1
0
mirror of https://github.com/mail-in-a-box/mailinabox.git synced 2024-12-24 07:37:04 +00:00
mailinabox/setup/preflight.sh
Bastian Bittorf 1053340124
setup/preflight.sh: fix some minor shellcheck complaints (#2342)
This file passes shellcheck now without errors.
This paritally fixes #1457 - the former errors where:

$ shellcheck setup/preflight.sh

In setup/preflight.sh line 1:
^-- SC2148 (error): Tips depend on target shell and yours is unknown. Add a shebang or a 'shell' directive.

In setup/preflight.sh line 29:
if [ $TOTAL_PHYSICAL_MEM -lt 490000 ]; then
     ^-----------------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
if [ "$TOTAL_PHYSICAL_MEM" -lt 490000 ]; then

In setup/preflight.sh line 31:
	TOTAL_PHYSICAL_MEM=$(expr \( \( $TOTAL_PHYSICAL_MEM \* 1024 \) / 1000 \) / 1000)
                             ^--^ SC2003 (style): expr is antiquated. Consider rewriting this using $((..)), ${} or [[ ]].
                                        ^-----------------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
	TOTAL_PHYSICAL_MEM=$(expr \( \( "$TOTAL_PHYSICAL_MEM" \* 1024 \) / 1000 \) / 1000)

In setup/preflight.sh line 38:
if [ $TOTAL_PHYSICAL_MEM -lt 750000 ]; then
     ^-----------------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
if [ "$TOTAL_PHYSICAL_MEM" -lt 750000 ]; then

For more information:
  https://www.shellcheck.net/wiki/SC2148 -- Tips depend on target shell and y...
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...
  https://www.shellcheck.net/wiki/SC2003 -- expr is antiquated. Consider rewr...
2024-03-10 08:01:13 -04:00

68 lines
2.3 KiB
Bash

#!/bin/bash
# Are we running as root?
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root. Please re-run like this:"
echo
echo "sudo $0"
echo
exit 1
fi
# Check that we are running on Ubuntu 20.04 LTS (or 20.04.xx).
if [ "$( lsb_release --id --short )" != "Ubuntu" ] || [ "$( lsb_release --release --short )" != "22.04" ]; then
echo "Mail-in-a-Box only supports being installed on Ubuntu 22.04, sorry. You are running:"
echo
lsb_release --description --short
echo
echo "We can't write scripts that run on every possible setup, sorry."
exit 1
fi
# Check that we have enough memory.
#
# /proc/meminfo reports free memory in kibibytes. Our baseline will be 512 MB,
# which is 500000 kibibytes.
#
# We will display a warning if the memory is below 768 MB which is 750000 kibibytes
#
# Skip the check if we appear to be running inside of Vagrant, because that's really just for testing.
TOTAL_PHYSICAL_MEM=$(head -n 1 /proc/meminfo | awk '{print $2}')
if [ "$TOTAL_PHYSICAL_MEM" -lt 490000 ]; then
if [ ! -d /vagrant ]; then
TOTAL_PHYSICAL_MEM=$(( TOTAL_PHYSICAL_MEM * 1024 / 1000 / 1000 ))
echo "Your Mail-in-a-Box needs more memory (RAM) to function properly."
echo "Please provision a machine with at least 512 MB, 1 GB recommended."
echo "This machine has $TOTAL_PHYSICAL_MEM MB memory."
exit
fi
fi
if [ "$TOTAL_PHYSICAL_MEM" -lt 750000 ]; then
echo "WARNING: Your Mail-in-a-Box has less than 768 MB of memory."
echo " It might run unreliably when under heavy load."
fi
# Check that tempfs is mounted with exec
MOUNTED_TMP_AS_NO_EXEC=$(grep "/tmp.*noexec" /proc/mounts || /bin/true)
if [ -n "$MOUNTED_TMP_AS_NO_EXEC" ]; then
echo "Mail-in-a-Box has to have exec rights on /tmp, please mount /tmp with exec"
exit
fi
# Check that no .wgetrc exists
if [ -e ~/.wgetrc ]; then
echo "Mail-in-a-Box expects no overrides to wget defaults, ~/.wgetrc exists"
exit
fi
# Check that we are running on x86_64 or i686 architecture, which are the only
# ones we support / test.
ARCHITECTURE=$(uname -m)
if [ "$ARCHITECTURE" != "x86_64" ] && [ "$ARCHITECTURE" != "i686" ]; then
echo
echo "WARNING:"
echo "Mail-in-a-Box has only been tested on x86_64 and i686 platform"
echo "architectures. Your architecture, $ARCHITECTURE, may not work."
echo "You are on your own."
echo
fi