1 #!/bin/bash 2 3 # Bash script to assert that the current version of the NDK is at least the 4 # specified version. Prints 'true' to standard out if it's the right version, 5 # 'false' if it's not. 6 # 7 # Typically used like this, in your jni/Android.mk: 8 # 9 # ifneq ($(shell $(LOCAL_PATH)/assert_ndk_version.sh "r5c" "ndk-dir"), true) 10 # $(error NDK version r5c or greater required) 11 # endif 12 # 13 # See https://gist.github.com/2878774 for asserting SDK version. 14 # 15 # Retrieved from: https://gist.github.com/jorgenpt/1961404 on 2014-06-03. 16 # 17 # Copyright (c) 2012, Lookout, Inc. All rights reserved. 18 # 19 # Redistribution and use in source and binary forms, with or without 20 # modification, are permitted provided that the following conditions are met: 21 # 22 # 1. Redistributions of source code must retain the above copyright notice, 23 # this list of conditions and the following disclaimer. 24 # 25 # 2. Redistributions in binary form must reproduce the above copyright 26 # notice, this list of conditions and the following disclaimer in the 27 # documentation and/or other materials provided with the distribution. 28 # 29 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 30 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 33 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 34 # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 35 # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 36 # OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 37 # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 38 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 39 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40 # 41 # Author: jorgenpt (at] gmail.com (Jorgen Tjerno) 42 # alexs.mac (at] gmail.com (Alex Stewart) 43 44 # Extracts 'r5c' into '5 c', also handles newer versions of the form 45 # 'r9d (64-bit)' and versions >= 10. 46 function get_major_minor() { 47 # r9d (64-bit) -> '9d', also handle versions >= 10. 48 local version=$(echo "$1" | sed 's/r\([0-9]\{1,2\}[a-z]\{0,1\}\).*/\1/') 49 local major=$(echo "$version" | sed 's/\([0-9]\{1,2\}\).*/\1/') 50 local minor=$(echo "$version" | sed 's/^[0-9]*//') 51 echo "$major $minor" 52 } 53 54 if [[ -z "$2" ]]; then 55 echo "Usage: $0 <required version> <NDK_ROOT>" >&2 56 echo " For example: $0 r5c android-ndk-r9d" >&2 57 exit 1 58 fi 59 60 # Assert that the expected version is at least 4. 61 declare -a expected_version 62 expected_version=( $(get_major_minor "$1") ) 63 if [[ ${expected_version[0]} -le 4 ]]; then 64 echo "Cannot test for versions less than r5: r4 doesn't have a version file." >&2 65 echo false 66 exit 1 67 fi 68 69 release_file="$2/RELEASE.TXT" 70 71 # NDK version r4 or earlier doesn't have a RELEASE.txt, and we just asserted 72 # that the person was looking for r5 or above, so that implies that this is an 73 # invalid version. 74 if [ ! -s "$release_file" ]; then 75 echo false 76 exit 0 77 fi 78 79 # Make sure the data is at least kinda sane. 80 version=$(grep '^r' $release_file) 81 declare -a actual_version 82 actual_version=( $(get_major_minor "$version") ) 83 if [ -z "$version" ] || [ -z "${actual_version[0]}" ]; then 84 echo "Invalid RELEASE.txt: $(cat $release_file)" >&2 85 echo false 86 exit 1 87 fi 88 89 if [[ ${actual_version[0]} -lt ${expected_version[0]} ]]; then 90 echo "false" 91 elif [[ ${actual_version[0]} -eq ${expected_version[0]} ]]; then 92 # This uses < and not -lt because they're string identifiers (a, b, c, etc) 93 if [[ "${actual_version[1]}" < "${expected_version[1]}" ]]; then 94 echo "false" 95 else 96 echo "true" 97 fi 98 else 99 echo "true" 100 fi 101
