chore: add build targets to nix flake (#13186)

* chore: add build targets to nix flake

Enables `nix build github:coder/coder#main`!

* Fix all packages

* Add back pnpm

* Update flake.nix

Co-authored-by: Asher <ash@coder.com>

* Remove yarn

* fmt

---------

Co-authored-by: Asher <ash@coder.com>

scripts/lib.sh

@@ -43,6 +43,9 @@ SCRIPT="${BASH_SOURCE[1]:-${BASH_SOURCE[0]}}"
 SCRIPT_DIR="$(realpath "$(dirname "$SCRIPT")")"
 
 function project_root {
+	# Nix sets $src in derivations!
+	[[ -n "${src:-}" ]] && echo "$src" && return
+
 	# Try to use `git rev-parse --show-toplevel` to find the project root.
 	# If this directory is not a git repository, this command will fail.
 	git rev-parse --show-toplevel 2>/dev/null && return

scripts/update-flake.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+# Updates SRI hashes for flake.nix.
+
+set -eu
+
+cd "$(dirname "${BASH_SOURCE[0]}")/.."
+
+OUT=$(mktemp -d -t nar-hash-XXXXXX)
+
+echo "Downloading Go modules..."
+GOPATH="$OUT" go mod download
+echo "Calculating SRI hash..."
+HASH=$(go run tailscale.com/cmd/nardump --sri "$OUT/pkg/mod/cache/download")
+sudo rm -rf "$OUT"
+
+sed -i "s/\(vendorHash = \"\)[^\"]*/\1${HASH}/" ./flake.nix