147 lines
5.2 KiB
Diff
147 lines
5.2 KiB
Diff
From 21c58e17c473ea8ef31a18d03348eb2381c0f36c Mon Sep 17 00:00:00 2001
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From: Petr Uzel <petr.uzel@suse.cz>
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Date: Mon, 26 Sep 2011 17:21:01 +0200
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Subject: [PATCH 126/134] parted: add resizepart command
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Add resizepart command to resize ( change the end position ) an existing
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partition. Note that it does nothing to a filesystem in the partition.
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---
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NEWS | 2 ++
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parted/parted.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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2 files changed, 88 insertions(+)
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diff --git a/NEWS b/NEWS
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index 3de5dde..7069020 100644
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--- a/NEWS
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+++ b/NEWS
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@@ -4,6 +4,8 @@ GNU parted NEWS -*- outline -*-
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** New Features
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+ Add resizepart command to resize a partition
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+
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Add support for EAV DASD partitions, which are ECKD's with more than
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65520 cylinders.
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diff --git a/parted/parted.c b/parted/parted.c
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index 3bf03ea..a36ca28 100644
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--- a/parted/parted.c
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+++ b/parted/parted.c
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@@ -153,6 +153,9 @@ static const char* fs_type_msg_start = N_("FS-TYPE is one of: ");
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static const char* start_end_msg = N_("START and END are disk locations, such as "
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"4GB or 10%. Negative values count from the end of the disk. "
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"For example, -1s specifies exactly the last sector.\n");
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+static const char* end_msg = N_("END is disk location, such as "
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+ "4GB or 10%. Negative value counts from the end of the disk. "
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+ "For example, -1s specifies exactly the last sector.\n");
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static const char* state_msg = N_("STATE is one of: on, off\n");
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static const char* device_msg = N_("DEVICE is usually /dev/hda or /dev/sda\n");
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static const char* name_msg = N_("NAME is any word you want\n");
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@@ -437,6 +440,21 @@ constraint_from_start_end (PedDevice* dev, PedGeometry* range_start,
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range_start, range_end, 1, dev->length);
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}
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+
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+static PedConstraint*
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+constraint_from_start_end_fixed_start (PedDevice* dev, PedSector start_sector,
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+ PedGeometry* range_end)
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+{
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+ PedGeometry range_start;
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+ range_start.dev = dev;
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+ range_start.start = start_sector;
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+ range_start.end = start_sector;
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+ range_start.length = 1;
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+
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+ return ped_constraint_new (ped_alignment_any, ped_alignment_any,
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+ &range_start, range_end, 1, dev->length);
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+}
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+
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void
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help_on (char* topic)
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{
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@@ -1484,6 +1502,66 @@ error:
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}
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static int
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+do_resizepart (PedDevice** dev, PedDisk** diskp)
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+{
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+ PedDisk *disk = *diskp;
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+ PedPartition *part = NULL;
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+ PedSector start, end, oldend;
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+ PedGeometry *range_end = NULL;
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+ PedConstraint* constraint;
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+ int rc = 0;
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+
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+ if (!disk) {
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+ disk = ped_disk_new (*dev);
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+ *diskp = disk;
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+ }
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+ if (!disk)
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+ goto error;
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+
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+ if (ped_disk_is_flag_available(disk, PED_DISK_CYLINDER_ALIGNMENT))
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+ if (!ped_disk_set_flag(disk, PED_DISK_CYLINDER_ALIGNMENT,
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+ alignment == ALIGNMENT_CYLINDER))
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+ goto error;
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+
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+ if (!command_line_get_partition (_("Partition number?"), disk, &part))
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+ goto error;
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+ if (!_partition_warn_busy (part))
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+ goto error;
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+
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+ start = part->geom.start;
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+ end = oldend = part->geom.end;
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+ if (!command_line_get_sector (_("End?"), *dev, &end, &range_end, NULL))
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+ goto error;
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+ /* Do not move start of the partition */
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+ constraint = constraint_from_start_end_fixed_start (*dev, start, range_end);
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+ if (!ped_disk_set_partition_geom (disk, part, constraint,
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+ start, end))
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+ goto error_destroy_constraint;
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+ /* warn when shrinking partition - might lose data */
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+ if (part->geom.end < oldend)
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+ if (ped_exception_throw (
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+ PED_EXCEPTION_WARNING,
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+ PED_EXCEPTION_YES_NO,
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+ _("Shrinking a partition can cause data loss, " \
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+ "are you sure you want to continue?")) != PED_EXCEPTION_YES)
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+ goto error_destroy_constraint;
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+ ped_disk_commit (disk);
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+
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+ if ((*dev)->type != PED_DEVICE_FILE)
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+ disk_is_modified = 1;
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+
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+ rc = 1;
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+
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+error_destroy_constraint:
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+ ped_constraint_destroy (constraint);
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+error:
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+ if (range_end != NULL)
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+ ped_geometry_destroy (range_end);
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+ return rc;
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+}
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+
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+
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+static int
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do_rm (PedDevice** dev, PedDisk** diskp)
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{
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PedPartition* part = NULL;
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@@ -1906,6 +1984,14 @@ NULL),
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str_list_create (_(start_end_msg), NULL), 1));
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command_register (commands, command_create (
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+ str_list_create_unique ("resizepart", _("resizepart"), NULL),
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+ do_resizepart,
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+ str_list_create (
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+_("resizepart NUMBER END resize partition NUMBER"),
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+NULL),
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+ str_list_create (_(number_msg), _(end_msg), NULL), 1));
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+
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+command_register (commands, command_create (
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str_list_create_unique ("rm", _("rm"), NULL),
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do_rm,
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str_list_create (
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--
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1.9.3
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