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1 # -*- coding: utf-8 -*- |
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2 |
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3 # Copyright (c) 2010 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> |
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4 # |
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5 |
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6 """ |
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7 Module implementing some common utility functions for the Mercurial package. |
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8 """ |
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9 |
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10 from __future__ import unicode_literals |
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11 try: |
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12 str = unicode |
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13 except NameError: |
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14 pass |
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15 |
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16 import os |
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17 import re |
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18 |
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19 from PyQt5.QtCore import QProcess, QProcessEnvironment, QCoreApplication |
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20 |
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21 import Utilities |
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22 |
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23 |
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24 def getConfigPath(): |
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25 """ |
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26 Public function to get the filename of the config file. |
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27 |
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28 @return filename of the config file (string) |
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29 """ |
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30 if Utilities.isWindowsPlatform(): |
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31 userprofile = os.environ["USERPROFILE"] |
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32 return os.path.join(userprofile, "Mercurial.ini") |
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33 else: |
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34 homedir = Utilities.getHomeDir() |
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35 return os.path.join(homedir, ".hgrc") |
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36 |
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37 |
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38 def prepareProcess(proc, encoding="", language=""): |
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39 """ |
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40 Public function to prepare the given process. |
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41 |
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42 @param proc reference to the process to be prepared (QProcess) |
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43 @param encoding encoding to be used by the process (string) |
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44 @param language language to be set (string) |
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45 """ |
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46 env = QProcessEnvironment.systemEnvironment() |
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47 env.insert("HGPLAIN", '1') |
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48 |
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49 # set the encoding for the process |
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50 if encoding: |
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51 env.insert("HGENCODING", encoding) |
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52 |
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53 # set the language for the process |
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54 if language: |
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55 env.insert("LANGUAGE", language) |
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56 |
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57 proc.setProcessEnvironment(env) |
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58 |
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59 |
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60 def hgVersion(plugin): |
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61 """ |
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62 Public method to determine the Mercurial version. |
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63 |
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64 @param plugin reference to the plugin object |
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65 @type VcsMercurialPlugin |
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66 @return tuple containing the Mercurial version as a string and as a tuple |
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67 and an error message. |
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68 @rtype tuple of str, tuple of int and str |
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69 """ |
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70 versionStr = "" |
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71 version = () |
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72 errorMsg = "" |
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73 |
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74 args = ["version"] |
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75 args.extend(plugin.getGlobalOptions()) |
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76 process = QProcess() |
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77 process.start('hg', args) |
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78 procStarted = process.waitForStarted(5000) |
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79 if procStarted: |
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80 finished = process.waitForFinished(30000) |
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81 if finished and process.exitCode() == 0: |
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82 output = str(process.readAllStandardOutput(), |
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83 plugin.getPreferences("Encoding"), 'replace') |
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84 versionStr = output.splitlines()[0].split()[-1][0:-1] |
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85 v = list(re.match(r'.*?(\d+)\.(\d+)\.?(\d+)?(\+[0-9a-f-]+)?', |
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86 versionStr).groups()) |
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87 if v[-1] is None: |
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88 del v[-1] |
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89 for i in range(3): |
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90 try: |
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91 v[i] = int(v[i]) |
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92 except TypeError: |
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93 v[i] = 0 |
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94 except IndexError: |
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95 v.append(0) |
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96 version = tuple(v) |
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97 else: |
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98 if finished: |
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99 errorMsg = QCoreApplication.translate( |
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100 "HgUtilities", |
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101 "The hg process finished with the exit code {0}")\ |
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102 .format(process.exitCode()) |
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103 else: |
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104 errorMsg = QCoreApplication.translate( |
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105 "HgUtilities", |
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106 "The hg process did not finish within 30s.") |
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107 else: |
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108 errorMsg = QCoreApplication.translate( |
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109 "HgUtilities", |
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110 "Could not start the hg executable.") |
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111 |
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112 return versionStr, version, errorMsg |