uppy/bin/update-yarn.sh

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#!/usr/bin/env bash
# This script is meant to be run on a dev's machine to update the version on
# Yarn used by the monorepo. Its goal is to make sure that every mention of Yarn
# version is updated, and it re-installs the plugins to make sure those are
# up-to-date as well.
set -o pipefail
set -o errexit
set -o nounset
CURRENT_VERSION=$(corepack yarn --version)
LAST_VERSION=$(curl \
-H "Accept: application/vnd.github.v3+json" \
https://api.github.com/repos/yarnpkg/berry/releases?per_page=1 | \
awk '{ if ($1 == "\"tag_name\":") print $2 }' | \
sed 's#^"@yarnpkg/cli/##;s#",$##')
[ "$CURRENT_VERSION" = "$LAST_VERSION" ] && \
echo "Already using latest version." && \
exit 0
echo "Upgrading to Yarn $LAST_VERSION (from Yarn $CURRENT_VERSION)..."
PLUGINS=$(awk '{ if ($1 == "spec:") print $2 }' .yarnrc.yml)
echo "$PLUGINS" | xargs -n1 -t corepack yarn plugin remove
cp package.json .yarn/cache/tmp.package.json
sed "s#\"yarn\": \"$CURRENT_VERSION\"#\"yarn\": \"$LAST_VERSION\"#;s#\"yarn@$CURRENT_VERSION\"#\"yarn@$LAST_VERSION\"#" .yarn/cache/tmp.package.json > package.json
rm .yarn/cache/tmp.package.json
echo "$PLUGINS" | xargs -n1 -t corepack yarn plugin import
corepack yarn
git add package.json yarn.lock
git add .yarn/plugins