diff options
Diffstat (limited to 'shell.nix')
| -rw-r--r-- | shell.nix | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/shell.nix b/shell.nix new file mode 100644 index 00000000..3e7ba81c --- /dev/null +++ b/shell.nix @@ -0,0 +1,186 @@ +let + lib = import ./lib; + pkgs = import <nixpkgs> { overlays = [(import ./krebs/5pkgs)]; }; + + # usage: deploy --system=SYSTEM [--target=TARGET] + cmds.deploy = pkgs.writeDash "cmds.deploy" '' + set -efu + + command=deploy + . ${init.args} + \test -n "''${target-}" || target=$system + . ${init.env} + + exec ${utils.deploy} + ''; + + # usage: test --system=SYSTEM --target=TARGET + cmds.test = pkgs.writeDash "cmds.test" /* sh */ '' + set -efu + + command=test + . ${init.args} + . ${init.env} + + export dummy_secrets=true + exec ${utils.build} config.system.build.toplevel + ''; + + init.args = pkgs.writeText "init.args" /* sh */ '' + args=$(${pkgs.utillinux}/bin/getopt -n "$command" -s sh \ + -o s:t: \ + -l system:,target: \ + -- "$@") + if \test $? != 0; then exit 1; fi + eval set -- "$args" + while :; do case $1 in + -s|--system) system=$2; shift 2;; + -t|--target) target=$2; shift 2;; + --) shift; break;; + esac; done + for arg; do echo "$command: bad argument: $arg" >&2; done + if \test $# != 0; then exit 2; fi + ''; + + init.env = pkgs.writeText "init.env" /* sh */ '' + config=''${config-$LOGNAME/1systems/$system.nix} + + export config + export system + export target + + export target_object="$(${init.env.parsetarget} $target)" + export target_user="$(echo $target_object | ${pkgs.jq}/bin/jq -r .user)" + export target_host="$(echo $target_object | ${pkgs.jq}/bin/jq -r .host)" + export target_port="$(echo $target_object | ${pkgs.jq}/bin/jq -r .port)" + export target_path="$(echo $target_object | ${pkgs.jq}/bin/jq -r .path)" + export target_local="$(echo $target_object | ${pkgs.jq}/bin/jq -r .local)" + + if \test "''${using_proxy-}" != true; then + ${init.env.populate} + if \test "$target_local" != true; then + exec ${init.env.proxy} "$command" "$@" + fi + fi + '' // { + parsetarget = pkgs.writeDash "init.env.parsetarget" '' + set -efu + exec ${pkgs.jq}/bin/jq \ + -enr \ + --arg target "$1" \ + -f ${init.env.parsetarget.jq} + '' // { + jq = pkgs.writeText "init.env.parsetarget.jq" '' + def when(c; f): if c then f else . end; + def capturesDef(i; v): .captures[i].string | when(. == null; v); + $target | match("^(?:([^@]+)@)?([^:/]+)?(?::([0-9]+))?(/.*)?$") | { + user: capturesDef(0; "root"), + host: capturesDef(1; env.system), + port: capturesDef(2; "22"), + path: capturesDef(3; "/var/src"), + } | . + { + local: (.user == env.LOGNAME and .host == env.HOSTNAME), + } + ''; + }; + populate = pkgs.writeDash "init.env.populate" '' + set -efu + ${pkgs.nix}/bin/nix-instantiate \ + --eval \ + --json \ + --readonly-mode \ + --show-trace \ + --strict \ + -I nixos-config="$config" \ + -E 'with import <stockholm>; config.krebs.build.source' \ + | + ${pkgs.populate}/bin/populate \ + "$target_user@$target_host:$target_port$target_path" \ + >&2 + ''; + proxy = pkgs.writeDash "init.env.proxy" '' + set -efu + q() { + ${pkgs.jq}/bin/jq -nr --arg x "$*" '$x | @sh "\(.)"' + } + exec ${pkgs.openssh}/bin/ssh \ + "$target_user@$target_host" -p "$target_port" \ + cd "$target_path/stockholm" \; \ + NIX_PATH=$(q "$target_path") \ + STOCKHOLM_VERSION=$STOCKHOLM_VERSION \ + nix-shell \ + --command $(q \ + config=$config \ + system=$system \ + target=$target \ + using_proxy=true \ + "$*" + ) + ''; + }; + + utils.build = pkgs.writeDash "utils.build" '' + set -efu + ${pkgs.nix}/bin/nix-build \ + -Q \ + --no-out-link \ + --show-trace \ + -E "with import <stockholm>; $1" \ + -I "$target_path" \ + 2>&1 | + ${pkgs.whatsupnix}/bin/whatsupnix + ''; + + utils.deploy = pkgs.writeDash "utils.deploy" '' + set -efu + PATH=/run/current-system/sw/bin nixos-rebuild switch \ + -Q \ + --show-trace \ + -I "$target_path" \ + 2>&1 | + ${pkgs.whatsupnix}/bin/whatsupnix + ''; + + shell.get-version = pkgs.writeDash "shell.get-version" '' + set -efu + version=git.$(${pkgs.git}/bin/git describe --always --dirty) + case $version in (*-dirty) + version=$version@$HOSTNAME + esac + date=$(${pkgs.coreutils}/bin/date +%y.%m) + echo "$date.$version" + ''; + + shell.cmdspkg = pkgs.writeOut "shell.cmdspkg" (lib.mapAttrs' (name: link: + lib.nameValuePair "/bin/${name}" { inherit link; } + ) cmds); + +in pkgs.stdenv.mkDerivation { + name = "stockholm"; + shellHook = /* sh */ '' + export NIX_PATH="stockholm=$PWD''${NIX_PATH+:$NIX_PATH}" + export PATH=${lib.makeBinPath [ + shell.cmdspkg + ]} + + eval "$(declare -F | ${pkgs.gnused}/bin/sed s/declare/unset/)" + shopt -u no_empty_cmd_completion + unalias -a + + enable -n \ + . [ alias bg bind break builtin caller cd command compgen complete \ + compopt continue dirs disown eval exec false fc fg getopts hash \ + help history jobs kill let local logout mapfile popd printf pushd \ + pwd read readarray readonly shift source suspend test times trap \ + true typeset ulimit umask unalias wait + + exitHandler() { + : + } + + export HOSTNAME="$(${pkgs.nettools}/bin/hostname)" + export STOCKHOLM_VERSION="''${STOCKHOLM_VERSION-$(${shell.get-version})}" + + PS1='\[\e[38;5;162m\]\w\[\e[0m\] ' + ''; +} |