diff src/common.cpp @ 370:b9c153e00e84

Move source files to src/

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/common.cpp	Thu Mar 24 10:27:51 2011 +0000
@@ -0,0 +1,259 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    EasyMercurial
+
+    Based on HgExplorer by Jari Korhonen
+    Copyright (c) 2010 Jari Korhonen
+    Copyright (c) 2011 Chris Cannam
+    Copyright (c) 2011 Queen Mary, University of London
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "common.h"
+#include "debug.h"
+
+#include <QFileInfo>
+#include <QProcessEnvironment>
+#include <QStringList>
+#include <QDir>
+#include <QRegExp>
+
+#include <sys/types.h>
+
+#ifdef Q_OS_WIN32
+#define _WIN32_WINNT 0x0500
+#define SECURITY_WIN32 
+#include <windows.h>
+#include <security.h>
+#else
+#include <errno.h>
+#include <pwd.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <signal.h>
+#endif
+
+QString findInPath(QString name, QString installPath, bool executableRequired)
+{
+    bool found = false;
+    if (name != "") {
+        if (name[0] != '/'
+#ifdef Q_OS_WIN32
+            && (QRegExp("^\\w:").indexIn(name) != 0)
+#endif
+            ) {
+#ifdef Q_OS_WIN32
+            QChar pathSep = ';';
+#else
+            QChar pathSep = ':';
+#endif
+            name = QFileInfo(name).fileName();
+            QString path =
+                QProcessEnvironment::systemEnvironment().value("PATH");
+            DEBUG << "findInPath: seeking location for binary " << name
+                  << ": system path is " << path << endl;
+            if (installPath != "") {   
+                DEBUG << "findInPath: install path is " << installPath
+                      << ", adding to system path" << endl;
+                //!!! path = path + pathSep + installPath;
+                path = installPath + pathSep + path;
+            }
+#ifndef Q_OS_WIN32
+            //!!!
+            path = path + ":/usr/local/bin";
+            DEBUG << "... adding /usr/local/bin just in case (fix and add settings dlg please)"
+                    << endl;
+#endif
+            QStringList elements = path.split(pathSep, QString::SkipEmptyParts);
+            foreach (QString element, elements) {
+                QString full = QDir(element).filePath(name);
+                QFileInfo fi(full);
+                DEBUG << "findInPath: looking at " << full << endl;
+                if (fi.exists() && fi.isFile()) {
+                    DEBUG << "findInPath: it's a file" << endl;
+                    if (!executableRequired || fi.isExecutable()) {
+                        name = full;
+                        DEBUG << "findInPath: found at " << name << endl;
+                        found = true;
+                        break;
+                    }
+                }
+            }
+        } else {
+            // absolute path given
+            QFileInfo fi(name);
+            DEBUG << "findInPath: looking at absolute path " << name << endl;
+            if (fi.exists() && fi.isFile()) {
+                DEBUG << "findInPath: it's a file" << endl;
+                if (!executableRequired || fi.isExecutable()) {
+                    DEBUG << "findInPath: found at " << name << endl;
+                    found = true;
+                }
+            }
+        }
+    }
+#ifdef Q_OS_WIN32
+    if (!found) {
+        if (!name.endsWith(".exe")) {
+            return findInPath(name + ".exe", installPath, executableRequired);
+        }
+    }
+#endif
+    if (found) {
+        return name;
+    } else {
+        return "";
+    }
+}
+
+#ifdef Q_OS_WIN32
+QString getUserRealName()
+{
+    TCHAR buf[1024];
+    long unsigned int maxlen = 1000;
+    LPTSTR info = buf;
+
+    if (!GetUserNameEx(NameDisplay, info, &maxlen)) {
+        DEBUG << "GetUserNameEx failed: " << GetLastError() << endl;
+        return "";
+    }
+
+#ifdef UNICODE
+    return QString::fromUtf16((const unsigned short *)info);
+#else
+    return QString::fromLocal8Bit(info);
+#endif
+}
+#else
+#ifdef Q_OS_MAC
+// Nothing here: definition is in common_osx.mm
+#else
+QString getUserRealName()
+{
+    const int maxlen = 1023;
+    char buf[maxlen + 2];
+
+    if (getlogin_r(buf, maxlen)) return "";
+
+    struct passwd *p = getpwnam(buf);
+    if (!p) return "";
+    
+    QString s(p->pw_gecos);
+    if (s != "") s = s.split(',')[0];
+    return s;
+}
+#endif
+#endif
+
+void loseControllingTerminal()
+{
+#ifndef Q_OS_WIN32
+
+    if (!isatty(0)) {
+        DEBUG << "stdin is not a terminal" << endl;
+    } else {
+        DEBUG << "stdin is a terminal, detaching from it" << endl;
+        if (ioctl(0, TIOCNOTTY, NULL) < 0) {
+            perror("ioctl failed");
+            DEBUG << "ioctl for TIOCNOTTY on stdin failed (errno = " << errno << ")" << endl;
+        } else {
+            DEBUG << "ioctl for TIOCNOTTY on stdin succeeded" << endl;
+	    return;
+        }
+    }
+
+    int ttyfd = open("/dev/tty", O_RDWR);
+    if (ttyfd < 0) {
+        DEBUG << "failed to open controlling terminal" << endl;
+    } else {
+        if (ioctl(ttyfd, TIOCNOTTY, NULL) < 0) {
+            perror("ioctl failed");
+            DEBUG << "ioctl for TIOCNOTTY on controlling terminal failed (errno = " << errno << ")" << endl;
+        } else {
+            DEBUG << "ioctl for TIOCNOTTY on controlling terminal succeeded" << endl;
+	    return;
+        }
+    }
+
+#endif
+}
+
+void installSignalHandlers()
+{
+#ifndef Q_OS_WIN32
+    sigset_t sgnals;
+    sigemptyset (&sgnals);
+    sigaddset(&sgnals, SIGHUP);
+    sigaddset(&sgnals, SIGCONT);
+    pthread_sigmask(SIG_BLOCK, &sgnals, 0);
+#endif
+}
+
+FolderStatus getFolderStatus(QString path)
+{
+    if (path != "/" && path.endsWith("/")) {
+        path = path.left(path.length()-1);
+    }
+    DEBUG << "getFolderStatus: " << path << endl;
+    QFileInfo fi(path);
+    if (fi.exists()) {
+        DEBUG << "exists" << endl;
+        QDir dir(path);
+        if (!dir.exists()) { // returns false for files
+            DEBUG << "not directory" << endl;
+            return FolderIsFile;
+        }
+        if (QDir(dir.filePath(".hg")).exists()) {
+            DEBUG << "has repo" << endl;
+            return FolderHasRepo;
+        }
+        return FolderExists;
+    } else {
+        QDir parent = fi.dir();
+        if (parent.exists()) {
+            DEBUG << "parent exists" << endl;
+            return FolderParentExists;
+        }
+        return FolderUnknown;
+    }
+}
+
+QString getContainingRepoFolder(QString path)
+{
+    if (getFolderStatus(path) == FolderHasRepo) return "";
+
+    QFileInfo me(path);
+    QFileInfo parent(me.dir().absolutePath());
+
+    while (me != parent) {
+        QString parentPath = parent.filePath();
+        if (getFolderStatus(parentPath) == FolderHasRepo) {
+            return parentPath;
+        }
+        me = parent;
+        parent = me.dir().absolutePath();
+    }
+
+    return "";
+}
+
+QString xmlEncode(QString s)
+{
+    s
+	.replace("&", "&amp;")
+	.replace("<", "&lt;")
+	.replace(">", "&gt;")
+	.replace("\"", "&quot;")
+	.replace("'", "&apos;");
+
+    return s;
+}