feature #32: debug mode

This commit is contained in:
Johann Dreo 2013-05-26 21:13:13 +02:00
commit 81e2cc98ad

View file

@ -12,6 +12,7 @@ import os
import glob
import math
import importlib
import logging
###############################################################################
# Ressource parsing helpers
@ -27,6 +28,7 @@ def parse_gimp_palette( filename ):
(name, [ [R0,G0,B0], [R1,G1,B1], ... , [RN,GN,BN] ])
"""
logging.debug("parse GIMP palette file: %s" % filename)
fd = open(filename)
# remove path and extension, only keep the file name itself
name = os.path.splitext( os.path.basename(filename ))[0]
@ -51,6 +53,7 @@ def parse_gimp_palette( filename ):
colors = [ int(c) for c in line.split()[:columns] ]
palette.append( colors )
logging.debug("parsed %i RGB colors from palette %s" % (len(palette), name) )
return name,palette
@ -148,6 +151,7 @@ def load_themes( themes_dir):
for f in glob.iglob("colout_*.py"):
module = ".".join(f.split(".")[:-1]) # remove extension
name = "_".join(module.split("_")[1:]) # remove the prefix
logging.debug("load theme %s" % name)
themes[name] = importlib.import_module(module)
@ -164,7 +168,9 @@ def load_palettes( palettes_dir ):
# Convert the palette to ANSI
ansi_palette = [ rgb_to_ansi(r,g,b) for r,g,b in palette ]
# Compress it so that there isn't two consecutive identical colors
colormaps[name] = uniq( ansi_palette )
compressed = uniq(ansi_palette)
logging.debug("load %i ANSI colors in palette %s" % (len(compressed), name))
colormaps[name] = compressed
def load_lexers():
@ -178,13 +184,17 @@ def load_lexers():
from pygments.formatters import Terminal256Formatter
from pygments.formatters import TerminalFormatter
except ImportError:
logging.warning("the pygments module has not been found, syntax coloring is not available")
pass
else:
for lexer in get_all_lexers():
try:
lexers.append(lexer[1][0])
except IndexError:
logging.warning("cannot load lexer: %s" % lexer[1][0])
pass
else:
logging.debug("loaded lexer %s" % lexer[1][0])
lexers.sort()
@ -436,6 +446,7 @@ def colortheme(item, theme):
Used to read themes, which can be something like:
[ [ pattern, colors, styles ], [ pattern ], [ pattern, colors ] ]
"""
logging.debug("use a theme with %i arguments" % len(theme))
for args in theme:
item = colorup(item, *args)
return item
@ -589,20 +600,23 @@ def __args_parse__(argv, usage=""):
on multiple lines).")
parser.add_argument("-t", "--theme", action="store_true",
help="Interpret REGEX as a theme. \
Available themes: "+", ".join(themes.keys()))
help="Interpret REGEX as a theme.")# \
#Available themes: "+", ".join(themes.keys()))
parser.add_argument("--debug", action="store_true",
help="Debug mode: print what's going on internally, useful if you want to check what features are available.")
parser.add_argument("-s", "--source", action="store_true",
help="Interpret REGEX as a source code readable by the Pygments library. \
If the first letter of PATTERN is upper case, use the 256 colors mode, \
if it is lower case, use the 8 colors mode. \
Interpret COLOR as a Pygments style. \
Available languages: "+", ".join(lexers))
Interpret COLOR as a Pygments style.")# \
#Available languages: "+", ".join(lexers))
args = parser.parse_args()
return args.pattern[0], args.color, args.style, args.groups, \
args.colormap, args.theme, args.source, args.all, args.scale
args.colormap, args.theme, args.source, args.all, args.scale, args.debug
def write_all( as_all, stream_in, stream_out, function, *args ):
@ -617,22 +631,15 @@ def write_all( as_all, stream_in, stream_out, function, *args ):
if __name__ == "__main__":
global debug
error_codes = {"UnknownColor":1, "DuplicatedPalette":2}
try:
# Search for available resources files (themes, palettes)
# in the same dir as the colout.py script
res_dir = os.path.dirname(os.path.realpath(__file__))
# this must be called before args parsing, because the help can list available resources
load_resources( res_dir, res_dir )
except DuplicatedPalette as e:
print( "ERROR in colout, duplicated palette file name: %s" % e )
sys.exit( error_codes["DuplicatedPalette"] )
usage = "A regular expression based formatter that color up an arbitrary text stream."
#####################
# Arguments parsing #
#####################
try:
import argparse
@ -643,35 +650,66 @@ if __name__ == "__main__":
# if argparse is available
else:
pattern, color, style, on_groups, as_colormap, as_theme, as_source, as_all, myscale \
pattern, color, style, on_groups, as_colormap, as_theme, as_source, as_all, myscale, debug \
= __args_parse__(sys.argv, usage)
if debug:
lvl = logging.DEBUG
else:
lvl = logging.ERROR
logging.basicConfig(format='[colout] %(levelname)s: %(message)s', level=lvl)
##################
# Load resources #
##################
try:
# Search for available resources files (themes, palettes)
# in the same dir as the colout.py script
res_dir = os.path.dirname(os.path.realpath(__file__))
# this must be called before args parsing, because the help can list available resources
load_resources( res_dir, res_dir )
except DuplicatedPalette as e:
logging.error( "duplicated palette file name: %s" % e )
sys.exit( error_codes["DuplicatedPalette"] )
try:
if myscale:
scale = map(int,myscale.split(","))
logging.debug("user-defined scale: %i,%i" % (scale))
# use the generator: output lines as they come
if as_colormap is True and color != "rainbow":
colormap = color.split(",") # replace the colormap by the given colors
color = "colormap" # use the keyword to switch to colormap instead of list of colors
logging.debug("used-defined colormap: %s" % ",".join(colormap) )
# if theme
if as_theme:
logging.debug( "asked for theme: %s" % pattern )
assert(pattern in themes.keys())
write_all( as_all, sys.stdin, sys.stdout, colortheme, themes[pattern].theme() )
# if pygments
elif as_source:
logging.debug("asked for lexer: %s" % pattern.lower())
assert(pattern.lower() in lexers)
lexer = get_lexer_by_name(pattern.lower())
# Python => 256 colors, python => 8 colors
ask_256 = pattern[0].isupper()
if ask_256:
logging.debug("256 colors mode")
try:
formatter = Terminal256Formatter(style=color)
except: # style not found
logging.warning("style %s not found, fallback to default style" % color)
formatter = Terminal256Formatter()
else:
logging.debug("8 colors mode")
formatter = TerminalFormatter()
write_all( as_all, sys.stdin, sys.stdout, highlight, lexer, formatter )
@ -681,6 +719,6 @@ if __name__ == "__main__":
write_all( as_all, sys.stdin, sys.stdout, colorup, pattern, color, style, on_groups )
except UnknownColor as e:
print("ERROR in colout, unknown color: %s" % e )
logging.error("unknown color: %s" % e )
sys.exit( error_codes["UnknownColor"] )