amaharaneko/guix-mirrors
1
1
Fork 0
mirror of https://codeberg.org/guix/guix.git synced 2025-10-02 02:15:12 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

gnu: home: dotfiles: Properly support both plain and Stow directory layouts.

Browse source 
Fixes <https://issues.guix.gnu.org/68848>.

The current implementation of the home-dotfiles-service-type contradicts
the Guix manual.  This patch properly implements both the plain and Stow
dotfiles directory layouts.

It does so by refactoring home-dotfiles-configuration adding a new
packages field to support GNU Stow's users workflow and introducing
a new layout field to switch between the two directory layouts.

* gnu/home/services/dotfiles (home-dotfiles-configuration): Migrate to
(gnu services configuration);
[packages]: new field;
[layout]: new field;
(strip-stow-dotfile): new variable;
(strip-plain-dotfile): new variable;
(home-dotfiles-configuration->files): use the new fields;
[directory-contents]: allow for
selecting a subset of application dotfile directories;
* doc/guix.texi: document the new layouts.

Change-Id: I2e96037608353e360828290f055ec5271cfdfd48
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Giacomo Leidi 2024-03-06 21:52:42 +01:00 • committed by Ludovic Courtès
parent 9e3061a163
commit 01f685d560
No known key found for this signature in database
GPG key ID: 090B11993D9AEBB5
2 changed files with 150 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

113
gnu/home/services/dotfiles.scm
View file

@ -20,17 +20,25 @@
(define-module (gnu home services dotfiles)
#:use-module (gnu home services)
#:use-module (gnu services)
#:use-module (gnu services configuration)
#:autoload (guix build utils) (find-files)
#:use-module (guix diagnostics)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module (guix i18n)
#:use-module ((guix utils) #:select (current-source-directory))
#:use-module (srfi srfi-1)
#:use-module (ice-9 ftw)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:export (home-dotfiles-service-type
home-dotfiles-configuration->files
home-dotfiles-configuration
home-dotfiles-configuration?
home-dotfiles-configuration-fields
home-dotfiles-configuration-layout
home-dotfiles-configuration-source-directory
home-dotfiles-configuration-packages
home-dotfiles-configuration-directories
home-dotfiles-configuration-excluded))
@ -40,26 +48,64 @@
"\\.git"
"\\.gitignore"))
(define-record-type* <home-dotfiles-configuration>
home-dotfiles-configuration make-home-dotfiles-configuration
home-dotfiles-configuration?
(source-directory home-dotfiles-configuration-source-directory
(default (current-source-directory))
(innate))
(directories home-dotfiles-configuration-directories ;list of strings
(default '()))
(excluded home-dotfiles-configuration-excluded ;list of strings
(default %home-dotfiles-excluded)))
(define %home-dotfiles-layouts
'(plain stow))
(define (import-dotfiles directory files)
(define (sanitize-layout value)
(if (member value %home-dotfiles-layouts)
value
(raise
(formatted-message
(G_ "layout field of home-dotfiles-configuration should be either 'plain
or 'stow, but ~a was found.")
value))))
(define list-of-strings?
(list-of string?))
(define-maybe list-of-strings)
(define-configuration/no-serialization home-dotfiles-configuration
(source-directory
(string (current-source-directory))
"The path where dotfile directories are resolved. By default dotfile
directories are resolved relative the source location where
@code{home-dotfiles-configuration} appears.")
(layout
(symbol 'plain)
"The intended layout of the specified @code{directory}. It can be either
@code{'stow} or @code{'plain}."
(sanitizer sanitize-layout))
(directories
(list-of-strings '())
"The list of dotfiles directories where @code{home-dotfiles-service-type}
will look for application dotfiles.")
(packages
(maybe-list-of-strings)
"The names of a subset of the GNU Stow package layer directories. When provided
the @code{home-dotfiles-service-type} will only provision dotfiles from this
subset of applications. This field will be ignored if @code{layout} is set
to @code{'plain}.")
(excluded
(list-of-strings %home-dotfiles-excluded)
"The list of file patterns @code{home-dotfiles-service-type} will exclude
while visiting @code{directory}."))
(define (strip-stow-dotfile file-name directory)
(let ((dotfile-name (string-drop file-name (1+ (string-length directory)))))
(match (string-split dotfile-name #\/)
((package parts ...)
(string-join parts "/")))))
(define (strip-plain-dotfile file-name directory)
(string-drop file-name (+ 1 (string-length directory))))
(define (import-dotfiles directory files strip)
"Return a list of objects compatible with @code{home-files-service-type}'s
value. Each object is a pair where the first element is the relative path
of a file and the second is a gexp representing the file content. Objects are
generated by recursively visiting DIRECTORY and mapping its contents to the
user's home directory, excluding files that match any of the patterns in EXCLUDED."
(define (strip file)
(string-drop file (+ 1 (string-length directory))))
(define (format file)
;; Remove from FILE characters that cannot be used in the store.
(string-append
@ -73,7 +119,7 @@ user's home directory, excluding files that match any of the patterns in EXCLUDE
file)))
(map (lambda (file)
(let ((stripped (strip file)))
(let ((stripped (strip file directory)))
(list stripped
(local-file file (format stripped)
#:recursive? #t))))
@ -81,18 +127,25 @@ user's home directory, excluding files that match any of the patterns in EXCLUDE
(define (home-dotfiles-configuration->files config)
"Return a list of objects compatible with @code{home-files-service-type}'s
value, generated following GNU Stow's algorithm for each of the
directories in CONFIG, excluding files that match any of the patterns configured."
value, excluding files that match any of the patterns configured."
(define stow? (eq? (home-dotfiles-configuration-layout config) 'stow))
(define excluded
(home-dotfiles-configuration-excluded config))
(define exclusion-rx
(make-regexp (string-append "^.*(" (string-join excluded "|") ")$")))
(define (directory-contents directory)
(find-files directory
(lambda (file stat)
(not (regexp-exec exclusion-rx
(basename file))))))
(define* (directory-contents directory #:key (packages #f))
(define (filter-files directory)
(find-files directory
(lambda (file stat)
(not (regexp-exec exclusion-rx
(basename file))))))
(if (and stow? packages (maybe-value-set? packages))
(append-map filter-files
(map (lambda (pkg)
(string-append directory "/" pkg))
packages))
(filter-files directory)))
(define (resolve directory)
;; Resolve DIRECTORY relative to the 'source-directory' field of CONFIG.
@ -103,15 +156,23 @@ directories in CONFIG, excluding files that match any of the patterns configured
(append-map (lambda (directory)
(let* ((directory (resolve directory))
(contents (directory-contents directory)))
(import-dotfiles directory contents)))
(packages
(home-dotfiles-configuration-packages config))
(contents
(directory-contents directory
#:packages packages))
(strip
(if stow? strip-stow-dotfile strip-plain-dotfile)))
(import-dotfiles directory contents strip)))
(home-dotfiles-configuration-directories config)))
(define-public home-dotfiles-service-type
(service-type (name 'home-dotfiles)
(extensions
(list (service-extension home-files-service-type
home-dotfiles-configuration->files)))
(lambda (config)
(when config
(home-dotfiles-configuration->files config))))))
(default-value (home-dotfiles-configuration))
(description "Files that will be put in the user's home directory
following GNU Stow's algorithm, and further processed during activation.")))