storebound/tools/ci-install-bun.sh

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#!/usr/bin/env bash
# Installs bun $1 (or $BUN_VERSION) into ~/.bun/bin on a Linux CI runner from the npm registry (@oven/bun-linux-<arch>),
# because GitHub's oven-sh/bun release assets answer 504 now and then; bun.sh/install with retries is the fallback.
set -u
V="${1:-${BUN_VERSION:?BUN_VERSION}}"
case "$(uname -m)" in aarch64|arm64) A=aarch64 ;; *) A=x64 ;; esac
D="$HOME/.bun/bin"; mkdir -p "$D"; T=$(mktemp -d)
for i in 1 2 3; do
if curl -fsSL --max-time 120 "https://registry.npmjs.org/@oven/bun-linux-$A/-/bun-linux-$A-$V.tgz" | tar -xz -C "$T" \
&& install -m 755 "$T/package/bin/bun" "$D/bun"; then ln -sf bun "$D/bunx"; "$D/bun" --version; exit 0; fi
sleep 10
done
for i in 1 2 3; do curl -fsSL https://bun.sh/install | bash -s "bun-v$V" >/dev/null && { "$D/bun" --version; exit 0; }; sleep 20; done
echo "bun $V: npm registry and GitHub both failed" >&2; exit 1