From 7e5fd397653f197eae6c8fbb71e083974ff7805b Mon Sep 17 00:00:00 2001
From: Haikel Guemar <hguemar@fedoraproject.org>
Date: Sep 09 2016 17:11:06 +0000
Subject: Allow pag to passthrough unrecognized commands to git


This feature is to delegate execution of unrecognized commands
to git. This allows using pag as an alias of git.

e.g: 'pag who -n' redirects to 'git who -n'

---

diff --git a/pag/app.py b/pag/app.py
index b6c2ab9..529bc60 100644
--- a/pag/app.py
+++ b/pag/app.py
@@ -2,10 +2,32 @@
 
 import click
 
-@click.group()
+
+class PassthroughGroup(click.Group):
+    """This subclass adds two features
+    - allow resolving command names given to the command-line to the closest
+    existing command (e.g clo -> clone)
+    - if it doesn't exist, redirect to the default handlers and pass arguments
+    to the git binary.
+    """
+    def get_command(self, ctx, cmd_name):
+        rv = click.Group.get_command(self, ctx, cmd_name)
+        if rv is not None:
+            return rv
+        matches = [x for x in self.list_commands(ctx)
+                   if x.startswith(cmd_name)]
+        if not matches:
+            return click.Group.get_command(self, ctx, 'default')
+        elif len(matches) == 1:
+            return click.Group.get_command(self, ctx, matches[0])
+            ctx.fail('Too many matches: %s' % ', '.join(sorted(matches)))
+
+
+@click.group(cls=PassthroughGroup)
 def app():
     pass
 
+
 __all__ = [
     'app',
 ]
@@ -15,7 +37,7 @@ from .commands import clone
 from .commands import fork
 from .commands import remote
 from .commands import pullrequest
-
+from .commands import gitaliasing
 
 if __name__ == '__main__':
     app()
diff --git a/pag/commands/gitaliasing.py b/pag/commands/gitaliasing.py
new file mode 100644
index 0000000..1c6e493
--- /dev/null
+++ b/pag/commands/gitaliasing.py
@@ -0,0 +1,18 @@
+import click
+
+from pag.app import app
+from pag.utils import run
+
+# FIXME: click master has added a hidden parameter that would allow
+# us to hide this fallback command from generated help. 
+# hidden paramter was added in commit 8f4c34f69554d3397627ef16adb1b1f9b83c381e
+# https://github.com/pallets/click/commit/8f4c34f69554d3397627ef16adb1b1f9b83c381e
+@app.command(context_settings=dict(ignore_unknown_options=True,))
+@click.argument('cli_args', nargs=-1, type=click.UNPROCESSED)
+@click.pass_context
+def default(ctx, cli_args):
+    """"""
+    git_cmd = ctx.info_name
+    myargs = ['git', git_cmd]
+    myargs.extend(cli_args)
+    run(myargs)