Provide a way to install aqua via powershell oneliner

[airtonix]

fixes #577
fixes aquaproj/aqua#2403

Allows installing aqua with either of two formats:

iwr https://raw.githubusercontent.com/aquaproj/aqua-installer/master/aqua-installer.ps1 | iex

or for specific version

& ([scriptblock]::Create((iwr https://raw.githubusercontent.com/aquaproj/aqua-installer/master/aqua-installer.ps1))) -param1 v2.2.0

[suzuki-shunsuke]

Thank you for your contribution!

[suzuki-shunsuke]

We'd like to do the same thing with aqua-installer for security.
aqua-installer does the checksum verification, verify checksum files and SLSA provenance.
aqua-installer achieves these things by

1. install a specific version of aqua for bootstrapping

aqua-installer/aqua-installer

Lines 54 to 86 in f058c3d

	bootstrap_version=v2.16.4
	checksums="34ad1e7f88e6fcc13f3bed2e7470ab570c4440aaa441e1b545cc514c571e9a2f aqua_darwin_arm64.tar.gz
	468c6c51f37196e6c21a096498eb4d3f7ba5cea3593b44af89087f571c207bc9 aqua_windows_amd64.tar.gz
	6c2b6165000f3f2c5f04bbb52c8fe97b686cfbaa80493d866ad6770400b1773e aqua_linux_arm64.tar.gz
	7457ea4870f953de17c68fe8f86b3243c14890aa94a05e713d3c22ef401968b2 aqua_linux_amd64.tar.gz
	c49f010e7e731ed62e7289169162001413f319cb593250a525aae26ee4551c3f aqua_darwin_amd64.tar.gz
	dcbc4c160827187504994a8f2ec4b5b7944a05da48b011de7a6cade9becd14e5 aqua_windows_arm64.tar.gz"
	filename=aqua_${OS}_${ARCH}.tar.gz
	URL=https://github.com/aquaproj/aqua/releases/download/$bootstrap_version/$filename
	tempdir=$(mktemp -d)
	echo "[INFO] Installing aqua $bootstrap_version for bootstrapping..." >&2
	echo "[INFO] Downloading $URL ..." >&2
	if command -v curl > /dev/null 2>&1; then
	curl --fail -L "$URL" -o "$tempdir/$filename"
	elif command -v wget > /dev/null 2>&1; then
	wget -P "$tempdir" "$URL"
	else
	echo "[ERROR] Neither curl nor wget is found. Please install either curl or wget to download aqua" >&2
	exit 1
	fi
	cd "$tempdir"
	echo "[INFO] Verifying checksum of aqua $bootstrap_version ..." >&2
	if command -v sha256sum > /dev/null 2>&1; then
	echo "$checksums" | grep "$filename" | sha256sum -c
	elif command -v shasum > /dev/null 2>&1; then
	echo "$checksums" | grep "$filename" | shasum -a 256 -c
	else
	echo "[WARN] Skipped checksum verification of aqua $bootstrap_version because both sha256sum and shasum commands aren't found" >&2
	fi

2. install aqua by aqua update-aqua command. aqua update-aqua does the checksum verification, verify checksum files and SLSA provenance

aqua-installer/aqua-installer

Lines 90 to 96 in f058c3d

	if [ -n "${version:-}" ]; then
	echo "[INFO] $tempdir/aqua update-aqua $version" >&2
	./aqua update-aqua "$version"
	else
	echo "[INFO] $tempdir/aqua update-aqua" >&2
	./aqua update-aqua
	fi

[suzuki-shunsuke]

Oh, I remembered aqua update-aqua has a known issue on Windows.

• aqua update-aqua failed on Windows aqua#2144
• https://github.com/orgs/aquaproj/discussions/2510#discussioncomment-7647449