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Re: [ANN] Emacs-Guix 0.3.4
From: |
Oleg Pykhalov |
Subject: |
Re: [ANN] Emacs-Guix 0.3.4 |
Date: |
Fri, 29 Dec 2017 20:44:11 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) |
Hello Alex, Guix
Alex Kost <address@hidden> writes:
> Hello, Emacs-Guix (Emacs interface for GNU Guix) version 0.3.4 has been
> released. It may be installed with "guix package -i emacs-guix".
>
> The main new features are:
By the way, 'guix-edit' supports a new behavior:
Read symbol at point and if it is a package name, return it. If it
is not a package name or if current command has a prefix argument,
read the name from minibuffer.
(from 'guix-read-package-name-at-point' documentation string).
To set it up you need the following in your '.emacs':
(setq guix-read-package-name-function
#'guix-read-package-name-at-point)
> 1. "M-x guix-hash": it prompts for a file, calculates its hash and puts
> it into kill-ring (i.e., you can insert it with "C-y"). If it is
> called on a directory, it ignores VCS files (like "guix hash
> --recursive --exclude-vcs"). Also it supports dired-mode. Thanks to
> ng0 for the idea of this command!
I like this, but as I undertand it works only with files or directories
locally. Could we do something like:
(defun guix-download (url)
(interactive "sDownload URL: ")
(insert (shell-command-to-string (concat "guix download "
url
" 2>/dev/null"
"| tail -n 1"
"| tr -d '\n'"))))
which will download a thing and paste a hash at the cursor position.
We have a 'guix-devel-download-package-source', but it basically the
same as a shell command 'guix download PACKAGE' which requires to copy
hash manually. What we probably want is to get a hash into Emacs
kill-ring as guix-hash does.
> 2. "M-x guix-derivation-mode": this major mode makes Guix derivations
> more human readable by indenting them and by making buttons from the
> store file names. It is enabled automatically in "/gnu/store/….drv"
> files. Many thanks to Oleg Pykhalov for inventing and implementing
> this feature!
Thank you for leading and improvements after, too!
[...]
> Happy Guix Year :-)
Happy New Year!
Oleg.
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