From 7586161a63bf11e4b6224c1662b09f7820aba517 Mon Sep 17 00:00:00 2001
From: Adam Wolfe Gordon <awg@upbound.io>
Date: Fri, 29 May 2026 09:50:32 -0600
Subject: [PATCH] Add the install.sh script and upload it to S3

Copy the install.sh script over from c/c, since its source of truth should
probably be this repository. Update CI to push the script to our S3 bucket, so
that if we update it in the future it automatically ends up there.

Signed-off-by: Adam Wolfe Gordon <awg@upbound.io>
---
 install.sh   | 127 +++++++++++++++++++++++++++++++++++++++++++++++++++
 nix/apps.nix |   5 ++
 2 files changed, 132 insertions(+)
 create mode 100755 install.sh

diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..46708ac
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,127 @@
+#!/bin/sh
+
+set -eu
+
+XP_CHANNEL=${XP_CHANNEL:-stable}
+XP_VERSION=${XP_VERSION:-current}
+
+os=$(uname -s)
+arch=$(uname -m)
+OS=${OS:-"${os}"}
+ARCH=${ARCH:-"${arch}"}
+OS_ARCH=""
+COMPRESSED=${COMPRESSED:-"False"}
+
+BIN=${BIN:-crossplane}
+
+# v2.3.0 was the first release from the crossplane/cli repository, whose
+# artifacts go to the cli.crossplane.io bucket and uses the binary name
+# "crossplane". Use the old releases.crossplane.io hostname and "crank" binary
+# for older releases.
+
+url_host="cli.crossplane.io"
+bundle_name="crossplane-cli.tar.gz"
+
+if [ "${XP_VERSION}" != "current" ]; then
+	_ver=$(echo "${XP_VERSION}" | sed 's/^v//' | sed 's/-.*//')
+	_major=$(echo "${_ver}" | cut -d. -f1)
+	_minor=$(echo "${_ver}" | cut -d. -f2)
+
+	if [ "${_major}" -lt 2 ] 2>/dev/null ||
+		{ [ "${_major}" -eq 2 ] 2>/dev/null && [ "${_minor}" -lt 3 ] 2>/dev/null; }; then
+
+		url_host="releases.crossplane.io"
+		bundle_name="crank.tar.gz"
+		BIN="crank"
+	fi
+fi
+
+unsupported_arch() {
+	os="$1"
+	arch="$2"
+	echo "Crossplane does not support $os / $arch at this time."
+	exit 1
+}
+
+case $OS in
+CYGWIN* | MINGW64* | Windows*)
+	if [ "$ARCH" = "x86_64" ]; then
+		OS_ARCH=windows_amd64
+		BIN="${BIN}.exe"
+	else
+		unsupported_arch "$OS" "$ARCH"
+	fi
+	;;
+Darwin)
+	case $ARCH in
+	x86_64 | amd64)
+		OS_ARCH=darwin_amd64
+		;;
+	arm64)
+		OS_ARCH=darwin_arm64
+		;;
+	*)
+		unsupported_arch "$OS" "$ARCH"
+		;;
+	esac
+	;;
+Linux)
+	case $ARCH in
+	x86_64 | amd64)
+		OS_ARCH=linux_amd64
+		;;
+	arm64 | aarch64)
+		OS_ARCH=linux_arm64
+		;;
+	*)
+		unsupported_arch "$OS" "$ARCH"
+		;;
+	esac
+	;;
+*)
+	unsupported_arch "$OS" "$ARCH"
+	;;
+esac
+
+_compr=$(echo "$COMPRESSED" | tr '[:upper:]' '[:lower:]')
+
+if [ "${_compr}" = "true" ]; then
+	url_dir="bundle"
+	url_file="${bundle_name}"
+	url_error="a compressed file for "
+else
+	url_dir="bin"
+	url_file="${BIN}"
+	url_error=""
+fi
+
+url="https://${url_host}/${XP_CHANNEL}/${XP_VERSION}/${url_dir}/${OS_ARCH}/${url_file}"
+
+if ! curl -sfL "${url}" -o "${url_file}"; then
+	echo "Failed to download Crossplane CLI. Please make sure ${url_error}version ${XP_VERSION} exists on channel ${XP_CHANNEL}."
+	exit 1
+fi
+
+if [ "${_compr}" = "true" ]; then
+	if ! tar xzf "${url_file}"; then
+		echo "Failed to unpack the Crossplane CLI compressed file."
+		exit 1
+	fi
+	rm "${BIN}.sha256" "${url_file}"
+fi
+if [ "${BIN}" != "crossplane" ]; then
+	if ! mv "${BIN}" crossplane; then
+		echo "Failed to rename the Crossplane CLI binary: \"${BIN}\"."
+		exit 1
+	fi
+fi
+
+chmod +x crossplane
+
+echo "crossplane CLI downloaded successfully! Run the following commands to finish installing it:"
+echo
+echo sudo mv crossplane /usr/local/bin
+echo crossplane --help
+echo
+echo "Visit https://crossplane.io to get started. 🚀"
+printf "Have a nice day! 👋\n"
diff --git a/nix/apps.nix b/nix/apps.nix
index a43af73..1643e30 100644
--- a/nix/apps.nix
+++ b/nix/apps.nix
@@ -187,6 +187,11 @@
             aws s3 sync --delete --only-show-errors "''${BUILD_PATH}" "''${CHANNEL_PATH}/current"
           fi
 
+          if [ "''${BRANCH}" == "main" ]; then
+            echo "Uploading install.sh..."
+            aws s3 cp --only-show-errors install.sh "s3://crossplane-cli-releases/"
+          fi
+
           echo "Done"
         '';
       }