Reckless: Add an update command

doc/lightning-reckless.1.md

@@ -16,6 +16,11 @@ lightningd config file. Reckless does all of these by invoking:
 
 **reckless** **install**[@*commit/tag*] *plugin\_name*
 
+Alternatively, the source path or URL to the plugin repository can be
+passed directly in place of the *plugin\_name*.  In either case, the
+containing directory or repository should be named for the plugin, don't
+pass the plugin's executable/entrypoint directly.
+
 reckless will exit early in the event that:
 
 - the plugin is not found in any available source repositories
@@ -53,6 +58,11 @@ Other commands include:
 **reckless** **source** **rm** *repo\_url*
 	remove a plugin repo for reckless to search.
 
+**reckless** **update** *[plugin\_name]*
+	install the latest commit of a single plugin, or omit to update all
+	reckless-installed plugins.  Does not automatically update if a plugin
+	was previously installed by requesting a specific git tag or commit.
+
 OPTIONS
 -------
 
@@ -81,7 +91,7 @@ Available option flags:
 NOTES
 -----
 
-Reckless currently supports python and javascript plugins.
+Reckless currently supports python, rust, and javascript plugins.
 
 Running the first time will prompt the user that their lightningd's
 bitcoin config will be appended (or created) to inherit the reckless

tests/test_reckless.py

@@ -231,14 +231,12 @@ def test_poetry_install(node_factory):
 
 
 @unittest.skipIf(VALGRIND, "virtual environment triggers memleak detection")
-@unittest.skip("Broken")
 def test_local_dir_install(node_factory):
     """Test search and install from local directory source."""
     n = get_reckless_node(node_factory)
     n.start()
-    r = reckless([f"--network={NETWORK}", "-v", "source", "add",
-                  os.path.join(n.lightning_dir, '..', 'lightningd', 'testplugpass')],
-                 dir=n.lightning_dir)
+    source_dir = str(Path(n.lightning_dir / '..' / 'lightningd' / 'testplugpass').resolve())
+    r = reckless([f"--network={NETWORK}", "-v", "source", "add", source_dir], dir=n.lightning_dir)
     assert r.returncode == 0
     r = reckless([f"--network={NETWORK}", "-v", "install", "testplugpass"], dir=n.lightning_dir)
     assert r.returncode == 0
@@ -247,6 +245,15 @@ def test_local_dir_install(node_factory):
     print(plugin_path)
     assert os.path.exists(plugin_path)
 
+    # Retry with a direct install passing the full path to the local source
+    r = reckless(['uninstall', 'testplugpass', '-v'], dir=n.lightning_dir)
+    assert not os.path.exists(plugin_path)
+    r = reckless(['source', 'remove', source_dir], dir=n.lightning_dir)
+    assert 'plugin source removed' in r.stdout
+    r = reckless(['install', '-v', source_dir], dir=n.lightning_dir)
+    assert 'testplugpass enabled' in r.stdout
+    assert os.path.exists(plugin_path)
+
 
 @unittest.skipIf(VALGRIND, "virtual environment triggers memleak detection")
 def test_disable_enable(node_factory):