xref: /aosp_15_r20/frameworks/base/ravenwood/scripts/shrink-systemui-test (revision d57664e9bc4670b3ecf6748a746a57c557b6bc9e) 
1#!/bin/bash
2# Copyright (C) 2024 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16set -e
17
18SCRIPT_NAME="${0##*/}"
19
20usage() {
21    cat <<"EOF"
22
23$SCRIPT_NAME: Shrink / unshrink SystemUiRavenTests.
24
25    SystemUiRavenTests has a lot of kotlin source files, so it's slow to build,
26    which is painful when you want to run it after updating ravenwood code
27    that SystemUiRavenTests depends on. (example: junit-src/)
28
29    This script basically removes the test files in SystemUI/multivalentTests
30    that don't have @EnabledOnRavenwood. But if we actaully remove them,
31    soong would re-generate the ninja file, which will take a long time,
32    so instead it'll truncate them.
33
34    This script will also tell git to ignore these files, so they won't shw up
35    in `git status`.
36    (Use `git ls-files -v | sed -ne "s/^[a-zS] //p"` to show ignored filse.)
37
38Usage:
39    $SCRIPT_NAME -s # Shrink the test files.
40
41    $SCRIPT_NAME -u # Undo it.
42
43EOF
44}
45
46TEST_PATH=${ANDROID_BUILD_TOP}/frameworks/base/packages/SystemUI/multivalentTests
47cd "$TEST_PATH"
48
49command=""
50case "$1" in
51    "-s") command=shrink ;;
52    "-u") command=unshrink ;;
53    *) usage ; exit 1 ;;
54esac
55
56
57echo "Listing test files...."
58files=( $(find . -name '*Test.kt' -o -name '*Test.java') )
59
60exemption='(BaseHeadsUpManagerTest)'
61
62shrink() {
63    local target=()
64    for file in ${files[@]}; do
65        # Check for exemption
66        if echo $file | egrep -q "$exemption"; then
67            echo "  Skip exempted file"
68            continue
69        fi
70
71        echo "Checking $file"
72        if ! [[ -f $file ]] ; then
73            echo "  Skip non regular file"
74            continue
75        fi
76
77        if ! [[ -s $file ]] ; then
78            echo "  Skip empty file"
79            continue
80        fi
81
82        if grep -q '@EnabledOnRavenwood' $file ; then
83            echo "  Skip ravenwood test file".
84            continue
85        fi
86
87        # It's a non ravenwood test file. Empty it.
88        : > $file
89
90        # Tell git to ignore the file
91
92        target+=($file)
93
94        echo "  Emptied"
95
96    done
97    if (( ${#target[@]} == 0 )) ; then
98        echo "No files emptied."
99        return 0
100    fi
101
102    git update-index --skip-worktree ${target[@]}
103
104    echo "Emptied ${#target[@]} files"
105    return 0
106}
107
108unshrink() {
109    local target=()
110
111    # Collect empty files
112    for file in ${files[@]}; do
113        if [[ -s $file ]] ; then
114            continue
115        fi
116
117        target+=($file)
118        : > $file
119    done
120    if (( ${#target[@]} == 0 )) ; then
121        echo "No files to restore."
122        return 0
123    fi
124    # Un-ignore the files, and check out the original files
125    echo "Restoring ${#target[@]} files..."
126    git update-index --no-skip-worktree ${target[@]}
127    git checkout goog/main ${target[@]}
128    return 0
129}
130
131$command
132