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4 Commits
Author SHA1 Message Date
Yu Watanabe 649c63d6ac profile: return earlier if it is loaded from non-bash shell 
Follow-up for dadbb34919.
 2025-02-28 21:24:06 +09:00
Lennart Poettering dadbb34919 profile: generate shell + command OSC events 2025-02-27 15:13:15 +01:00
Tobias Klauser 12e33d332b profile.d: don't bail if $SHELL_* variables are unset 
If - for whatever reason - a script uses set -u (nounset) and includes
/etc/profile.d/70-systemd-shell-extra.sh (e.g. transitively via
/etc/profile) the script would fail with:

    /etc/profile.d/70-systemd-shell-extra.sh: line 15: SHELL_PROMPT_PREFIX: unbound variable

For example:

    $ cat > foo.sh <<EOF
    #!/bin/sh
    set -u

    source /etc/profile
    EOF
    $ chmod 700 foo.sh
    $ ./foo.sh
    /etc/profile.d/70-systemd-shell-extra.sh: line 15: SHELL_PROMPT_PREFIX: unbound variable

Fix this by using shell parameter substitution[^1] (which is a POSIX
shell concept) to set the $SHELL_* variables to the empty string if
undefined.

[^1]: https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/utilities/V3_chap02.html
 2024-12-11 18:33:41 +00:00
Lennart Poettering 229d4a9806 shell: define three system credentials we can propagate into shell prompts and welcome messages 2024-09-09 19:03:48 +02:00