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add hardware config for Raspberry PIs, start making scripts more robust, improve compatibility with containers

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Niklas Gollenstede
2022-11-30 13:41:21 +01:00
parent 1d93a8acc0
commit df8c451050
27 changed files with 524 additions and 246 deletions
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21
lib/setup-scripts/utils.sh
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@ -74,29 +74,28 @@ function copy-function { # 1: existingName, 2: newName
}
## Writes a »$name«d secret from stdin to »$targetDir«, ensuring proper file permissions.
function write-secret {( set -eu # 1: path, 2?: owner[:[group]], 3?: mode
mkdir -p -- "$(dirname "$1")"/
install -o root -g root -m 000 -T /dev/null "$1"
function write-secret {( set -u # 1: path, 2?: owner[:[group]], 3?: mode
mkdir -p -- "$(dirname "$1")"/ || exit
install -o root -g root -m 000 -T /dev/null "$1" || exit
secret=$(tee "$1") # copy stdin to path without removing or adding anything
if [[ "${#secret}" == 0 ]] ; then echo "write-secret to $1 was empty!" 1>&2 ; exit 1 ; fi # could also stat the file ...
chown "${2:-root:root}" -- "$1"
chmod "${3:-400}" -- "$1"
chown "${2:-root:root}" -- "$1" || exit
chmod "${3:-400}" -- "$1" || exit
)}
## Interactively prompts for a password to be entered and confirmed.
function prompt-new-password {( set -eu # 1: usage
usage=$1
read -s -p "Please enter the new password $usage: " password1 ; echo 1>&2
read -s -p "Please enter the same password again: " password2 ; echo 1>&2
function prompt-new-password {( set -u # 1: usage
read -s -p "Please enter the new password $1: " password1 || exit ; echo 1>&2
read -s -p "Please enter the same password again: " password2 || exit ; echo 1>&2
if (( ${#password1} == 0 )) || [[ "$password1" != "$password2" ]] ; then printf 'Passwords empty or mismatch, aborting.\n' 1>&2 ; exit 1 ; fi
printf %s "$password1"
printf %s "$password1" || exit
)}
## Runs an installer hook script, optionally stepping through the script.
function run-hook-script {( set -eu # 1: title, 2: scriptPath
trap - EXIT # start with empty traps for sub-shell
if [[ ${args[inspectScripts]:-} && "$(cat "$2")" != $'' ]] ; then
echo "Running $1 commands. For each command printed, press Enter to continue or Ctrl+C to abort the installation:"
echo "Running $1 commands. For each command printed, press Enter to continue or Ctrl+C to abort the installation:" 1>&2
# (this does not help against intentionally malicious scripts, it's quite easy to trick this)
BASH_PREV_COMMAND= ; set -o functrace ; trap 'if [[ $BASH_COMMAND != "$BASH_PREV_COMMAND" ]] ; then echo -n "> $BASH_COMMAND" >&2 ; read ; fi ; BASH_PREV_COMMAND=$BASH_COMMAND' debug
fi