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24 lines
1.1 KiB
Bash
Executable file
24 lines
1.1 KiB
Bash
Executable file
#!/bin/bash
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set -euo pipefail
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# This is a helper wrapper script for greetd.
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#
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# It will run the session / application using the appropriate shell configured for
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# this user. That way, we can make sure all of the environment variables are set
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# before the WM/DE session is started.
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#
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# This is very important, as without it, variables for things like qt theme
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# will not be set, and applications executed by the WM/DE will not be themed properly.
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script_name="$0"
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shell="$(getent passwd "$USER" | awk -F: '{print $NF}')"
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command=("$@")
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# This syntax might be a bit confusing at first. It works as follows:
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# 1. Replace this wrapper process with the user's login shell (through exec)
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# 2. The shell is told to run 'exec $@' replacing itself with another process
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# 3. The $@ in the exec above referrs to the arguments passed the shell (after -c '...')
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# 4. "$script_name" is passed to the shell as $0 (process name), not included in $@
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# 5. The ${command[@]} matches the $@ which this script was called with
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# -> The command passed into this script as args is ran within the user's shell
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exec "$shell" -c 'exec "$@"' "$script_name" "${command[@]}"
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