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docker-library--ruby/update.sh
2019-10-30 12:03:53 +00:00

117 lines
3.8 KiB
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#!/usr/bin/env bash
set -Eeuo pipefail
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
versions=( "$@" )
if [ ${#versions[@]} -eq 0 ]; then
versions=( */ )
fi
versions=( "${versions[@]%/}" )
releasesPage="$(curl -fsSL 'https://www.ruby-lang.org/en/downloads/releases/')"
newsPage="$(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)
# TODO consider parsing https://github.com/ruby/www.ruby-lang.org/blob/master/_data/downloads.yml as well
latest_gem_version() {
curl -fsSL "https://rubygems.org/api/v1/gems/$1.json" | sed -r 's/^.*"version":"([^"]+)".*$/\1/'
}
# https://github.com/docker-library/ruby/issues/246
rubygems='3.0.3'
declare -A newEnoughRubygems=(
[2.6]=1 # 2.6.3 => gems 3.0.3 (https://github.com/ruby/ruby/blob/v2_6_3/lib/rubygems.rb#L12)
[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)
)
# TODO once all versions are in this family of "new enough", remove RUBYGEMS_VERSION code entirely
travisEnv=
for version in "${versions[@]}"; do
rcGrepV='-v'
rcVersion="${version%-rc}"
if [ "$rcVersion" != "$version" ]; then
rcGrepV=
fi
IFS=$'\n'; allVersions=( $(
curl -fsSL --compressed "https://cache.ruby-lang.org/pub/ruby/$rcVersion/" \
| grep -oE '["/]ruby-'"$rcVersion"'.[^"]+\.tar\.xz' \
| sed -r 's!^["/]ruby-([^"]+)[.]tar[.]xz!\1!' \
| grep $rcGrepV -E 'preview|rc' \
| sort -ruV
) ); unset IFS
fullVersion=
shaVal=
for tryVersion in "${allVersions[@]}"; do
if \
{
versionReleasePage="$(grep "<td>Ruby $tryVersion</td>" -A 2 <<<"$releasesPage" | awk -F '"' '$1 == "<td><a href=" { print $2; exit }')" \
&& [ "$versionReleasePage" ] \
&& shaVal="$(curl -fsSL "https://www.ruby-lang.org/$versionReleasePage" |tac|tac| grep "ruby-$tryVersion.tar.xz" -A 5 | awk '$1 == "SHA256:" { print $2; exit }')" \
&& [ "$shaVal" ]
} \
|| {
versionReleasePage="$(echo "$newsPage" | grep -oE '<a href="[^"]+">Ruby '"$tryVersion"' Released</a>' | cut -d'"' -f2)" \
&& [ "$versionReleasePage" ] \
&& shaVal="$(curl -fsSL "https://www.ruby-lang.org/$versionReleasePage" |tac|tac| grep "ruby-$tryVersion.tar.xz" -A 5 | awk '$1 == "SHA256:" { print $2; exit }')" \
&& [ "$shaVal" ]
} \
; then
fullVersion="$tryVersion"
break
fi
done
if [ -z "$fullVersion" ]; then
echo >&2 "warning: cannot determine sha for $version (tried all of ${allVersions[*]}); skipping"
continue
fi
echo "$version: $fullVersion; $shaVal"
for v in \
alpine{3.9,3.10} \
{stretch,buster}{/slim,} \
; do
dir="$version/$v"
variant="$(basename "$v")"
[ -d "$dir" ] || continue
case "$variant" in
slim|windowsservercore) template="$variant"; tag="$(basename "$(dirname "$dir")")" ;;
alpine*) template='alpine'; tag="${variant#alpine}" ;;
*) template='debian'; tag="$variant" ;;
esac
template="Dockerfile-${template}.template"
if [ "$variant" = 'slim' ]; then
tag+='-slim'
fi
sed -r \
-e 's!%%VERSION%%!'"$version"'!g' \
-e 's!%%FULL_VERSION%%!'"$fullVersion"'!g' \
-e 's!%%SHA256%%!'"$shaVal"'!g' \
-e 's!%%RUBYGEMS%%!'"$rubygems"'!g' \
-e 's/^(FROM (debian|buildpack-deps|alpine)):.*/\1:'"$tag"'/' \
"$template" > "$dir/Dockerfile"
case "$v" in
# https://packages.debian.org/sid/libgdbm-compat-dev (needed for "dbm" core module, but only in Buster+)
stretch/slim)
sed -i -e '/libgdbm-compat-dev/d' "$dir/Dockerfile"
;;
esac
if [ -n "${newEnoughRubygems[$rcVersion]:-}" ]; then
sed -ri -e '/RUBYGEMS_VERSION/d' "$dir/Dockerfile"
fi
travisEnv='\n - VERSION='"$version VARIANT=$v$travisEnv"
done
done
travis="$(awk -v 'RS=\n\n' '$1 == "env:" { $0 = "env:'"$travisEnv"'" } { printf "%s%s", $0, RS }' .travis.yml)"
echo "$travis" > .travis.yml