From: Muhammad Mahendra Subrata <mumahendras3@gmail.com>
To: supervision@list.skarnet.org
Subject: The multisubstitute commands in the run script generated by s6-usertree-maker are in a wrong order
Date: Fri, 22 Jan 2021 15:01:18 +0700 [thread overview]
Message-ID: <719f5399-2d05-d6d0-7377-e4014aab1ac1@gmail.com> (raw)
Hello everyone,
I'm using skalibs-2.10.0.0, execline-2.7.0.0, and s6-2.10.0.0 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"
multisubstitute
{
importas -i USER USER
importas -i HOME HOME
importas -i UID UID
importas -i GID GID
importas -i GIDLIST GIDLIST
}
multisubstitute
{
importas -D "" -- "XDG_RUNTIME_DIR" "XDG_RUNTIME_DIR"
}
export "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?
Thanks!
next reply other threads:[~2021-01-22 8:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 8:01 Muhammad Mahendra Subrata [this message]
2021-01-22 10:28 ` Laurent Bercot
2021-01-22 12:54 ` Muhammad Mahendra Subrata
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