GNU bug report logs - #51460
emacs-magit: path error during commit

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Package: guix; Reported by: Christopher Howard <christopher@HIDDEN>; dated Thu, 28 Oct 2021 14:25:01 UTC; Maintainer for guix is bug-guix@HIDDEN.

Message received at 51460 <at> debbugs.gnu.org:


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From: Kyle Meyer <kyle@HIDDEN>
To: Christopher Howard <christopher@HIDDEN>
Subject: Re: bug#51460: emacs-magit: path error during commit
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Date: Sat, 26 Feb 2022 17:54:29 -0500
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Hello,

I came across this bug report when searching for something else.  In
case it helps...

Christopher Howard writes:

> Hello, for a long time I've struggled with getting a path error when I
> try to do a commit using emacs-magit. Here is an example log copied from
> the magit-process buffer:
>
> ```
>   0 git =E2=80=A6 add -u -- Genesis/gen_1.org
>   1 git =E2=80=A6 commit --
> hint: Waiting for your editor to close the file...
> Waiting for Emacs...
> *ERROR*: Searching for program: No such file or directory, git
> error: There was a problem with the editor
> '/gnu/store/dpky3z5844bclhswdk69z90vayy65b58-emacs-27.2/bin/emacsclient
> --socket-name=3D/run/user/1000/emacs/server'.
> Please supply the message using either -m or -F option.
> ```

In Magit v3.3.0 and earlier, this error matches what you would see if
"git" isn't in $PATH for the editor that pops up.  This is true even
when magit-git-executable points to an executable.

In the development version of Magit, this should no longer happen as of
77255776 (git-commit: Use magit-git-executable function if available,
2022-02-21).  The issue that prompted that is
<https://github.com/magit/with-editor/issues/106>.  (I know that below
you say you don't use GitHub, but for others that may find that useful.)

(Based on what you say below, it sounds like "git" should be in $PATH,
so things aren't quite adding up still.)

> I find this confusing because
> - I can use magit to stage my commits
> - In the Magit Group (M-x customize-group magit), the Magit Git
> Executable is set to /home/christopher/.guix-profile/bin/git, and that
> file does exist in my profile.
> - /gnu/store/dpky3z5844bclhswdk69z90vayy65b58-emacs-27.2/bin/emacsclient=
=20
> also does exist

Yes, staging and most of things in Magit respect magit-git-executable.
As I mention above and you suspect in the quoted text below, that value
wasn't consulted by the code path relevant for the error above (in
git-commit.el).

> - Within emacs, I can run the shell command M-! git commit or M-! git
> commit -m "..." and this works fine.

Hmm, so your main Emacs session has "git" on its exec-path.  Perhaps
there's something going on with the with-editor launched editor.  I'd
suggest looking at with-editor-debug and seeing if
/home/christopher/.guix-profile/bin is in the path it reports.

> I suspect that emacs-magit might not be properly using the Magit Git
> Executable path for this action, but haven't had a chance to look at the
> source code yet.

Yep, that's it, and, as I mentioned above, should be fixed by 77255776
(git-commit: Use magit-git-executable function if available,
2022-02-21).




Information forwarded to bug-guix@HIDDEN:
bug#51460; Package guix. Full text available.

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Message-ID: <068232bf9c2157d6b8636615b361398cac4470c1.camel@HIDDEN>
Subject: emacs-magit: path error during commit
From: Christopher Howard <christopher@HIDDEN>
To: Guix Bug Reports <bug-guix@HIDDEN>
Date: Thu, 28 Oct 2021 06:24:30 -0800
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Hello, for a long time I've struggled with getting a path error when I
try to do a commit using emacs-magit. Here is an example log copied from
the magit-process buffer:

```
  0 git … add -u -- Genesis/gen_1.org
  1 git … commit --
hint: Waiting for your editor to close the file...
Waiting for Emacs...
*ERROR*: Searching for program: No such file or directory, git
error: There was a problem with the editor
'/gnu/store/dpky3z5844bclhswdk69z90vayy65b58-emacs-27.2/bin/emacsclient
--socket-name=/run/user/1000/emacs/server'.
Please supply the message using either -m or -F option.
```

I find this confusing because
- I can use magit to stage my commits
- In the Magit Group (M-x customize-group magit), the Magit Git
Executable is set to /home/christopher/.guix-profile/bin/git, and that
file does exist in my profile.
- /gnu/store/dpky3z5844bclhswdk69z90vayy65b58-emacs-27.2/bin/emacsclient 
also does exist
- Within emacs, I can run the shell command M-! git commit or M-! git
commit -m "..." and this works fine.

I suspect that emacs-magit might not be properly using the Magit Git
Executable path for this action, but haven't had a chance to look at the
source code yet. Probably this should be submitted as an issue or
support request to emacs-magit, but I have not done so since (on
principle) I do not have a github account, or use google groups.

Here is my system information;

```
christopher@nightshade ~$ neofetch --stdout
christopher@nightshade 
---------------------- 
OS: Guix System 9aaf402a379b9ac9e4c3eee5b16f7496d7606e91 x86_64 
Host: GA-880GM-UD2H 
Kernel: 5.14.9-gnu 
Uptime: 1 hour, 20 mins 
Packages: 61 (guix-system), 155 (guix-user) 
Shell: bash 5.0.16 
Resolution: 1920x1200 
DE: GNOME 3.34.5 
Theme: Adwaita [GTK2/3] 
Icons: Adwaita [GTK2/3] 
Terminal: .gnome-terminal 
CPU: AMD Athlon II X3 455 (3) @ 3.300GHz 
GPU: NVIDIA GeForce 8400 GS Rev. 3 
Memory: 1338MiB / 7893MiB 
```

-- 
Christopher Howard
Gemini capsule: gemini://gem.librehacker.com
Web version: https://portal.mozz.us/gemini/gem.librehacker.com






Acknowledgement sent to Christopher Howard <christopher@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#51460; Package guix. Full text available.
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