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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 EasyMercurial
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5
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6 Based on HgExplorer by Jari Korhonen
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7 Copyright (c) 2010 Jari Korhonen
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8 Copyright (c) 2010 Chris Cannam
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9 Copyright (c) 2010 Queen Mary, University of London
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10
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11 This program is free software; you can redistribute it and/or
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12 modify it under the terms of the GNU General Public License as
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13 published by the Free Software Foundation; either version 2 of the
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14 License, or (at your option) any later version. See the file
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15 COPYING included with this distribution for more information.
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16 */
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17
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18 #include "common.h"
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19 #include "debug.h"
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20
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21 #include <QFileInfo>
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22 #include <QProcessEnvironment>
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23 #include <QStringList>
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24 #include <QDir>
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25
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26 #include <sys/types.h>
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27
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28 #ifdef Q_OS_WIN32
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29 #define _WIN32_WINNT 0x0500
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30 #define SECURITY_WIN32
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31 #include <windows.h>
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32 #include <security.h>
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33 #else
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34 #include <errno.h>
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35 #include <pwd.h>
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36 #include <unistd.h>
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37 #include <sys/ioctl.h>
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38 #include <sys/types.h>
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39 #include <sys/stat.h>
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40 #include <fcntl.h>
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41 #include <signal.h>
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42 #endif
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43
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44 QString findExecutable(QString name)
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45 {
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46 bool found = false;
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47 if (name != "") {
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48 if (name[0] != '/') {
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49 #ifdef Q_OS_WIN32
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50 QChar pathSep = ';';
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51 #else
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52 QChar pathSep = ':';
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53 #endif
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54 name = QFileInfo(name).fileName();
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55 QString path =
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56 QProcessEnvironment::systemEnvironment().value("PATH");
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57 DEBUG << "findExecutable: seeking location for binary " << name
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58 << ": system path is " << path << endl;
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59 #ifndef Q_OS_WIN32
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60 path = path + ":/usr/local/bin";
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61 DEBUG << "... adding /usr/local/bin just in case (fix and add settings dlg please)"
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62 << endl;
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63 #endif
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64 QStringList elements = path.split(pathSep, QString::SkipEmptyParts);
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65 foreach (QString element, elements) {
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66 QString full = QDir(element).filePath(name);
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67 QFileInfo fi(full);
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68 if (fi.exists() && fi.isFile() && fi.isExecutable()) {
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69 name = full;
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70 found = true;
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71 break;
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72 }
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73 }
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74 }
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75 }
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76 #ifdef Q_OS_WIN32
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77 if (!found) {
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78 if (!name.endsWith(".exe")) {
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79 return findExecutable(name + ".exe");
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80 }
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81 }
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82 #endif
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83 return name;
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84 }
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85
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86 #ifdef Q_OS_WIN32
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87 QString getUserRealName()
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88 {
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89 TCHAR buf[1024];
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90 long unsigned int maxlen = 1000;
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91 LPTSTR info = buf;
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92
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93 if (!GetUserNameEx(NameDisplay, info, &maxlen)) {
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94 DEBUG << "GetUserNameEx failed: " << GetLastError() << endl;
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95 return "";
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96 }
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97
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98 #ifdef UNICODE
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99 return QString::fromUtf16((const unsigned short *)info);
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100 #else
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101 return QString::fromLocal8Bit(info);
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102 #endif
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103 }
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104 #else
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105 #ifdef Q_OS_MAC
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106 // Nothing here: definition is in common_osx.mm
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107 #else
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108 QString getUserRealName()
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109 {
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110 const int maxlen = 1023;
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111 char buf[maxlen + 2];
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112
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113 if (getlogin_r(buf, maxlen)) return "";
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114
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115 struct passwd *p = getpwnam(buf);
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116 if (!p) return "";
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117
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118 QString s(p->pw_gecos);
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119 if (s != "") s = s.split(',')[0];
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120 return s;
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121 }
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122 #endif
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123 #endif
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124
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125 void loseControllingTerminal()
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126 {
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127 #ifndef Q_OS_WIN32
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128
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129 if (!isatty(0)) {
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130 DEBUG << "stdin is not a terminal" << endl;
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131 } else {
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132 DEBUG << "stdin is a terminal, detaching from it" << endl;
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133 if (ioctl(0, TIOCNOTTY, NULL) < 0) {
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134 perror("ioctl failed");
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135 DEBUG << "ioctl for TIOCNOTTY on stdin failed (errno = " << errno << ")" << endl;
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136 } else {
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137 DEBUG << "ioctl for TIOCNOTTY on stdin succeeded" << endl;
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138 return;
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139 }
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140 }
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141
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142 int ttyfd = open("/dev/tty", O_RDWR);
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143 if (ttyfd < 0) {
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144 DEBUG << "failed to open controlling terminal" << endl;
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145 } else {
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146 if (ioctl(ttyfd, TIOCNOTTY, NULL) < 0) {
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147 perror("ioctl failed");
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148 DEBUG << "ioctl for TIOCNOTTY on controlling terminal failed (errno = " << errno << ")" << endl;
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149 } else {
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150 DEBUG << "ioctl for TIOCNOTTY on controlling terminal succeeded" << endl;
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151 return;
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152 }
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153 }
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154
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155 #endif
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156 }
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157
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158 void installSignalHandlers()
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159 {
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160 #ifndef Q_OS_WIN32
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161 sigset_t sgnals;
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162 sigemptyset (&sgnals);
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163 sigaddset(&sgnals, SIGHUP);
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164 sigaddset(&sgnals, SIGCONT);
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165 pthread_sigmask(SIG_BLOCK, &sgnals, 0);
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166 #endif
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167 }
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168
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169 FolderStatus getFolderStatus(QString path)
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170 {
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171 if (path != "/" && path.endsWith("/")) {
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172 path = path.left(path.length()-1);
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173 }
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174 DEBUG << "getFolderStatus: " << path << endl;
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175 QFileInfo fi(path);
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176 if (fi.exists()) {
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177 DEBUG << "exists" << endl;
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178 QDir dir(path);
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179 if (!dir.exists()) { // returns false for files
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180 DEBUG << "not directory" << endl;
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181 return FolderIsFile;
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182 }
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183 if (QDir(dir.filePath(".hg")).exists()) {
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184 DEBUG << "has repo" << endl;
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185 return FolderHasRepo;
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186 }
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187 return FolderExists;
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188 } else {
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189 QDir parent = fi.dir();
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190 if (parent.exists()) {
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191 DEBUG << "parent exists" << endl;
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192 return FolderParentExists;
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193 }
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194 return FolderUnknown;
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195 }
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196 }
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197
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198 QString getContainingRepoFolder(QString path)
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199 {
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200 if (getFolderStatus(path) == FolderHasRepo) return "";
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201
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202 QFileInfo me(path);
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203 QFileInfo parent(me.dir().absolutePath());
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204
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205 while (me != parent) {
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206 QString parentPath = parent.filePath();
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207 if (getFolderStatus(parentPath) == FolderHasRepo) {
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208 return parentPath;
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209 }
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210 me = parent;
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211 parent = me.dir().absolutePath();
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212 }
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213
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214 return "";
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215 }
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216
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217 QString xmlEncode(QString s)
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218 {
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219 s
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220 .replace("&", "&")
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221 .replace("<", "<")
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222 .replace(">", ">")
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223 .replace("\"", """)
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224 .replace("'", "'");
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225
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226 return s;
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227 }
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