mirror
/
inkstitch
kopia lustrzana https://github.com/inkstitch/inkstitch
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność
inkstitch/lib/debug.py

266 wiersze
9.2 KiB
Python
Czysty Wina Historia

# Authors: see git history
#
# Copyright (c) 2010 Authors
# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
import atexit
import os
import socket
import sys
import time
from contextlib import contextmanager
from datetime import datetime
import inkex
from lxml import etree
from .svg import line_strings_to_path
from .svg.tags import INKSCAPE_GROUPMODE, INKSCAPE_LABEL
def check_enabled(func):
def decorated(self, *args, **kwargs):
if self.enabled:
func(self, *args, **kwargs)
return decorated
class Debug(object):
def __init__(self):
self.enabled = False
self.last_log_time = None
self.current_layer = None
self.group_stack = []
def enable(self):
self.enabled = True
self.init_log()
self.init_debugger()
self.init_svg()
def init_log(self):
self.log_file = os.path.join(os.path.dirname(os.path.dirname(__file__)), "debug.log")
# delete old content
with open(self.log_file, "w"):
pass
self.log("Debug logging enabled.")
def init_debugger(self):
# How to debug Ink/Stitch with LiClipse:
#
# 1. Install LiClipse (liclipse.com) -- no need to install Eclipse first
# 2. Start debug server as described here: http://www.pydev.org/manual_adv_remote_debugger.html
# * follow the "Note:" to enable the debug server menu item
# 3. Create a file named "DEBUG" next to inkstitch.py in your git clone.
# 4. Run any extension and PyDev will start debugging.
###
# To debug with PyCharm:
# You must use the PyCharm Professional Edition and _not_ the Community
# Edition. Jetbrains has chosen to make remote debugging a Pro feature.
# To debug Inkscape python extensions, the extension code and Inkscape run
# independently of PyCharm, and only communicate with the debugger via a
# TCP socket. Thus, debugging is "remote," even if it's on the same machine,
# connected via the loopback interface.
#
# 1. pip install pydev_pycharm
#
# pydev_pycharm is versioned frequently. Jetbrains suggests installing
# a version at least compatible with the current build. For example, if your
# PyCharm build, as found in menu PyCharm -> About Pycharm is 223.8617.48,
# you could do:
# pip install pydevd-pycharm~=223.8617.48
#
# 2. From the Pycharm "Run" menu, choose "Edit Configurations..." and create a new
# configuration. Set "IDE host name:" to "localhost" and "Port:" to 5678.
# You can leave the default settings for all other choices.
#
# 3. Touch a file named "DEBUG" at the top of your git repo, as above.
#
# 4. Create a symbolic link in the Inkscape extensions directory to the
# top-level directory of your git repo. On a mac, for example:
# cd ~/Library/Application\ Support/org.inkscape.Inkscape/config/inkscape/extensions/
# ln -s <full path to the top level of your Ink/Stitch git repo>
# On other architectures it may be:
# cd ~/.config/inkscape/extensions
# ln -s <full path to the top level of your Ink/Stitch git repo>
# Remove any other Ink/Stitch files or references to Ink/Stitch from the
# extensions directory, or you'll see duplicate entries in the Ink/Stitch
# extensions menu in Inkscape.
#
# 5. In the execution env for Inkscape, set the environment variable
# PYCHARM_REMOTE_DEBUG to any value, and launch Inkscape. If you're starting
# Inkscape from the PyCharm Terminal pane, you can do:
# export PYCHARM_REMOTE_DEBUG=true;inkscape
#
# 6. In Pycharm, either click on the green "bug" icon if visible in the upper
# right or press Ctrl-D to start debugging.The PyCharm debugger pane will
# display the message "Waiting for process connection..."
#
# 7. Do some action in Inkscape which invokes Ink/Stitch extension code, and the
# debugger will be triggered. If you've left "Suspend after connect" checked
# in the Run configuration, PyCharm will pause in the "self.log("Enabled
# PyDev debugger.)" statement, below. Uncheck the box to have it continue
# automatically to your first set breakpoint.
try:
if 'PYCHARM_REMOTE_DEBUG' in os.environ:
import pydevd_pycharm
else:
import pydevd
except ImportError:
self.log("importing pydevd failed (debugger disabled)")
# pydevd likes to shout about errors to stderr whether I want it to or not
with open(os.devnull, 'w') as devnull:
stderr = sys.stderr
sys.stderr = devnull
try:
if 'PYCHARM_REMOTE_DEBUG' in os.environ:
pydevd_pycharm.settrace('localhost', port=5678, stdoutToServer=True,
stderrToServer=True)
else:
pydevd.settrace()
except socket.error as error:
self.log("Debugging: connection to pydevd failed: %s", error)
self.log("Be sure to run 'Start debugging server' in PyDev to enable debugging.")
else:
self.log("Enabled PyDev debugger.")
sys.stderr = stderr
def init_svg(self):
self.svg = etree.Element("svg", nsmap=inkex.NSS)
atexit.register(self.save_svg)
def save_svg(self):
tree = etree.ElementTree(self.svg)
debug_svg = os.path.join(os.path.dirname(os.path.dirname(__file__)), "debug.svg")
tree.write(debug_svg)
@check_enabled
def add_layer(self, name="Debug"):
layer = etree.Element("g", {
INKSCAPE_GROUPMODE: "layer",
INKSCAPE_LABEL: name,
"style": "display: none"
})
self.svg.append(layer)
self.current_layer = layer
@check_enabled
def open_group(self, name="Group"):
group = etree.Element("g", {
INKSCAPE_LABEL: name
})
self.log_svg_element(group)
self.group_stack.append(group)
@check_enabled
def close_group(self):
if self.group_stack:
self.group_stack.pop()
@check_enabled
def log(self, message, *args):
if self.last_log_time:
message = "(+%s) %s" % (datetime.now() - self.last_log_time, message)
self.raw_log(message, *args)
def raw_log(self, message, *args):
now = datetime.now()
timestamp = now.isoformat()
self.last_log_time = now
with open(self.log_file, "a") as logfile:
print(timestamp, message % args, file=logfile)
logfile.flush()
def time(self, func):
def decorated(*args, **kwargs):
if self.enabled:
self.raw_log("entering %s()", func.__name__)
start = time.time()
result = func(*args, **kwargs)
if self.enabled:
end = time.time()
self.raw_log("leaving %s(), duration = %s", func.__name__, round(end - start, 6))
return result
return decorated
@check_enabled
def log_svg_element(self, element):
if self.current_layer is None:
self.add_layer()
if self.group_stack:
self.group_stack[-1].append(element)
else:
self.current_layer.append(element)
@check_enabled
def log_line_string(self, line_string, name=None, color=None):
"""Add a Shapely LineString to the SVG log."""
self.log_line_strings([line_string], name, color)
@check_enabled
def log_line_strings(self, line_strings, name=None, color=None):
path = line_strings_to_path(line_strings)
path.set('style', str(inkex.Style({"stroke": color or "#000000", "stroke-width": "0.3", "fill": None})))
if name is not None:
path.set(INKSCAPE_LABEL, name)
self.log_svg_element(path)
@check_enabled
def log_line(self, start, end, name="line", color=None):
self.log_svg_element(etree.Element("path", {
"d": "M%s,%s %s,%s" % (start + end),
"style": str(inkex.Style({"stroke": color or "#000000", "stroke-width": "0.3", "fill": None})),
INKSCAPE_LABEL: name
}))
@check_enabled
def log_graph(self, graph, name="Graph", color=None):
d = ""
for edge in graph.edges:
d += "M%s,%s %s,%s" % (edge[0] + edge[1])
self.log_svg_element(etree.Element("path", {
"d": d,
"style": str(inkex.Style({"stroke": color or "#000000", "stroke-width": "0.3", "fill": None})),
INKSCAPE_LABEL: name
}))
@contextmanager
def time_this(self, label="code block"):
if self.enabled:
start = time.time()
self.raw_log("begin %s", label)
yield
if self.enabled:
self.raw_log("completed %s, duration = %s", label, time.time() - start)
debug = Debug()
def enable():
debug.enable()
Reference in New Issue View Git Blame Kopiuj bezpośredni odnośnik