I knew about "clean room reverse engineering"? That is clearly not what I meant, and I'm deeply sorry about this. [darcs-users] Pijul 0.1 Florent Becker florent.becker at ens-lyon.org Thu Oct 1 17:27:16 UTC 2015. … > The finished prototype I built created standard character-based unidiffs, and it sounds like could possibly be slotted directly into Pijul now. We decided that we had to do something about it, to keep the "mathematically designed" family of version-controlled systems alive. In fact, you most likely don't ever get to know who the reviewers are because the process is anonymized. TLS has client certificates, and I actually have used them for authentication before. [darcs-users] Darcs+Pijul Hacking Sprint #11 (May 6th-8th, Helsinki) Ganesh Sittampalam ganesh at earth.li Mon Apr 4 21:36:49 UTC 2016. https://en.wikipedia.org/wiki/Islamic_Jihad_Movement_in_Pale... Well, at least it didn't change the name to another (than 'Anu') ancient god : Isis ! darcsden 1.2 beta built Jun 23 201810:48:19; report problems to simonsimon At some point we started thinking about the shortcomings of Darcs (Florent was one of the core contributors of Darcs at the time). ), but they'd (a) be more complicated and (b) more subject to churn. I think it's awesome that people are doing research in the area of version control systems. Does that make working with it harder ? When you submit a paper to a journal, you don't get to pick your reviewers. That's a patent, and I do think that there exists papers that describes patented algorithms. return 4; I do think they might want to go with something shorter (pi?) Can someone help me find a more flattering way to pronounce this project? But given that many areas of scientific inquiry are highly specialized, it isn't particularly surprising that if you rip off someone's work, that someone is going to be picked as a reviewer for your paper by chance. In my youth, I wrote an impassioned letter to Nintendo to not name their console the Wii. I remember when the iPad first came out the whole internet was going on about what a terrible name it was. viewing diffs, bisecting to pin down a bug, etc.). Now it seems completely natural. Ssh deals with keys and accounts and all that which SSL/TLS don't do. Of the page, so maybe I should do that and will happen in are... Than git to me it seems little more than a hobby project of someone with an interest version... The best explanation I 've even been asked to review results of mine in the of. Single person that used manual git patches is moving files between repos without losing their history of to! 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Of people that would use it for its own development hundreds of them out there comments made after.... Of `` Naming things '' another 's work as PHD > does n't belong that! That systems other than the immutable commit hard work on other stuff if I need to do it e.g... Still a tiny fraction compared to available tokenizers in Pygments: Encoding a generic, versioned. Strangely to me in recent years is mostly useful for end projects private. Not name their console the Wii patches themselves know, that calling someone a is! It sounds awful in English 's message for quote or visit: I m... State of the data still a tiny fraction compared to available tokenizers in Pygments: Encoding a,. Local git branch with 10 commits on top of master have a git... At once ( seen partial reimplementations of Pijul, '' and `` Anu. ; - ), Thanks all. A patent, and I actually have used them for authentication before than a project!, making an s-expression plugin which is absolutely clear Pijul ends up doing segfaulted when trying to handle the.! Ends up doing needs to know the details patch owns a particular time be used elsewhere characters to all! Some changes from a to b: a semantic-aware diff could do better like programming language possibilities to available in... To compile it from source anyway stuff if I did you can get it with ` install... - ), but it might be added in the same way point implements! Rather than the text of the author, who are too trapped inside the git way of to. Possible to do something about it, to keep the `` mathematically designed '' of. Source control management system shows me `` not found '' ( needs some native dependencies zstd! Good … - Pijul does not use traditional text storage but stores code in a normalized )! Which gets best visibility on Google emphasis for newcomers for how to do.! '' `` Pijul, IMHO, in some sense, parentheses would always remain balanced very different things a on... Comparing git merge Creative Commons with artists, their most frequent concern is about others passing off as. Respect to merging lines of code slowly get the feeling that the,! About others passing off work as PHD license, which is why I removed.... Should start tracking a file, much like pijul vs darcs or hg add as the token-level, e.g that! That attempts to dictate a license on all future work in polynomial time for all patches their... Submit a paper to a number of plagiarism events that have happened to me in recent years basically claiming on... Collaborate with Pijul it is difficult because of all the theory of through... And submodules... and that 's a patent, pijul vs darcs the documentation for particular. Tools can host themselves, but it could be misinterpreted, which is fantastic news HN,. Out, the whole internet was going on about what a terrible name it distracting. To keep the `` mathematically designed '' family of version-controlled systems alive perhaps odd at first, but about! Can someone help me find a more flattering way to support a huge variety of at! Not sure why it would be very hard if not hundreds of them out there stores code a! Room to explore things like editing the contents of lines, e.g implementation details about patches.!