mirror of
https://codeberg.org/privacy1st/arch-installer
synced 2024-12-23 02:16:05 +01:00
84 lines
2.3 KiB
Bash
84 lines
2.3 KiB
Bash
function join_by() {
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# Join array elements with character $1
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#
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# arg $1: Delimiter
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# arg $2: Name of source array
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# arg $3: Variable name to store result
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local -n ptr=$2 || return $?
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local -n ptr2=$3 || return $?
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ptr2=$(printf ',%s' "${ptr[@]}")
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ptr2=${ptr2:1}
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}
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function newline_to_space() {
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# Replaces all newlines with spaces
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#
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# arg $1: Name of variable
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local -n ptr=$1 || return $?
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# Replace newlines with spaces.
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# See bash string substitution: https://gist.github.com/JPvRiel/b279524d3e56229a896477cb8082a72b
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# echo "replacing newlines in str: -->$ptr<--"
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ptr="${ptr//$'\n'/' '}"
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# echo "new str is: -->$ptr<--"
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}
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function newline_separated_to_array() {
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# Watch out for tailing newlines as these will get an empty array entry at the end.
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# $1 and $2 can be equal (if the result shall be written to the input variable).
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#
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# arg $1: Name of variable with newline separated list
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# arg $2: Name of array to store values into
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local -n ptr=$1 || return $?
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local -n ptr2=$2 || return $?
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# ptr newline separated list.
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# Store this as array ptr2.
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readarray -t ptr2 <<<"${ptr}"
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}
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function space_separated_to_array() {
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# arg $1: Name of variable with space separated list
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# arg $2: Name of array to store values into
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local -n ptr=$1 || return $?
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# shellcheck disable=SC2178
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local -n ptr2=$2 || return $?
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# ptr space separated list.
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# Store this as array ptr2.
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# Without newline at last array element: https://unix.stackexchange.com/a/519917/315162
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readarray -d ' ' -t ptr2 < <(printf '%s' "${ptr}")
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}
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function get_cpu_vendor() {
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# @pre
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# CPU_VENDOR ("", "autodetect")
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# @post
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# CPU_VENDOR ("amd", "intel", "none", "")
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if [[ -z "${CPU_VENDOR}" ]] || [[ "${CPU_VENDOR}" == 'autodetect' ]]; then
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# If run virtual environment (e.g. VirtualBox) then no CPU microcode is required.
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if grep '^flags.*hypervisor' /proc/cpuinfo >/dev/null; then
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echo 'Detected virtual environment.'
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CPU_VENDOR='none'
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else
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local vendor_id
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vendor_id=$(grep vendor_id /proc/cpuinfo | head -1 | sed 's|vendor_id\s*:\s*||')
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if [ "${vendor_id}" = 'AuthenticAMD' ]; then
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CPU_VENDOR='amd'
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elif [ "${vendor_id}" = 'GenuineIntel' ]; then
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CPU_VENDOR='intel'
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else
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echo 'Unknown CPU vendor'
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return 1
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fi
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fi
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fi
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}
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