diff options
| -rw-r--r-- | scripts/install.in | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/scripts/install.in b/scripts/install.in new file mode 100644 index 000000000000..32cd2494225b --- /dev/null +++ b/scripts/install.in @@ -0,0 +1,67 @@ +#!/bin/sh + +# This script installs the Nix package manager on your system by +# downloading a binary distribution and running its installer script +# (which in turn creates and populates /nix). + +{ # Prevent execution if this script was only partially downloaded +oops() { + echo "$0:" "$@" >&2 + exit 1 +} + +tmpDir="$(mktemp -d -t nix-binary-tarball-unpack.XXXXXXXXXX || \ + oops "Can\'t create temporary directory for downloading the Nix binary tarball")" +cleanup() { + rm -rf "$tmpDir" +} +trap cleanup EXIT INT QUIT TERM + +require_util() { + type "$1" > /dev/null 2>&1 || which "$1" > /dev/null 2>&1 || + oops "you do not have '$1' installed, which I need to $2" +} + +case "$(uname -s).$(uname -m)" in + Linux.x86_64) system=x86_64-linux; hash=[%nix_hash_x86_64_linux%];; + Linux.i?86) system=i686-linux; hash=[%nix_hash_i686_linux%];; + Linux.aarch64) system=aarch64-linux; hash=[%nix_hash_aarch64_linux%];; + Darwin.x86_64) system=x86_64-darwin; hash=[%nix_hash_x86_64_darwin%];; + *) oops "sorry, there is no binary distribution of Nix for your platform";; +esac + +url="https://nixos.org/releases/nix/nix-[%latestNixVersion%]/nix-[%latestNixVersion%]-$system.tar.bz2" + +tarball="$tmpDir/$(basename "$tmpDir/nix-[%latestNixVersion%]-$system.tar.bz2")" + +require_util curl "download the binary tarball" +require_util bzcat "decompress the binary tarball" +require_util tar "unpack the binary tarball" + +echo "downloading Nix [%latestNixVersion%] binary tarball for $system from '$url' to '$tmpDir'..." +curl -L "$url" -o "$tarball" || oops "failed to download '$url'" + +if type sha256sum > /dev/null 2>&1; then + hash2="$(sha256sum -b "$tarball" | cut -c1-64)" +elif type shasum > /dev/null 2>&1; then + hash2="$(shasum -a 256 -b "$tarball" | cut -c1-64)" +elif type openssl > /dev/null 2>&1; then + hash2="$(openssl dgst -r -sha256 "$tarball" | cut -c1-64)" +else + oops "cannot verify the SHA-256 hash of '$url'; you need one of 'shasum', 'sha256sum', or 'openssl'" +fi + +if [ "$hash" != "$hash2" ]; then + oops "SHA-256 hash mismatch in '$url'; expected $hash, got $hash2" +fi + +unpack=$tmpDir/unpack +mkdir -p "$unpack" +< "$tarball" bzcat | tar -xf - -C "$unpack" || oops "failed to unpack '$url'" + +script=$(echo "$unpack"/*/install) + +[ -e "$script" ] || oops "installation script is missing from the binary tarball!" +"$script" "$@" + +} # End of wrapping |