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1 #!/bin/sh
2 # Copyright (C) 2014 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 
16 #
17 # acov is a tool for gathering coverage information from a device and generating
18 # a report from that information. To use:
19 #
20 # 1. sudo apt-get install lcov
21 # 2. Build application/library with coverage information.
22 # 3. Push the new binaries to the device.
23 # 4. Run tests with the additional environment variables:
24 #     * GCOV_PREFIX=/data/local/tmp/gcov
25 #     * GCOV_PREFIX_STRIP=`echo $(ANDROID_BUILD_TOP) | grep -o / | wc -l`
26 # 5. Run `acov`.
27 #
28 # acov will pull all coverage information from the device, push it to the right
29 # directories, run lcov, and display the coverage report (currently by opening
30 # it in your browser).
31 #
32 
33 if [ "$1" = "--clean" ]; then
34   find $ANDROID_HOST_OUT \( -name '*.gcda' -o -name '*.gcno' \) -delete
35   find $ANDROID_PRODUCT_OUT \( -name '*.gcda' -o -name '*.gcno' \) -delete
36   exit 0
37 fi
38 
39 if [ "$1" = "--prep" ]; then
40   if [ -d "$ANDROID_HOST_OUT" ]; then
41     find $ANDROID_HOST_OUT -name '*.gcda' -delete
42   fi
43 
44   if [ -d "$ANDROID_PRODUCT_OUT" ]; then
45     find $ANDROID_PRODUCT_OUT -name '*.gcda' -delete
46   fi
47 
48   exit 0
49 fi
50 
51 which lcov >/dev/null 2>/dev/null
52 if [ $? -ne 0 ]; then
53   echo 'lcov not found: running `sudo apt-get install lcov`'
54   sudo apt-get install lcov
55 fi
56 
57 HOST=false
58 ANDROID_OUT=$ANDROID_PRODUCT_OUT
59 EXTRA_ARGS="$@"
60 if [ "$1" = "--host" ]; then
61   HOST=true
62   ANDROID_OUT=$ANDROID_HOST_OUT
63   EXTRA_ARGS="--gcov-tool=/usr/bin/gcov-4.6 ${@:2}"
64 fi
65 
66 cd $ANDROID_BUILD_TOP
67 FILE=cov.info
68 DIR=$(mktemp -d covreport-XXXXXX)
69 
70 if [ "$HOST" = "false" ]; then
71   adb pull /data/local/tmp/gcov
72 fi
73 
74 lcov -c -d $ANDROID_OUT -o $DIR/$FILE $EXTRA_ARGS
75 echo "Generating coverage report at $DIR"
76 genhtml -q -o $DIR $DIR/$FILE
77 xdg-open $DIR/index.html >/dev/null
78