implement fs unmount

rose/__main__.py

@@ -6,7 +6,7 @@
 from rose.cache.database import migrate_database
 from rose.cache.update import update_cache_for_all_releases
 from rose.foundation.conf import Config
-from rose.virtualfs import start_virtualfs
+from rose.virtualfs import mount_virtualfs, unmount_virtualfs
 
 
 @dataclass
@@ -17,17 +17,17 @@ class Context:
 @click.group()
 @click.option("--verbose", "-v", is_flag=True)
 @click.pass_context
-def cli(clickctx: click.Context, verbose: bool) -> None:
+def cli(cc: click.Context, verbose: bool) -> None:
     """A filesystem-driven music library manager."""
-    clickctx.obj = Context(
+    cc.obj = Context(
         config=Config.read(),
     )
 
     if verbose:
         logging.getLogger().setLevel(logging.DEBUG)
 
     # Migrate the database on every command invocation.
-    migrate_database(clickctx.obj.config)
+    migrate_database(cc.obj.config)
 
 
 @cli.group()
@@ -37,28 +37,35 @@ def cache() -> None:
 
 @cache.command()
 @click.pass_obj
-def refresh(c: Context) -> None:
+def refresh(ctx: Context) -> None:
     """Refresh the cached data from disk."""
-    update_cache_for_all_releases(c.config)
+    update_cache_for_all_releases(ctx.config)
 
 
 @cache.command()
 @click.pass_obj
-def clear(c: Context) -> None:
+def clear(ctx: Context) -> None:
     """Clear the cache; empty the database."""
-    c.config.cache_database_path.unlink()
+    ctx.config.cache_database_path.unlink()
 
 
 @cli.group()
 def fs() -> None:
     """Manage the virtual library."""
 
 
-@cli.command()
+@fs.command()
 @click.pass_obj
-def mount(c: Context) -> None:
+def mount(ctx: Context) -> None:
     """Mount the virtual library."""
-    start_virtualfs(c.config)
+    mount_virtualfs(ctx.config)
+
+
+@fs.command()
+@click.pass_obj
+def unmount(ctx: Context) -> None:
+    """Unmount the virtual library."""
+    unmount_virtualfs(ctx.config)
 
 
 if __name__ == "__main__":

rose/virtualfs/__init__.py

@@ -1,3 +1,5 @@
+import subprocess
+
 import fuse
 
 from rose.foundation.conf import Config
@@ -9,7 +11,11 @@ class VirtualFS(fuse.Fuse):
     pass
 
 
-def start_virtualfs(c: Config):
+def mount_virtualfs(c: Config) -> None:
     server = VirtualFS()
     server.parse([str(c.fuse_mount_dir)])
     server.main()
+
+
+def unmount_virtualfs(c: Config) -> None:
+    subprocess.run(["umount", str(c.fuse_mount_dir)])