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[partition] Add max size parameter

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When using a custom partition layout with partition sizes in %, it can
be useful to set an upper limit to the partition size.

For instance, using a 20% size for the `/` partition will create a 24G
partition on a 120GB drive, but a 200GB partition on a 1TB drive, which
is not useful, and could be avoided by setting a maximum partition size.

This commit adds the `maxSize` parameter (with a default value of 100%).

Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
This commit is contained in:
Arnaud Ferraris 2019-04-08 12:19:35 +02:00
parent fdb4311a70
commit 5358e2314d
4 changed files with 27 additions and 11 deletions
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17
src/modules/partition/core/PartitionLayout.cpp
View file

@ -75,17 +75,19 @@ PartitionLayout::addEntry( PartitionLayout::PartitionEntry entry )
m_partLayout.append( entry );
}
PartitionLayout::PartitionEntry::PartitionEntry(const QString& size, const QString& min)
PartitionLayout::PartitionEntry::PartitionEntry( const QString& size, const QString& min, const QString& max )
{
partSize = PartUtils::parseSizeString( size , &partSizeUnit );
if ( !min.isEmpty() )
partMinSize = PartUtils::parseSizeString( min , &partMinSizeUnit );
if ( !max.isEmpty() )
partMaxSize = PartUtils::parseSizeString( max , &partMaxSizeUnit );
}
void
PartitionLayout::addEntry( const QString& mountPoint, const QString& size, const QString& min )
PartitionLayout::addEntry( const QString& mountPoint, const QString& size, const QString& min, const QString& max )
{
PartitionLayout::PartitionEntry entry( size, min );
PartitionLayout::PartitionEntry entry( size, min, max );
entry.partMountPoint = mountPoint;
entry.partFileSystem = m_defaultFsType;
@ -94,9 +96,9 @@ PartitionLayout::addEntry( const QString& mountPoint, const QString& size, const
}
void
PartitionLayout::addEntry( const QString& label, const QString& mountPoint, const QString& fs, const QString& size, const QString& min )
PartitionLayout::addEntry( const QString& label, const QString& mountPoint, const QString& fs, const QString& size, const QString& min, const QString& max )
{
PartitionLayout::PartitionEntry entry( size, min );
PartitionLayout::PartitionEntry entry( size, min, max );
entry.partLabel = label;
entry.partMountPoint = mountPoint;
@ -114,7 +116,7 @@ PartitionLayout::execute( Device *dev, qint64 firstSector,
const PartitionRole& role )
{
QList< Partition* > partList;
qint64 size, minSize, end;
qint64 size, minSize, maxSize, end;
qint64 totalSize = lastSector - firstSector + 1;
qint64 availableSize = totalSize;
@ -128,8 +130,11 @@ PartitionLayout::execute( Device *dev, qint64 firstSector,
// Calculate partition size
size = PartUtils::sizeToSectors( part.partSize, part.partSizeUnit, totalSize, dev->logicalSize() );
minSize = PartUtils::sizeToSectors( part.partMinSize, part.partMinSizeUnit, totalSize, dev->logicalSize() );
maxSize = PartUtils::sizeToSectors( part.partMaxSize, part.partMaxSizeUnit, totalSize, dev->logicalSize() );
if ( size < minSize )
size = minSize;
if ( size > maxSize )
size = maxSize;
if ( size > availableSize )
size = availableSize;
end = firstSector + size - 1;