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@ -8,7 +8,7 @@
@copying @copying
@quotation @quotation
Copyright (C) 2012-2022 John Wiegley <johnw@@newartisans.com> Copyright (C) 2012-2022 Free Software Foundation, Inc.
You can redistribute this document and/or modify it under the terms You can redistribute this document and/or modify it under the terms
of the GNU General Public License as published by the Free Software of the GNU General Public License as published by the Free Software
@ -31,7 +31,7 @@ General Public License for more details.
@finalout @finalout
@titlepage @titlepage
@title use-package User Manual @title use-package User Manual
@subtitle for version 2.4.1-81-gb185c6b+1 @subtitle for version 2.4.1-119-g0be480e+1
@author John Wiegley @author John Wiegley
@page @page
@vskip 0pt plus 1filll @vskip 0pt plus 1filll
@ -45,9 +45,9 @@ General Public License for more details.
@top use-package User Manual @top use-package User Manual
The @code{use-package} macro allows you to isolate package configuration in your The @code{use-package} macro allows you to isolate package configuration in your
@code{.emacs} file in a way that is both performance-oriented and, well, tidy. I @code{.emacs} file in a way that is both performance-oriented and, well, tidy. I
created it because I have over 80 packages that I use in Emacs, and things created it because I have over 80 packages that I use in Emacs, and things
were getting difficult to manage. Yet with this utility my total load time is were getting difficult to manage. Yet with this utility my total load time is
around 2 seconds, with no loss of functionality! around 2 seconds, with no loss of functionality!
@insertcopying @insertcopying
@ -73,27 +73,27 @@ Installation
Keywords Keywords
* @code{after}:: * @code{after}:: @code{:after}.
* @code{bind-keymap}, @code{bind-keymap*}: @code{bind-keymap} @code{bind-keymap*}. * @code{bind-keymap} @code{bind-keymap*}:: @code{:bind-keymap}, @code{:bind-keymap*}.
* @code{bind}, @code{bind*}: @code{bind} @code{bind*}. * @code{bind} @code{bind*}:: @code{:bind}, @code{:bind*}.
* @code{commands}:: * @code{commands}:: @code{:commands}.
* @code{preface}, @code{init}, @code{config}: @code{preface} @code{init} @code{config}. * @code{preface} @code{init} @code{config}:: @code{:preface}, @code{:init}, @code{:config}.
* @code{custom}:: * @code{custom}:: @code{:custom}.
* @code{custom-face}:: * @code{custom-face}:: @code{:custom-face}.
* @code{defer}, @code{demand}: @code{defer} @code{demand}. * @code{defer} @code{demand}:: @code{:defer}, @code{:demand}.
* @code{defines}, @code{functions}: @code{defines} @code{functions}. * @code{defines} @code{functions}:: @code{:defines}, @code{:functions}.
* @code{diminish}, @code{delight}: @code{diminish} @code{delight}. * @code{diminish} @code{delight}:: @code{:diminish}, @code{:delight}.
* @code{disabled}:: * @code{disabled}:: @code{:disabled}.
* @code{ensure}, @code{pin}: @code{ensure} @code{pin}. * @code{ensure} @code{pin}:: @code{:ensure}, @code{:pin}.
* @code{hook}:: * @code{hook}:: @code{:hook}.
* @code{if}, @code{when}, @code{unless}: @code{if} @code{when} @code{unless}. * @code{if} @code{when} @code{unless}:: @code{:if}, @code{:when}, @code{:unless}.
* @code{load-path}:: * @code{load-path}:: @code{:load-path}.
* @code{mode}, @code{interpreter}: @code{mode} @code{interpreter}. * @code{mode} @code{interpreter}:: @code{:mode}, @code{:interpreter}.
* @code{magic}, @code{magic-fallback}: @code{magic} @code{magic-fallback}. * @code{magic} @code{magic-fallback}:: @code{:magic}, @code{:magic-fallback}.
* @code{no-require}:: * @code{no-require}:: @code{:no-require}.
* @code{requires}:: * @code{requires}:: @code{:requires}.
@code{:bind}, @code{:bind*} @code{bind}, @code{bind*}
* Binding to local keymaps:: * Binding to local keymaps::
@ -105,9 +105,9 @@ Keywords
@chapter Introduction @chapter Introduction
The @code{use-package} macro allows you to isolate package configuration in your The @code{use-package} macro allows you to isolate package configuration in your
@code{.emacs} file in a way that is both performance-oriented and, well, tidy. I @code{.emacs} file in a way that is both performance-oriented and, well, tidy. I
created it because I have over 80 packages that I use in Emacs, and things created it because I have over 80 packages that I use in Emacs, and things
were getting difficult to manage. Yet with this utility my total load time is were getting difficult to manage. Yet with this utility my total load time is
around 2 seconds, with no loss of functionality! around 2 seconds, with no loss of functionality!
More text to come@dots{} More text to come@dots{}
@ -127,10 +127,10 @@ its development repository.
@node Installing from GNU ELPA @node Installing from GNU ELPA
@section Installing from GNU ELPA @section Installing from GNU ELPA
use-package is available from GNU ELPA. If you haven't used Emacs' use-package is available from GNU ELPA. If you haven't used
package manager before, then it is high time you familiarize yourself Emacs' package manager before, then it is high time you familiarize yourself
with it by reading the documentation in the Emacs manual, see with it by reading the documentation in the Emacs manual, see
@ref{Packages,,,emacs,}. @ref{Packages,,,emacs,}. Then add one of the archives to @code{package-archives}:
First, you need to update the local package list using: First, you need to update the local package list using:
@ -206,7 +206,7 @@ Now see @ref{Post-Installation Tasks}.
@section Post-Installation Tasks @section Post-Installation Tasks
After installing use-package you should verify that you are indeed using the After installing use-package you should verify that you are indeed using the
use-package release you think you are using. It's best to restart Emacs before use-package release you think you are using. It's best to restart Emacs before
doing so, to make sure you are not using an outdated value for @code{load-path}. doing so, to make sure you are not using an outdated value for @code{load-path}.
@example @example
@ -216,7 +216,7 @@ C-h v use-package-version RET
should display something like should display something like
@example @example
use-package-version’s value is "2.4.1" use-package-version’s value is "2.4.3"
@end example @end example
If you are completely new to use-package then see @ref{Getting Started}. If you are completely new to use-package then see @ref{Getting Started}.
@ -226,13 +226,13 @@ If you run into problems, then please see the @ref{Debugging Tools}.
@node Getting Started @node Getting Started
@chapter Getting Started @chapter Getting Started
TODO@. For now, see @code{README.md}. TODO@. For now, see @code{README.md}.
@node Basic Concepts @node Basic Concepts
@chapter Basic Concepts @chapter Basic Concepts
@code{use-package} was created for few basic reasons, each of which drove the @code{use-package} was created for few basic reasons, each of which drove the
design in various ways. Understanding these reasons may help make some of design in various ways. Understanding these reasons may help make some of
those decisions clearer: those decisions clearer:
@itemize @itemize
@ -256,7 +256,7 @@ close to a functional Emacs as possible.
@item @item
To allow byte-compilation of one's init file so that any warnings or To allow byte-compilation of one's init file so that any warnings or
errors seen are meaningful. In this way, even if byte-compilation is not errors seen are meaningful. In this way, even if byte-compilation is not
used for speed (reason 3), it can still be used as a sanity check. used for speed (reason 3), it can still be used as a sanity check.
@end itemize @end itemize
@ -267,25 +267,25 @@ used for speed (reason 3), it can still be used as a sanity check.
@chapter Keywords @chapter Keywords
@menu @menu
* @code{after}:: * @code{after}:: @code{after}.
* @code{bind-keymap}, @code{bind-keymap*}: @code{bind-keymap} @code{bind-keymap*}. * @code{bind-keymap} @code{bind-keymap*}:: @code{:bind-keymap}, @code{:bind-keymap*}.
* @code{bind}, @code{bind*}: @code{bind} @code{bind*}. * @code{bind} @code{bind*}:: @code{bind} @code{:bind*}.
* @code{commands}:: * @code{commands}:: @code{:commands}.
* @code{preface}, @code{init}, @code{config}: @code{preface} @code{init} @code{config}. * @code{preface} @code{init} @code{config}:: @code{:preface}, @code{:init}, @code{:config}.
* @code{custom}:: * @code{custom}:: @code{:custom}.
* @code{custom-face}:: * @code{custom-face}:: @code{:custom-face}.
* @code{defer}, @code{demand}: @code{defer} @code{demand}. * @code{defer} @code{demand}:: @code{:defer}, @code{:demand}.
* @code{defines}, @code{functions}: @code{defines} @code{functions}. * @code{defines} @code{functions}:: @code{:defines}, @code{:functions}.
* @code{diminish}, @code{delight}: @code{diminish} @code{delight}. * @code{diminish} @code{delight}:: @code{:diminish}, @code{:delight}.
* @code{disabled}:: * @code{disabled}:: @code{:disabled}.
* @code{ensure}, @code{pin}: @code{ensure} @code{pin}. * @code{ensure} @code{pin}:: @code{:ensure}, @code{:pin}.
* @code{hook}:: * @code{hook}:: @code{:hook}.
* @code{if}, @code{when}, @code{unless}: @code{if} @code{when} @code{unless}. * @code{if} @code{when} @code{unless}:: @code{:if}, @code{:when}, @code{:unless}.
* @code{load-path}:: * @code{load-path}:: @code{:load-path}.
* @code{mode}, @code{interpreter}: @code{mode} @code{interpreter}. * @code{mode} @code{interpreter}:: @code{:mode}, @code{:interpreter}.
* @code{magic}, @code{magic-fallback}: @code{magic} @code{magic-fallback}. * @code{magic} @code{magic-fallback}:: @code{:magic}, @code{:magic-fallback}.
* @code{no-require}:: * @code{no-require}:: @code{:no-require}.
* @code{requires}:: * @code{requires}:: @code{:requires}.
@end menu @end menu
@node @code{after} @node @code{after}
@ -293,8 +293,8 @@ used for speed (reason 3), it can still be used as a sanity check.
Sometimes it only makes sense to configure a package after another has been Sometimes it only makes sense to configure a package after another has been
loaded, because certain variables or functions are not in scope until that loaded, because certain variables or functions are not in scope until that
time. This can achieved using an @code{:after} keyword that allows a fairly rich time. This can achieved using an @code{:after} keyword that allows a fairly rich
description of the exact conditions when loading should occur. Here is an description of the exact conditions when loading should occur. Here is an
example: example:
@lisp @lisp
@ -309,13 +309,13 @@ example:
@end lisp @end lisp
In this case, because all of these packages are demand-loaded in the order In this case, because all of these packages are demand-loaded in the order
they occur, the use of @code{:after} is not strictly necessary. By using it, they occur, the use of @code{:after} is not strictly necessary. By using it,
however, the above code becomes order-independent, without an implicit however, the above code becomes order-independent, without an implicit
depedence on the nature of your init file. depedence on the nature of your init file.
By default, @code{:after (foo bar)} is the same as @code{:after (:all foo bar)}, meaning By default, @code{:after (foo bar)} is the same as @code{:after (:all foo bar)}, meaning
that loading of the given package will not happen until both @code{foo} and @code{bar} that loading of the given package will not happen until both @code{foo} and @code{bar}
have been loaded. Here are some of the other possibilities: have been loaded. Here are some of the other possibilities:
@lisp @lisp
:after (foo bar) :after (foo bar)
@ -331,7 +331,7 @@ been loaded, or both @code{baz} and @code{quux} have been loaded.
@strong{NOTE}: Pay attention if you set @code{use-package-always-defer} to t, and also use @strong{NOTE}: Pay attention if you set @code{use-package-always-defer} to t, and also use
the @code{:after} keyword, as you will need to specify how the declared package is the @code{:after} keyword, as you will need to specify how the declared package is
to be loaded: e.g., by some @code{:bind}. If you're not using one of the mechanisms to be loaded: e.g., by some @code{:bind}. If you're not using one of the mechanisms
that registers autoloads, such as @code{:bind} or @code{:hook}, and your package manager that registers autoloads, such as @code{:bind} or @code{:hook}, and your package manager
does not provide autoloads, it's possible that without adding @code{:demand t} to does not provide autoloads, it's possible that without adding @code{:demand t} to
those declarations, your package will never be loaded. those declarations, your package will never be loaded.
@ -340,14 +340,14 @@ those declarations, your package will never be loaded.
@section @code{:bind-keymap}, @code{:bind-keymap*} @section @code{:bind-keymap}, @code{:bind-keymap*}
Normally @code{:bind} expects that commands are functions that will be autoloaded Normally @code{:bind} expects that commands are functions that will be autoloaded
from the given package. However, this does not work if one of those commands from the given package. However, this does not work if one of those commands
is actually a keymap, since keymaps are not functions, and cannot be is actually a keymap, since keymaps are not functions, and cannot be
autoloaded using Emacs' @code{autoload} mechanism. autoloaded using Emacs' @code{autoload} mechanism.
To handle this case, @code{use-package} offers a special, limited variant of To handle this case, @code{use-package} offers a special, limited variant of
@code{:bind} called @code{:bind-keymap}. The only difference is that the "commands" @code{:bind} called @code{:bind-keymap}. The only difference is that the "commands"
bound to by @code{:bind-keymap} must be keymaps defined in the package, rather than bound to by @code{:bind-keymap} must be keymaps defined in the package, rather than
command functions. This is handled behind the scenes by generating custom code command functions. This is handled behind the scenes by generating custom code
that loads the package containing the keymap, and then re-executes your that loads the package containing the keymap, and then re-executes your
keypress after the first load, to reinterpret that keypress as a prefix key. keypress after the first load, to reinterpret that keypress as a prefix key.
@ -386,7 +386,7 @@ A more literal way to do the exact same thing is:
@end lisp @end lisp
When you use the @code{:commands} keyword, it creates autoloads for those commands When you use the @code{:commands} keyword, it creates autoloads for those commands
and defers loading of the module until they are used. Since the @code{:init} form and defers loading of the module until they are used. Since the @code{:init} form
is always run---even if @code{ace-jump-mode} might not be on your system---remember is always run---even if @code{ace-jump-mode} might not be on your system---remember
to restrict @code{:init} code to only what would succeed either way. to restrict @code{:init} code to only what would succeed either way.
@ -402,7 +402,7 @@ The @code{:bind} keyword takes either a cons or a list of conses:
The @code{:commands} keyword likewise takes either a symbol or a list of symbols. The @code{:commands} keyword likewise takes either a symbol or a list of symbols.
NOTE: Special keys like @code{tab} or @code{F1}-@code{Fn} can be written in square brackets, NOTE: Special keys like @code{tab} or @code{F1}-@code{Fn} can be written in square brackets,
i.e. @code{[tab]} instead of @code{"tab"}. The syntax for the keybindings is similar to i.e. @code{[tab]} instead of @code{"tab"}. The syntax for the keybindings is similar to
the "kbd" syntax: see @uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Init-Rebinding.html, the Emacs Manual} for more information. the "kbd" syntax: see @uref{https://www.gnu.org/software/emacs/manual/html_node/emacs/Init-Rebinding.html, the Emacs Manual} for more information.
Examples: Examples:
@ -436,7 +436,7 @@ The effect of this statement is to wait until @code{helm} has loaded, and then t
bind the key @code{C-c h} to @code{helm-execute-persistent-action} within Helm's local bind the key @code{C-c h} to @code{helm-execute-persistent-action} within Helm's local
keymap, @code{helm-mode-map}. keymap, @code{helm-mode-map}.
Multiple uses of @code{:map} may be specified. Any binding occurring before the Multiple uses of @code{:map} may be specified. Any binding occurring before the
first use of @code{:map} are applied to the global keymap: first use of @code{:map} are applied to the global keymap:
@lisp @lisp
@ -470,7 +470,7 @@ Here is the simplest @code{use-package} declaration:
@end lisp @end lisp
This loads in the package @code{foo}, but only if @code{foo} is available on your This loads in the package @code{foo}, but only if @code{foo} is available on your
system. If not, a warning is logged to the @code{*Messages*} buffer. If it system. If not, a warning is logged to the @code{*Messages*} buffer. If it
succeeds, a message about @code{"Loading foo"} is logged, along with the time it succeeds, a message about @code{"Loading foo"} is logged, along with the time it
took to load, if it took over 0.1 seconds. took to load, if it took over 0.1 seconds.
@ -544,14 +544,14 @@ The @code{:custom-face} keyword allows customization of package custom faces.
@node @code{defer} @code{demand} @node @code{defer} @code{demand}
@section @code{:defer}, @code{:demand} @section @code{:defer}, @code{:demand}
In almost all cases you don't need to manually specify @code{:defer t}. This is In almost all cases you don't need to manually specify @code{:defer t}. This is
implied whenever @code{:bind} or @code{:mode} or @code{:interpreter} is used. Typically, you implied whenever @code{:bind} or @code{:mode} or @code{:interpreter} is used. Typically, you
only need to specify @code{:defer} if you know for a fact that some other package only need to specify @code{:defer} if you know for a fact that some other package
will do something to cause your package to load at the appropriate time, and will do something to cause your package to load at the appropriate time, and
thus you would like to defer loading even though use-package isn't creating thus you would like to defer loading even though use-package isn't creating
any autoloads for you. any autoloads for you.
You can override package deferral with the @code{:demand} keyword. Thus, even if You can override package deferral with the @code{:demand} keyword. Thus, even if
you use @code{:bind}, using @code{:demand} will force loading to occur immediately and you use @code{:bind}, using @code{:demand} will force loading to occur immediately and
not establish an autoload for the bound key. not establish an autoload for the bound key.
@ -593,7 +593,7 @@ If you need to silence a missing function warning, you can use @code{:functions}
@section @code{:diminish}, @code{:delight} @section @code{:diminish}, @code{:delight}
@code{use-package} also provides built-in support for the diminish and delight @code{use-package} also provides built-in support for the diminish and delight
utilities---if you have them installed. Their purpose is to remove or change utilities---if you have them installed. Their purpose is to remove or change
minor mode strings in your mode-line. minor mode strings in your mode-line.
@uref{https://github.com/myrjola/diminish.el, diminish} is invoked with the @code{:diminish} keyword, which is passed either a @uref{https://github.com/myrjola/diminish.el, diminish} is invoked with the @code{:diminish} keyword, which is passed either a
@ -612,7 +612,7 @@ package name with "-mode" appended at the end:
@uref{https://elpa.gnu.org/packages/delight.html, delight} is invoked with the @code{:delight} keyword, which is passed a minor mode @uref{https://elpa.gnu.org/packages/delight.html, delight} is invoked with the @code{:delight} keyword, which is passed a minor mode
symbol, a replacement string or quoted @uref{https://www.gnu.org/software/emacs/manual/html_node/elisp/Mode-Line-Data.html, mode-line data} (in which case the minor symbol, a replacement string or quoted @uref{https://www.gnu.org/software/emacs/manual/html_node/elisp/Mode-Line-Data.html, mode-line data} (in which case the minor
mode symbol is guessed to be the package name with "-mode" appended at the mode symbol is guessed to be the package name with "-mode" appended at the
end), both of these, or several lists of both. If no arguments are provided, end), both of these, or several lists of both. If no arguments are provided,
the default mode name is hidden completely. the default mode name is hidden completely.
@lisp @lisp
@ -654,7 +654,7 @@ from the output entirely, to accelerate startup times.
@node @code{ensure} @code{pin} @node @code{ensure} @code{pin}
@section @code{:ensure}, @code{:pin} @section @code{:ensure}, @code{:pin}
You can use @code{use-package} to load packages from ELPA with @code{package.el}. This You can use @code{use-package} to load packages from ELPA with @code{package.el}. This
is particularly useful if you share your @code{.emacs} among several machines; the is particularly useful if you share your @code{.emacs} among several machines; the
relevant packages are downloaded automatically once declared in your @code{.emacs}. relevant packages are downloaded automatically once declared in your @code{.emacs}.
The @code{:ensure} keyword causes the package(s) to be installed automatically if The @code{:ensure} keyword causes the package(s) to be installed automatically if
@ -684,7 +684,7 @@ archives is also a valid use-case.
By default @code{package.el} prefers @code{melpa} over @code{melpa-stable} due to the By default @code{package.el} prefers @code{melpa} over @code{melpa-stable} due to the
versioning @code{(> evil-20141208.623 evil-1.0.9)}, so even if you are tracking versioning @code{(> evil-20141208.623 evil-1.0.9)}, so even if you are tracking
only a single package from @code{melpa}, you will need to tag all the non-@code{melpa} only a single package from @code{melpa}, you will need to tag all the non-@code{melpa}
packages with the appropriate archive. If this really annoys you, then you can packages with the appropriate archive. If this really annoys you, then you can
set @code{use-package-always-pin} to set a default. set @code{use-package-always-pin} to set a default.
If you want to manually keep a package updated and ignore upstream updates, If you want to manually keep a package updated and ignore upstream updates,
@ -729,7 +729,7 @@ Example:
@section @code{:hook} @section @code{:hook}
The @code{:hook} keyword allows adding functions onto hooks, here only the basename The @code{:hook} keyword allows adding functions onto hooks, here only the basename
of the hook is required. Thus, all of the following are equivalent: of the hook is required. Thus, all of the following are equivalent:
@lisp @lisp
(use-package ace-jump-mode (use-package ace-jump-mode
@ -804,8 +804,8 @@ the same thing as @code{:if (not foo)}.
@section @code{:load-path} @section @code{:load-path}
If your package needs a directory added to the @code{load-path} in order to load, If your package needs a directory added to the @code{load-path} in order to load,
use @code{:load-path}. This takes a symbol, a function, a string or a list of use @code{:load-path}. This takes a symbol, a function, a string or a list of
strings. If the path is relative, it is expanded within strings. If the path is relative, it is expanded within
@code{user-emacs-directory}: @code{user-emacs-directory}:
@lisp @lisp
@ -816,8 +816,8 @@ strings. If the path is relative, it is expanded within
Note that when using a symbol or a function to provide a dynamically generated Note that when using a symbol or a function to provide a dynamically generated
list of paths, you must inform the byte-compiler of this definition so the list of paths, you must inform the byte-compiler of this definition so the
value is available at byte-compilation time. This is done by using the special value is available at byte-compilation time. This is done by using the special
form @code{eval-and-compile} (as opposed to @code{eval-when-compile}). Further, this form @code{eval-and-compile} (as opposed to @code{eval-when-compile}). Further, this
value is fixed at whatever was determined during compilation, to avoid looking value is fixed at whatever was determined during compilation, to avoid looking
up the same information again on each startup: up the same information again on each startup:
@ -836,7 +836,7 @@ up the same information again on each startup:
Similar to @code{:bind}, you can use @code{:mode} and @code{:interpreter} to establish a Similar to @code{:bind}, you can use @code{:mode} and @code{:interpreter} to establish a
deferred binding within the @code{auto-mode-alist} and @code{interpreter-mode-alist} deferred binding within the @code{auto-mode-alist} and @code{interpreter-mode-alist}
variables. The specifier to either keyword can be a cons cell, a list of cons variables. The specifier to either keyword can be a cons cell, a list of cons
cells, or a string or regexp: cells, or a string or regexp:
@lisp @lisp
@ -875,8 +875,8 @@ This does exactly the same thing as the following:
Similar to @code{:mode} and @code{:interpreter}, you can also use @code{:magic} and Similar to @code{:mode} and @code{:interpreter}, you can also use @code{:magic} and
@code{:magic-fallback} to cause certain function to be run if the beginning of a @code{:magic-fallback} to cause certain function to be run if the beginning of a
file matches a given regular expression. The difference between the two is file matches a given regular expression. The difference between the two is
that @code{:magic-fallback} has a lower priority than @code{:mode}. For example: that @code{:magic-fallback} has a lower priority than @code{:mode}. For example:
@lisp @lisp
(use-package pdf-tools (use-package pdf-tools
@ -895,9 +895,9 @@ string @code{"%PDF"}.
Normally, @code{use-package} will load each package at compile time before Normally, @code{use-package} will load each package at compile time before
compiling the configuration, to ensure that any necessary symbols are in scope compiling the configuration, to ensure that any necessary symbols are in scope
to satisfy the byte-compiler. At times this can cause problems, since a to satisfy the byte-compiler. At times this can cause problems, since a
package may have special loading requirements, and all that you want to use package may have special loading requirements, and all that you want to use
@code{use-package} for is to add a configuration to the @code{eval-after-load} hook. In @code{use-package} for is to add a configuration to the @code{eval-after-load} hook. In
such cases, use the @code{:no-require} keyword: such cases, use the @code{:no-require} keyword:
@lisp @lisp
@ -913,8 +913,8 @@ such cases, use the @code{:no-require} keyword:
While the @code{:after} keyword delays loading until the dependencies are loaded, While the @code{:after} keyword delays loading until the dependencies are loaded,
the somewhat simpler @code{:requires} keyword simply never loads the package if the the somewhat simpler @code{:requires} keyword simply never loads the package if the
dependencies are not available at the time the @code{use-package} declaration is dependencies are not available at the time the @code{use-package} declaration is
encountered. By "available" in this context it means that @code{foo} is available encountered. By "available" in this context it means that @code{foo} is available
of @code{(featurep 'foo)} evaluates to a non-nil value. For example: of @code{(featurep 'foo)} evaluates to a non-nil value. For example:
@lisp @lisp
(use-package abbrev (use-package abbrev