smoser
commented
5 months ago apk-package(5) says:
triggers List of directory globs. APK will execute the trigger script with list of matched directories when any action (package installation, removal) has modified content of that directory. When package is being fixed or installed it will get list of all matching directories.
so the script we have in busybox.yaml should get called.
I tested that the script does work even in the absence of /bin/sh:
bash-5.2# cat xx
#!/bin/busybox sh
/bin/busybox --install -s
bash-5.2# ls -l /bin/sh
lrwxrwxrwx 1 root root 12 Apr 24 16:55 /bin/sh -> /bin/busybox
bash-5.2# cat xx
#!/bin/busybox sh
/bin/busybox --install -s
bash-5.2# chmod 755 xx
bash-5.2# rm /bin/sh
bash-5.2# ./xx
bash-5.2# ls -l /bin/sh
lrwxrwxrwx 1 root root 12 Apr 24 16:56 /bin/sh -> /bin/busybox
dash-binsh doesn't restore busybox sh after removal
Install busybox, /bin/sh points at busybox.
Install dash-binsh, /bin/sh points at dash.
Remove dash-binsh, /bin/sh is now gone.
Maybe we can add a post-deinstall scriplet to check if busybox exists and if so, run install on it again.