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|
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
command=deploy
. ${init.args}
\test -n "''${target-}" || target=$system
\test -n "''${user-}" || user=$LOGNAME
. ${init.env}
exec ${utils.deploy}
'';
# usage: test [--user=USER] --system=SYSTEM --target=TARGET
cmds.test = pkgs.writeDash "cmds.test" /* sh */ ''
set -efu
export dummy_secrets=true
command=test
. ${init.args}
\test -n "''${user-}" || user=$LOGNAME
. ${init.env}
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 \
"$1"
'';
# usage: parse-target [USER@]HOST[:PORT][/PATH]
cmds.parse-target = pkgs.writeDash "cmds.parse-target" ''
set -efu
script=${pkgs.writeText "cmds.parse-target.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),
}
''}
exec ${pkgs.jq}/bin/jq -enrf "$script" --arg target "$1" \
'';
# usage: quote [ARGS...]
cmds.quote = pkgs.writeDash "cmds.quote" ''
set -efu
prefix=
for x; do
y=$(${pkgs.jq}/bin/jq -nr --arg x "$x" '$x | @sh "\(.)"')
echo -n "$prefix$y"
prefix=' '
done
echo
'';
init.args = pkgs.writeText "init.args" /* sh */ ''
args=$(${pkgs.utillinux}/bin/getopt -n "$command" -s sh \
-o s:t:u: \
-l system:,target:,user: \
-- "$@")
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;;
-u|--user) user=$2; shift 2;;
--) shift; break;;
esac; done
for arg; do echo "$command: bad argument: $arg" >&2; done
if \test $# != 0; then exit 2; fi
'';
init.env = pkgs.writeText "init.env" /* sh */ ''
source=''${source-$user/1systems/$system/source.nix}
export source
export system
export target
export user
export target_object="$(parse-target "$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" "$@"
fi
fi
'' // {
populate = pkgs.writeDash "init.env.populate" ''
set -efu
_source=$(get-source "$source")
echo $_source |
${pkgs.populate}/bin/populate \
"$target_user@$target_host:$target_port$target_path" \
>&2
unset _source
'';
proxy = pkgs.writeDash "init.env.proxy" ''
set -efu
exec ${pkgs.openssh}/bin/ssh \
"$target_user@$target_host" -p "$target_port" \
cd "$target_path/stockholm" \; \
NIX_PATH=$(quote "$target_path") \
STOCKHOLM_VERSION=$(quote "$STOCKHOLM_VERSION") \
nix-shell --run "$(quote "
system=$(quote "$system") \
target=$(quote "$target") \
using_proxy=true \
$(quote "$@")
")"
'';
};
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=$PWD:nixpkgs=${toString <nixpkgs>}
export NIX_REMOTE=daemon
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\[\e[0m\] '
'';
}
|
