Set the DB path as an env var in systemd service files to prevent footgunning

arch/conduwuit.service

@@ -20,6 +20,7 @@ StandardError=journal+console
 
 Environment="CONTINUWUITY_LOG_TO_JOURNALD=true"
 Environment="CONTINUWUITY_JOURNALD_IDENTIFIER=%N"
+Environment="CONTINUWUITY_DATABASE_PATH=/var/lib/conduwuit"
 
 TTYReset=yes
 # uncomment to allow buffer to be cleared every restart

debian/conduwuit.service

@@ -16,6 +16,7 @@ Environment="CONTINUWUITY_CONFIG=/etc/conduwuit/conduwuit.toml"
 
 Environment="CONTINUWUITY_LOG_TO_JOURNALD=true"
 Environment="CONTINUWUITY_JOURNALD_IDENTIFIER=%N"
+Environment="CONTINUWUITY_DATABASE_PATH=/var/lib/conduwuit"
 
 ExecStart=/usr/sbin/conduwuit
 

fedora/conduwuit.service

@@ -15,6 +15,7 @@ Environment="CONTINUWUITY_CONFIG=/etc/conduwuit/conduwuit.toml"
 
 Environment="CONTINUWUITY_LOG_TO_JOURNALD=true"
 Environment="CONTINUWUITY_JOURNALD_IDENTIFIER=%N"
+Environment="CONTINUWUITY_DATABASE_PATH=/var/lib/conduwuit"
 
 ExecStart=/usr/bin/conduwuit
 

src/core/config/mod.rs

@@ -126,9 +126,11 @@ pub struct Config {
 	/// This is the only directory where continuwuity will save its data,
 	/// including media. Note: this was previously "/var/lib/matrix-conduit".
 	///
-	/// YOU NEED TO EDIT THIS.
+	/// YOU NEED TO EDIT THIS, UNLESS you are running continuwuity as a `systemd` service.
+	/// The service file sets it to `/var/lib/conduwuit` using an environment variable
+	/// and also grants write access.
 	///
-	/// example: "/var/lib/continuwuity"
+	/// example: "/var/lib/conduwuit"
 	pub database_path: PathBuf,
 
 	/// continuwuity supports online database backups using RocksDB's Backup