view filestates.cpp @ 363:f89e50d748ed feature_93

Enable Push button whenever the repo is non-empty, even when there is no remote location -- ask for remote location when it is pressed. Also change "Change Remote..." to "Set Remote..." to be consistent with this new usage
author Chris Cannam
date Thu, 17 Mar 2011 17:48:18 +0000
parents 4cd753e083cc
children
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/* -*- 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 "filestates.h"

#include "debug.h"

#include <QMap>

FileStates::FileStates()
{
}

void FileStates::clearBuckets()
{
    m_clean.clear();
    m_modified.clear();
    m_added.clear();
    m_removed.clear();
    m_missing.clear();
    m_inConflict.clear();
    m_unknown.clear();
    m_ignored.clear();
}

FileStates::State FileStates::charToState(QChar c, bool *ok)
{
    // Note that InConflict does not correspond to a stat char -- it's
    // reported separately, by resolve --list, which shows U for
    // Unresolved -- stat reports files in conflict as M, which means
    // they will appear in more than one bin if we handle them
    // naively.  'u' is also used by stat as the command option for
    // Unknown, but the stat output uses ? for these so there's no
    // ambiguity in parsing.

    if (ok) *ok = true;
    if (c == 'M') return Modified;
    if (c == 'A') return Added;
    if (c == 'R') return Removed;
    if (c == '!') return Missing;
    if (c == 'U') return InConflict;
    if (c == '?') return Unknown;
    if (c == 'C') return Clean;
    if (c == 'I') return Ignored;
    if (ok) *ok = false;
    return Unknown;
}

QStringList *FileStates::stateToBucket(State s)
{
    switch (s) {
    case Clean: return &m_clean;
    case Modified: return &m_modified;
    case Added: return &m_added;
    case Unknown: return &m_unknown;
    case Removed: return &m_removed;
    case Missing: return &m_missing;
    case InConflict: return &m_inConflict;
    case Ignored: return &m_ignored;

    default: return &m_clean;
    }
}

void FileStates::parseStates(QString text)
{
    text.replace("\r\n", "\n");

    clearBuckets();
    m_stateMap.clear();

    QStringList lines = text.split("\n", QString::SkipEmptyParts);

    foreach (QString line, lines) {

        if (line.length() < 3 || line[1] != ' ') {
            continue;
        }

        QChar c = line[0];
        bool ok = false;
        State s = charToState(c, &ok);
        if (!ok) continue;

        QString file = line.right(line.length() - 2);
        m_stateMap[file] = s;
    }

    foreach (QString file, m_stateMap.keys()) {
        QStringList *bucket = stateToBucket(m_stateMap[file]);
        if (bucket) bucket->push_back(file);
    }

    DEBUG << "FileStates: "
          << m_modified.size() << " modified, " << m_added.size()
          << " added, " << m_removed.size() << " removed, " << m_missing.size()
          << " missing, " << m_inConflict.size() << " in conflict, "
          << m_unknown.size() << " unknown" << endl;
}

QStringList FileStates::filesInState(State s) const
{
    QStringList *sl = const_cast<FileStates *>(this)->stateToBucket(s);
    if (sl) return *sl;
    else return QStringList();
}

bool FileStates::isInState(QString file, State s) const
{
    return filesInState(s).contains(file);
}

FileStates::State FileStates::stateOf(QString file) const
{
    if (m_stateMap.contains(file)) {
        return m_stateMap[file];
    }
    DEBUG << "FileStates: WARNING: getStateOfFile: file "
            << file << " is unknown to us: returning Unknown state, "
            << "but unknown to us is not supposed to be the same "
            << "thing as unknown state..."
            << endl;
    return Unknown;
}

FileStates::Activities FileStates::activitiesSupportedBy(State s)
{
    Activities a;

    switch (s) {

    case Modified:
        a << Annotate << Diff << Commit << Revert << Rename << Copy << Remove;
        break;

    case Added:
        a << Commit << Revert << Rename << Copy << Remove;
        break;
        
    case Removed:
        a << Commit << Revert << Add;
        break;

    case InConflict:
        a << Annotate << Diff << RedoMerge << MarkResolved << Revert;
        break;

    case Missing:
        a << Revert << Remove;
        break;
        
    case Unknown:
        a << Add << Ignore;
        break;

    case Clean:
        a << Annotate << Rename << Copy << Remove;
        break;

    case Ignored:
        a << UnIgnore;
        break;
    }

    return a;
}

bool FileStates::supportsActivity(State s, Activity a)
{
    return activitiesSupportedBy(s).contains(a);
}

int FileStates::activityGroup(Activity a)
{
    switch (a) {
    case Annotate: case Diff: return 0;
    case Commit: case Revert: return 1;
    case Rename: case Copy: return 2;
    case Add: case Remove: return 3;
    case RedoMerge: case MarkResolved: return 4;
    case Ignore: case UnIgnore: return 5;
    }
    return 0;
}

bool FileStates::supportsActivity(QString file, Activity a) const
{
    return supportsActivity(stateOf(file), a);
}

QStringList FileStates::filesSupportingActivity(Activity a) const
{
    QStringList f;
    for (int i = int(FirstState); i <= int(LastState); ++i) {
        State s = (State)i;
        if (supportsActivity(s, a)) {
            f << filesInState(s);
        }
    }
    return f;
}

FileStates::Activities FileStates::activitiesSupportedBy(QString file) const
{
    return activitiesSupportedBy(stateOf(file));
}