diff options
Diffstat (limited to 'shell.nix')
| -rw-r--r-- | shell.nix | 126 |
1 files changed, 81 insertions, 45 deletions
@@ -2,6 +2,10 @@ let lib = import ./lib; pkgs = import <nixpkgs> { overlays = [(import ./krebs/5pkgs)]; }; + # + # high level commands + # + # usage: deploy [--user=USER] --system=SYSTEM [--target=TARGET] cmds.deploy = pkgs.writeDash "cmds.deploy" '' set -efu @@ -29,6 +33,69 @@ let exec ${utils.build} config.system.build.toplevel ''; + # + # low level commands + # + + # usage: get-source SOURCE_FILE + cmds.get-source = pkgs.writeDash "cmds.get-source" '' + set -efu + exec ${pkgs.nix}/bin/nix-instantiate \ + --eval \ + --json \ + --readonly-mode \ + --show-trace \ + --strict \ + "$1" + ''; + + # usage: parse-target [--default=TARGET] TARGET + # TARGET = [USER@]HOST[:PORT][/PATH] + cmds.parse-target = pkgs.writeDash "cmds.parse-target" '' + set -efu + args=$(${pkgs.utillinux}/bin/getopt -n "$0" -s sh \ + -o d: \ + -l default: \ + -- "$@") + if \test $? != 0; then exit 1; fi + eval set -- "$args" + default_target= + while :; do case $1 in + -d|--default) default_target=$2; shift 2;; + --) shift; break;; + esac; done + target=$1; shift + for arg; do echo "$0: bad argument: $arg" >&2; done + if \test $# != 0; then exit 2; fi + exec ${pkgs.jq}/bin/jq \ + -enr \ + --arg default_target "$default_target" \ + --arg target "$target" \ + -f ${pkgs.writeText "cmds.parse-target.jq" '' + def parse: match("^(?:([^@]+)@)?([^:/]+)?(?::([0-9]+))?(/.*)?$") | { + user: .captures[0].string, + host: .captures[1].string, + port: .captures[2].string, + path: .captures[3].string, + }; + def sanitize: with_entries(select(.value != null)); + ($default_target | parse) + ($target | parse | sanitize) | + . + { local: (.user == env.LOGNAME and .host == env.HOSTNAME) } + ''} + ''; + + # usage: quote [ARGS...] + cmds.quote = pkgs.writeDash "cmds.quote" '' + set -efu + prefix= + for x; do + y=$(${pkgs.jq}/bin/jq -nr --arg x "$x" '$x | @sh "\(.)"') + echo -n "$prefix$y" + prefix=' ' + done + echo + ''; + init.args = pkgs.writeText "init.args" /* sh */ '' args=$(${pkgs.utillinux}/bin/getopt -n "$command" -s sh \ -o s:t:u: \ @@ -47,16 +114,16 @@ let ''; init.env = pkgs.writeText "init.env" /* sh */ '' - config=''${config-$user/1systems/$system/config.nix} source=''${source-$user/1systems/$system/source.nix} - export config export source export system export target export user - export target_object="$(${init.env.parsetarget} $target)" + default_target=root@$system:22/var/src + + export target_object="$(parse-target "$target" -d "$default_target")" export target_user="$(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)" @@ -70,36 +137,9 @@ let 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 - _source=$(${pkgs.nix}/bin/nix-instantiate \ - --eval \ - --json \ - --readonly-mode \ - --show-trace \ - --strict \ - -I nixos-config="$config" \ - "$source") + _source=$(get-source "$source") echo $_source | ${pkgs.populate}/bin/populate \ "$target_user@$target_host:$target_port$target_path" \ @@ -108,22 +148,17 @@ let ''; 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 \ - --run $(q \ - config=$config \ - system=$system \ - target=$target \ - using_proxy=true \ - "$*" - ) + NIX_PATH=$(quote "$target_path") \ + STOCKHOLM_VERSION=$(quote "$STOCKHOLM_VERSION") \ + nix-shell --run "$(quote " + system=$(quote "$system") \ + target=$(quote "$target") \ + using_proxy=true \ + $(quote "$@") + ")" ''; }; @@ -166,7 +201,8 @@ let in pkgs.stdenv.mkDerivation { name = "stockholm"; shellHook = /* sh */ '' - export NIX_PATH="stockholm=$PWD''${NIX_PATH+:$NIX_PATH}" + export NIX_PATH=stockholm=$PWD:nixpkgs=${toString <nixpkgs>} + export NIX_REMOTE=daemon export PATH=${lib.makeBinPath [ shell.cmdspkg ]} |