Rename plain-dev env vars to avoid preflight settings warnings

Drop the PLAIN_ prefix from dev env vars (PLAIN_DEV_URL -> DEV_URL,
PLAIN_DEV_SERVICES_AUTO -> DEV_SERVICES_AUTO) so they don't trigger
the unused_env_var preflight check. Remove unused PLAIN_DEV var entirely.

Author: davegaeddert

example/pyproject.toml

@@ -39,7 +39,7 @@ dependencies = [
 version = "4.2.1"
 
 [tool.plain.dev.run]
-tunnel = { cmd = "plain tunnel $PLAIN_DEV_URL --subdomain plain-example --quiet" }
+tunnel = { cmd = "plain tunnel $DEV_URL --subdomain plain-example --quiet" }
 
 [tool.plain.code.oxc]
 version = "1.51.0"

plain-dev/plain/dev/cli.py

@@ -78,7 +78,7 @@ def cli(
             "You cannot use both --start and --stop at the same time."
         )
 
-    os.environ["PLAIN_DEV_SERVICES_AUTO"] = "false"
+    os.environ["DEV_SERVICES_AUTO"] = "false"
 
     dev = DevProcess()
 

plain-dev/plain/dev/core.py

@@ -68,7 +68,6 @@ def setup(
 
         self.plain_env = {
             "PYTHONUNBUFFERED": "true",
-            "PLAIN_DEV": "true",
             "PLAIN_SERVER_ACCESS_LOG_FIELDS": '["method", "url", "status", "duration_ms", "size"]',
             "FORCE_COLOR": "1",
             "PYTHONWARNINGS": "default::DeprecationWarning,default::PendingDeprecationWarning",
@@ -82,7 +81,7 @@ def setup(
         self.custom_process_env = {
             **self.plain_env,
             "PORT": str(self.port),
-            "PLAIN_DEV_URL": self.url,
+            "DEV_URL": self.url,
         }
 
         if self.tunnel_url:

plain-dev/plain/dev/services.py

@@ -18,10 +18,10 @@ def auto_start_services() -> None:
     """Start dev *services* in the background if not already running."""
 
     # Check if we're in CI and auto-start is not explicitly enabled
-    if os.environ.get("CI") and os.environ.get("PLAIN_DEV_SERVICES_AUTO") is None:
+    if os.environ.get("CI") and os.environ.get("DEV_SERVICES_AUTO") is None:
         return
 
-    if os.environ.get("PLAIN_DEV_SERVICES_AUTO", "true") not in [
+    if os.environ.get("DEV_SERVICES_AUTO", "true") not in [
         "1",
         "true",
         "yes",

plain-tunnel/plain/tunnel/README.md

@@ -35,10 +35,10 @@ You can run the tunnel automatically alongside your development server by adding
 
 ```toml
 [tool.plain.dev.run]
-tunnel = {cmd = "plain tunnel $PLAIN_DEV_URL --subdomain myapp --quiet"}
+tunnel = {cmd = "plain tunnel $DEV_URL --subdomain myapp --quiet"}
 ```
 
-The `$PLAIN_DEV_URL` variable is automatically set to your local server URL. The `--quiet` flag reduces log output so it does not clutter your terminal.
+The `$DEV_URL` variable is automatically set to your local server URL. The `--quiet` flag reduces log output so it does not clutter your terminal.
 
 To display the tunnel URL in the `plain dev` header, add `DEV_TUNNEL_URL` to your `.env` file: