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move example hosts and overwrite to /example/, misc

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Niklas Gollenstede
2024-08-28 13:12:07 +02:00
parent 95aa261987
commit c8addc3f98
15 changed files with 69 additions and 53 deletions
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13
lib/setup-scripts/utils.sh
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@ -45,6 +45,12 @@ function prompt-new-password {( set -u # 1: usage
if [[ "$password1" != "$password2" ]] ; then printf 'Passwords mismatch.\n' 1>&2 ; \exit 1 ; fi
printf %s "$password1" || exit
)}
function prompt-new-password-thrice {
local attempt ; for attempt in 2 3 x ; do
if userPasswords[$user]=$( prompt-new-password "$@" ) ; then break ; fi
if [[ $attempt == x ]] ; then \return 1 ; fi ; echo "Retrying ($attempt/3):"
done
}
## If »secretFile« does not exist, interactively prompts up to three times for the secret to be stored in that file.
declare-flag '*' no-optional-prompts "" "Skip prompting for (and thus saving) secret marked as optional."
@ -67,16 +73,15 @@ function prompt-secret-as {( set -u # 1: what, 2: secretFile, 3?: owner[:[group]
declare-flag install-system inspectScripts "" "When running installation hooks (»...*Commands« composed as Nix strings) print out and pause before each command. This works ... semi-well."
## Runs an installer hook script, optionally stepping through the script.
function run-hook-script {( # 1: title, 2: scriptPath
trap - EXIT # start with empty traps for sub-shell
function run-hook-script { # 1: title, 2: scriptPath
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:" 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
set -e # The called script snippets should not rely on this, but neither should this function rely on the scripts correctly exiting on errors.
source "$2"
)}
set +o functrace ; trap - debug
}
## Lazily builds a nix derivation at run time, instead of when building the script.
# When maybe-using packages that take long to build, instead of »at{some.package.out}«, use: »$( build-lazy at{some.package.drvPath!unsafeDiscardStringContext} out )«