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Fix part name construction for devices like mmcblk0p1 and nvme0n1p1 #110

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merged 1 commit into from
Sep 25, 2023
Merged

Fix part name construction for devices like mmcblk0p1 and nvme0n1p1 #110

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26 changes: 24 additions & 2 deletions pkg/plugins/layout.go
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Original file line number Diff line number Diff line change
Expand Up @@ -448,7 +448,7 @@ func (dev *Disk) ExpandLastPartition(l logger.Interface, size uint, console Cons
}
freeS := dev.computeFreeSpaceWithoutLast()
if size > freeS {
return "", errors.New(fmt.Sprintf("Not enough free space for to expand last partition up to %d sectors", size))
return "", fmt.Errorf("Not enough free space for to expand last partition up to %d sectors", size)
}
}

Expand All @@ -461,7 +461,11 @@ func (dev *Disk) ExpandLastPartition(l logger.Interface, size uint, console Cons
}

// Expand FS
fullDevice := fmt.Sprintf("%s%d", dev.Device, part.Number)
fullDevice, err := dev.findFullPartName(console, part.Number)
if err != nil {
return fullDevice, err
}

out, err = dev.expandFilesystem(fullDevice, console)
if err != nil {
return out, err
Expand All @@ -475,6 +479,24 @@ func (dev *Disk) ExpandLastPartition(l logger.Interface, size uint, console Cons
return out, nil
}

func (dev Disk) findFullPartName(console Console, partNum int) (string, error) {
allParts, err := console.Run(fmt.Sprintf("lsblk -ltnpo name %s", dev.Device))
if err != nil {
return allParts, fmt.Errorf("listing partitions %w", err)
}

for _, part := range strings.Split(allParts, "\n") {
matches, err := regexp.MatchString(fmt.Sprintf("%s.*%d", dev.Device, partNum), part)
if err != nil {
return "", err
}
if matches {
return part, nil
}
}
return "", errors.New("no partition found")
}

func (dev Disk) expandFilesystem(device string, console Console) (string, error) {
var out string
var err error
Expand Down
3 changes: 3 additions & 0 deletions pkg/plugins/layout_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,7 @@ var CmdsExpandPart []console.CmdMock = []console.CmdMock{
{Cmd: "sgdisk -P -e /some/device"},
{Cmd: "sgdisk -e /some/device"}, pTable,
{Cmd: "growpart /some/device 4"},
{Cmd: "lsblk -ltnpo name /some/device", Output: "/some/device3\n/some/device4"},
{Cmd: "blkid /some/device4 -s TYPE -o value", Output: "ext4"},
{Cmd: "e2fsck -fy /some/device4"},
{Cmd: "resize2fs /some/device4"}, pTable,
Expand Down Expand Up @@ -161,6 +162,7 @@ var CmdsAddAndExpandPart []console.CmdMock = []console.CmdMock{
/some/device1 part`},
{Cmd: "mkfs.ext2 -L MYLABEL /some/device1"},
{Cmd: "growpart /some/device 1"},
{Cmd: "lsblk -ltnpo name /some/device", Output: "/some/device1\n/some/device4"},
{Cmd: "blkid /some/device1 -s TYPE -o value", Output: "ext2"},
{Cmd: "e2fsck -fy /some/device1"},
{Cmd: "resize2fs /some/device1"},
Expand All @@ -178,6 +180,7 @@ var CmdsExpandPartXfs []console.CmdMock = []console.CmdMock{
{Cmd: "sgdisk -P -e /some/device"},
{Cmd: "sgdisk -e /some/device"}, pTable,
{Cmd: "growpart /some/device 4"},
{Cmd: "lsblk -ltnpo name /some/device", Output: "/some/device3\n/some/device4"},
{Cmd: "blkid /some/device4 -s TYPE -o value", Output: "xfs"},
{Cmd: "mount -t xfs /some/device4 /tmp/*", UseRegexp: true},
{Cmd: "xfs_growfs /tmp/*", UseRegexp: true},
Expand Down