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(define-module (oni home services git)
#:use-module ((gnu home services)
#:select (service-type
service-extension
home-profile-service-type
home-xdg-configuration-files-service-type))
#:use-module ((gnu packages version-control)
#:select (git))
#:use-module ((gnu services configuration)
#:select (serialize-package
define-configuration
define-maybe
serialize-text-config
serialize-configuration
configuration-field-name))
#:use-module ((guix packages)
#:select (package?))
#:use-module ((guix gexp)
#:select (mixed-text-file))
#:export (home-git-service-type
home-git-configuration))
(define (pascal-case str delim)
(let ((parts (string-split str delim)))
(string-join (cons (car parts)
(map string-capitalize (cdr parts)))
"")))
(define-maybe string)
(define (serialize-string field value)
(let* ((field-name (symbol->string field))
(name (pascal-case (substring field-name (1+ (string-index field-name #\-))) #\-)))
(format #f "~a=~a~%" name value)))
(define-configuration home-git-configuration
(package
(package git)
"Package to use for setting git.")
(user-name
(string "")
"Name of the user to specify.")
(user-email
(string "")
"Email of the user to specify.")
(sendemail-sendmailcmd
maybe-string
"Command to use to send email.")
(init-default-branchname
maybe-string
"Default name for new branches.")
(init-default-branch
maybe-string
"Default branch.")
(extra
maybe-string
"Any extra configuration."))
(define (add-git-packages config)
(list (home-git-configuration-package config)))
(define (add-git-config-files config)
(let ((filter-prefix
(λ (p l)
(filter (λ (f) (string-prefix? p (symbol->string (configuration-field-name f)))) l))))
`(("git/config"
,(mixed-text-file
"config"
"[user]\n"
(serialize-configuration config (filter-prefix "user-" home-git-configuration-fields))
"[sendemail]\n"
(serialize-configuration config (filter-prefix "sendemail-" home-git-configuration-fields))
"[init]\n"
(serialize-configuration config (filter-prefix "init-" home-git-configuration-fields))
(home-git-configuration-extra config))))))
(define home-git-service-type
(service-type
(name 'home-git)
(extensions
(list (service-extension
home-profile-service-type
add-git-packages)
(service-extension
home-xdg-configuration-files-service-type
add-git-config-files)))
(compose identity)
(default-value (home-git-configuration))
(description "Install and configure git.")))
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