opencv4nodejs-webcam/setup.sh

#!/bin/sh

set -e
set -o pipefail

scheme="$1"

retry() {
  retries=$1
  shift

  count=0
  until "$@"; do
    exit=$?
    wait="$(echo "2^$count" | bc)"
    count="$(echo "$count + 1" | bc)"
    if [ "$count" -lt "$retries" ]; then
      echo "Retry $count/$retries exited $exit, retrying in $wait seconds..."
      sleep "$wait"
    else
      echo "Retry $count/$retries exited $exit, no more retries left."
      return "$exit"
    fi
  done
}

# --------custom repos -------
#  alpine edit 4 ubuntu
#cp /root/repositories /etc/apk/repositories

echo "==> Install system packages"
apk --no-cache add \
  bash \
  gnupg \
  graphviz \
  py-pygments \
  python2 \
  python3 \
  tar \
  ttf-freefont \
  wget \
  make \
  xz

# Dependencies needed by latexindent
apk --no-cache add \
  git \
  libc-dev  \
  linux-headers
apk --no-cache \
  --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing \
  add \
  perl-file-homedir

#echo "==> Install TeXLive"

extrap=/root/extrapackages
if [ -f $extrap ]; then

while read -r line; do
extrapackages="$extrapackages $line"
done < $extrap

apk --no-cache add $extrapackages

else
        echo "No extrapackages file"
fi

echo "==> Update packages"
#npm install -g npm@8.1.3

echo "==> Clean up"
rm -rf \
  /root/.gnupg \
  /setup.sh \
  /extrapackages