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+/***************************************************************************
+ *
+ * Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ***************************************************************************/
+
+#include <kstandarddirs.h>
+#include "configfrontend.h"
+
+/**
+ * Class constructor.
+ * @param bAutoDelete True to destroy the object when the process ends,
+ * false otherwise
+ */
+ConfigFrontend::ConfigFrontend(bool bAutoDelete) :
+ Frontend(1, bAutoDelete)
+{
+}
+
+/**
+ * Class destructor.
+ */
+ConfigFrontend::~ConfigFrontend()
+{
+}
+
+/**
+ * Executes the script using the "sh" shell.
+ * @param sCscopePath If given, overrides the automatic check for Cscope's
+ * path
+ * @param sCtagsPath If given, overrides the automatic check for Ctags'
+ * path
+ * @param sDotPath If given, overrides the automatic check for Dot's
+ * path
+ * @param bCscopeOptsOnly Only verify cscope's path and options
+ * @return true if successful, false otherwise
+ */
+bool ConfigFrontend::run(const QString& sCscopePath,
+ const QString& sCtagsPath, const QString& sDotPath,
+ bool bCscopeOptsOnly)
+{
+ QStringList slArgs;
+ KStandardDirs sd;
+ QString sScript;
+
+ // Execute using the user's shell
+ setUseShell(true);
+
+ // Find the configuration script
+ sScript = sd.findResource("data", "kscope/kscope_config");
+ if (sScript.isEmpty())
+ return false;
+
+ // Set command line arguments
+ slArgs.append("sh");
+ slArgs.append(sScript);
+
+ if (bCscopeOptsOnly)
+ slArgs.append("-co");
+
+ // Initialise environment
+ setEnvironment("CSCOPE_PATH", sCscopePath);
+ setEnvironment("CTAGS_PATH", sCtagsPath);
+ setEnvironment("DOT_PATH", sDotPath);
+
+ // Parser initialisation
+ m_delim = Newline;
+ m_nNextResult = CscopePath;
+
+ if (!Frontend::run("sh", slArgs))
+ return false;
+
+ emit test(CscopePath);
+ return true;
+}
+
+/**
+ * Handles tokens generated by the script.
+ * Each token represents a line in the script's output, and is the result of
+ * a different test.
+ * @param sToken The generated token
+ */
+Frontend::ParseResult ConfigFrontend::parseStdout(QString& sToken,
+ ParserDelim)
+{
+ uint nResult;
+
+ // Store the type of test for which the given token in the result
+ nResult = m_nNextResult;
+
+ // Determine the next test
+ switch (m_nNextResult) {
+ case CscopePath:
+ if (sToken == "ERROR")
+ m_nNextResult = CtagsPath;
+ else
+ m_nNextResult = CscopeVersion;
+ break;
+
+ case CscopeVersion:
+ if (sToken == "ERROR")
+ m_nNextResult = CtagsPath;
+ else
+ m_nNextResult = CscopeVerbose;
+ break;
+
+ case CscopeVerbose:
+ m_nNextResult = CscopeSlowPath;
+ break;
+
+ case CscopeSlowPath:
+ m_nNextResult = CtagsPath;
+ break;
+
+ case CtagsPath:
+ if (sToken == "ERROR")
+ m_nNextResult = END;
+ else
+ m_nNextResult = CtagsExub;
+ break;
+
+ case CtagsExub:
+ if (sToken == "ERROR")
+ m_nNextResult = END;
+ else
+ m_nNextResult = DotPath;
+ break;
+
+ case DotPath:
+ if (sToken == "ERROR")
+ m_nNextResult = END;
+ else
+ m_nNextResult = DotPlain;
+ break;
+
+ case DotPlain:
+ m_nNextResult = END;
+ break;
+
+ case END:
+ return DiscardToken;
+ }
+
+ // Publish the result and the type of the next test
+ emit result(nResult, sToken);
+ emit test(m_nNextResult);
+
+ return DiscardToken;
+}
+
+#include "configfrontend.moc"