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guix/gnu/home/services/shells.scm
Ludovic Courtès 7d9fdfb19d
home: services: bash: Properly quote shell aliases. 
Fixes <https://issues.guix.gnu.org/63048>.
Reported by Ekaitz Zarraga <ekaitz@elenq.tech>.

* gnu/home/services.scm (with-shell-quotation-bindings): New procedure.
(environment-variable-shell-definitions): Use it instead of inline copy.
* gnu/home/services/shells.scm (bash-serialize-aliases): Use it.  Add
clause for 'literal-string?'.
* tests/guix-home.sh: Add 'aliases' to 'home-bash-extension' and test it.
2023-07-11 15:47:56 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
;;; Copyright © 2023 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu home services shells)
#:use-module (gnu services configuration)
#:autoload (gnu system shadow) (%default-bashrc)
#:use-module (gnu home services utils)
#:use-module (gnu home services)
#:use-module (gnu packages shells)
#:use-module (gnu packages bash)
#:use-module (guix gexp)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (ice-9 match)
#:export (home-shell-profile-service-type
home-shell-profile-configuration
home-bash-service-type
home-bash-configuration
home-bash-extension
home-zsh-service-type
home-zsh-configuration
home-zsh-extension
home-fish-service-type
home-fish-configuration
home-fish-extension
home-inputrc-service-type
home-inputrc-configuration))
;;; Commentary:
;;;
;;; This module contains shell related services like Zsh.
;;;
;;; Code:
;;;
;;; Shell profile.
;;;
(define path? string?)
(define (serialize-path field-name val) val)
(define-configuration home-shell-profile-configuration
(profile
(text-config '())
"\
@code{home-shell-profile} is instantiated automatically by
@code{home-environment}, DO NOT create this service manually, it can
only be extended.
@code{profile} is a list of file-like objects, which will go to
@file{~/.profile}. By default @file{~/.profile} contains the
initialization code, which have to be evaluated by login shell to make
home-environment's profile available to the user, but other commands
can be added to the file if it is really necessary.
In most cases shell's configuration files are preferred places for
user's customizations. Extend home-shell-profile service only if you
really know what you do."))
(define (add-shell-profile-file config)
`((".profile"
,(mixed-text-file
"shell-profile"
"\
HOME_ENVIRONMENT=$HOME/.guix-home
. $HOME_ENVIRONMENT/setup-environment
$HOME_ENVIRONMENT/on-first-login\n"
(serialize-configuration
config
(filter-configuration-fields
home-shell-profile-configuration-fields '(profile)))))))
(define (add-profile-extensions config extensions)
(home-shell-profile-configuration
(inherit config)
(profile
(append (home-shell-profile-configuration-profile config)
extensions))))
(define home-shell-profile-service-type
(service-type (name 'home-shell-profile)
(extensions
(list (service-extension
home-files-service-type
add-shell-profile-file)))
(compose concatenate)
(extend add-profile-extensions)
(default-value (home-shell-profile-configuration))
(description "Create @file{~/.profile}, which is used
for environment initialization of POSIX compliant login shells. This
service type can be extended with a list of file-like objects.")))
(define (serialize-boolean field-name val) "")
(define (serialize-posix-env-vars field-name val)
(environment-variable-shell-definitions val))
;;;
;;; Zsh.
;;;
(define-configuration home-zsh-configuration
(package
(package zsh)
"The Zsh package to use.")
(xdg-flavor?
(boolean #t)
"Place all the configs to @file{$XDG_CONFIG_HOME/zsh}. Makes
@file{~/.zshenv} to set @env{ZDOTDIR} to @file{$XDG_CONFIG_HOME/zsh}.
Shell startup process will continue with
@file{$XDG_CONFIG_HOME/zsh/.zshenv}.")
(environment-variables
(alist '())
"Association list of environment variables to set for the Zsh session."
(serializer serialize-posix-env-vars))
(zshenv
(text-config '())
"List of file-like objects, which will be added to @file{.zshenv}.
Used for setting user's shell environment variables. Must not contain
commands assuming the presence of tty or producing output. Will be
read always. Will be read before any other file in @env{ZDOTDIR}.")
(zprofile
(text-config '())
"List of file-like objects, which will be added to @file{.zprofile}.
Used for executing user's commands at start of login shell (In most
cases the shell started on tty just after login). Will be read before
@file{.zlogin}.")
(zshrc
(text-config '())
"List of file-like objects, which will be added to @file{.zshrc}.
Used for executing user's commands at start of interactive shell (The
shell for interactive usage started by typing @code{zsh} or by
terminal app or any other program).")
(zlogin
(text-config '())
"List of file-like objects, which will be added to @file{.zlogin}.
Used for executing user's commands at the end of starting process of
login shell.")
(zlogout
(text-config '())
"List of file-like objects, which will be added to @file{.zlogout}.
Used for executing user's commands at the exit of login shell. It
won't be read in some cases (if the shell terminates by exec'ing
another process for example)."))
(define (zsh-filter-fields field)
(filter-configuration-fields home-zsh-configuration-fields (list field)))
(define (zsh-serialize-field config field)
(serialize-configuration config (zsh-filter-fields field)))
(define* (zsh-field-not-empty? config field)
(let ((file-name (symbol->string field))
(field-obj (car (zsh-filter-fields field))))
(not (null? ((configuration-field-getter field-obj) config)))))
(define (zsh-file-zshenv config)
(mixed-text-file
"zshenv"
(zsh-serialize-field config 'zshenv)
(zsh-serialize-field config 'environment-variables)))
(define (zsh-file-zprofile config)
(mixed-text-file
"zprofile"
"\
# Set up the system, user profile, and related variables.
source /etc/profile
# Set up the home environment profile.
source ~/.profile
# It's only necessary if zsh is a login shell, otherwise profiles will
# be already sourced by bash
"
(zsh-serialize-field config 'zprofile)))
(define (zsh-file-by-field config field)
(match field
('zshenv (zsh-file-zshenv config))
('zprofile (zsh-file-zprofile config))
(e (mixed-text-file
(symbol->string field)
(zsh-serialize-field config field)))))
(define (zsh-get-configuration-files config)
`((".zprofile" ,(zsh-file-by-field config 'zprofile)) ;; Always non-empty
,@(if (or (zsh-field-not-empty? config 'zshenv)
(zsh-field-not-empty? config 'environment-variables))
`((".zshenv" ,(zsh-file-by-field config 'zshenv))) '())
,@(if (zsh-field-not-empty? config 'zshrc)
`((".zshrc" ,(zsh-file-by-field config 'zshrc))) '())
,@(if (zsh-field-not-empty? config 'zlogin)
`((".zlogin" ,(zsh-file-by-field config 'zlogin))) '())
,@(if (zsh-field-not-empty? config 'zlogout)
`((".zlogout" ,(zsh-file-by-field config 'zlogout))) '())))
(define (add-zsh-dot-configuration config)
(define zshenv-auxiliary-file
(mixed-text-file
"zshenv-auxiliary"
"export ZDOTDIR=${XDG_CONFIG_HOME:-$HOME/.config}/zsh\n"
"[[ -f $ZDOTDIR/.zshenv ]] && source $ZDOTDIR/.zshenv\n"))
(if (home-zsh-configuration-xdg-flavor? config)
`((".zshenv" ,zshenv-auxiliary-file))
(zsh-get-configuration-files config)))
(define (add-zsh-xdg-configuration config)
(if (home-zsh-configuration-xdg-flavor? config)
(map
(lambda (lst)
(cons (string-append "zsh/" (car lst))
(cdr lst)))
(zsh-get-configuration-files config))
'()))
(define (add-zsh-packages config)
(list (home-zsh-configuration-package config)))
(define-configuration/no-serialization home-zsh-extension
(environment-variables
(alist '())
"Association list of environment variables to set.")
(zshrc
(text-config '())
"List of file-like objects.")
(zshenv
(text-config '())
"List of file-like objects.")
(zprofile
(text-config '())
"List of file-like objects.")
(zlogin
(text-config '())
"List of file-like objects.")
(zlogout
(text-config '())
"List of file-like objects."))
(define (home-zsh-extensions original-config extension-configs)
(home-zsh-configuration
(inherit original-config)
(environment-variables
(append (home-zsh-configuration-environment-variables original-config)
(append-map
home-zsh-extension-environment-variables extension-configs)))
(zshrc
(append (home-zsh-configuration-zshrc original-config)
(append-map
home-zsh-extension-zshrc extension-configs)))
(zshenv
(append (home-zsh-configuration-zshenv original-config)
(append-map
home-zsh-extension-zshenv extension-configs)))
(zprofile
(append (home-zsh-configuration-zprofile original-config)
(append-map
home-zsh-extension-zprofile extension-configs)))
(zlogin
(append (home-zsh-configuration-zlogin original-config)
(append-map
home-zsh-extension-zlogin extension-configs)))
(zlogout
(append (home-zsh-configuration-zlogout original-config)
(append-map
home-zsh-extension-zlogout extension-configs)))))
(define home-zsh-service-type
(service-type (name 'home-zsh)
(extensions
(list (service-extension
home-files-service-type
add-zsh-dot-configuration)
(service-extension
home-xdg-configuration-files-service-type
add-zsh-xdg-configuration)
(service-extension
home-profile-service-type
add-zsh-packages)))
(compose identity)
(extend home-zsh-extensions)
(default-value (home-zsh-configuration))
(description "Install and configure Zsh.")))
;;;
;;; Bash.
;;;
(define (bash-serialize-aliases field-name val)
(with-shell-quotation-bindings
#~(string-append
#$@(map
(match-lambda
((key . #f)
"")
((key . #t)
#~(string-append "alias " #$key "\n"))
((key . (? literal-string? value))
#~(string-append "alias " #$key "="
(shell-single-quote
#$(literal-string-value value))
"\n"))
((key . value)
#~(string-append "alias " #$key "="
(shell-double-quote #$value)
"\n")))
val))))
(define-configuration home-bash-configuration
(package
(package bash)
"The Bash package to use.")
(guix-defaults?
(boolean #t)
"Add sane defaults like reading @file{/etc/bashrc} and coloring the output of
@command{ls} to the top of the @file{.bashrc} file.")
(environment-variables
(alist '())
"Association list of environment variables to set for the Bash session. The
rules for the @code{home-environment-variables-service-type} apply
here (@pxref{Essential Home Services}). The contents of this field will be
added after the contents of the @code{bash-profile} field."
(serializer serialize-posix-env-vars))
(aliases
(alist '())
"Association list of aliases to set for the Bash session. The aliases will be
defined after the contents of the @code{bashrc} field has been put in the
@file{.bashrc} file. The alias will automatically be quoted, so something line
this:
@lisp
'((\"ls\" . \"ls -alF\"))
@end lisp
turns into
@example
alias ls=\"ls -alF\"
@end example"
(serializer bash-serialize-aliases))
(bash-profile
(text-config '())
"List of file-like objects, which will be added to @file{.bash_profile}.
Used for executing user's commands at start of login shell (In most
cases the shell started on tty just after login). @file{.bash_login}
won't be ever read, because @file{.bash_profile} always present.")
(bashrc
(text-config '())
"List of file-like objects, which will be added to @file{.bashrc}.
Used for executing user's commands at start of interactive shell (The
shell for interactive usage started by typing @code{bash} or by
terminal app or any other program).")
(bash-logout
(text-config '())
"List of file-like objects, which will be added to @file{.bash_logout}.
Used for executing user's commands at the exit of login shell. It
won't be read in some cases (if the shell terminates by exec'ing
another process for example)."))
(define (add-bash-configuration config)
(define (filter-fields field)
(filter-configuration-fields home-bash-configuration-fields
(list field)))
(define (serialize-field field)
(serialize-configuration
config
(filter-fields field)))
(define* (file-if-not-empty field #:optional (extra-content #f))
(let ((file-name (symbol->string field))
(field-obj (car (filter-fields field))))
(if (or extra-content
(not (null? ((configuration-field-getter field-obj) config))))
`(,(string-append "." (object->snake-case-string file-name))
,(apply mixed-text-file
(object->snake-case-string file-name)
(append (or extra-content '())
(list (serialize-field field)))))
'())))
(filter
(compose not null?)
`((".bash_profile"
,(mixed-text-file
"bash_profile"
"\
# Set up the system, user profile, and related variables.
# /etc/profile will be sourced by bash automatically
# Set up the home environment profile.
if [ -f ~/.profile ]; then source ~/.profile; fi
# Honor per-interactive-shell startup file
if [ -f ~/.bashrc ]; then source ~/.bashrc; fi
"
;; The host distro might provide a bad 'PS1' default--e.g., not taking
;; $GUIX_ENVIRONMENT into account. Provide a good default here when
;; asked to. The default can be overridden below via
;; 'environment-variables'.
(if (home-bash-configuration-guix-defaults? config)
"PS1='\\u@\\h \\w${GUIX_ENVIRONMENT:+ [env]}\\$ '\n"
"")
(serialize-field 'bash-profile)
(serialize-field 'environment-variables)))
,@(list (file-if-not-empty
'bashrc
(if (home-bash-configuration-guix-defaults? config)
(list (serialize-field 'aliases)
(plain-file-content %default-bashrc))
(list (serialize-field 'aliases))))
(file-if-not-empty 'bash-logout)))))
(define (add-bash-packages config)
(list (home-bash-configuration-package config)))
(define-configuration/no-serialization home-bash-extension
(environment-variables
(alist '())
"Additional environment variables to set. These will be combined with the
environment variables from other extensions and the base service to form one
coherent block of environment variables.")
(aliases
(alist '())
"Additional aliases to set. These will be combined with the aliases from
other extensions and the base service.")
(bash-profile
(text-config '())
"Additional text blocks to add to @file{.bash_profile}, which will be combined
with text blocks from other extensions and the base service.")
(bashrc
(text-config '())
"Additional text blocks to add to @file{.bashrc}, which will be combined
with text blocks from other extensions and the base service.")
(bash-logout
(text-config '())
"Additional text blocks to add to @file{.bash_logout}, which will be combined
with text blocks from other extensions and the base service."))
(define (home-bash-extensions original-config extension-configs)
(match-record original-config <home-bash-configuration>
(environment-variables aliases bash-profile bashrc bash-logout)
(home-bash-configuration
(inherit original-config)
(environment-variables
(append environment-variables
(append-map
home-bash-extension-environment-variables extension-configs)))
(aliases
(append aliases
(append-map
home-bash-extension-aliases extension-configs)))
(bash-profile
(append bash-profile
(append-map
home-bash-extension-bash-profile extension-configs)))
(bashrc
(append bashrc
(append-map
home-bash-extension-bashrc extension-configs)))
(bash-logout
(append bash-logout
(append-map
home-bash-extension-bash-logout extension-configs))))))
(define home-bash-service-type
(service-type (name 'home-bash)
(extensions
(list (service-extension
home-files-service-type
add-bash-configuration)
(service-extension
home-profile-service-type
add-bash-packages)))
(compose identity)
(extend home-bash-extensions)
(default-value (home-bash-configuration))
(description "Install and configure GNU Bash.")))
;;;
;;; Fish.
;;;
(define (serialize-fish-aliases field-name val)
#~(string-append
#$@(map (match-lambda
((key . value)
#~(string-append "alias " #$key " \"" #$value "\"\n"))
(_ ""))
val)))
(define (serialize-fish-abbreviations field-name val)
#~(string-append
#$@(map (match-lambda
((key . value)
#~(string-append "abbr --add " #$key " " #$value "\n"))
(_ ""))
val)))
(define (serialize-fish-env-vars field-name val)
#~(string-append
#$@(map (match-lambda
((key . #f)
"")
((key . #t)
#~(string-append "set -x " #$key "\n"))
((key . value)
#~(string-append "set -x " #$key " " #$value "\n")))
val)))
(define-configuration home-fish-configuration
(package
(package fish)
"The Fish package to use.")
(config
(text-config '())
"List of file-like objects, which will be added to
@file{$XDG_CONFIG_HOME/fish/config.fish}.")
(environment-variables
(alist '())
"Association list of environment variables to set in Fish."
(serializer serialize-fish-env-vars))
(aliases
(alist '())
"Association list of aliases for Fish, both the key and the value
should be a string. An alias is just a simple function that wraps a
command, If you want something more akin to @dfn{aliases} in POSIX
shells, see the @code{abbreviations} field."
(serializer serialize-fish-aliases))
(abbreviations
(alist '())
"Association list of abbreviations for Fish. These are words that,
when typed in the shell, will automatically expand to the full text."
(serializer serialize-fish-abbreviations)))
(define (fish-files-service config)
`(("fish/config.fish"
,(mixed-text-file
"fish-config.fish"
#~(string-append "\
# if we haven't sourced the login config, do it
status --is-login; and not set -q __fish_login_config_sourced
and begin
set --prepend fish_function_path "
#$fish-foreign-env
"/share/fish/functions
fenv source $HOME/.profile
set -e fish_function_path[1]
set -g __fish_login_config_sourced 1
end\n\n")
(serialize-configuration
config
home-fish-configuration-fields)))))
(define (fish-profile-service config)
(list (home-fish-configuration-package config)))
(define-configuration/no-serialization home-fish-extension
(config
(text-config '())
"List of file-like objects for extending the Fish initialization file.")
(environment-variables
(alist '())
"Association list of environment variables to set.")
(aliases
(alist '())
"Association list of Fish aliases.")
(abbreviations
(alist '())
"Association list of Fish abbreviations."))
(define (home-fish-extensions original-config extension-configs)
(home-fish-configuration
(inherit original-config)
(config
(append (home-fish-configuration-config original-config)
(append-map
home-fish-extension-config extension-configs)))
(environment-variables
(append (home-fish-configuration-environment-variables original-config)
(append-map
home-fish-extension-environment-variables extension-configs)))
(aliases
(append (home-fish-configuration-aliases original-config)
(append-map
home-fish-extension-aliases extension-configs)))
(abbreviations
(append (home-fish-configuration-abbreviations original-config)
(append-map
home-fish-extension-abbreviations extension-configs)))))
;; TODO: Support for generating completion files
;; TODO: Support for installing plugins
(define home-fish-service-type
(service-type (name 'home-fish)
(extensions
(list (service-extension
home-xdg-configuration-files-service-type
fish-files-service)
(service-extension
home-profile-service-type
fish-profile-service)))
(compose identity)
(extend home-fish-extensions)
(default-value (home-fish-configuration))
(description "\
Install and configure Fish, the friendly interactive shell.")))
;;;
;;; Readline.
;;;
(define (serialize-inputrc-key-bindings field-name val)
#~(string-append
#$@(map
(match-lambda
((key . value)
#~(string-append #$key ": " #$value "\n")))
val)))
(define (serialize-inputrc-variables field-name val)
#~(string-append
#$@(map
(match-lambda
((key . #f)
#~(string-append "set " #$key " off\n"))
((key . #t)
#~(string-append "set " #$key " on\n"))
((key . value)
#~(string-append "set " #$key " " #$value "\n")))
val)))
(define (serialize-inputrc-conditional-constructs field-name val)
#~(string-append
#$@(map
(match-lambda
(("$endif" . _)
"$endif\n")
(("$include" . value)
#~(string-append "$include " #$value "\n"))
;; TODO: key can only be "$if" or "$else".
((key . value)
#~(string-append #$key "\n"
#$(serialize-configuration
value
home-inputrc-configuration-fields))))
val)))
(define (serialize-inputrc-extra-content field-name value)
#~(if (string=? #$value "") "" (string-append #$value "\n")))
(define-configuration home-inputrc-configuration
(key-bindings
(alist '())
"Association list of readline key bindings to be added to the
@code{~/.inputrc} file. This is where code like this:
@lisp
'((\"Control-l\" . \"clear-screen\"))
@end lisp
turns into
@example
Control-l: clear-screen
@end example"
(serializer serialize-inputrc-key-bindings))
(variables
(alist '())
"Association list of readline variables to set. This is where configuration
options like this:
@lisp
'((\"bell-style\" . \"visible\")
(\"colored-completion-prefix\" . #t))
@end lisp
turns into
@example
set bell-style visible
set colored-completion-prefix on
@end example"
(serializer serialize-inputrc-variables))
(conditional-constructs
(alist '())
"Association list of conditionals to add to the initialization file. This
includes @command{$if}, @command{else}, @command{endif} and @command{include}
and they receive a value of another @command{home-inputrc-configuration}.
@lisp
(conditional-constructs
`((\"$if mode=vi\" .
,(home-inputrc-configuration
(variables
`((\"show-mode-in-prompt\" . #t)))))
(\"$else\" .
,(home-inputrc-configuration
(key-bindings
`((\"Control-l\" . \"clear-screen\")))))
(\"$endif\" . #t)))
@end lisp
turns into
@example
$if mode=vi
set show-mode-in-prompt on
$else
Control-l: clear-screen
$endif
@end example"
(serializer serialize-inputrc-conditional-constructs))
(extra-content
(string "")
"Extra content appended as-is to the configuration file. Run @command{man
readline} for more information about all the configuration options."
(serializer serialize-inputrc-extra-content)))
(define (home-inputrc-files config)
(list
`(".inputrc"
,(mixed-text-file "inputrc"
(serialize-configuration
config
home-inputrc-configuration-fields)))))
(define home-inputrc-service-type
(service-type (name 'inputrc)
(extensions
(list (service-extension home-files-service-type
home-inputrc-files)))
(default-value (home-inputrc-configuration))
(description "Configure readline in @code{.inputrc}.")))
(define (generate-home-shell-profile-documentation)
(generate-documentation
`((home-shell-profile-configuration
,home-shell-profile-configuration-fields))
'home-shell-profile-configuration))
(define (generate-home-bash-documentation)
(string-append
(generate-documentation
`((home-bash-configuration
,home-bash-configuration-fields))
'home-bash-configuration)
"\n\n"
(generate-documentation
`((home-bash-extension
,home-bash-extension-fields))
'home-bash-extension)))
(define (generate-home-zsh-documentation)
(generate-documentation
`((home-zsh-configuration
,home-zsh-configuration-fields))
'home-zsh-configuration))
(define (generate-home-fish-documentation)
(string-append
(generate-documentation
`((home-fish-configuration
,home-fish-configuration-fields))
'home-fish-configuration)
"\n\n"
(generate-documentation
`((home-fish-extension
,home-fish-extension-fields))
'home-fish-extension)))
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