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56 lines
1.5 KiB
Bash
56 lines
1.5 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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# args: vagrant/kubernetes/Vagrantfile
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#
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# Author: Hari Sekhon
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# Date: 2020-08-23 23:08:43 +0100 (Sun, 23 Aug 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090,SC1091
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Calculates the total combined RAM in MB allocated to all VMs in one or more Vagrantfiles
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Accepts one or more Vagrantfiles as arguments, otherwise tries to read \$PWD/Vagrantfile or /vagrant/Vagrantfile for convenience
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Tested on vagrant/kubernetes/Vagrantfile in this repo
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<Vagrantfile>"
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help_usage "$@"
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if [ $# -gt 0 ]; then
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Vagrantfiles=("$@")
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elif [ -f Vagrantfile ]; then
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Vagrantfiles=(Vagrantfile)
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elif [ -f /vagrant/Vagrantfile ]; then
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# auto-detect when running inside a Vagrant VM
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Vagrantfiles=(/vagrant/Vagrantfile)
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else
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usage "Vagrantfile not specified and no Vagrantfile found in \$PWD or /vagrant/"
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fi
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grep -E '^[^#]+\.memory' "${Vagrantfiles[@]}" |
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sed 's/.*=[[:space:]]*//' |
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grep -E '^[[:digit:]]+(\.[[:digit:]]+)?$' |
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tr '\n' '+' |
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sed 's/+$//' |
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bc -l
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