Hello everyone,

I'm using skalibs-, execline-, and s6- here in my system. I tried using the s6-usertree-maker with below invocation:

    s6-usertree-maker -E /etc/user-env -e XDG_RUNTIME_DIR user /var/log/user-subtree /tmp/user-subtree

Below is the generated run script:

    #!/bin/execlineb -P
    fdmove -c 2 1
    emptyenv -p
    export USER "user"
    s6-envuidgid -i -- "user"
    s6-applyuidgid -U --
    backtick -in HOME { homeof "user" }
    s6-envdir -i -- "/etc/user-env"
      importas -i USER USER
      importas -i HOME HOME
      importas -i UID UID
      importas -i GID GID
      importas -i GIDLIST GIDLIST
      importas -D "" -- "XDG_RUNTIME_DIR" "XDG_RUNTIME_DIR"
    export PATH "/usr/bin:/bin"
    s6-svscan -d3 -- "${HOME}/service"

As shown above, the multisubstitute command that contains XDG_RUNTIME_DIR is put after the one that contains USER, HOME, UID, GID, and GIDLIST. If for example XDG_RUNTIME_DIR=/run/user/$UID, the $UID here will not be substituted with the user's UID since by the time $UID is substituted, $XDG_RUNTIME_DIR hasn't been substituted yet. So perhaps the order of these two multisubstitute should be inverted.

I was hit by this problem when trying to use it on my system, where I found XDG_DATA_HOME was still set to ${HOME}/.local/share (i.e. the ${HOME} was not substituted with the path to my home directory).

Has anyone encountered this too? Or perhaps I'm just doing things incorrectly?


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