Rebasing in Magit
Posted by ibobev 11 hours ago
Comments
Comment by mschulze 11 hours ago
Especially for rebasing, subset rebases (using --onto, see https://git-scm.com/book/en/v2/Git-Branching-Rebasing#_more_...) are a breeze with Magit. I can't remember the order of branches to use on the CLI, in Magit it's just "r s" basically. It's really magic.
Comment by lambda 11 hours ago
Unfortunately, for most people the fact that it's part of Emacs is a blocker.
And because most people use worse Git tools, they tend to use workflows that are easier with more cumbersome tools; generally just committing all kinds of junk commits to a branch, and using the "squash and merge" feature of GitHub or GitLab to clean everything in a PR/MR up into a single commit.
So yeah, it's sad that people don't use Git to its full potential because almost no other Git interface works as well, and most people aren't going to learn Emacs just for a Git UI.
Comment by w4rh4wk5 10 hours ago
Comment by zelphirkalt 9 hours ago
Comment by MobileVet 3 hours ago
Comment by moritzwarhier 6 hours ago
Only exception is resolving conflicts.
The most important point for every gut IDE integration to me is that it cleanly maps to the file system and CLI state.
Comment by mr_mitm 6 hours ago
Comment by stackbutterflow 6 hours ago
Comment by kirici 3 hours ago
Comment by throw-the-towel 3 hours ago
Comment by saila 9 hours ago
The kind of person who would try a tool like Magit and use it to discover git would have found a different route if Magit didn't exist. The type of person who doesn't care isn't going to learn something just because a tool is available.
Comment by hrmtst93837 5 hours ago
Comment by znpy 8 hours ago
OT but i've learned the hard way not to push people into emacs.
a few years ago i made the very stupid mistake of pushing some colleague to trying/learning emacs and then i found myself having to explain the same person everything as well as fix his elisp code from his ~/.emacs .
Reality is, i didn't want to have that role and that colleague wasn't interested in gnu emacs in the first place.
That was a very stupid mistake on my side.
Nowadays i just say things like "yeah it's magit, an emacs plugin" or "ah yeah, it's nice because you spend some time learning it and then you can bring it over from company to company, no licenses involved or other annoyances".
Some people are intrigued, most other absolutely aren't... And it's fine.
Comment by kqr 8 hours ago
Comment by tsimionescu 6 hours ago
And I'm saying this as someone who has exclusively programmed in Emacs with Magit for the last 5 years in my job.
Comment by kqr 3 hours ago
What makes you say that?
> what do you mean "save is C-x C-s?" what does that even mean?
Magit never asks you to C-x C-s save anything. Magit has its own independent set of discoverable keybinds.
Comment by steve1977 7 hours ago
Comment by worik 6 hours ago
Only in the past years have I started customizing it
My attraction to Emacs is stability and I can use it in text or GUI mode.
Many editors have come and gone in that time, many employers insist I use this or that piece of over designed, under done GUI. When I have the chance, back to Emacs
Comment by badsectoracula 5 hours ago
But it isn't graphical :-P.
Personally i've been often looking for an opensource Git GUI front end but couldn't find anything i'd like. My points of reference of decent tools -ignoring the underlying tech- are Perforce and TortoiseSVN under Windows and Fuel[0] (for Fossil) and KDESVN under Linux.
Perforce and Fuel are the two i like the most, followed by KDESVN and Tortoise. But since i'm on Linux and i stick with opensource projects, Perforce and Tortoise are out, leaving me with Fuel and KDESVN. I'm using KDESVN for a few projects where i don't care about external collaboration and want to store many binary files (which Subversion does it better that Git IMO), though KDESVN is very primitive and limited in what it supports (it doesn't support shelving at all, for example - in fact for anything beyond commit and checking the history you probably need to use the cli tool). I do not use Fossil much nowadays but i used it a lot in the past so i have a bunch of repositories in it, for which i use Fuel. Fuel is unfortunately not being developed anymore, though since it is opensource it doesn't matter much (which is a reason why i ignore anything non-opensource, i know there are some decent proprietary Git clients but for me they might as well not exist).
I think at some point i'll grab libgit2 and make something using Lazarus, probably something similar to Fuel. Unlike libsvn, which seems to be made in hell, libgit2 seems very sane and shouldn't be terribly hard to make something usable out of it.
In the meanwhile i use a combination of git cola, gitgui and gitk though they all feel like a hodgepodge of barely thought random features thrown in together (and i hate that they all want to impose their own idea of how i should format a message -especially git cola- which of course aren't identical between of them and aren't even close how i'd like to format the messages myself).
Comment by imiric 9 hours ago
Maybe it's due to muscle memory from my CLI Git setup (nothing special, just some aliases, scmpuff, delta, etc.), or Magit forcing you into its own quirky UI, but it never clicked for me. For 99% of things I use Git for, I don't have any issues with my workflow, nor wish to improve it. For the other (very) rare occasions, I can always ask an LLM to help me figure out the right command.
This is also why I don't see any value in Jujutsu either, or any of the GUI/TUI wrappers. The Git CLI porcelain with some minor customizations just hasn't been a problem I need solving.
Comment by publicdebates 8 hours ago
Comment by troupo 11 hours ago
Magit is not even close to be on the same level.
Any insane operation you want at your fingertips.
Comment by jbstack 10 hours ago
Comment by ileonichwiesz 6 hours ago
Comment by troupo 3 hours ago
In most IDEs I feel that Git integration is an awkward badly integrated afterthought. They are also very much tied to the whatever IDE offers them in terms of available shortcuts, layouts, controls etc. (this applies to Magit, too).
Some of my idiosyncratic usage I developed with GitUp doesn't even exist in most (all?) Git tools: https://news.ycombinator.com/item?id=47329489 (see my most common workflow)
Comment by MainlyMortal 9 hours ago
Comment by znpy 8 hours ago
So the software is mac-only, you haven't used a mac in over 20 years so you haven't used this software and yet... you claim it's better than magit?
i mean, it's very dishonest at best.
Comment by BeetleB 7 hours ago
Not what he said. You misparsed.
Comment by troupo 8 hours ago
Comment by lambda 7 hours ago
But none of them that I've tried have ever come close to the workflow.
I can stage and unstage individual hunks, do complex interactive rebases, squash commits, break apart commits, etc. much faster in Magit than I can in other Git GUIs.
Maybe you're hung up on the "G" part; perhaps I should have just said "UI" rather than "GUI".
So no, I haven't tried that one because it's Mac only, but I'm not really seeing from the screen recordings the kind of workflow that I find so powerful in Magit.
Comment by troupo 3 hours ago
I can do all that pretty fast in GitUp, too. Since most of the commands there have quick keyboard shortcuts.
My most common workflow besides staging anything is (to make sure history is clean):
- split up a commit (add/remove files or hunks if the commit contains stuff that should go into another commit) - move new commit up/down the branch (doesn't require interactive rebase in GitUp) - squash up/down
(undo/redo from time to time)
As far as I understand, Magit doesn't offer anything in that regard except the good old interactive rebase [1]. In GitUp moving commits is (u)p/(d)own and (s)quash with parent
> Maybe you're hung up on the "G" part; perhaps I should have just said "UI" rather than "GUI".
The distinction doesn't matter. The keyword in both GUI and UI is User. As a user I found GitUp to be a much better tool than Magit. Though Magit does probably allow for more very advanced usage most people don't do. [2]
However, actual useful usage like I described above? Ooh boy, no one does it except GitUp for some reason.
[1] I only have this blog post to confirm https://www.howardism.org/Technical/Emacs/magit-squashing.ht...
[2] There's another downside to GitUp: it's very slow on repos with huge histories. Probably due to the git library it's using.
Comment by masklinn 11 hours ago
My primary reason for using it is reviewing and staging commits. The non-linear staging with line granularity (which also lets you revert changes at the same time) is so, so very good when you care about crafting commits.
Comment by mschulze 10 hours ago
Comment by taude 10 hours ago
Comment by ziml77 1 hour ago
Comment by jwr 9 hours ago
Most people think it's "just another interface on top of git" — without several in-depth examples it's difficult to realize that it actually allows you to complete really complex tasks quickly. I've seen this superficial take many times.
Comment by sureglymop 8 hours ago
The exception is maybe diffing, where I just use meld as the difftool.
Comment by zelphirkalt 9 hours ago
Comment by e40 4 hours ago
Comment by jayd16 11 hours ago
Comment by mschulze 10 hours ago
I would single out the following for Magit:
1. Single key strokes for actions and toggles 2. Discoverability through "slide-ins" (TFA also explains this)
For 2, this means I press "c" for commit, this opens a popup showing me the next keypresses and what they do. So I can build up muscle memory for commands I know that are fast due to 1, and I can discover options that might help me due to 2.
If I don't know what to do at all, there's Ctrl+c, Ctrl+c to discover "entry-points" for Magit shortcuts.
Comment by zelphirkalt 9 hours ago
Comment by erksa 11 hours ago
Comment by Perz1val 6 hours ago
Comment by jonpalmisc 11 hours ago
Native-comp was a good step forward, but Emacs is still so much slower than Neovim, even in the case of launching and immediately quitting, with no config:
$ time emacs -Q -e kill-emacs
/Applications/Emacs.app/Contents/MacOS/Emacs -nw -Q -e kill-emacs 0.18s user 0.03s system 98% cpu 0.213 total
$ time nvim -es --cmd 'vim.cmd("q")'
nvim -es --cmd 'vim.cmd("q")' 0.02s user 0.01s system 82% cpu 0.034 total
Even with a very minimal set of packages, text insertion, etc. is slower, and opening Magit (when it hasn't been loaded yet) takes about a second due to slow package loading.Emacs is my favorite editor, full stop.
But every time I open Neovim or Sublime for quick tasks, it's always painfully apparent how much faster they are when I CMD+Tab back to Emacs.
Comment by zelphirkalt 9 hours ago
Comment by truncate 4 hours ago
I love Emacs, but it really just fails to be effective for me when I work on monorepos and even more so, when I'm on tramp.
Comment by zelphirkalt 35 minutes ago
I think the current solutions for running things in separate threads are only for external tools. I guess to do more, a kind of protocol would need to be invented, that tells a process exactly what parts of the copied global state it may change and when it finishes, only those parts will be merged back into the main process' global state.
Maybe I understood things wrong and things are different than I understood them to be. I am not an Emacs core developer. Just a user, who watched a few videos.
Tramp can be sped up a bit. I remember seeing some blog posts about it. I guess if you need to go via more than 1 hop, it can get slow though.
What is the problem with mono repos?
Comment by Ferret7446 6 hours ago
So the miniscule increase in start time is a non issue
Comment by ishouldbework 10 hours ago
Comment by jonpalmisc 10 hours ago
Either way, this only addresses startup time too. The rest of the issues: text insertion lag, `project-find-file` being slow in large repos, etc. all remain.
Comment by chriswarbo 9 hours ago
As someone who mostly lives in Emacs, I like it. If I'm away from a machine, I can SSH into it and carry on with whatever I was in the middle of.
It's also nice to set emacsclient as EDITOR, so that e.g. running `git commit` will open up a buffer in the existing Emacs session. This is especially useful since I use shell-mode, and it would be confusing/weird to have new Emacs instances popping up when I'm already in an editor! (They open in a "window" (i.e. pane) in the existing "frame" (i.e. window) instead)
Comment by finaard 7 hours ago
But I typically start emacs at boot, and then it runs until I reboot. I usually have one GUI frame, and one tui frame running in tmux so I can easily attach to my emacs session from a different computer. I have an emacsclient wrapper that opens stuff from the command line in my running emacs (and also mail wrappers, so clicking on a mail link in a browser opens a mail compositor in emacs).
I'm using eyebrowse with a bunch of own convenience features for workspaces in emacs - stuff like "when I switch to a buffer it'll switch to the workspace wher e that buffer is open unless I tell it I want it here". Combine that with some custom SSH entry points and especially on the notebook where I only have one screen it's way more comfortable to use than the OS window management for a terminal/ssh session messy like me.
Comment by ragall 9 hours ago
There's no reason why it shouldn't. You seem to think that the interface obliges a program into a certain performance pattern. No such obligation exists. And Emacs isn't a TUI program, it only happens to have a terminal interface among many others.
Comment by jonpalmisc 9 hours ago
I think all software (or at least, any text editor) regardless of interface type should launch instantly. But it's more unjustifiable with TUI programs.
Comment by ragall 6 hours ago
Comment by qubidt 4 hours ago
Comment by dietr1ch 10 hours ago
Yeah, it feels a bit weird to not have some isolation.
Spacemacs offers layouts[^1] that give you some buffer-isolation. Each window has a "layout", and layouts have sets of buffers. It works well, but you can run into extra prompts if you open the same buffer from two layouts and try to kill it from one of them (kill the buffer (for all layouts)? just remove from this layout? In my mind the latter should just be the default).
[^1]: https://www.spacemacs.org/doc/DOCUMENTATION.html#layouts-and...
Comment by precompute 9 hours ago
Anyway, you can start N emacs instances and they can all have individual buffer states.
Emacs is not primarily a TUI program (although it does have a TUI with the -nw). The TUI version of emacs lacks visual customizability and introduces unnecessary overhead (terminal!). Use the GUI.
Text insertion lag is something I haven't experienced since 2019. Config issue?
project-find-file might be slow because of low gc-cons-threshold. I know consult gets around this by temporarily raising the threshold. These days, you can use the feature/igc branch to make these operations faster (although they are pretty fast anyway).
If you think emacs lacks <fundamental feature X>, think again!
Comment by MereInterest 6 hours ago
Can you elaborate on this? I tend to use emacs exclusively in the terminal, since I'm often using them on remote workstations. For remote workstations, I can (a) open files using TRAMP, (b) open a remote GUI with X11 forwarding over SSH, or (c) open a remote TUI. TRAMP doesn't always play nicely with LSP servers, and remote TUIs are much, much more responsive than X11 forwarding.
Locally, the performance of emacs depends far more on the packages I load than on the GUI vs TUI, so I'm interested in hearing what overhead there would be.
Comment by precompute 3 hours ago
For me, TUI is a dealbreaker because:
- No mixed-pitch support: I use mixed-pitch fonts in org-mode buffers and in outline faces in prog-mode buffers. And fonts are just plain nicer on the GUI, and it's much better to look at.
- No SVG support: (I might be wrong about this) I have a custom modeline with SVG artifacts and the artifacts fail silently on the TUI
- Keybind conflicts: I am not used to accounting for the terminal's keybinds. Also, I use xfce4-terminal, which does not support the Hyper modifier (which I use extensively).
Comment by smitty1e 9 hours ago
Maybe, but I'd like to hear why you think this is such an antifeature for a single-threaded application.
Given the extra resources available these days, for example, why not just bring up a stand-alone ERC instance for chatting, if shared state is a concern?
Comment by chriswarbo 9 hours ago
For me, the best performance improvement has been handling long lines; e.g. Emacs used to become unusable if it was given a line of around 1MB. Since I run lots of shell-mode buffers, that would happen frustratingly-often. My workaround was to make my default shell a script that pipes `bash` through a pared-down, zero-allocation copy of GNU `fold`, to force a newline after hitting a certain length (crossing a lower threshold would break at the next whitespace; hitting an upper threshold would force a break immediately). That piping caused Bash to think it wasn't interactive, which required another work-around using Expect.
Thankfully the last few versions of Emacs have fixed long-line handling enough for me to get rid of my awful Rube-Goldberg shell!
Comment by spudlyo 9 hours ago
$ gtime /opt/homebrew/bin/emacs --batch --eval '(princ (format "%s\n" emacs-version))'
30.2
0.07user 0.03system 0:00.13elapsed 78%CPU (0avgtext+0avgdata 46064maxresident)k
$ /usr/bin/time ~/bin/emacs --batch -eval '(princ (format "%s\n" emacs-version))'
30.2
0.02user 0.01system 0:00.04elapsed 95%CPU (0avgtext+0avgdata 57728maxresident)kComment by frantathefranta 8 hours ago
Comment by spudlyo 8 hours ago
Comment by dietr1ch 10 hours ago
I agree, but there's ways around it. On my machine the Emacs daemon is ready before I even log-in (lingering [^0]).
I think I only restart the daemon when I update emacs and its packages, and yeah, Emacs and Spacemacs are slow, but do not slow me down.
[^0]: https://wiki.archlinux.org/title/Systemd/User#Automatic_star...
Comment by Joe_Cool 9 hours ago
On my old Ryzen 3600X running Arch it's a lot faster. Does the UI eat so much performance on OSX?
$ time emacs -Q -e kill-emacs
real 0m0.076s
user 0m0.058s
sys 0m0.018s
$ time nvim -es --cmd 'vim.cmd("q")'
real 0m0.028s
user 0m0.005s
sys 0m0.003s
vim still is a lot faster though.Comment by znpy 8 hours ago
> vim still is a lot faster though.
you might want to make sure you're comparing apples to apples though. the "emacs" command most likely is going to load the GUI emacs so a lot of gui libraries (if you're running a recent emacs then even GTK libraries) whereas the nvim command isn't going to load gui libraries at all.
maybe try with a non-gui version of emacs (or maybe calling emacs -nw)
Comment by Joe_Cool 8 hours ago
Comment by codygman 7 hours ago
$ time nvim -es --cmd 'vim.cmd("q")'
real 0m0.057s
user 0m0.016s
sys 0m0.017s
$ time emacs -Q -e kill-emacs
real 0m0.230s
user 0m0.165s
sys 0m0.064s
$ time emacs -nw -Q -e kill-emacs
real 0m0.095s
user 0m0.057s
sys 0m0.017sComment by Joe_Cool 7 hours ago
Tried it anyways, looks the same:
$ time emacs -nw -Q -e kill-emacs
real 0m0.075s
user 0m0.062s
sys 0m0.013sComment by Joe_Cool 4 hours ago
Comment by ahoka 10 hours ago
Altough I'm not using Emacs.app.
Comment by jonpalmisc 10 hours ago
Comment by weaksauce 6 hours ago
Comment by 8s2ngy 10 hours ago
Comment by umanwizard 9 hours ago
Comment by BigTTYGothGF 9 hours ago
Not for the parts of it I use.
Comment by precompute 9 hours ago
Like what? Emacs is written in C and there are ports of it out there (all half-abandoned). Emacs, the way it exists, works very well.
Comment by umanwizard 9 hours ago
Comment by BigTTYGothGF 9 hours ago
Comment by precompute 9 hours ago
I practically live in Emacs and it's not slow at all. It's very zippy, and my setup isn't the lightest!
There's a new branch (feature/igc) with incremental garbage collection (via MPS) that makes routine actions faster. I've been using it and it has been incredibly stable and has completely eliminated stutters (which used to happen very infrequently, but were present). Also, to me, it seems like it improves latency. The cursor feels more responsive.
Comment by chriswarbo 10 hours ago
I finally gave it a try when I came across the majutsu package, which is a magit-like interface for jujutsu. I recommend it for Emacs/magit users wanting to try `jj`!
Comment by tcoff91 9 hours ago
Comment by baq 8 hours ago
Comment by Zambyte 7 hours ago
If that's the case, it also seems like you can do jj duplicate and repeat -o if you just want to create a branch to temporarily test against another branch and main.
Comment by baq 6 hours ago
Comment by i_dursun 4 hours ago
Comment by BeetleB 7 hours ago
Comment by chriswarbo 7 hours ago
A couple of things I tend to notice:
- In magit, I can run a raw git shell commands by pressing `:`; majutsu doesn't seem to have that, so I use Emacs ordinary `M-!`
- The default view in majutsu (log) isn't as slick as magit's. With magit, I'll routinely open it up to look at the repo status, browse through the diffs (expanding/collapsing), staging/unstaging, etc. With majutsu, most of that requires first opening up the log, then opening up the diff of a commit.
- Staging/unstaging in magit is quite nice. The analogous workflow in jj seems to be splitting/squashing, but that feels clunkier in majutsu.
I've not opened bugs or PRs for these things, since it's mostly vibes and I don't have actual solutions to offer ;-)
EDIT: Oh, I also remembered that `jj` ignores $PAGER and uses its own built-in paging by default. That tries to act like `less`, and doesn't work well in Emacs. It can't use env vars either, unless we set its pager to something like `sh -c "$PAGER"` (see https://docs.jj-vcs.dev/latest/config/#pager ). Since my $PAGER is always `cat`, I've just set that as jj's pager directly too.
Comment by jwr 9 hours ago
This lets you add a single-line change to a commit way back somewhere in the log.
Comment by aardvark179 3 hours ago
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Comment by ashton314 10 hours ago
;; Speed up magit status by removing some things
(remove-hook 'magit-status-sections-hook 'magit-insert-tags-header)
(remove-hook 'magit-status-sections-hook 'magit-insert-status-headers)
(remove-hook 'magit-status-sections-hook 'magit-insert-unpushed-to-pushremote)
(remove-hook 'magit-status-sections-hook 'magit-insert-unpulled-from-pushremote)
(remove-hook 'magit-status-sections-hook 'magit-insert-unpulled-from-upstream)
(remove-hook 'magit-status-sections-hook 'magit-insert-unpushed-to-upstream-or-recent)Comment by BeetleB 7 hours ago
As a sibling said, you can disable much of that.
Comment by codingcareer 11 hours ago
Over the years I opted to substitute most tools with simpler, UI-based ones (like LogSeq for org-mode) but I never found a good substitution for Magit.
Having a whole spacemacs setup just for one tool is a bit overkill though, so I just use basic git and accept having to deal with interactive rebases manually.
Comment by vvillena 9 hours ago
Comment by jwr 9 hours ago
I would encourage anyone who relies on magit to sponsor tarsius to make his fantastic work sustainable.
Comment by antonyh 11 hours ago
Comment by nopurpose 11 hours ago
Comment by skrebbel 10 hours ago
"It's super easy! Just do l-Akqr␍=u2025-06-01␍-s--tests␍b!"
Comment by PaulDavisThe1st 10 hours ago
> That looks complicated, but remember how we built it: we looked at the hints and selected one option at a time. Now, if this is a log type we’ll use often, we are going to start to be able to write out that incantation without even looking at the hints. It’s both discoverable and efficient.
Comment by akagr 8 hours ago
Magit surfaces all available commands and options for you, along with key shortcuts as well as the actual git cli counterparts if you want to learn the raw command, too.
Comment by txru 9 hours ago
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Comment by skydhash 11 hours ago
A patch is an idea, not some snapshot of time. git allows for ideas manipulation. The rebase operation is adjusting ideas to fit a context. And with the reflog (which tracks every operations), you have undo for ideas manipulation.
Comment by sandinmyjoints 11 hours ago
Comment by gnuduncan 11 hours ago