1""" 

2@file 

3@brief Various functions to install `Putty <http://www.putty.org/>`_. 

4""" 

5from __future__ import print_function 

6import sys 

7import re 

8import os 

9 

10from .install_custom import download_page, download_file 

11 

12if sys.version_info[0] == 2: 

13 FileNotFoundError = Exception 

14 

15 

16def IsPuttyInstalled(dest_folder): 

17 """ 

18 check if Scite was already installed 

19 

20 @param dest_folder where it was installed 

21 @return boolean 

22 """ 

23 if sys.platform.startswith("win"): 

24 file = os.path.join(dest_folder, "putty.exe") 

25 return os.path.exists(file) 

26 else: 

27 raise NotImplementedError("not available on platform " + sys.platform) 

28 

29 

30def install_putty(dest_folder=".", fLOG=print, install=True, version=None): 

31 """ 

32 install `Putty <http://www.putty.org/>`_ (only on Windows) 

33 

34 @param dest_folder where to download putty 

35 @param fLOG logging function 

36 @param install install (otherwise only download) 

37 @param version version to install (unused) 

38 @return temporary file 

39 """ 

40 if version is not None: 

41 raise ValueError("cannot specify a version") 

42 if IsPuttyInstalled(dest_folder): 

43 return os.path.join( 

44 os.path.abspath(dest_folder), "putty.exe") 

45 

46 if not sys.platform.startswith("win"): 

47 raise NotImplementedError( 

48 "SciTE can only be installed on Windows at the moment") 

49 

50 url = "http://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html" 

51 page = download_page(url) 

52 

53 reg = re.compile( 

54 "<a href=\\\"(.*latest/w64/putty.exe)\\\"><code>putty.exe</code></a>") 

55 find = reg.findall(page) 

56 if len(find) != 1: 

57 mes = "unable to find the file to download at {0}\nfound: {1}\npattern: {2}\nOUT:\n{3}".format( 

58 url, len(find), reg.pattern, "\n".join(find)) 

59 raise Exception(mes) 

60 

61 # should be something like http://www.scintilla.org/wscite356.zip 

62 newurl = find[0] 

63 outfile = os.path.join(dest_folder, "putty.exe") 

64 if not os.path.exists(outfile): 

65 try: 

66 download_file(newurl, outfile) 

67 except Exception as e: 

68 raise Exception("unable to download\n{0}\nto{1}".format( 

69 newurl, outfile)) from e 

70 

71 if not os.path.exists(outfile): 

72 raise FileNotFoundError(outfile) 

73 

74 return outfile