xin/common.sh

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. /etc/profile
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. /run/secrets/po_env
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SCRIPT_NAME="${0##*/}"
SCRIPT_PID=$$
LOCK_PATH="${LOCK:-/tmp/xin}"
LOCK_FILE="${LOCK_PATH}/${SCRIPT_NAME}"
mkdir -p "${LOCK_PATH}"
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NIX_SSHOPTS="-i /run/secrets/manager_pubkey -oIdentitiesOnly=yes -oControlPath=/tmp/manager-ssh-%r@%h:%p -F/dev/null"
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SSH="ssh ${NIX_SSHOPTS}"
CurrentVersion="$(git rev-parse HEAD)"
AgentKeys="$(ssh-add -L | awk '{print $2}')"
RunHost="$(uname -n)"
msg() {
echo -e "===> $@"
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}
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unlock() {
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rm -f ${LOCK_FILE}
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}
_lock() {
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echo "${SCRIPT_PID}" >"${LOCK_FILE}"
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trap 'unlock' INT EXIT TERM
}
lock() {
if [ -f "${LOCK_FILE}" ]; then
msg "${SCRIPT_NAME} already running..."
exit 0
else
_lock
fi
}
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listNixOSHosts() {
for i in $(nix eval .#nixosConfigurations --apply builtins.attrNames --json | jq -r '.[]'); do
if [ -d hosts/${i} ]; then
echo $i
fi
done
}
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resolveAlias() {
host="${1}"
if [ -f hosts/${host}/alias ]; then
cat "hosts/${host}/alias"
return
fi
echo "$host"
}
agentHasKey() {
checkKey="$(echo $1 | awk '{print $NF}')"
for i in $AgentKeys; do
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if [[ $i == $checkKey ]]; then
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return 0
fi
done
return 1
}
isRunHost() {
if [ "$1" = "$RunHost" ]; then
return 0
fi
return 1
}
tsAlive() {
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ping -4 -c 1 -w 2 $1 >/dev/null 2>&1 && return 0
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tailscale ping --timeout 2s --c 1 --until-direct=false $1 >/dev/null 2>&1 && return 0
return 1
}
error() {
msg "Something went wrong!"
exit 1
}
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ci_error() {
git reset --hard HEAD
git clean -fd
git checkout main
}
_po() {
po -title "$1" -body "$2"
}
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po_error() {
po -title "$1" -body "$2"
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ci_error
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}
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start() {
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agentHasKey "$(cat /run/secrets/manager_pubkey | awk '{print $2}')" ||
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ssh-add -t 500 /run/secrets/manager_key
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}
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start_ci() {
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lock
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agentHasKey "$(cat /run/secrets/ci_ed25519_pub | awk '{print $2}')" ||
ssh-add /run/secrets/ci_ed25519_key
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agentHasKey "$(cat /run/secrets/ci_signing_ed25519_pub | awk '{print $2}')" ||
ssh-add /run/secrets/ci_signing_ed25519_key
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}
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finish() {
ssh-add -d /run/secrets/manager_key
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exit 0
}
finish_ci() {
ssh-add -d /run/secrets/ci_ed25519_key
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ssh-add -d /run/secrets/ci_signing_ed25519_key
pkill ssh-agent # TODO: https://github.com/systemd/systemd/pull/28035
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exit 0
}
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get_journal() {
journalctl -u "$1" -n 50 --no-pager
}
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handle_pull_fail() {
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po_error "CI: git pull failed!" "$(get_journal xin-ci-update)"
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}
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handle_co_fail() {
_po "CI: git checkout ($1) failed!" "Please help!"
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}
handle_update_fail() {
_po "CI: input '$1' update failed!" "$(get_journal xin-ci-update)"
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}
handle_check_fail() {
po_error "CI: checks failed!" "$(get_journal xin-ci)"
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}
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handle_update_check_fail() {
_po "CI: checks for $1 failed!" "$(get_journal xin-ci-update)"
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}
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handle_merge_fail() {
_po "CI: git merge ('$1' into '$2') failed!" "$(get_journal xin-ci-update)"
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}
handle_push_fail() {
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po_error "CI: git push failed!" "$(get_journal xin-ci-update)"
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}