tvl-depot/bin/__dispatch.sh
sterni 5a3a495956 feat(tools/depot-nixpkgs-update): tool to update our pin
Very simplistic tool to aid with updating our nixpkgs channel pins:
This tool prints the correct two `*Hashes` sets to stdout, so you can
easily delete the appropriate lines in `third_party/nixpkgs/default.nix`,
run

    ./bin/depot-nixpkgs-update | wl-copy

and paste it into your editor.

Doing this fully automatically would be possible, but would either
a) require changing `default.nix`, so it is regex-able more easily,
b) touching something like rnix-parser which I have no motivation to
at the moment or
c) searching for the old hashes and replacing them with the new
ones. This may be a simple and worthwhile improvement in the future.

Change-Id: I4df44e3827ce9ff6e4fe2d336c08016d799e21a7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3252
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2021-07-28 12:14:52 +00:00

67 lines
1.3 KiB
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#!/usr/bin/env bash
# This script dispatches invocations transparently to programs instantiated from
# Nix.
#
# To add a new tool, insert it into the case statement below by setting `attr`
# to the key in nixpkgs which represents the program you want to run.
set -ueo pipefail
readonly REPO_ROOT=$(dirname "$0")/..
TARGET_TOOL=$(basename "$0")
case "${TARGET_TOOL}" in
age)
attr="third_party.age"
;;
age-keygen)
attr="third_party.age"
;;
depot-build)
attr="tools.depot-build"
;;
depot-nixpkgs-update)
attr="tools.depot-nixpkgs-update"
;;
gerrit)
attr="tools.gerrit-cli"
;;
gerrit-update)
attr="tools.gerrit-update"
;;
hash-password)
attr="tools.hash-password"
;;
kontemplate)
attr="kontemplate"
;;
meson)
attr="third_party.meson"
;;
ninja)
attr="third_party.ninja"
;;
perf-flamegraph)
attr="tools.perf-flamegraph"
;;
rebuild-system)
attr="ops.nixos.rebuild-system"
;;
rebuilder)
attr="users.tazjin.nixos.rebuilder"
;;
rink)
attr="third_party.rink"
;;
stern)
attr="third_party.stern"
;;
*)
echo "The tool '${TARGET_TOOL}' is currently not installed in this repository."
exit 1
;;
esac
result=$(nix-build --no-out-link --attr "${attr}" "${REPO_ROOT}")
PATH="${result}/bin:$PATH"
exec "${TARGET_TOOL}" "${@}"