annotate src/knownplugincandidates.cpp @ 64:e839338d3869 tip

Further Windows fix

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
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#include "knownplugincandidates.h"

#include <sstream>

using namespace std;

/** This returns true if the helper has a name ending in "-32". By our
 *  convention, this means that it is a 32-bit helper found on a
 *  64-bit system, so (depending on the OS) we may need to look in
 *  32-bit-specific paths. Note that is32bit() is *not* usually true
 *  on 32-bit systems; it's used specifically to indicate a
 *  "non-native" 32-bit helper.
 */
static
bool
is32bit(string helperExecutableName)
{
    return helperExecutableName.find("-32") != string::npos;
}

KnownPluginCandidates::KnownPluginCandidates(string helperExecutableName,
                                             PluginCandidates::LogCallback *cb) :
    m_known(is32bit(helperExecutableName) ?
            KnownPlugins::FormatNonNative32Bit :
            KnownPlugins::FormatNative),
    m_candidates(helperExecutableName),
    m_helperExecutableName(helperExecutableName)
{
    m_candidates.setLogCallback(cb);

    auto knownTypes = m_known.getKnownPluginTypes();
        
    for (auto type: knownTypes) {
        m_candidates.scan(m_known.getTagFor(type),
                          m_known.getPathFor(type),
                          m_known.getDescriptorFor(type));
    }
}

vector<PluginCandidates::FailureRec>
KnownPluginCandidates::getFailures() const
{
    vector<PluginCandidates::FailureRec> failures;

    for (auto t: getKnownPluginTypes()) {
        auto ff = m_candidates.getFailedLibrariesFor(m_known.getTagFor(t));
        failures.insert(failures.end(), ff.begin(), ff.end());
    }

    return failures;
}

string
KnownPluginCandidates::getFailureReport() const
{
    auto failures = getFailures();
    if (failures.empty()) return "";

    int n = int(failures.size());
    int i = 0;

    ostringstream os;
    
    os << "<ul>";
    for (auto f: failures) {
        os << "<li>" + f.library;
        if (f.message != "") {
            os << "<br><i>" + f.message + "</i>";
        } else {
            os << "<br><i>unknown error</i>";
        }
        os << "</li>";

        if (n > 10) {
            if (++i == 5) {
                os << "<li>(... and " << (n - i) << " further failures)</li>";
                break;
            }
        }
    }
    os << "</ul>";

    return os.str();
}