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https://github.com/fsquillace/junest.git
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ddc7ede70a
This change separate different parts of the code into several categories: `chroot`, `proot`, `build`, `common`, `setup`. This should simplify the maintenance of the code and will help introducing the user namespace module in a easier way.
45 lines
1.6 KiB
Bash
45 lines
1.6 KiB
Bash
#!/usr/bin/env bash
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#
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# This module contains all chroot functionalities for JuNest.
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#
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# Dependencies:
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# - lib/utils/utils.sh
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# - lib/core/common.sh
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#
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# vim: ft=sh
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#######################################
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# Run JuNest as real root.
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#
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# Globals:
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# JUNEST_HOME (RO) : The JuNest home directory.
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# UID (RO) : The user ID.
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# SUDO_USER (RO) : The sudo user ID.
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# SUDO_GID (RO) : The sudo group ID.
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# SH (RO) : Contains the default command to run in JuNest.
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# Arguments:
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# cmd ($@?) : The command to run inside JuNest environment.
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# Default command is defined by SH variable.
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# Returns:
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# $ARCHITECTURE_MISMATCH : If host and JuNest architecture are different.
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# Output:
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# - : The command output.
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#######################################
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function run_env_as_root(){
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source ${JUNEST_HOME}/etc/junest/info
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[ "$JUNEST_ARCH" != "$ARCH" ] && \
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die_on_status $ARCHITECTURE_MISMATCH "The host system architecture is not correct: $ARCH != $JUNEST_ARCH"
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local uid=$UID
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# SUDO_USER is more reliable compared to SUDO_UID
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[ -z $SUDO_USER ] || uid=$SUDO_USER:$SUDO_GID
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local main_cmd="${SH[@]}"
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[ "$1" != "" ] && main_cmd="$(insert_quotes_on_spaces "$@")"
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# With chown the ownership of the files is assigned to the real user
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trap - QUIT EXIT ABRT KILL TERM INT
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trap "[ -z $uid ] || chown_cmd -R ${uid} ${JUNEST_HOME};" EXIT QUIT ABRT KILL TERM INT
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JUNEST_ENV=1 chroot_cmd "$JUNEST_HOME" "${SH[@]}" "-c" "${main_cmd}"
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}
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