112 lines
3.6 KiB
Bash
Executable File
112 lines
3.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -Eeuo pipefail
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cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
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versions=( "$@" )
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if [ ${#versions[@]} -eq 0 ]; then
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versions=( */ )
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fi
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versions=( "${versions[@]%/}" )
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releasesPage="$(curl -fsSL 'https://www.ruby-lang.org/en/downloads/releases/')"
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newsPage="$(curl -fsSL 'https://www.ruby-lang.org/en/news/')" # occasionally, releases don't show up on the Releases page (see https://github.com/ruby/www.ruby-lang.org/blob/master/_data/releases.yml)
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# TODO consider parsing https://github.com/ruby/www.ruby-lang.org/blob/master/_data/downloads.yml as well
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latest_gem_version() {
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curl -fsSL "https://rubygems.org/api/v1/gems/$1.json" | sed -r 's/^.*"version":"([^"]+)".*$/\1/'
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}
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# https://github.com/docker-library/ruby/issues/246
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rubygems='3.0.3'
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declare -A newEnoughRubygems=(
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[2.6]=1 # 2.6.3 => gems 3.0.3 (https://github.com/ruby/ruby/blob/v2_6_3/lib/rubygems.rb#L12)
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[2.7]=1 # 2.7.0-preview2 => gems 3.1.0.pre1 (https://github.com/ruby/ruby/blob/v2_7_0_preview1/lib/rubygems.rb#L12)
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)
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# TODO once all versions are in this family of "new enough", remove RUBYGEMS_VERSION code entirely
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for version in "${versions[@]}"; do
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rcGrepV='-v'
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rcVersion="${version%-rc}"
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if [ "$rcVersion" != "$version" ]; then
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rcGrepV=
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fi
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IFS=$'\n'; allVersions=( $(
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curl -fsSL --compressed "https://cache.ruby-lang.org/pub/ruby/$rcVersion/" \
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| grep -oE '["/]ruby-'"$rcVersion"'.[^"]+\.tar\.xz' \
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| sed -r 's!^["/]ruby-([^"]+)[.]tar[.]xz!\1!' \
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| grep $rcGrepV -E 'preview|rc' \
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| sort -ruV
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) ); unset IFS
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fullVersion=
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shaVal=
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for tryVersion in "${allVersions[@]}"; do
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if \
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{
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versionReleasePage="$(grep "<td>Ruby $tryVersion</td>" -A 2 <<<"$releasesPage" | awk -F '"' '$1 == "<td><a href=" { print $2; exit }')" \
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&& [ "$versionReleasePage" ] \
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&& shaVal="$(curl -fsSL "https://www.ruby-lang.org/$versionReleasePage" |tac|tac| grep "ruby-$tryVersion.tar.xz" -A 5 | awk '$1 == "SHA256:" { print $2; exit }')" \
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&& [ "$shaVal" ]
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} \
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|| {
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versionReleasePage="$(echo "$newsPage" | grep -oE '<a href="[^"]+">Ruby '"$tryVersion"' Released</a>' | cut -d'"' -f2)" \
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&& [ "$versionReleasePage" ] \
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&& shaVal="$(curl -fsSL "https://www.ruby-lang.org/$versionReleasePage" |tac|tac| grep "ruby-$tryVersion.tar.xz" -A 5 | awk '$1 == "SHA256:" { print $2; exit }')" \
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&& [ "$shaVal" ]
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} \
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; then
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fullVersion="$tryVersion"
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break
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fi
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done
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if [ -z "$fullVersion" ]; then
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echo >&2 "warning: cannot determine sha for $version (tried all of ${allVersions[*]}); skipping"
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continue
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fi
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echo "$version: $fullVersion; $shaVal"
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for v in \
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alpine{3.10,3.11} \
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{stretch,buster}{/slim,} \
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; do
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dir="$version/$v"
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variant="$(basename "$v")"
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[ -d "$dir" ] || continue
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case "$variant" in
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slim|windowsservercore) template="$variant"; tag="$(basename "$(dirname "$dir")")" ;;
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alpine*) template='alpine'; tag="${variant#alpine}" ;;
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*) template='debian'; tag="$variant" ;;
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esac
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template="Dockerfile-${template}.template"
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if [ "$variant" = 'slim' ]; then
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tag+='-slim'
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fi
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sed -r \
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-e 's!%%VERSION%%!'"$version"'!g' \
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-e 's!%%FULL_VERSION%%!'"$fullVersion"'!g' \
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-e 's!%%SHA256%%!'"$shaVal"'!g' \
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-e 's!%%RUBYGEMS%%!'"$rubygems"'!g' \
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-e 's/^(FROM (debian|buildpack-deps|alpine)):.*/\1:'"$tag"'/' \
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"$template" > "$dir/Dockerfile"
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case "$v" in
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# https://packages.debian.org/sid/libgdbm-compat-dev (needed for "dbm" core module, but only in Buster+)
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stretch/slim)
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sed -i -e '/libgdbm-compat-dev/d' "$dir/Dockerfile"
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;;
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esac
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if [ -n "${newEnoughRubygems[$rcVersion]:-}" ]; then
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sed -ri -e '/RUBYGEMS_VERSION/d' "$dir/Dockerfile"
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fi
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done
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done
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