Add a "clear-hooks" command

Useful in emergencies to undo mistakes done by set-hooks.

gitlab_deps/hooks.py

@@ -18,3 +18,12 @@ def check_hook(gl, hook_url, webhook_token, project_path, dry_run):
             'pipeline_events': True,
             'token': webhook_token,
         })
+
+
+def clear_hooks(gl, project_path, dry_run):
+    project = gl.projects.get(project_path)
+    for h in project.hooks.list():
+        logging.info('%s: removing hook %s', project_path, h.url)
+        if not dry_run:
+            h.delete()
+

gitlab_deps/main.py

@@ -7,7 +7,7 @@ from urllib.parse import urlsplit
 
 from .deps import get_branches, list_projects, list_deps, \
     split_project_branch, read_deps
-from .hooks import check_hook
+from .hooks import check_hook, clear_hooks
 from .rebuild import rebuild_deps
 from .server import run_app
 
@@ -105,6 +105,14 @@ from standard input if a filename is omitted or specified as '-'.
         type=argparse.FileType('r'),
         nargs='?', default=sys.stdin)
 
+    clear_hooks_parser = subparsers.add_parser(
+        'clear-hooks',
+        parents=[common_parser])
+    clear_hooks_parser.add_argument(
+        'projects_list',
+        type=argparse.FileType('r'),
+        nargs='?', default=sys.stdin)
+
     # Setup pipeline hooks on the specified projects.
     set_hooks_parser = subparsers.add_parser(
         'set-hooks',
@@ -264,6 +272,16 @@ specified as '-'.
                 logging.error('error checking project %s: %s',
                               project_path, e)
 
+    elif cmd == 'clear-hooks':
+        projects = set(y[0] for y in (
+            split_project_branch(x.strip()) for x in args.projects_list))
+        for project_path in projects:
+            try:
+                clear_hooks(gl, project_path, args.dry_run)
+            except Exception as e:
+                logging.error('error clearing hooks for project %s: %s',
+                              project_path, e)
+
     elif cmd == 'server':
         deps = read_deps(args.dependencies_list)
         run_app(gl, deps, args.bind_host, args.bind_port,