Am Montag, den 24.08.2020, 12:09 +0200 schrieb Pavel Sanda: > I believe it is near to impossible to code a script which would fit > to most people.
Sure but we can provide one that fits wide needs rather than several > E.g. the first run of your script takes 1 min on my machine and won't > find half of my papers because they are outside home dir. By that I > don't mean we should improve it, it's just that interested ppl really > need to customize the code on their own. Well, that's what I meant when I said we could try and use locate if possible (and maybe something comparable on other OSes) and only fall back to the slower method if that doesn't play. The attached version of the python script does that (tentatively). Jürgen
#! /usr/bin/python3
# -*- coding: utf-8 -*-
# file lyxpaperview.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# author Jürgen Spitzmüller
# Full author contact details are available in file CREDITS
# This script searches the home directory for a PDF or PS
# file with a name containing year and author. If found,
# it opens the file in a viewer.
import getopt, os, sys, subprocess
pdf_viewers = ('pdfview', 'kpdf', 'okular', 'qpdfview --unique',
'evince', 'xreader', 'kghostview', 'xpdf', 'SumatraPDF',
'acrobat', 'acroread', 'mupdf',
'gv', 'ghostview', 'AcroRd32', 'gsview64', 'gsview32')
ps_viewers = ("kghostview", "okular", "qpdfview --unique",
"evince", "xreader", "gv", "ghostview -swap",
"gsview64", "gsview32")
def message(message):
sys.stderr.write("lyxpaperview: %s\n" % message)
def error(message):
sys.stderr.write("lyxpaperview error: %s\n" % message)
exit(1)
def usage(prog_name):
msg = "Usage: %s [-v pdfviewer] [-w psviewer] year author"
return msg % prog_name
# Copied from lyxpreview_tools.py
# PATH and PATHEXT environment variables
path = os.environ["PATH"].split(os.pathsep)
extlist = ['']
if "PATHEXT" in os.environ:
extlist += os.environ["PATHEXT"].split(os.pathsep)
extlist.append('.py')
def find_exe(candidates):
global extlist, path
for command in candidates:
prog = command.split()[0]
for directory in path:
for ext in extlist:
full_path = os.path.join(directory, prog + ext)
if os.access(full_path, os.X_OK):
# The thing is in the PATH already (or we wouldn't
# have found it). Return just the basename to avoid
# problems when the path to the executable contains
# spaces.
if full_path.lower().endswith('.py'):
return command.replace(prog, '"%s" "%s"'
% (sys.executable, full_path))
return command
return None
def find_exe_or_terminate(candidates):
exe = find_exe(candidates)
if exe == None:
error("Unable to find executable from '%s'" % " ".join(candidates))
return exe
def find(year, author, path):
if os.name != 'nt':
# use locate if possible (faster)
if find_exe(['locate']):
p1 = subprocess.Popen(['locate', '-i', author], stdout=subprocess.PIPE)
p2 = subprocess.Popen(['grep', '-Ei', '\.pdf$|\.ps$'], stdin=p1.stdout, stdout=subprocess.PIPE)
p3 = subprocess.Popen(['grep', year], stdin=p2.stdout, stdout=subprocess.PIPE)
p4 = subprocess.Popen(['head', '-n 2'], stdin=p3.stdout, stdout=subprocess.PIPE)
p1.stdout.close()
output = p4.communicate()
return output[0].decode("utf8")[:-1]# strip trailing '\n'
for root, dirs, files in os.walk(path):
for fname in files:
lfname = fname.lower()
if lfname.endswith(('.pdf', '.ps')) and lfname.find(author) != -1 and lfname.find(year) != -1:
return os.path.join(root, fname)
return ""
def main(argv):
progname = argv[0]
opts, args = getopt.getopt(sys.argv[1:], "v:w:")
pdfviewer = ""
psviewer = ""
for o, v in opts:
if o == "-v":
pdfviewer = v
if o == "-w":
psviewer = v
if len(args) != 2:
error(usage(progname))
year = args[0]
author = args[1]
result = find(year, author.lower(), path = os.environ["HOME"])
if result == "":
message("no document found!")
return 0
else:
message("found document %s" % result)
viewer = ""
if result.lower().endswith('.ps'):
if psviewer == "":
viewer = find_exe_or_terminate(ps_viewers)
else:
viewer = psviewer
else:
if pdfviewer == "":
viewer = find_exe_or_terminate(pdf_viewers)
else:
viewer = pdfviewer
subprocess.call([viewer, result])
return 0
if __name__ == "__main__":
main(sys.argv)
signature.asc
Description: This is a digitally signed message part
-- lyx-devel mailing list lyx-devel@lists.lyx.org http://lists.lyx.org/mailman/listinfo/lyx-devel
