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CMake: Add logging output to file -> target mapping

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The logic for mapping files to targets is a heuristic, and a pretty bad
one. Add some logging output, which can be enabled by setting the env
variable QT_LOGGING_RULES to
qtc.cmakeprojectmanager.filetargetmapping.debug=true . This will allow
easier debugging of problematic cases.

Change-Id: I17086a30beb8962333109fce9198edde4540d169
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>
This commit is contained in:
Daniel Teske
2014-11-20 15:16:42 +01:00
parent 0390ece761
commit 049f2dd35c
1 changed files with 25 additions and 1 deletions
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26
src/plugins/cmakeprojectmanager/cmakeproject.cpp
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@@ -867,6 +867,7 @@ int distance(const QString &targetDirectory, const Utils::FileName &fileName)
// compiler flags
void CMakeCbpParser::sortFiles()
{
QLoggingCategory log("qtc.cmakeprojectmanager.filetargetmapping");
QList<Utils::FileName> fileNames = Utils::transform(m_fileList, [] (FileNode *node) {
return Utils::FileName::fromString(node->path());
});
@@ -877,6 +878,13 @@ void CMakeCbpParser::sortFiles()
CMakeBuildTarget *last = 0;
Utils::FileName parentDirectory;
qCDebug(log) << "###############";
qCDebug(log) << "# Pre Dump #";
qCDebug(log) << "###############";
foreach (const CMakeBuildTarget &target, m_buildTargets)
qCDebug(log) << target.title << target.sourceDirectory <<
target.includeFiles << target.defines << target.files << "\n";
// find a good build target to fall back
int fallbackIndex = 0;
{
@@ -893,10 +901,16 @@ void CMakeCbpParser::sortFiles()
}
}
qCDebug(log) << "###############";
qCDebug(log) << "# Sorting #";
qCDebug(log) << "###############";
foreach (const Utils::FileName &fileName, fileNames) {
qCDebug(log) << fileName;
if (fileName.parentDir() == parentDirectory && last) {
// easy case, same parent directory as last file
last->files.append(fileName.toString());
qCDebug(log) << " into" << last->title;
} else {
int bestDistance = std::numeric_limits<int>::max();
int bestIndex = -1;
@@ -907,6 +921,7 @@ void CMakeCbpParser::sortFiles()
if (target.includeFiles.isEmpty())
continue;
int dist = distance(target.sourceDirectory, fileName);
qCDebug(log) << "distance to target" << target.title << dist;
if (dist < bestDistance ||
(dist == bestDistance &&
target.includeFiles.count() > bestIncludeCount)) {
@@ -916,16 +931,25 @@ void CMakeCbpParser::sortFiles()
}
}
if (bestIndex == -1 && !m_buildTargets.isEmpty())
if (bestIndex == -1 && !m_buildTargets.isEmpty()) {
bestIndex = fallbackIndex;
qCDebug(log) << " using fallbackIndex";
}
if (bestIndex != -1) {
m_buildTargets[bestIndex].files.append(fileName.toString());
last = &m_buildTargets[bestIndex];
parentDirectory = fileName.parentDir();
qCDebug(log) << " into" << last->title;
}
}
}
qCDebug(log) << "###############";
qCDebug(log) << "# After Dump #";
qCDebug(log) << "###############";
foreach (const CMakeBuildTarget &target, m_buildTargets)
qCDebug(log) << target.title << target.sourceDirectory << target.includeFiles << target.defines << target.files << "\n";
}
bool CMakeCbpParser::parseCbpFile(const QString &fileName, const QString &sourceDirectory)