bug#57781: missing wallpaper command

[Stefan Kangas]

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Felix <felix.dick@web.de> writes:

>> [2. text/x-diff; 0001-Fix-setting-the-wallpaper-with-swaybg-and-wbg.patch]...
>
> It doesn't work on my side.
> Here is the debug log
>
> Debugger entered--Lisp error: (wrong-type-argument numberp nil)
>   number-to-string(nil)
>   (and (fboundp 'x-window-property) (display-graphic-p) (number-to-string (or 
> (x-window-property "_NET_CURRENT_DESKTOP" nil "CARDINAL" 0 nil t) 
> (x-window-property "WIN_WORKSPACE" nil "CARDINAL" 0 nil t))))
>   (or (and (fboundp 'x-window-property) (display-graphic-p) (number-to-string 
> (or (x-window-property "_NET_CURRENT_DESKTOP" nil "CARDINAL" 0 nil t) 
> (x-window-property "WIN_WORKSPACE" nil "CARDINAL" 0 nil t)))) "0")
>   (cons 87 (or (and (fboundp 'x-window-property) (display-graphic-p) 
> (number-to-string (or (x-window-property "_NET_CURRENT_DESKTOP" nil 
> "CARDINAL" 0 nil t) (x-window-property "WIN_WORKSPACE" nil "CARDINAL" 0 nil 
> t)))) "0"))
>   (list (cons 102 (expand-file-name file)) (cons 70 (mapconcat 
> #'url-hexify-string (file-name-split file) "/")) (cons 104 #'(lambda nil 
> (wallpaper--get-height-or-width "height" #'display-pixel-height 
> wallpaper-default-height))) (cons 119 #'(lambda nil 
> (wallpaper--get-height-or-width "width" #'display-pixel-width 
> wallpaper-default-width))) (cons 83 (let ((display (frame-parameter 
> (selected-frame) 'display))) (if (and display (string-match 
> ":[0-9]+\\.\\([0-9]+\\)\\'" display)) (match-string 1 display) "0"))) (cons 
> 77 #'wallpaper--x-monitor-name) (cons 87 (or (and (fboundp 
> 'x-window-property) (display-graphic-p) (number-to-string (or 
> (x-window-property "_NET_CURRENT_DESKTOP" nil "CARDINAL" 0 nil t) 
> (x-window-property "WIN_WORKSPACE" nil "CARDINAL" 0 nil t)))) "0")))
>   (format-spec format (list (cons 102 (expand-file-name file)) (cons 70 
> (mapconcat #'url-hexify-string (file-name-split file) "/")) (cons 104 
> #'(lambda nil (wallpaper--get-height-or-width "height" #'display-pixel-height 
> wallpaper-default-height))) (cons 119 #'(lambda nil 
> (wallpaper--get-height-or-width "width" #'display-pixel-width 
> wallpaper-default-width))) (cons 83 (let ((display (frame-parameter 
> (selected-frame) 'display))) (if (and display (string-match 
> ":[0-9]+\\.\\([0-9]+\\)\\'" display)) (match-string 1 display) "0"))) (cons 
> 77 #'wallpaper--x-monitor-name) (cons 87 (or (and (fboundp 
> 'x-window-property) (display-graphic-p) (number-to-string (or 
> (x-window-property "_NET_CURRENT_DESKTOP" nil "CARDINAL" 0 nil t) 
> (x-window-property "WIN_WORKSPACE" nil "CARDINAL" 0 nil t)))) "0"))))
>   wallpaper--format-arg("%f" "~/wallpapers/bloom.jpg")
>   (closure ((args "%f") (file . "~/wallpapers/bloom.jpg") 
> cl-struct-wallpaper-setter-tags t) (arg) (wallpaper--format-arg arg 
> file))("%f")
>   mapcar((closure ((args "%f") (file . "~/wallpapers/bloom.jpg") 
> cl-struct-wallpaper-setter-tags t) (arg) (wallpaper--format-arg arg file)) 
> ("%f"))
>   (let* ((args (if (functionp wallpaper-command-args) (funcall 
> wallpaper-command-args) wallpaper-command-args)) (real-args (mapcar #'(lambda 
> (arg) (wallpaper--format-arg arg file)) args)) (bufname (format " 
> *wallpaper-%s*" (random))) (setter (and (progn (and (memq (type-of 
> wallpaper--current-setter) cl-struct-wallpaper-setter-tags) t)) (equal (progn 
> (or (progn ...) (signal ... ...)) (aref wallpaper--current-setter 2)) 
> wallpaper-command) wallpaper--current-setter)) (init-action (and setter 
> (progn (or (progn (and ... t)) (signal 'wrong-type-argument (list ... 
> setter))) (aref setter 5)))) (detach (and setter (progn (or (progn (and ... 
> t)) (signal 'wrong-type-argument (list ... setter))) (aref setter 6)))) 
> process) (if init-action (progn (funcall init-action))) (wallpaper-debug 
> "Using command: \"%s %s\"" wallpaper-command (string-join real-args " ")) (if 
> detach (apply #'call-process wallpaper-command nil 0 nil real-args) (setq 
> process (apply #'start-process "set-wallpaper" bufname wallpaper-command 
> real-args)) (let* ((v process)) (set-process-sentinel v #'(lambda (process 
> status) (unwind-protect (if ... ... ...) (condition-case nil ... ...)))))) 
> process)
>   wallpaper-default-set-function("~/wallpapers/bloom.jpg")
>   funcall(wallpaper-default-set-function "~/wallpapers/bloom.jpg")
>   wallpaper-set("~/wallpapers/bloom.jpg")
>   (progn (wallpaper-set "~/wallpapers/bloom.jpg"))

Thanks.  This error was unrelated to the patch, but should now be fixed
on the master branch (commit 55bd6a5cd4).  Could you please pull latest
master, re-apply the patch, and then try again?