code-server/scripts/cacher.sh

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#!/usr/bin/env sh
# cacher.sh -- Restore and rebuild cache.
# Cache paths are designed to work with multi-arch builds and are organized
# based on the branch or tag. The master branch cache is used as a fallback.
# This will download and package the cache but it will not upload it.
set -eu
# Try restoring from each argument in turn until we get something.
restore() {
for branch in "$@" ; do
if [ -n "$branch" ] ; then
cache_path="https://codesrv-ci.cdr.sh/cache/$branch/$tar.tar.gz"
if wget "$cache_path" ; then
tar xzvf "$tar.tar.gz"
break
fi
fi
done
}
# We need to cache the built-in extensions and Node modules. Everything inside
# the cache-upload directory will be uploaded as-is to the code-server bucket.
package() {
mkdir -p "cache-upload/cache/$1"
tar czfv "cache-upload/cache/$1/$tar.tar.gz" node_modules source
}
main() {
cd "$(dirname "$0")/.."
# Get the branch for this build.
branch=${DRONE_BRANCH:-${DRONE_SOURCE_BRANCH:-${DRONE_TAG:-}}}
# The cache will be named based on the arch, platform, and libc.
arch=$DRONE_STAGE_ARCH
platform=${PLATFORM:-linux}
case $DRONE_STAGE_NAME in
*alpine*) libc=musl ;;
* ) libc=glibc ;;
esac
tar="$platform-$arch-$libc"
# The action is determined by the name of the step.
case $DRONE_STEP_NAME in
*restore*) restore "$branch" "$DRONE_REPO_BRANCH" ;;
*rebuild*|*package*) package "$branch" ;;
*) exit 1 ;;
esac
}
main "$@"