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`vagrant` on `ubuntu-16.04` can get in conflict with *unattended-upgrade* running and locking the `dpkg` subsystem. this script waits gracefully
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| #!/usr/bin/env bash | |
| # https://gist.github.com/gretel/34008d667a8a243a9682e5207619ad95 | |
| # 2016 tom hensel <github@jitter.eu> | |
| # `vagrant` on `ubuntu-16.04` can get in conflict with *unattended-upgrade* running and locking the `dpkg` subsystem. this script waits gracefully | |
| # in `Vagrantfile`: | |
| # config.vm.provision 'Wait for unattended-upgrades', type: 'shell', path: './provisioning/wait_unattended_upgrades.sh', args: %w( dpkg apt unattended-upgrade ) | |
| # | |
| function wait_procnames { | |
| while true; do | |
| alive_pids=() | |
| for pname in "$@"; do | |
| if [ "$(pgrep "$pname")" ]; then | |
| alive_pids+=("$pname ") | |
| fi | |
| done | |
| if [ "${#alive_pids[@]}" -eq 0 ]; then | |
| break | |
| else | |
| printf "waiting for: %s\n" "${alive_pids[@]}" | |
| fi | |
| sleep 1 | |
| done | |
| } | |
| wait_procnames "$@" |
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