update.sh

#!/bin/bash
set -e

declare -A aliases=(
  [5.6]='5'
  [7.4]='7'
  [8.0]='8 latest'
)

cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"

versions=("$@")
if [ ${#versions[@]} -eq 0 ]; then
  versions=(*/)
  # exclude vendor directory
  tmp=()
  for value in "${versions[@]}"; do
    if [ "$value" == "vendor/" ]; then continue; fi
    tmp+=($value)
  done
  versions=("${tmp[@]}")
  unset tmp
fi
versions=("${versions[@]%/}")

generated_warning() {
  cat <<-EOH
		#
		# NOTE: THIS DOCKERFILE IS GENERATED VIA "update.sh"
		#
		# PLEASE DO NOT EDIT IT DIRECTLY.
		#

	EOH
}

# Make version number comparable
vc() { echo "$@" | awk -F. '{ printf("%03d%03d%03d\n", $1,$2,$3); }'; }

# prints "$2$1$3$1...$N"
join() {
  local sep="$1"
  shift
  local out
  printf -v out "${sep//%/%%}%s" "$@"
  echo "${out#$sep}"
}

# Parameters: version, targetDir, tags...
copyFiles() {
  _version=$1
  _dir=$2

  cp -v \
    docker-php-entrypoint \
    docker-php-ext-* \
    docker-php-source \
    "$_dir/"
  if [ "$_dir" == "$_version/apache" ]; then
    cp -v apache2-foreground "$_dir/"
  fi

  # Patches
  mkdir -p "$_dir/patches"
  if [ $(vc $_version) -lt $(vc 5.3) ]; then
    cp -v libxml29_compat.patch "$_dir/patches/"
  else
    touch "$_dir/patches/.gitkeep"
  fi

  # Hooks
  shift 2
  echo "$@ ($#)"
  rm -rf "$_dir/hooks"
  if [ $# -gt 1 ]; then
    ALTERNATIVE_TAGS=$(join ',' "$@")
    mkdir -p "$_dir/hooks"
    cp -v post_push "$_dir/hooks/"
    sed -ri \
      -e 's!%%ALTERNATIVE_TAGS%%!'"$ALTERNATIVE_TAGS"'!' \
      "$_dir/hooks/post_push"
  fi
}

travisEnv=
for version in "${versions[@]}"; do
  rcVersion="${version%-rc}"

  fullVersion=$(vendor/bin/php-versions version "$rcVersion")
  basename=$(vendor/bin/php-versions download-url "$rcVersion" --format xz)
  url=$(vendor/bin/php-versions download-url "$rcVersion" --format xz --url)
  ascUrl=$(vendor/bin/php-versions download-url "$rcVersion" --format xz --asc --url)
  sha256=$(vendor/bin/php-versions hash "$rcVersion" --format xz --type sha256)
  md5=$(vendor/bin/php-versions hash "$rcVersion" --format xz --type md5)

  gpgKey=$(vendor/bin/php-versions gpg "$rcVersion")
  if [ -z "$gpgKey" ]; then
    gpgKey='""'
  fi

  # if we don't have a .asc URL, let's see if we can figure one out :)
  if [ -z "$ascUrl" ] && wget -q --spider "$url.asc"; then
    ascUrl="$url.asc"
  fi

  # Temporarily disable GPG check due to problems with keyserver response time
  ascUrl=

  dockerfiles=()

  {
    generated_warning
    cat Dockerfile-debian.template
  } >"$version/Dockerfile"

  versionAliases=(
    $version
    ${aliases[$version]:-}
  )

  variant='cli'
  variantAliases=("${versionAliases[@]/%/-$variant}")
  variantAliases=("${variantAliases[@]//latest-/}")
  variantAliases+=("${versionAliases[@]}")

  copyFiles "$version" "$version" "${variantAliases[@]}"
  dockerfiles+=("$version/Dockerfile")

  if [ -d "$version/alpine" ]; then
    {
      generated_warning
      cat Dockerfile-alpine.template
    } >"$version/alpine/Dockerfile"

    slash='/'
    variantAliases=("${versionAliases[@]/%/-alpine}")
    variantAliases=("${variantAliases[@]//latest-/}")

    copyFiles "$version" "$version/alpine" "${variantAliases[@]}"
    dockerfiles+=("$version/alpine/Dockerfile")
  fi

  for target in \
    apache \
    fpm fpm/alpine \
    zts zts/alpine; do
    [ -d "$version/$target" ] || continue
    base="$version/Dockerfile"
    variant="${target%%/*}"
    if [ "$target" != "$variant" ]; then
      variantVariant="${target#$variant/}"
      [ -d "$version/$variantVariant" ] || continue
      base="$version/$variantVariant/Dockerfile"
    fi
    echo "Generating $version/$target/Dockerfile from $base + $variant-Dockerfile-block-*"
    awk '
			$1 == "##</autogenerated>##" { ia = 0 }
			!ia { print }
			$1 == "##<autogenerated>##" { ia = 1; ab++; ac = 0 }
			ia { ac++ }
			ia && ac == 1 { system("cat '$variant'-Dockerfile-block-" ab) }
		' "$base" >"$version/$target/Dockerfile"

    slash='/'
    variantAliases=("${versionAliases[@]/%/-${target//$slash/-}}")
    variantAliases=("${variantAliases[@]//latest-/}")

    copyFiles "$version" "$version/$target" "${variantAliases[@]}"
    dockerfiles+=("$version/$target/Dockerfile")
  done

  (
    set -x
    sed -ri -e 's!%%PHP_VERSION%%!'"$fullVersion"'!' "${dockerfiles[@]}"
    sed -ri -e 's!%%GPG_KEYS%%!'"$gpgKey"'!' "${dockerfiles[@]}"
    sed -ri -e 's!%%PHP_FILE%%!'"$basename"'!' "${dockerfiles[@]}"
    sed -ri -e 's!%%PHP_URL%%!'"$url"'!' "${dockerfiles[@]}"
    sed -ri -e 's!%%PHP_ASC_URL%%!'"$ascUrl"'!' "${dockerfiles[@]}"
    sed -ri -e 's!%%PHP_SHA256%%!'"$sha256"'!' "${dockerfiles[@]}"
    sed -ri -e 's!%%PHP_MD5%%!'"$md5"'!' "${dockerfiles[@]}"
  )

  # update entrypoint commands
  for dockerfile in "${dockerfiles[@]}"; do
    cmd="$(awk '$1 == "CMD" { $1 = ""; print }' "$dockerfile" | tail -1 | jq --raw-output '.[0]')"
    entrypoint="$(dirname "$dockerfile")/docker-php-entrypoint"
    sed -i 's! php ! '"$cmd"' !g' "$entrypoint"
  done

  newTravisEnv=
  for dockerfile in "${dockerfiles[@]}"; do
    dir="${dockerfile%Dockerfile}"
    dir="${dir%/}"
    variant="${dir#$version}"
    variant="${variant#/}"
    newTravisEnv+='\n  - VERSION='"$version VARIANT=$variant"
  done
  travisEnv="$newTravisEnv$travisEnv"
done

travis="$(awk -v 'RS=\n\n' '$1 == "env:" { $0 = "env:'"$travisEnv"'" } { printf "%s%s", $0, RS }' .travis.yml)"
echo "$travis" >.travis.yml