Mention 'make deps' target in more places

* targets/obsolete-config.el:
* doc/ivy.org (Setup): Add directory names to load-path.
(Installing from the Git repository):
* CONTRIBUTING.org (Reporting issues): Mention 'make deps' as a
prerequisite for installing the 'avy' package.
* doc/ivy.texi: Regenerate manual.
* ivy.el (ivy--sorted-files): Add commentary about the potential
need for substitute-in-file-name (#3060).

CONTRIBUTING.org

@@ -14,9 +14,9 @@ init file.
 This shortcut will start =emacs -Q= for you with =ivy-mode= already
 loaded:
 #+begin_src sh
-git clone https://github.com/abo-abo/swiper/
-cd swiper
-make plain
+  git clone 'https://github.com/abo-abo/swiper.git'
+  cd swiper
+  make deps plain
 #+end_src
 
 * Contributing code

doc/ivy.org

@@ -18,8 +18,8 @@
 #+STARTUP: indent
 * Setup                                                                               :noexport:
 #+BEGIN_SRC elisp :exports results :results silent
-(add-to-list 'load-path default-directory)
-(require 'ivy-ox)
+  (add-to-list 'load-path (directory-file-name default-directory))
+  (require 'ivy-ox)
 #+END_SRC
 * Writing this manual                                                                 :noexport:
 To highlight a section without introducing a new subheading use
@@ -189,15 +189,15 @@ For package manager details, see [[info:emacs#Packages]].
      First clone the Swiper repository with:
 
      #+begin_src sh
-     cd ~/git && git clone https://github.com/abo-abo/swiper
-     cd swiper && make compile
+       cd ~/git && git clone 'https://github.com/abo-abo/swiper.git'
+       cd swiper && make deps compile
      #+end_src
 
      Second, add these lines to the Emacs init file:
 
      #+begin_src elisp
-     (add-to-list 'load-path "~/git/swiper/")
-     (require 'ivy)
+       (add-to-list 'load-path "~/git/swiper")
+       (require 'ivy)
      #+end_src
 
      Then, update the code with:

doc/ivy.texi

@@ -261,14 +261,14 @@ Contribute to Ivy's development; send patches; pull requests
 First clone the Swiper repository with:
 
 @example
-cd ~/git && git clone https://github.com/abo-abo/swiper
-cd swiper && make compile
+cd ~/git && git clone 'https://github.com/abo-abo/swiper.git'
+cd swiper && make deps compile
 @end example
 
 Second, add these lines to the Emacs init file:
 
 @lisp
-(add-to-list 'load-path "~/git/swiper/")
+(add-to-list 'load-path "~/git/swiper")
 (require 'ivy)
 @end lisp
 

ivy.el

@@ -2037,6 +2037,8 @@ Directories come first."
          (seq (cl-mapcan
                (lambda (f)
                  (unless (member f '("./" "../"))
+                   ;; FIXME: Use `substitute-in-file-name'?
+                   ;; Re: #2012, #3060.
                    (setq f (ivy--string-replace "$$" "$" f))
                    (list (if (and dirs-first (ivy--dirname-p f))
                              (propertize f 'ivy--dir (directory-file-name f))

targets/obsolete-config.el

@@ -1,5 +1,5 @@
 ;; Copyright (C) 2016-2024 Free Software Foundation, Inc.
-(add-to-list 'load-path default-directory)
+(add-to-list 'load-path (directory-file-name default-directory))
 (require 'counsel)
-(ivy-set-display-transformer 'ivy-switch-buffer 'ivy-switch-buffer-transformer)
+(ivy-set-display-transformer 'ivy-switch-buffer #'ivy-switch-buffer-transformer)
 (byte-compile-file (expand-file-name "targets/obsolete-config.el"))