qemu_add_drive_args

qemu.bash

# generate qemu arguments for named raw disks
#
# qemu_add_drive_args <index> <filename> <id-name> [<bootindex>]
#
# $1: name of the index variable (set to 0 at start)
# $2: name of the argument array variable (set to () at start)
# $3: filename of the raw disk image
# $4: name of the disk in /dev/disk/by-id -> /dev/disk/by-id/ata-disk_$name
# $5: optional bootindex number
#
# to be used later with `qemu … "${args[@]}" …`
#
# can't be easier than this :-/
#
# # EXAMPLES
# ```
#   declare -a args=()
#   let i=0
#   qemu_add_drive_args i args "$TESTDIR"/root.ext3 root 1
#   qemu_add_drive_args i args "$TESTDIR"/client.img client
#   qemu_add_drive_args i args "$TESTDIR"/iscsidisk2.img iscsidisk2
#   qemu_add_drive_args i args "$TESTDIR"/iscsidisk3.img iscsidisk3
#   qemu "${args[@]}"
# ```
qemu_add_drive_args() {
    local index=${!1}
    local file=$3
    local name=${4:-$index}
    local bootindex=$5

    eval "${2}"'+=(' \
        -drive "if=none,format=raw,file=${file},id=drive-sata${index}" \
        -device "ide-hd,bus=ide.${index},drive=drive-sata${index},id=sata${index},${bootindex:+bootindex=$bootindex,}model=disk,serial=${name}" \
        ')'

    let "${1}++"
}