On Darwin, launchd may attempt to start agents before the Nix store is
mounted and available. This leads to failures when the agent's executable
or arguments reside in the Nix store.
This change wraps the agent's command in a shell script that uses
/bin/wait4path to ensure /nix/store is ready before executing the
original program. It also ensures that ProgramArguments are correctly
escaped and concatenated.
Instead of having to manually stub packages that should not be
downloaded we instead automatically stub all packages (except a small
list of whitelisted ones). Tests can re-introduce the real package by
using the `realPkgs` module argument.
This expands the Syncthing configuration to allow declarative
settings. Code mostly pulled from the Nixpkgs module.
Changes compared to the NixOS module are:
Removed the following options:
- user, group, systemService: Unnecessary since Syncthing always runs
as the user declaring the configuration.
- dataDir configDir, databaseDir: Pointed to ~/.local/state/syncthing,
the default Syncthing directory.
- openDefaultPorts: We don't have access to the system firewall.
Furthermore, multiple changes to systemd services were made to
maintain consistency with other Home Manager modules, sandboxing
options might need to be reviewed further.
Fixes#4049
This option provides a more convenient way to overlay dummy packages.
It also adds a function `config.lib.test.mkStubPackage` that can,
e.g., be used for `package` options.
