Single output usage

[Mukund Mauji]

I'm having difficulty using this with dwm since it uses WM_NAME to set the statusbar. Is there a way to make baru output just once and then exit? If not, would it be possible to add this as an argument (ex. --once)?

This is because the only way to change WM_NAME "manually" is to run xsetroot -name $status. With this feature I could do xsetroot -name $(baru --once).

If there is another way to set WM_NAME with baru, please let me know.

[Pierre]

Hi !

You could use this little C binary:

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <X11/Xlib.h>

int             main(int argc, char *argv[]) {
    Display     *dpy = NULL;
    Window      win = 0;
    size_t      length = 0;
    ssize_t     bytes_read = 0;
    char        *input = NULL;

    dpy = XOpenDisplay(getenv("DISPLAY"));
    if (dpy == NULL) {
        fprintf(stderr, "Can't open display, exiting.\n");
        exit(1);
    }
    win = DefaultRootWindow(dpy);

    while ((bytes_read = getline(&input, &length, stdin)) != EOF) {
        input[strlen(input) - 1] = '\0';
        XStoreName(dpy, win, input);
        XFlush(dpy);
    }
    free(input);
    return 0;
}

It reads on the standard input and set the name of the X root window with it.
Compile it:

gcc dwm-setstatus.c -lX11 -o dwm-setstatus

Then in your WM startup process pipe baru output in dwm-setstatus input in a detached mod.
For example in your .xinitrc put this:

(baru | dwm-setstatus) &

And you should be good to go.

source