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Diffstat (limited to 'src/configfrontend.cpp')
| -rw-r--r-- | src/configfrontend.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/configfrontend.cpp b/src/configfrontend.cpp new file mode 100644 index 0000000..27e4e32 --- /dev/null +++ b/src/configfrontend.cpp @@ -0,0 +1,172 @@ +/*************************************************************************** + * + * 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" |