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1#!/bin/sh
2
3# Copyright 2015 Google Inc.
4#
5# Use of this source code is governed by a BSD-style license that can be
6# found in the LICENSE file.
7
8if [ -z "$1" ]; then
9    printf 'Usage:\n    android_skp_capture.sh PACKAGE_NAME\n\n'
10    printf "Use \`adb shell 'pm list packages'\` to get a listing.\n\n"
11    exit 1
12fi
13if ! command -v adb > /dev/null 2>&1; then
14    if [ -x "${ANDROID_SDK_ROOT}/platform-tools/adb" ]; then
15        adb() {
16            "${ANDROID_SDK_ROOT}/platform-tools/adb" "$@"
17        }
18    else
19        echo 'adb missing'
20        exit 2
21    fi
22fi
23phase1_timeout_seconds=15
24phase2_timeout_seconds=60
25package="$1"
26filename="$(date '+%H%M%S').skp"
27remote_path="/data/data/${package}/cache/${filename}"
28local_path="$(date '+%Y-%m-%d_%H%M%S')_${package}.skp"
29key='debug.hwui.capture_frame_as_skp'
30adb shell "setprop '${key}' '${remote_path}'"
31spin() {
32    case "$spin" in
33         1) printf '\b|';;
34         2) printf '\b\\';;
35         3) printf '\b-';;
36         *) printf '\b/';;
37    esac
38    spin=$(( ( ${spin:-0} + 1 ) % 4 ))
39    sleep $1
40}
41
42banner() {
43    printf '\n=====================\n'
44    printf '   %s' "$*"
45    printf '\n=====================\n'
46}
47banner '...WAITING...'
48adb_test_exist() {
49    test '0' = "$(adb shell "test -e \"$1\"; echo \$?")";
50}
51timeout=$(( $(date +%s) + $phase1_timeout_seconds))
52while ! adb_test_exist "$remote_path"; do
53    spin 0.05
54    if [ $(date +%s) -gt $timeout ] ; then
55        printf '\bTimed out.\n'
56        adb shell "setprop '${key}' ''"
57        exit 3
58    fi
59done
60printf '\b'
61
62banner '...SAVING...'
63adb_test_file_nonzero() {
64    # grab first byte of `du` output
65    X="$(adb shell "du \"$1\" 2> /dev/null | dd bs=1 count=1 2> /dev/null")"
66    test "$X" && test "$X" -ne 0
67}
68#adb_filesize() {
69#    adb shell "wc -c \"$1\"" 2> /dev/null | awk '{print $1}'
70#}
71timeout=$(( $(date +%s) + $phase2_timeout_seconds))
72while ! adb_test_file_nonzero "$remote_path"; do
73    spin 0.05
74    if [ $(date +%s) -gt $timeout ] ; then
75        printf '\bTimed out.\n'
76        adb shell "setprop '${key}' ''"
77        exit 3
78    fi
79done
80printf '\b'
81
82adb shell "setprop '${key}' ''"
83
84i=0; while [ $i -lt 10 ]; do spin 0.10; i=$(($i + 1)); done; echo
85
86adb pull "$remote_path" "$local_path"
87if ! [ -f "$local_path" ] ; then
88    printf "something went wrong with `adb pull`."
89    exit 4
90fi
91adb shell rm "$remote_path"
92printf '\nSKP saved to file:\n    %s\n\n'  "$local_path"
93