blob: f8f85d4f93432d330c3a60bc33211038c2bb3842 [file] [log] [blame]
#!/bin/bash
# Copyright 2018 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.
#### CATEGORY=Software delivery
### compare all built Fuchsia packages with a prior package snapshot
## usage: fx delta [[--name|-n NAME] | [--source|-s PATH]] [--build] [--help-delta] [DELTA_ARGS...]
##
## Compare metadata of all Fuchsia packages with a prior package snapshot.
## --name|-n NAME Set the NAME of the source package snapshot (Default: "system")
## --source|-s PATH Read the source snapshot from the specified PATH (Default: $FUCHSIA_BUILD_DIR/snapshots/$NAME.snapshot)
## --help-delta Show command line help for "pm delta"
## --build Build the current package snapshot before comparing it to the previously saved snapshot
## DELTA_ARGS Unknown arguments are passed through to "pm delta"
source "$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"/../lib/vars.sh || exit $?
fx-config-read
pm_bin="${FUCHSIA_BUILD_DIR}/host-tools/pm"
function usage {
fx-command-help delta
echo
"${pm_bin}" delta --help
}
function main {
fx-standard-switches "$@"
set -- "${FX_ARGV[@]}"
snapshot_dir="$FUCHSIA_BUILD_DIR/snapshots"
target_path="$FUCHSIA_BUILD_DIR/obj/build/images/system.snapshot"
build=0
delta_args=()
source_name=
source_path=
while [[ $# -ne 0 ]]; do
case "$1" in
--build)
build=1
;;
-n|--name)
source_name="$2"
shift
;;
-s|--source)
source_path="$2"
shift
;;
--help-delta)
usage
exit 0
;;
*)
delta_args+=("$1")
esac
shift
done
if [[ -n "${source_name}" && -n "${source_path}" ]]; then
echo >&2 "Source name and source path can not both specified"
usage
exit 1
elif [[ -z "${source_name}" ]]; then
source_name="system"
fi
if [[ -z "${source_path}" ]]; then
source_path="${snapshot_dir}/${source_name}.snapshot"
fi
if [[ "${build}" -ne 0 ]]; then
fx-command-run build system_snapshot || {
echo >&2 "Build of current package state failed, bailing out"
exit 1
}
fi
"${pm_bin}" delta "${delta_args[@]}" "${source_path}" "${target_path}"
}
main "$@"