| #!/bin/bash |
| # Copyright 2019 The Fuchsia Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # Arguments: |
| # - raw image file |
| # - extended image file |
| # - (optional) size of extended image file, defaults to original*2 |
| function fx-fvm-extend-image { |
| fvmraw=$1 |
| fvmimg=$2 |
| |
| stat_flags=() |
| if [[ $(uname) == "Darwin" ]]; then |
| stat_flags+=("-x") |
| fi |
| stat_output=$(stat "${stat_flags[@]}" "${fvmraw}") |
| if [[ "$stat_output" =~ Size:\ ([0-9]+) ]]; then |
| size="${BASH_REMATCH[1]}" |
| recommended_size=$((size * 2)) |
| if [[ $# -gt 2 && -n "$3" ]]; then |
| newsize=$3 |
| if [[ "${newsize}" -le "${size}" ]]; then |
| fx-error "Image size has to be greater than ${size} bytes. Recommended value is ${recommended_size} bytes." |
| return 1 |
| fi |
| else |
| newsize="${recommended_size}" |
| fi |
| # We must take a copy of the build artifact, rather than re-use it, as we |
| # need to modify it in order to extend it. |
| echo -n "Creating disk image..." |
| cp "${fvmraw}" "${fvmimg}" |
| "${HOST_OUT_DIR}/fvm" "${fvmimg}" extend --length "${newsize}" |
| echo "done" |
| else |
| fx-error "Could not extend fvm, unable to stat fvm image" |
| return 1 |
| fi |
| return 0 |
| } |
