#!BPY

"""
Name: 'System Information...'
Blender: 236
Group: 'HelpSystem'
Tooltip: 'Information about your Blender environment, useful to diagnose problems.'
"""

__author__ = "Willian P. Germano"
__url__ = ("blender", "elysiun")
__version__ = "1.1"
__bpydoc__ = """\
This script creates a text in Blender's Text Editor with information
about your OS, video card, OpenGL driver, Blender and Python versions,
script related paths and more.

If you are experiencing trouble running Blender itself or any Blender Python
script, this information can be useful to fix any problems or at least for
online searches (like checking if there are known issues related to your
video card) or to get help from other users or the program's developers.
"""

# $Id$
#
# --------------------------------------------------------------------------
# sysinfo.py version 1.1 Mar 20, 2005
# --------------------------------------------------------------------------
# ***** BEGIN GPL LICENSE BLOCK *****
#
# Copyright (C) 2004: Willian P. Germano, wgermano _at_ ig.com.br
#
# 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 2
# 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, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
# --------------------------------------------------------------------------

import Blender
import Blender.sys as bsys
from Blender.BGL import *
import sys

Blender.Window.WaitCursor(1)
# has_textwrap = 1 # see commented code below
output_filename = "system-info.txt"
warnings = 0
notices = 0 # non critical warnings

def cutPoint(text, length):
	"Returns position of the last space found before 'length' chars"
	l = length
	c = text[l]
	while c != ' ':
		l -= 1
		if l == 0: return length # no space found
		c = text[l]
	return l

def textWrap(text, length = 70):
	lines = []
	while len(text) > 70:
		cpt = cutPoint(text, length)
		line, text = text[:cpt], text[cpt + 1:]
		lines.append(line)
	lines.append(text)
	return lines

## Better use our own text wrap functions here
#try:
#  import textwrap
#except:
#  has_textwrap = 0
#  msg = sys.exc_info()[1].__str__().split()[3]
#  Blender.Draw.PupMenu("Python error:|This script requires the %s module" %msg)

version = Blender.Get('version') / 100.0
header = "=  Blender %s System Information  =" % version
lilies = len(header)*"="+"\n"
header = lilies + header + "\n" + lilies

output = Blender.Text.New(output_filename)

output.write(header + "\n\n")

output.write("Platform: %s\n========\n\n" % sys.platform)

output.write("Python:\n======\n\n")
output.write("- Version: %s\n\n" % sys.version)
output.write("- Paths:\n\n")
for p in sys.path:
	output.write(p + '\n')

output.write("\n- Directories:")

dirlist = [
	['homedir', 'Blender home dir', 1],
	['scriptsdir', 'Default dir for scripts', 1],
	['datadir', 'Default "bpydata/" data dir for scripts', 1],
	['uscriptsdir', 'User defined dir for scripts', 0],
	['udatadir', 'Data dir "bpydata/" inside user defined dir', 0]
]

has_dir = {}

for dir in dirlist:
	dirname, dirstr, is_critical = dir
	dirpath = Blender.Get(dirname)
	output.write("\n\n %s:\n" % dirstr)
	if not dirpath:
		has_dir[dirname] = False
		if is_critical:
			warnings += 1
			output.write("  <WARNING> -- not found")
		else:
			notices += 1
			output.write("  <NOTICE> -- not found")
	else:
		output.write("  %s" % dirpath)
		has_dir[dirname] = True

if not has_dir['homedir']:
	outmsg = """

<WARNING> - Blender home dir not found!
  This should probably be "<path>/.blender/"
  where <path> is usually the user's home dir.

  Blender's home dir is where entries like:
    folders scripts/, plugins/ and locale/ and
    files .Blanguages and .bfont.ttf
  are located.

  It's also where Blender stores the Bpymenus file
  with information about registered scripts, so it
  only needs to scan scripts dir(s) when they are
  modified.
"""
	output.write(outmsg)

has_uconfdir = False
if has_dir['udatadir']:
	uconfigdir = bsys.join(Blender.Get('udatadir'), 'config')
	output.write("\n\n User defined config data dir:")
	if bsys.exists(uconfigdir):
		has_uconfdir = True
		output.write("  %s" % uconfigdir)
	else:
		notices += 1
		output.write("""
  <NOTICE> -- not found.
  bpydata/config/ should be inside the user defined scripts dir.
  It's used by Blender to store scripts configuration data.
  (Since it is on the user defined dir, a new Blender installation
  won't overwrite the data.)
""")

configdir = bsys.join(Blender.Get('datadir'), 'config')
output.write('\n\n Default config data "bpydata/config/" dir:\n')
if bsys.exists(configdir):
	output.write("  %s" % configdir)
else:
	warnings += 1
	output.write("""<WARNING> -- not found.
  config/ should be inside the default scripts *data dir*.
  It's used by Blender to store scripts configuration data
  when <user defined scripts dir>/bpydata/config/ dir is
  not available.
""")

if has_uconfdir:
	output.write("""

The user defined config dir will be used.
""")

cvsdir = 'release/scripts'
if bsys.dirsep == '\\': cvsdir = cvsdir.replace('/','\\')
sdir = Blender.Get('scriptsdir')
if sdir and sdir.find(cvsdir) >= 0:
	if has_uconfdir:
		notices += 1
		output.write("\n\n<NOTICE>:\n")
	else:
		warnings += 1
		output.write("\n\n<WARNING>:\n")
	output.write("""
It seems this Blender binary is located in its cvs source tree.

It's recommended that the release/scripts/ dir tree is copied
to your blender home dir.
""")
	if not has_uconfdir:
		output.write("""
Since you also don't have a user defined scripts dir with the
bpydata/config dir inside it, it will not be possible to save
and restore scripts configuration data files, since writing
to a dir inside a cvs tree is not a good idea and is avoided. 
""")

missing_mods = [] # missing basic modules

try:
	from BPyBlender import basic_modules
	for m in basic_modules:
		try: exec ("import %s" % m)
		except: missing_mods.append(m)

	if missing_mods:
		outmsg = """

<WARNING>:

Some expected modules were not found.
Because of that some scripts bundled with Blender may not work.
Please read the FAQ in the Readme.html file shipped with Blender
for information about how to fix the problem.
Missing modules:
"""
		output.write(outmsg)
		warnings += 1
		for m in missing_mods:
			output.write('-> ' + m + '\n')
		if 'BPyRegistry' in missing_mods:
			output.write("""
Module BPyRegistry.py is missing!
Without this module it's not possible to save and restore
scripts configuration data files.
""")

	else:
		output.write("\n\n- Modules: all basic ones were found.\n")

except ImportError:
	output.write("\n\n<WARNING>:\n  Couldn't find BPyBlender.py in scripts/bpymodules/ dir.")
	output.write("\n  Basic modules availability won't be tested.\n")
	warnings += 1

output.write("\nOpenGL:\n======\n\n")
output.write("- Renderer:   %s\n" % glGetString(GL_RENDERER))
output.write("- Vendor:     %s\n" % glGetString(GL_VENDOR))
output.write("- Version:    %s\n\n" % glGetString(GL_VERSION))
output.write("- Extensions:\n\n")

glext = glGetString(GL_EXTENSIONS)
glext = textWrap(glext, 70)

for l in glext:
	output.write(l + "\n")

output.write("\n\n- Simplistic almost useless benchmark:\n\n")
t = Blender.sys.time()
nredraws = 10
for i in range(nredraws):
	Blender.Redraw(-1) # redraw all windows
result = Blender.sys.time() - t
output.write("Redrawing all areas %s times took %.4f seconds.\n" % (nredraws, result))

if warnings or notices:
	output.write("\n%s%s\n" % (warnings*"#", notices*"."))
	if warnings:
		output.write("\n(*) Found %d warning" % warnings)
		if (warnings > 1): output.write("s") # (blush)
		output.write(", documented in the text above.\n")
	if notices:
		output.write("\n(*) Found %d notice" % notices)
		if (notices > 1): output.write("s") # (blush)
		output.write(", documented in the text above.\n")

else: output.write("\n==\nNo problems were found (scroll up for details).")

Blender.Window.WaitCursor(0)
exitmsg = "Done!|Please check the text %s in the Text Editor window" % output.name
Blender.Draw.PupMenu(exitmsg)
