[Python-modules-commits] [python-neovim] 01/03: Import python-neovim_0.1.5.orig.tar.gz

Víctor Cuadrado Juan viccuad-guest at moszumanska.debian.org
Mon Mar 21 19:49:42 UTC 2016


This is an automated email from the git hooks/post-receive script.

viccuad-guest pushed a commit to branch master
in repository python-neovim.

commit 1ba685348c3acf8de18f532392d0a0d7fd42a6c7
Author: Víctor Cuadrado Juan <me at viccuad.me>
Date:   Mon Mar 21 20:31:53 2016 +0100

    Import python-neovim_0.1.5.orig.tar.gz
---
 LICENSE                        | 201 +++++++++++++++++++++++++++++++++++++++++
 MANIFEST.in                    |   1 +
 PKG-INFO                       |   4 +-
 README.md                      | 151 +++++++++++++++++++++++++++++++
 neovim.egg-info/PKG-INFO       |   4 +-
 neovim.egg-info/SOURCES.txt    |   3 +
 neovim/__init__.py             |  19 +++-
 neovim/msgpack_rpc/__init__.py |   5 +-
 neovim/msgpack_rpc/session.py  |  16 ++++
 neovim/plugin/host.py          |  36 ++++++--
 setup.py                       |   4 +-
 11 files changed, 423 insertions(+), 21 deletions(-)

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..9942365
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,201 @@
+Apache License
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+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      other commercial damages or losses), even if such Contributor
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+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
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+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
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+   Copyright 2014 Thiago Arruda
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
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diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..64ad321
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include README.md LICENSE
diff --git a/PKG-INFO b/PKG-INFO
index 3dbc1b9..46a580d 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -1,11 +1,11 @@
 Metadata-Version: 1.1
 Name: neovim
-Version: 0.1.4
+Version: 0.1.5
 Summary: Python client to neovim
 Home-page: http://github.com/neovim/python-client
 Author: Thiago de Arruda
 Author-email: tpadilha84 at gmail.com
 License: Apache
-Download-URL: https://github.com/neovim/python-client/archive/0.1.4.tar.gz
+Download-URL: https://github.com/neovim/python-client/archive/0.1.5.tar.gz
 Description: UNKNOWN
 Platform: UNKNOWN
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..14f00a4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,151 @@
+### Python client to [Neovim](https://github.com/neovim/neovim)
+
+[![Build Status](https://travis-ci.org/neovim/python-client.svg?branch=master)](https://travis-ci.org/neovim/python-client)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/neovim/python-client/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/neovim/python-client/?branch=master)
+[![Code Coverage](https://scrutinizer-ci.com/g/neovim/python-client/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/neovim/python-client/?branch=master)
+
+Implements support for python plugins in Nvim. Also works as a library for
+connecting to and scripting Nvim processes through its msgpack-rpc API.
+
+#### Installation
+
+```sh
+pip install neovim
+```
+
+You can install the package without being root by adding the `--user` flag. You
+can use `pip2` and `pip3` to explicitly install for python2 and python3,
+respectively.
+
+#### Python Plugin API
+
+Neovim has a new mechanism for defining plugins, as well as a number of
+extensions to the python API. The API extensions are accessible no matter if the
+traditional `:python` interface or the new mechanism is used, as discussed
+below.
+
+* `vim.funcs` exposes vimscript functions (both builtin and global user defined
+  functions) as a python namespace. For instance to set the value of the value
+  of a register
+
+    `vim.funcs.setreg('0', ["some", "text"], 'l')`
+
+* The API is not thread-safe in general. However, `vim.async_call` allows a
+  spawned thread to schedule code to be executed on the main thread. This method
+  could also be called from `:python` or a synchronous request handler, to defer
+  some execution that shouldn't block nvim.
+
+    `:python vim.async_call(myfunc, args...)`
+
+  Note that this code will still block the plugin host if it does long-running
+  computations. Intensive computations should be done in a separate thread (or
+  process), and `vim.async_call` can be used to send results back to nvim.
+
+* Some methods accept an extra keyword-only argument `async`: `vim.eval`,
+  `vim.command` as well as the `vim.funcs` wrappers. The python host will not
+  wait for nvim to complete the request, which also means that the return value
+  is unavailable.
+
+#### Remote (new-style) plugins
+
+Neovim allows python plugins to be defined by placing python files or packages
+in `rplugin/python3/` (in a runtimepath folder). These follow the structure of
+this example:
+
+```python
+import neovim
+
+ at neovim.plugin
+class TestPlugin(object):
+
+    def __init__(self, nvim):
+        self.nvim = nvim
+
+    @neovim.function("TestFunction", sync=True)
+    def testfunction(self, args):
+        return 3
+
+    @neovim.command("TestCommand", range='', nargs='*')
+    def testcommand(self, args, range):
+        self.nvim.current.line = ('Command with args: {}, range: {}'
+                                  .format(args, range))
+
+    @neovim.autocmd('BufEnter', pattern='*.py', eval='expand("<afile>")', sync=True)
+    def on_bufenter(self, filename):
+        self.nvim.out_write("testplugin is in " + filename + "\n")
+```
+
+If `sync=True` is supplied nvim will wait for the handler to finish (this is
+required for function return values), but by default handlers are executed
+asynchronously.
+
+You need to run `:UpdateRemotePlugins` in nvim for changes in the specifications
+to have effect. For details see `:help remote-plugin` in nvim.
+
+#### Development
+
+Install the master version by cloning this repository and in the root directory
+execute
+
+```sh
+pip install .
+```
+
+You need to rerun this command if you have changed the code, in order for nvim
+to use it for the plugin host.
+
+To run the tests execute
+
+```sh
+NVIM_CHILD_ARGV='["nvim", "-u", "NONE", "--embed"]' nosetests
+```
+
+Alternatively, if you want to see the state of nvim, you could
+
+```sh
+export NVIM_LISTEN_ADDRESS=/tmp/nvimtest
+xterm -e "nvim -u NONE"&
+nosetests
+```
+
+But note you need to restart nvim every time you run the tests! Substitute your
+favorite terminal emulator for `xterm`.
+
+#### Usage through the python REPL
+
+A number of different transports are supported, but the simplest way to get
+started is with the python REPL. First, start Nvim with a known address (or use
+the `$NVIM_LISTEN_ADDRESS` of a running instance): 
+
+```sh
+$ NVIM_LISTEN_ADDRESS=/tmp/nvim nvim
+```
+
+In another terminal, connect a python REPL to Nvim (note that the API is similar
+to the one exposed by the [python-vim
+bridge](http://vimdoc.sourceforge.net/htmldoc/if_pyth.html#python-vim)):
+
+```python
+>>> from neovim import attach
+# Create a python API session attached to unix domain socket created above:
+>>> nvim = attach('socket', path='/tmp/nvim')
+# Now do some work. 
+>>> buffer = nvim.buffers[0] # Get the first buffer
+>>> buffer[0] = 'replace first line'
+>>> buffer[:] = ['replace whole buffer']
+>>> nvim.command('vsplit')
+>>> nvim.windows[1].width = 10
+>>> nvim.vars['global_var'] = [1, 2, 3]
+>>> nvim.eval('g:global_var')
+[1, 2, 3]
+```
+
+You can embed neovim into your python application instead of binding to a
+running neovim instance.
+
+```python
+>>> from neovim import attach
+>>> nvim = attach('child', argv=["/bin/env", "nvim", "--embed"])
+```
+
+The tests can be consulted for more examples.
diff --git a/neovim.egg-info/PKG-INFO b/neovim.egg-info/PKG-INFO
index 3dbc1b9..46a580d 100644
--- a/neovim.egg-info/PKG-INFO
+++ b/neovim.egg-info/PKG-INFO
@@ -1,11 +1,11 @@
 Metadata-Version: 1.1
 Name: neovim
-Version: 0.1.4
+Version: 0.1.5
 Summary: Python client to neovim
 Home-page: http://github.com/neovim/python-client
 Author: Thiago de Arruda
 Author-email: tpadilha84 at gmail.com
 License: Apache
-Download-URL: https://github.com/neovim/python-client/archive/0.1.4.tar.gz
+Download-URL: https://github.com/neovim/python-client/archive/0.1.5.tar.gz
 Description: UNKNOWN
 Platform: UNKNOWN
diff --git a/neovim.egg-info/SOURCES.txt b/neovim.egg-info/SOURCES.txt
index 32fc33b..910a7da 100644
--- a/neovim.egg-info/SOURCES.txt
+++ b/neovim.egg-info/SOURCES.txt
@@ -1,3 +1,6 @@
+LICENSE
+MANIFEST.in
+README.md
 setup.cfg
 setup.py
 neovim/__init__.py
diff --git a/neovim/__init__.py b/neovim/__init__.py
index b350fdf..6fea713 100644
--- a/neovim/__init__.py
+++ b/neovim/__init__.py
@@ -7,8 +7,8 @@ import os
 import sys
 
 from .api import DecodeHook, Nvim, SessionHook
-from .msgpack_rpc import (child_session, socket_session, stdio_session,
-                          tcp_session)
+from .msgpack_rpc import (ErrorResponse, child_session, socket_session,
+                          stdio_session, tcp_session)
 from .plugin import (Host, autocmd, command, encoding, function, plugin,
                      rpc_export, shutdown_hook)
 
@@ -16,7 +16,8 @@ from .plugin import (Host, autocmd, command, encoding, function, plugin,
 __all__ = ('tcp_session', 'socket_session', 'stdio_session', 'child_session',
            'start_host', 'autocmd', 'command', 'encoding', 'function',
            'plugin', 'rpc_export', 'Host', 'DecodeHook', 'Nvim',
-           'SessionHook', 'shutdown_hook', 'attach', 'setup_logging')
+           'SessionHook', 'shutdown_hook', 'attach', 'setup_logging',
+           'ErrorResponse')
 
 
 def start_host(session=None):
@@ -39,6 +40,18 @@ def start_host(session=None):
         _, ext = os.path.splitext(arg)
         if ext == '.py':
             plugins.append(arg)
+        elif os.path.isdir(arg):
+            init = os.path.join(arg, '__init__.py')
+            if os.path.isfile(init):
+                plugins.append(arg)
+
+    # This is a special case to support the old workaround of
+    # adding an empty .py file to make a package directory
+    # visible, and it should be removed soon.
+    for path in list(plugins):
+        dup = path + ".py"
+        if os.path.isdir(path) and dup in plugins:
+            plugins.remove(dup)
 
     if not plugins:
         sys.exit('must specify at least one plugin as argument')
diff --git a/neovim/msgpack_rpc/__init__.py b/neovim/msgpack_rpc/__init__.py
index 04d2972..162606c 100644
--- a/neovim/msgpack_rpc/__init__.py
+++ b/neovim/msgpack_rpc/__init__.py
@@ -7,10 +7,11 @@ code here should work with other msgpack-rpc servers.
 from .async_session import AsyncSession
 from .event_loop import EventLoop
 from .msgpack_stream import MsgpackStream
-from .session import Session
+from .session import ErrorResponse, Session
 
 
-__all__ = ('tcp_session', 'socket_session', 'stdio_session', 'child_session')
+__all__ = ('tcp_session', 'socket_session', 'stdio_session', 'child_session',
+           'ErrorResponse')
 
 
 def session(transport_type='stdio', *args, **kwargs):
diff --git a/neovim/msgpack_rpc/session.py b/neovim/msgpack_rpc/session.py
index c2bfbc6..135589a 100644
--- a/neovim/msgpack_rpc/session.py
+++ b/neovim/msgpack_rpc/session.py
@@ -182,6 +182,10 @@ class Session(object):
                 debug('greenlet %s finished executing, ' +
                       'sending %s as response', gr, rv)
                 response.send(rv)
+            except ErrorResponse as err:
+                warn("error response from request '%s %s': %s", name,
+                     args, format_exc())
+                response.send(err.args[0], error=True)
             except Exception as err:
                 warn("error caught while processing request '%s %s': %s", name,
                      args, format_exc())
@@ -207,3 +211,15 @@ class Session(object):
         gr = greenlet.greenlet(handler)
         debug('received rpc notification, greenlet %s will handle it', gr)
         gr.switch()
+
+
+class ErrorResponse(BaseException):
+
+    """Raise this in a request handler to respond with a given error message.
+
+    Unlike when other exceptions are caught, this gives full control off the
+    error response sent. When "ErrorResponse(msg)" is caught "msg" will be
+    sent verbatim as the error response.No traceback will be appended.
+    """
+
+    pass
diff --git a/neovim/plugin/host.py b/neovim/plugin/host.py
index 24db0bd..d89b01d 100644
--- a/neovim/plugin/host.py
+++ b/neovim/plugin/host.py
@@ -5,11 +5,13 @@ import inspect
 import logging
 import os
 import os.path
+import re
 
 from traceback import format_exc
 
 from ..api import DecodeHook
 from ..compat import IS_PYTHON3, find_module
+from ..msgpack_rpc import ErrorResponse
 
 __all__ = ('Host')
 
@@ -31,6 +33,7 @@ class Host(object):
         self.nvim = nvim
         self._specs = {}
         self._loaded = {}
+        self._load_errors = {}
         self._notification_handlers = {}
         self._request_handlers = {
             'poll': lambda: 'ok',
@@ -58,9 +61,9 @@ class Host(object):
             name = name.decode(self._nvim_encoding)
         handler = self._request_handlers.get(name, None)
         if not handler:
-            msg = 'no request handler registered for "%s"' % name
-            warn(msg)
-            raise Exception(msg)
+            msg = self._missing_handler_error(name, 'request')
+            error(msg)
+            raise ErrorResponse(msg)
 
         debug('calling request handler for "%s", args: "%s"', name, args)
         rv = handler(*args)
@@ -73,7 +76,9 @@ class Host(object):
             name = name.decode(self._nvim_encoding)
         handler = self._notification_handlers.get(name, None)
         if not handler:
-            warn('no notification handler registered for "%s"', name)
+            msg = self._missing_handler_error(name, 'notification')
+            error(msg)
+            self.nvim.err_write(msg + "\n")
             return
 
         debug('calling notification handler for "%s", args: "%s"', name, args)
@@ -85,8 +90,18 @@ class Host(object):
             self.nvim.err_write(msg, async=True)
             raise
 
+    def _missing_handler_error(self, name, kind):
+        msg = 'no {} handler registered for "{}"'.format(kind, name)
+        pathmatch = re.match(r'(.+):[^:]+:[^:]+', name)
+        if pathmatch:
+            loader_error = self._load_errors.get(pathmatch.group(1))
+            if loader_error is not None:
+                msg = msg + "\n" + loader_error
+        return msg
+
     def _load(self, plugins):
         for path in plugins:
+            err = None
             if path in self._loaded:
                 error('{0} is already loaded'.format(path))
                 continue
@@ -105,12 +120,11 @@ class Host(object):
                     error('{0} exports no handlers'.format(path))
                     continue
                 self._loaded[path] = {'handlers': handlers, 'module': module}
-            except (ImportError, SyntaxError) as e:
-                error(('Encountered import error loading '
-                       'plugin at {0}: {1}').format(path, e))
             except Exception as e:
-                error('Error loading plugin at {0} {1}: {2}'.format(
-                    path, type(e).__name__, e))
+                err = ('Encountered {} loading plugin at {}: {}\n{}'
+                       .format(type(e).__name__, path, e, format_exc(5)))
+                error(err)
+                self._load_errors[path] = err
 
     def _unload(self):
         for path, plugin in self._loaded.items():
@@ -183,7 +197,9 @@ class Host(object):
     def _on_specs_request(self, path):
         if IS_PYTHON3 and isinstance(path, bytes):
             path = path.decode(self._nvim_encoding)
-        return self._specs.get(path, [])
+        if path in self._load_errors:
+            self.nvim.out_write(self._load_errors[path] + '\n')
+        return self._specs.get(path, 0)
 
     def _decodehook_for(self, encoding):
         if IS_PYTHON3 and encoding is None:
diff --git a/setup.py b/setup.py
index 70b57a5..0e8c1b2 100644
--- a/setup.py
+++ b/setup.py
@@ -16,10 +16,10 @@ if platform.python_implementation() != 'PyPy':
     install_requires.append('greenlet')
 
 setup(name='neovim',
-      version='0.1.4',
+      version='0.1.5',
       description='Python client to neovim',
       url='http://github.com/neovim/python-client',
-      download_url='https://github.com/neovim/python-client/archive/0.1.4.tar.gz',
+      download_url='https://github.com/neovim/python-client/archive/0.1.5.tar.gz',
       author='Thiago de Arruda',
       author_email='tpadilha84 at gmail.com',
       license='Apache',

-- 
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