[gnome-builder/wip/tingping/python-langserv] Create python-langserv plugin
- From: Patrick Griffis <pgriffis src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-builder/wip/tingping/python-langserv] Create python-langserv plugin
- Date: Tue, 18 Apr 2017 22:56:59 +0000 (UTC)
commit 2dd49f75a5256bb13b829acda6cd4037937824bc
Author: Patrick Griffis <tingping tingping se>
Date: Tue Apr 18 18:56:19 2017 -0400
Create python-langserv plugin
configure.ac | 2 +
meson_options.txt | 1 +
plugins/Makefile.am | 1 +
plugins/meson.build | 1 +
plugins/python-langserv/Makefile.am | 14 ++
plugins/python-langserv/configure.ac | 12 ++
plugins/python-langserv/meson.build | 6 +
plugins/python-langserv/python-langserv.plugin | 12 ++
plugins/python-langserv/python_langserv.py | 159 ++++++++++++++++++++++++
9 files changed, 208 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 194fd7d..affe901 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,6 +322,7 @@ m4_include([plugins/notification/configure.ac])
m4_include([plugins/phpize/configure.ac])
m4_include([plugins/project-tree/configure.ac])
m4_include([plugins/python-gi-imports-completion/configure.ac])
+m4_include([plugins/python-langserv/configure.ac])
m4_include([plugins/python-pack/configure.ac])
m4_include([plugins/quick-highlight/configure.ac])
m4_include([plugins/retab/configure.ac])
@@ -611,6 +612,7 @@ echo " Project Tree ......................... : ${enable_project_tree_plugin}"
echo " Python GObject Introspection ......... : ${enable_python_gi_imports_completion_plugin}"
echo " Python Jedi Autocompletion ........... : ${enable_jedi_plugin}"
echo " Python Language Pack ................. : ${enable_python_pack_plugin}"
+echo " Python Language Server ............... : ${enable_python_langserv_plugin}"
echo " Quick Highlight ...................... : ${enable_quick_highlight_plugin}"
echo " Retab................................. : ${enable_retab_plugin}"
echo " Rust Language Server ................. : ${enable_rust_langserv_plugin}"
diff --git a/meson_options.txt b/meson_options.txt
index c7067bb..c665810 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -50,6 +50,7 @@ option('with_notification', type: 'boolean')
option('with_phpize', type: 'boolean')
option('with_project_tree', type: 'boolean')
option('with_python_gi_imports_completion', type: 'boolean')
+option('with_python_langserv', type: 'boolean')
option('with_python_pack', type: 'boolean')
option('with_quick_highlight', type: 'boolean')
option('with_retab', type: 'boolean')
diff --git a/plugins/Makefile.am b/plugins/Makefile.am
index ffe0710..adaeac1 100644
--- a/plugins/Makefile.am
+++ b/plugins/Makefile.am
@@ -33,6 +33,7 @@ SUBDIRS = \
phpize \
project-tree \
python-gi-imports-completion \
+ python-langserv \
python-pack \
quick-highlight \
retab \
diff --git a/plugins/meson.build b/plugins/meson.build
index 4c9406d..584ea2e 100644
--- a/plugins/meson.build
+++ b/plugins/meson.build
@@ -44,6 +44,7 @@ subdir('notification')
subdir('phpize')
subdir('project-tree')
subdir('python-gi-imports-completion')
+subdir('python-langserv')
subdir('python-pack')
subdir('quick-highlight')
subdir('retab')
diff --git a/plugins/python-langserv/Makefile.am b/plugins/python-langserv/Makefile.am
new file mode 100644
index 0000000..515a8b9
--- /dev/null
+++ b/plugins/python-langserv/Makefile.am
@@ -0,0 +1,14 @@
+if ENABLE_PYTHON_LANGSERV_PLUGIN
+
+EXTRA_DIST = $(plugin_DATA)
+
+plugindir = $(libdir)/gnome-builder/plugins
+dist_plugin_DATA = \
+ python-langserv.plugin \
+ python_langserv.py
+
+endif
+
+include $(top_srcdir)/plugins/Makefile.plugin
+
+-include $(top_srcdir)/git.mk
diff --git a/plugins/python-langserv/configure.ac b/plugins/python-langserv/configure.ac
new file mode 100644
index 0000000..3cf8ece
--- /dev/null
+++ b/plugins/python-langserv/configure.ac
@@ -0,0 +1,12 @@
+# --enable-python-langserv-plugin=yes/no
+AC_ARG_ENABLE([python-langserv-plugin],
+ [AS_HELP_STRING([--enable-python-langserv-plugin=@<:@yes/no@:>@],
+ [Build with support for Python Language Server integration.])],
+ [enable_python_langserv_plugin=$enableval],
+ [enable_python_langserv_plugin=yes])
+
+# for if ENABLE_PYTHON_LANGSERV_PLUGIN in Makefile.am
+AM_CONDITIONAL(ENABLE_PYTHON_LANGSERV_PLUGIN, test x$enable_python_langserv_plugin = xyes)
+
+# Ensure our makefile is generated by autoconf
+AC_CONFIG_FILES([plugins/python-langserv/Makefile])
diff --git a/plugins/python-langserv/meson.build b/plugins/python-langserv/meson.build
new file mode 100644
index 0000000..6c739b0
--- /dev/null
+++ b/plugins/python-langserv/meson.build
@@ -0,0 +1,6 @@
+if get_option('with_python_langserv')
+
+install_data('python-langserv.plugin', install_dir: plugindir)
+install_data('python_langserv.py', install_dir: plugindir)
+
+endif
diff --git a/plugins/python-langserv/python-langserv.plugin b/plugins/python-langserv/python-langserv.plugin
new file mode 100644
index 0000000..2eedda7
--- /dev/null
+++ b/plugins/python-langserv/python-langserv.plugin
@@ -0,0 +1,12 @@
+[Plugin]
+Module=python_langserv
+Loader=python3
+Name=Python Language Server Integration
+Description=Provides auto-completion, diagnostics, and other IDE features
+Authors=Patrick Griffis <tingping tingping se>
+Copyright=Copyright © 2017 Patrick Griffis
+Builtin=true
+X-Completion-Provider-Languages=python3,python
+X-Diagnostic-Provider-Languages=python3,python
+X-Formatter-Languages=python3,python
+X-Symbol-Resolver-Languages=python3,python
diff --git a/plugins/python-langserv/python_langserv.py b/plugins/python-langserv/python_langserv.py
new file mode 100644
index 0000000..40db76e
--- /dev/null
+++ b/plugins/python-langserv/python_langserv.py
@@ -0,0 +1,159 @@
+#!/usr/bin/env python3
+
+# python_langserv.py
+#
+# Copyright (C) 2016 Christian Hergert <chergert redhat com>
+# Copyright (C) 2017 Patrick Griffis <tingping tingping se>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+"""
+This plugin provides integration with the Python Language Server.
+It builds off the generic language service components in libide
+by bridging them to our supervised Python Language Server.
+"""
+
+import gi
+import os
+
+gi.require_version('Ide', '1.0')
+gi.require_version('GtkSource', '3.0')
+
+from gi.repository import GLib
+from gi.repository import Gio
+from gi.repository import GObject
+from gi.repository import GtkSource
+from gi.repository import Ide
+
+DEV_MODE = True
+
+class PythonService(Ide.Object, Ide.Service):
+ _client = None
+ _has_started = False
+ _supervisor = None
+
+ @GObject.Property(type=Ide.LangservClient)
+ def client(self):
+ return self._client
+
+ @client.setter
+ def client(self, value):
+ self._client = value
+ self.notify('client')
+
+ def do_stop(self):
+ """
+ Stops the Python Language Server upon request to shutdown the
+ PythonService.
+ """
+ if self._supervisor:
+ supervisor, self._supervisor = self._supervisor, None
+ supervisor.stop()
+
+ def _ensure_started(self):
+ """
+ Start the python service which provides communication with the
+ Python Language Server. We supervise our own instance of the
+ language server and restart it as necessary using the
+ Ide.SubprocessSupervisor.
+
+ Various extension points (diagnostics, symbol providers, etc) use
+ the PythonService to access the python components they need.
+ """
+ # To avoid starting the `pyls` process unconditionally at startup,
+ # we lazily start it when the first provider tries to bind a client
+ # to its :client property.
+ if not self._has_started:
+ self._has_started = True
+
+ # Setup a launcher to spawn the python language server
+ launcher = self._create_launcher()
+ launcher.set_clear_env(False)
+
+ # Locate the directory of the project and run pyls from there.
+ workdir = self.get_context().get_vcs().get_working_directory()
+ launcher.set_cwd(workdir.get_path())
+
+ launcher.push_argv('pyls')
+
+ # Spawn our peer process and monitor it for
+ # crashes. We may need to restart it occasionally.
+ self._supervisor = Ide.SubprocessSupervisor()
+ self._supervisor.connect('spawned', self._pyls_spawned)
+ self._supervisor.set_launcher(launcher)
+ self._supervisor.start()
+
+ def _pyls_spawned(self, supervisor, subprocess):
+ """
+ This callback is executed when the `pyls` process is spawned.
+ We can use the stdin/stdout to create a channel for our
+ LangservClient.
+ """
+ stdin = subprocess.get_stdin_pipe()
+ stdout = subprocess.get_stdout_pipe()
+ io_stream = Gio.SimpleIOStream.new(stdout, stdin)
+
+ if self._client:
+ self._client.stop()
+
+ self._client = Ide.LangservClient.new(self.get_context(), io_stream)
+ self._client.add_language('python3')
+ self._client.add_language('python')
+ self._client.start()
+ self.notify('client')
+
+ def _create_launcher(self):
+ """
+ Creates a launcher to be used by the python service. This needs
+ to be run on the host because we do not currently bundle python
+ inside our flatpak.
+
+ In the future, we might be able to rely on the runtime for
+ the tooling. Maybe even the program if flatpak-builder has
+ prebuilt our dependencies.
+ """
+ flags = Gio.SubprocessFlags.STDIN_PIPE | Gio.SubprocessFlags.STDOUT_PIPE
+ if not DEV_MODE:
+ flags |= Gio.SubprocessFlags.STDERR_SILENCE
+ launcher = Ide.SubprocessLauncher()
+ launcher.set_flags(flags)
+ launcher.set_run_on_host(True)
+ return launcher
+
+ @classmethod
+ def bind_client(klass, provider):
+ """
+ This helper tracks changes to our client as it might happen when
+ our `pyls` process has crashed.
+ """
+ context = provider.get_context()
+ self = context.get_service_typed(PythonService)
+ self._ensure_started()
+ self.bind_property('client', provider, 'client', GObject.BindingFlags.SYNC_CREATE)
+
+class PythonDiagnosticProvider(Ide.LangservDiagnosticProvider):
+ def do_load(self):
+ PythonService.bind_client(self)
+
+class PythonCompletionProvider(Ide.LangservCompletionProvider):
+ def do_load(self, context):
+ PythonService.bind_client(self)
+
+class PythonSymbolResolver(Ide.LangservSymbolResolver):
+ def do_load(self):
+ PythonService.bind_client(self)
+
+class PythonFormatter(Ide.LangservFormatter):
+ def do_load(self):
+ PythonService.bind_client(self)
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