/*
* Call either include "includeFile" or "includeLine".
* If fin is stdin include one line. Otherwise include the whole file.
*/
SrcLineList
include(FileName fn, FILE *fin, int *plineno, InclIsContinuedFun iscont)
{
if (fnameIsStdin(fn) && fin)
return includeLine(fn, fin, plineno, iscont);
else
return includeFile(fn);
}
void Rules::load(const QString &filename)
{
qDebug() << "Loading rules from" << filename;
// initialize the regexps we will use
QRegExp repoLine("create repository\\s+(\\S+)", Qt::CaseInsensitive);
QString varRegex("[A-Za-z0-9_]+");
QRegExp matchLine("match\\s+(.*)", Qt::CaseInsensitive);
QRegExp matchActionLine("action\\s+(\\w+)", Qt::CaseInsensitive);
QRegExp matchRepoLine("repository\\s+(\\S+)", Qt::CaseInsensitive);
QRegExp matchDescLine("description\\s+(.+)$", Qt::CaseInsensitive);
QRegExp matchRepoSubstLine("substitute repository\\s+(.+)$", Qt::CaseInsensitive);
QRegExp matchBranchLine("branch\\s+(\\S+)", Qt::CaseInsensitive);
QRegExp matchBranchSubstLine("substitute branch\\s+(.+)$", Qt::CaseInsensitive);
QRegExp matchRevLine("(min|max) revision (\\d+)", Qt::CaseInsensitive);
QRegExp matchAnnotateLine("annotated\\s+(\\S+)", Qt::CaseInsensitive);
QRegExp matchPrefixLine("prefix\\s+(.*)$", Qt::CaseInsensitive);
QRegExp declareLine("declare\\s+("+varRegex+")\\s*=\\s*(\\S+)", Qt::CaseInsensitive);
QRegExp variableLine("\\$\\{("+varRegex+")(\\|[^}$]*)?\\}", Qt::CaseInsensitive);
QRegExp includeLine("include\\s+(.*)", Qt::CaseInsensitive);
enum { ReadingNone, ReadingRepository, ReadingMatch } state = ReadingNone;
Repository repo;
Match match;
int lineNumber = 0;
QFile file(filename);
if (!file.open(QIODevice::ReadOnly))
qFatal("Could not read the rules file: %s", qPrintable(filename));
QTextStream s(&file);
QStringList lines = s.readAll().split('\n', QString::KeepEmptyParts);
QStringList::iterator it;
for(it = lines.begin(); it != lines.end(); ++it) {
++lineNumber;
QString origLine = *it;
QString line = origLine;
int hash = line.indexOf('#');
if (hash != -1)
line.truncate(hash);
line = line.trimmed();
if (line.isEmpty())
continue;
bool isIncludeRule = includeLine.exactMatch(line);
if (isIncludeRule) {
int index = filename.lastIndexOf("/");
QString includeFile = filename.left( index + 1) + includeLine.cap(1);
load(includeFile);
} else {
while( variableLine.indexIn(line) != -1 ) {
QString replacement;
if (m_variables.contains(variableLine.cap(1))) {
replacement = m_variables[variableLine.cap(1)];
} else {
if (variableLine.cap(2).startsWith('|')) {
replacement = variableLine.cap(2).mid(1);
} else {
qFatal("Undeclared variable: %s", qPrintable(variableLine.cap(1)));
}
}
line = line.replace(variableLine.cap(0), replacement);
}
if (state == ReadingRepository) {
if (matchBranchLine.exactMatch(line)) {
Repository::Branch branch;
branch.name = matchBranchLine.cap(1);
repo.branches += branch;
continue;
} else if (matchDescLine.exactMatch(line)) {
repo.description = matchDescLine.cap(1);
continue;
} else if (matchRepoLine.exactMatch(line)) {
repo.forwardTo = matchRepoLine.cap(1);
continue;
} else if (matchPrefixLine.exactMatch(line)) {
repo.prefix = matchPrefixLine.cap(1);
continue;
} else if (line == "end repository") {
if (!repo.forwardTo.isEmpty()
&& !repo.description.isEmpty()) {
qFatal("Specifing repository and description on repository is invalid on line %d", lineNumber);
}
if (!repo.forwardTo.isEmpty()
&& !repo.branches.isEmpty()) {
qFatal("Specifing repository and branches on repository is invalid on line %d", lineNumber);
}
m_repositories += repo;
{
// clear out 'repo'
Repository temp;
std::swap(repo, temp);
}
state = ReadingNone;
continue;
}
} else if (state == ReadingMatch) {
if (matchRepoLine.exactMatch(line)) {
match.repository = matchRepoLine.cap(1);
continue;
} else if (matchBranchLine.exactMatch(line)) {
match.branch = matchBranchLine.cap(1);
continue;
} else if (matchRepoSubstLine.exactMatch(line)) {
Match::Substitution subst = parseSubstitution(matchRepoSubstLine.cap(1));
if (!subst.isValid()) {
qFatal("Malformed substitution in rules file: line %d: %s",
lineNumber, qPrintable(origLine));
}
match.repo_substs += subst;
continue;
} else if (matchBranchSubstLine.exactMatch(line)) {
Match::Substitution subst = parseSubstitution(matchBranchSubstLine.cap(1));
if (!subst.isValid()) {
qFatal("Malformed substitution in rules file: line %d: %s",
lineNumber, qPrintable(origLine));
}
match.branch_substs += subst;
continue;
} else if (matchRevLine.exactMatch(line)) {
if (matchRevLine.cap(1) == "min")
match.minRevision = matchRevLine.cap(2).toInt();
else // must be max
match.maxRevision = matchRevLine.cap(2).toInt();
continue;
} else if (matchPrefixLine.exactMatch(line)) {
match.prefix = matchPrefixLine.cap(1);
if( match.prefix.startsWith('/'))
match.prefix = match.prefix.mid(1);
continue;
} else if (matchActionLine.exactMatch(line)) {
QString action = matchActionLine.cap(1);
if (action == "export")
match.action = Match::Export;
else if (action == "ignore")
match.action = Match::Ignore;
else if (action == "recurse")
match.action = Match::Recurse;
else
qFatal("Invalid action \"%s\" on line %d", qPrintable(action), lineNumber);
continue;
} else if (matchAnnotateLine.exactMatch(line)) {
match.annotate = matchAnnotateLine.cap(1) == "true";
continue;
} else if (line == "end match") {
if (!match.repository.isEmpty())
match.action = Match::Export;
m_matchRules += match;
Stats::instance()->addRule(match);
state = ReadingNone;
continue;
}
}
bool isRepositoryRule = repoLine.exactMatch(line);
bool isMatchRule = matchLine.exactMatch(line);
bool isVariableRule = declareLine.exactMatch(line);
if (isRepositoryRule) {
// repository rule
state = ReadingRepository;
repo = Repository(); // clear
repo.name = repoLine.cap(1);
repo.lineNumber = lineNumber;
repo.filename = filename;
} else if (isMatchRule) {
// match rule
state = ReadingMatch;
match = Match();
match.rx = QRegExp(matchLine.cap(1), Qt::CaseSensitive, QRegExp::RegExp2);
if( !match.rx.isValid() )
qFatal("Malformed regular expression '%s' in file:'%s':%d, Error: %s",
qPrintable(matchLine.cap(1)), qPrintable(filename), lineNumber,
qPrintable(match.rx.errorString()));
match.lineNumber = lineNumber;
match.filename = filename;
} else if (isVariableRule) {
QString variable = declareLine.cap(1);
QString value = declareLine.cap(2);
m_variables.insert(variable, value);
} else {
qFatal("Malformed line in rules file: line %d: %s",
lineNumber, qPrintable(origLine));
}
}
}
}
