feat(cli): Added CLI command for handling plugins

* Install / Uninstall plugins
* List plugins

flaschengeist/cli/plugin_cmd.py

@@ -0,0 +1,83 @@
+import click
+from click.decorators import pass_context
+from flask import current_app
+from flask.cli import with_appcontext
+from flaschengeist.utils.plugin import get_plugins, plugin_version
+
+
+@click.group()
+def plugin():
+    pass
+
+
+@plugin.command()
+@click.argument("plugin", nargs=-1, type=str)
+@click.option("--all", help="Install all enabled plugins", is_flag=True)
+@with_appcontext
+@pass_context
+def install(ctx, plugin, all):
+    """Install one or more plugins"""
+    if not all and len(plugin) == 0:
+        ctx.fail("At least one plugin must be specified, or use `--all` flag.")
+    if all:
+        plugins = current_app.config["FG_PLUGINS"].values()
+    else:
+        try:
+            plugins = [current_app.config["FG_PLUGINS"][p] for p in plugin]
+        except KeyError as e:
+            ctx.fail(f"Invalid plugin ID, could not find >{e.args[0]}<")
+    for p in plugins:
+        name = p.id.split(".")[-1]
+        click.echo(f"Installing {name}{'.'*(20-len(name))}", nl=False)
+        p.install()
+        click.secho(" ok", fg="green")
+
+
+@plugin.command()
+@click.argument("plugin", nargs=-1, type=str)
+@with_appcontext
+@pass_context
+def uninstall(ctx: click.Context, plugin):
+    """Uninstall one or more plugins"""
+
+    if len(plugin) == 0:
+        ctx.fail("At least one plugin must be specified")
+    try:
+        plugins = [current_app.config["FG_PLUGINS"][p] for p in plugin]
+    except KeyError as e:
+        ctx.fail(f"Invalid plugin ID, could not find >{e.args[0]}<")
+    if (
+        click.prompt(
+            "You are going to uninstall:\n\n"
+            f"\t{', '.join([p.id.split('.')[-1] for p in plugins])}\n\n"
+            "Are you sure?",
+            default="n",
+            show_choices=True,
+            type=click.Choice(["y", "N"], False),
+        ).lower()
+        != "y"
+    ):
+        ctx.exit()
+    for p in plugins:
+        name = p.id.split(".")[-1]
+        click.echo(f"Uninstalling {name}{'.'*(20-len(name))}", nl=False)
+        p.uninstall()
+        click.secho(" ok", fg="green")
+
+
+@plugin.command()
+@click.option("--enabled", "-e", help="List only enabled plugins", is_flag=True)
+@with_appcontext
+def ls(enabled):
+    if enabled:
+        plugins = current_app.config["FG_PLUGINS"].values()
+    else:
+        plugins = get_plugins()
+
+    print(f"{' '*13}{'name': <20}|{'version': >10}")
+    print("-" * 46)
+    for plugin in plugins:
+        print(
+            f"{plugin.id: <33}|{plugin_version(plugin): >12}"
+            f"{click.style(' (enabled)', fg='green') if plugin.id in current_app.config['FG_PLUGINS'] else click.style(' (disabled)', fg='red')}"
+        )