129 lines
4.7 KiB
Bash
Executable File
129 lines
4.7 KiB
Bash
Executable File
#!/bin/bash
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# require go-yq
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command -v go-yq >/dev/null 2>&1 || {
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printf >&2 "%s\n" "❌ go-yq (https://github.com/mikefarah/yq) is not installed. Aborting."
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exit 1
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}
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# define defaults
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cache_path=${cache_path:-./tgz_cache}
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charts_path=${charts_path:-./charts}
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# Do NOT persist this directory, in order to always have the latest index for this run.
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index_cache=${index_cache:-./index_cache}
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mkdir -p "$cache_path"
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trains=(
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"enterprise"
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"stable"
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"incubator"
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"dependency"
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)
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download_deps() {
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local train_chart="$1"
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# Extract dependencies for the Chart
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deps=$(go-yq '.dependencies' "$charts_path/$train_chart/Chart.yaml")
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# Find how many deps exist, so we can loop through them
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length=$(echo "$deps" | go-yq '. | length')
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echo "🤖🔨 Processing <$charts_path/$train_chart>... Dependencies: $length"
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echo ""
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for idx in $(eval echo "{0..$length}"); do
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# Retrieve info for the dep in the current index..
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curr_dep=$(echo "$deps" | pos="$idx" go-yq '.[env(pos)]')
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if [ ! "$curr_dep" == null ]; then
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name=$(echo "$curr_dep" | go-yq '.name')
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version=$(echo "$curr_dep" | go-yq '.version')
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repo=$(echo "$curr_dep" | go-yq '.repository')
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# Remove http:// or https:// from url to create a dir name
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repo_dir="${repo#http://}"
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repo_dir="${repo#https://}"
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echo "**********"
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echo "🔗 Dependency: $name"
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echo "🆚 Version: $version"
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echo "🏠 Repository: $repo"
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echo ""
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if [ -f "$cache_path/$repo_dir/$name-$version.tgz" ]; then
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echo "✅ Dependency exists in cache..."
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else
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echo "🤷♂️ Dependency does not exists in cache..."
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repo_url="$repo/index.yaml"
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if [ -f "$index_cache/$repo_dir/index.yaml" ]; then
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echo "✅ Index for <$repo> exists!"
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else
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echo "⏬ Index for <$repo> is missing. Downloading from <$repo_url>..."
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mkdir -p $index_cache/$repo_dir
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wget --quiet "$repo_url" -O "$index_cache/$repo_dir/index.yaml"
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if [ ! $? ]; then
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echo "❌ wget encountered an error..."
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exit 1
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fi
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if [ -f "$index_cache/$repo_dir/index.yaml" ]; then
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echo "✅ Downloaded index for <$repo>!"
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else
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echo "❌ Failed to download index for <$repo> from <$repo_url>"
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exit 1
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fi
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fi
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# At the time of writing this, only 1 url existed (.urls[0]) pointing to the actual tgz.
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# Extract url from repo_url. It's under .entries.DEP_NAME.urls. We filter the specific version first (.version)
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dep_url=$(v="$version" n="$name" go-yq '.entries.[env(n)].[] | select (.version == env(v)) | .urls.[0]' "$index_cache/$repo_dir/index.yaml")
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echo ""
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echo "⏬ Downloading dependency $name-$version from $dep_url..."
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mkdir -p "$cache_path/$repo_dir"
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wget --quiet "$dep_url" -P "$cache_path/$repo_dir"
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if [ ! $? ]; then
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echo "❌ wget encountered an error..."
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helm dependency build "$charts_path/$train_chart/Chart.yaml" || helm dependency update "$charts_path/$train_chart/Chart.yaml" || exit 1
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fi
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if [ -f "$cache_path/$repo_dir/$name-$version.tgz" ]; then
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echo "✅ Dependency Downloaded!"
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else
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echo "❌ Failed to download dependency"
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# Try helm dependency build/update or otherwise fail fast if a dep fails to download...
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helm dependency build "$charts_path/$train_chart/Chart.yaml" || helm dependency update "$charts_path/$train_chart/Chart.yaml" || exit 1
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fi
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fi
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echo ""
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mkdir -p "$charts_path/$train_chart/charts"
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echo "📝 Copying dependency <$name-$version.tgz> to <$charts_path/$train_chart/charts>..."
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cp "$cache_path/$repo_dir/$name-$version.tgz" "$charts_path/$train_chart/charts"
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if [ -f "$charts_path/$train_chart/charts/$name-$version.tgz" ]; then
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echo "✅ Dependency copied!"
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echo ""
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else
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echo "❌ Failed to copy dependency"
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# Try helm dependency build/update or otherwise fail fast if a dep fails to copy...
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helm dependency build "$charts_path/$train_chart/Chart.yaml" || helm dependency update "$charts_path/$train_chart/Chart.yaml" || exit 1
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fi
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fi
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done
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}
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export -f download_deps
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if [ -z "$1" ]; then
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for train in "${trains[@]}"; do
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for chart in $(ls "$charts_path/$train"); do
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download_deps "${train}/${chart}"
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done
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done
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else
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download_deps "$1"
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fi
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