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[libcalamares] Implement most of dumpYaml

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- Write out bools, strings, lists and maps; this is enough to
   read and reproduce settings.conf
 - Fix infinite loop in writeIndent()
This commit is contained in:
Adriaan de Groot 2019-01-28 18:25:47 -05:00
parent f72d6ca403
commit e25deffa74
1 changed files with 43 additions and 3 deletions
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46
src/libcalamares/utils/YamlUtils.cpp
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@ -207,8 +207,47 @@ loadYaml(const QString& filename, bool* ok)
static void
writeIndent( QFile& f, int indent )
{
while ( indent > 0 )
f.write( " " );
while ( indent-- > 0 )
f.write( " " );
}
// forward declaration
static bool dumpYaml( QFile& f, const QVariantMap& map, int indent );
/// @brief Recursive helper to dump a single value
static void
dumpYamlElement( QFile& f, const QVariant& value, int indent )
{
if ( value.type() == QVariant::Type::Bool )
f.write( value.toBool() ? "true" : "false" );
else if ( value.type() == QVariant::Type::String )
{
static const char quote[] = "\"";
f.write( quote );
f.write( value.toString().toUtf8() );
f.write( quote );
}
else if ( value.type() == QVariant::Type::List )
{
int c = 0;
for ( const auto& it : value.toList() )
{
f.write( "\n" );
writeIndent( f, indent+1 );
f.write( "- " );
dumpYamlElement( f, it, indent+1 );
}
}
else if ( value.type() == QVariant::Type::Map )
{
dumpYaml( f, value.toMap(), indent+1 );
}
else
{
f.write( "<" );
f.write( value.typeName() );
f.write( ">" );
}
}
/// @brief Recursive helper to dump @p map to file
@ -217,8 +256,9 @@ dumpYaml( QFile& f, const QVariantMap& map, int indent )
{
for ( auto it = map.cbegin(); it != map.cend(); ++it )
{
writeIndent( f, indent );
f.write( it.key().toUtf8() );
f.write( ": " );
dumpYamlElement( f, it.value(), indent );
f.write( "\n" );
}
return true;