Bash null-byte warning for tab-completion

[AzarAI-TOP]

Affected Version

yay v12.5.3 - libalpm v15.0.0

Describe the bug

After updating yay today, I find a warning-level issue for tab-completion. When I press tab for completion, the bash produce a warning:

bash: warning: command substitution: ignored null byte in input

And I'm sure my completion file is same with the origin one, and tried reinstalling yay and bash-complete, but it doesn't work.

Reproduction Steps

1. input yay -S xxx (xxx is part of the name of package)
2. press tab

Expected behavior

a clear completion list of packages without warning info

Output

$ yay -S manbash: warning: command substitution: ignored null byte in input

man2html         man-pages-cs     man-pages-hu     man-pages-pt_br  man-pages-zh_cn
man-db           man-pages-da     man-pages-id     man-pages-ro     man-pages-zh_tw
mandoc           man-pages-de     man-pages-it     man-pages-ru     manuals
mandown          man-pages-el     man-pages-mk     man-pages-sr     manuskript
mangohud         man-pages-es     man-pages-nb     man-pages-sv
manifold         man-pages-fi     man-pages-nl     man-pages-uk
man-pages        man-pages-fr     man-pages-pl     man-pages-vi

$ yay -S libbash: warning: command substitution: ignored null byte in input

Display all 1452 possibilities? (y or n)

How can I dismiss this warning ?

[Jguer]

Your completion cache was probably generated before v12.5.3 and now contains some gzip data it should not. Can you delete ~/.cache/yay/completion.cache and try again?

EDIT: running yay -Pcc should regenerate the file correctly

[ConnahGriffin]

@Jguer I had an issue similar to the user above but there was no display of what could complete it as shown above.
instead i got something like this

[user@user-pc ~]$ yay -S projebash: warning: command substitution: ignored null byte in input
ctmbash: warning: command substitution: ignored null byte in input)

After doing as youve said, it is now displaying as the user above

[user@user-pc ~]$ yay -S probash: warning: command substitution: ignored null byte in input

procinfo-ng                        profile-validate                   prometheus-blackbox-exporter       prometheus-redis-exporter          promtail                           protonutils
procps-ng                          progpick                           prometheus-elasticsearch-exporter  prometheus-smartctl-exporter       prosody                            proton-vpn-gtk-app
procs                              progress                           prometheus-ipmi-exporter           prometheus-smokeping-prober        protege                            protozero
procstatd                          proj                               prometheus-json-exporter           prometheus-snmp-exporter           protobuf                           protozero-docs
procyon-decompiler                 projectm                           prometheus-memcached-exporter      prometheus-ssl-exporter            protobuf-c                         proximity-sort
profanity                          projectm-pulseaudio                prometheus-mysqld-exporter         prometheus-systemd-exporter        protonmail-bridge                  proxmark3
profanity-gtk                      projectm-sdl                       prometheus-node-exporter           prometheus-unbound-exporter        protonmail-bridge-core             proxyboi
profile-cleaner                    prometheus                         prometheus-nut-exporter            prometheus-varnish-exporter        protontricks                       proxychains-ng
profile-sync-daemon                prometheus-bird-exporter           prometheus-postgres-exporter       prometheus-wireguard-exporter      protonup-qt                        proxytunnel

Edit: grammar check

[georgedorn]

Possibly related, I'm not seeing AUR packages in the tab completion, either. For example, synergy3-bin (or anything starting with 'synergy') doesn't show up in tab completion, but it is installable.

[Derpthemeus]

I've been experiencing the same issue, clearing cache didn't help

[matt@mango temp]$ rm -rf ~/.cache/yay/
[matt@mango temp]$ yay --version
yay v12.5.0 - libalpm v15.0.0
[matt@mango temp]$ yay -Syu tabbash: warning: command substitution: ignored null byte in input
iew ^C
[matt@mango temp]$ pacman -Syu ta
tabiew                       taglib                       tailspin                     tali                         talosctl                     tangler                      taplo-cli                    tarsnap     

[Jguer]

This issue is present in all versions before v12.5.3 @Derpthemeus, your yay version is out of date