mirror of
https://github.com/nix-community/nix-on-droid.git
synced 2025-11-08 11:36:07 +01:00
164 lines
6.3 KiB
Nix
164 lines
6.3 KiB
Nix
# Copyright (c) 2019-2024, see AUTHORS. Licensed under MIT License, see LICENSE.
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{ config, lib, initialPackageInfo, writeText, targetSystem }:
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let
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inherit (initialPackageInfo) cacert nix;
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nixCmd = "${nix}/bin/nix --extra-experimental-features 'flakes nix-command'";
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userShell =
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if config.user.shell.type or "not-found" == "derivation" then
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if config.user.shell ? passthru.shellPath then
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"${config.user.shell}${config.user.shell.passthru.shellPath}"
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else builtins.abort "Derivation without shell path found at `user.shell`. Use the path to the exact binary."
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else config.user.shell;
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in
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writeText "login-inner" ''
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# This file is generated by Nix-on-Droid. DO NOT EDIT.
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set -eo pipefail
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${lib.optionalString (config.environment.motd != null) ''
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if [ "$#" -eq 0 ]; then # if script is called from within Nix-on-Droid app
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echo "${lib.removeSuffix "\n" config.environment.motd}"
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fi
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''}
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${lib.optionalString config.build.initialBuild ''
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if [ -e /etc/UNINTIALISED ]; then
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export HOME="${config.user.home}"
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export USER="${config.user.userName}"
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# To prevent gc warnings of nix, see https://github.com/NixOS/nix/issues/3237
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export GC_NPROCS=1
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echo "Setting default user profile..."
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${nix}/bin/nix-env --switch-profile /nix/var/nix/profiles/per-user/$USER/profile
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[ "$#" -gt 0 ] || echo "Sourcing Nix environment..."
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. ${nix}/etc/profile.d/nix.sh
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export NIX_SSL_CERT_FILE=${cacert}
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echo
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echo "Nix-on-Droid can be set up with channels or with flakes (still experimental)."
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while [[ -z $USE_FLAKE ]]; do
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read -r -p "Do you want to set it up with flakes? (y/N) " flakes
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if [[ "$flakes" =~ ^[Yy]$ ]]; then
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USE_FLAKE=1
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elif [[ "$flakes" =~ ^[Nn]$ || -z "$flakes" ]]; then
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USE_FLAKE=0
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else
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echo "Received invalid input '$flakes', please try again."
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fi
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done
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if [[ "$USE_FLAKE" == 0 ]]; then
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echo "Setting up Nix-on-Droid with channels..."
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echo "Installing and updating nix-channels..."
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${nix}/bin/nix-channel --add ${config.build.channel.nixpkgs} nixpkgs
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${nix}/bin/nix-channel --update nixpkgs
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${nix}/bin/nix-channel --add ${config.build.channel.nix-on-droid} nix-on-droid
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${nix}/bin/nix-channel --update nix-on-droid
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DEFAULT_CONFIG=$(${nix}/bin/nix-instantiate --eval --expr "<nix-on-droid/modules/environment/login/nix-on-droid.nix.default>")
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echo "Installing first Nix-on-Droid generation..."
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${nixCmd} build --no-link --file "<nix-on-droid>" nix-on-droid
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$(${nixCmd} path-info --file "<nix-on-droid>" nix-on-droid)/bin/nix-on-droid switch --file $DEFAULT_CONFIG
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. "${config.user.home}/.nix-profile/etc/profile.d/nix-on-droid-session-init.sh"
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echo "Copying default Nix-on-Droid config..."
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mkdir --parents $HOME/.config/nixpkgs
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cp $DEFAULT_CONFIG $HOME/.config/nixpkgs/nix-on-droid.nix
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chmod u+w $HOME/.config/nixpkgs/nix-on-droid.nix
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else
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echo "Setting up Nix-on-Droid with flakes..."
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echo "Installing flake from default template..."
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${nixCmd} flake new ${config.user.home}/.config/nix-on-droid --template ${config.build.flake.nix-on-droid}
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${lib.optionalString config.build.flake.inputOverrides ''
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echo "Overriding input urls in the flake..."
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while IFS="" read -r p || [[ -n "$p" ]]
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do
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if [[ $p =~ (.*)github:NixOS/nixpkgs.*\"\; ]]; then
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printf "''${BASH_REMATCH[1]}${config.build.flake.nixpkgs}\";\n" "$p"
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elif [[ $p =~ (.*)github:nix-community/nix-on-droid.*\"\; ]]; then
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printf "''${BASH_REMATCH[1]}${config.build.flake.nix-on-droid}\";\n" "$p"
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else
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printf '%s\n' "$p"
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fi
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done <<<$(< "${config.user.home}/.config/nix-on-droid/flake.nix") \
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> "${config.user.home}/.config/nix-on-droid/flake.nix"
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''}
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echo "Overriding system value in the flake..."
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while IFS="" read -r p || [[ -n "$p" ]]
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do
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if [[ $p =~ (.*)\"aarch64-linux\"(.*) ]]; then
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printf "''${BASH_REMATCH[1]}\"${targetSystem}\"''${BASH_REMATCH[2]}\n" "$p"
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else
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printf '%s\n' "$p"
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fi
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done <<<$(< "${config.user.home}/.config/nix-on-droid/flake.nix") \
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> "${config.user.home}/.config/nix-on-droid/flake.nix"
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echo "Installing first Nix-on-Droid generation..."
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${nixCmd} run ${config.build.flake.nix-on-droid} -- switch --flake ${config.user.home}/.config/nix-on-droid
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. "${config.user.home}/.nix-profile/etc/profile.d/nix-on-droid-session-init.sh"
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fi
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echo
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echo "Congratulations! Now you have Nix installed with some default packages like bashInteractive, \
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coreutils, cacert and, most importantly, Nix-on-Droid itself to manage local configuration, see"
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echo " nix-on-droid help"
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if [[ "$USE_FLAKE" == 0 ]]; then
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echo "or the config file"
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echo " ~/.config/nixpkgs/nix-on-droid.nix"
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echo
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echo "You can go for the bare Nix-on-Droid setup or you can configure your phone via home-manager. See \
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config file for further information."
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echo
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else
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echo "or the flake"
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echo " ~/.config/nix-on-droid/"
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echo
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echo "You can go for the bare Nix-on-Droid setup or you can configure your phone via home-manager. See \
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other templates in ${config.build.flake.nix-on-droid}."
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echo
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fi
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fi
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''}
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. "${config.user.home}/.nix-profile/etc/profile.d/nix-on-droid-session-init.sh"
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${lib.optionalString config.build.initialBuild ''
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exec /usr/bin/env bash # otherwise it'll be a limited bash that came with Nix
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''}
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usershell="${userShell}"
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if [ "$#" -gt 0 ]; then # if script is not called from within Nix-on-Droid app
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exec /usr/bin/env "$@"
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elif [ -d "$usershell" ]; then
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echo "Cannot execute shell '${userShell}', it is a directory."
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echo "You should point 'user.shell' to the exact binary."
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echo "Falling back to bash."
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exec -l bash
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elif [ -x "$usershell" ]; then
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exec -a "-''${usershell##*/}" "$usershell"
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else
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echo "Cannot execute shell '${userShell}', falling back to bash"
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exec -l bash
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fi
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''
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