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| 1 | +#!/bin/bash |
| 2 | + |
| 3 | +# Copyright JS Foundation and other contributors, http://js.foundation |
| 4 | +# |
| 5 | +# Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | +# you may not use this file except in compliance with the License. |
| 7 | +# You may obtain a copy of the License at |
| 8 | +# |
| 9 | +# http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | +# |
| 11 | +# Unless required by applicable law or agreed to in writing, software |
| 12 | +# distributed under the License is distributed on an "AS IS" BASIS |
| 13 | +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | +# See the License for the specific language governing permissions and |
| 15 | +# limitations under the License. |
| 16 | + |
| 17 | +# Usage |
| 18 | +function print_usage |
| 19 | +{ |
| 20 | + echo "Usage: $0 [--help] [--tolerant] [--travis]" |
| 21 | +} |
| 22 | + |
| 23 | +function print_help |
| 24 | +{ |
| 25 | + echo "$0: Check Signed-off-by message of the latest commit" |
| 26 | + echo "" |
| 27 | + print_usage |
| 28 | + echo "" |
| 29 | + echo "Optional arguments:" |
| 30 | + echo " --help print this help message" |
| 31 | + echo " --tolerant check the existence of the message only but don't" |
| 32 | + echo " require the name and email address to match the author" |
| 33 | + echo " of the commit" |
| 34 | + echo " --travis perform check in tolerant mode if on Travis CI and not" |
| 35 | + echo " checking a pull request, perform strict check otherwise" |
| 36 | + echo "" |
| 37 | + echo "The last line of every commit message must follow the form of:" |
| 38 | + echo "'JerryScript-DCO-1.0-Signed-off-by: NAME EMAIL', where NAME and EMAIL must" |
| 39 | + echo "match the name and email address of the author of the commit (unless in" |
| 40 | + echo "tolerant mode)." |
| 41 | +} |
| 42 | + |
| 43 | +# Processing command line |
| 44 | +TOLERANT="no" |
| 45 | +while [ "$#" -gt 0 ] |
| 46 | +do |
| 47 | + if [ "$1" == "--help" ] |
| 48 | + then |
| 49 | + print_help |
| 50 | + exit 0 |
| 51 | + elif [ "$1" == "--tolerant" ] |
| 52 | + then |
| 53 | + TOLERANT="yes" |
| 54 | + shift |
| 55 | + elif [ "$1" == "--travis" ] |
| 56 | + then |
| 57 | + if [ "$TRAVIS_PULL_REQUEST" == "" ] |
| 58 | + then |
| 59 | + echo -e "\e[1;33mWarning! Travis-tolerant mode requested but not running on Travis CI! \e[0m" |
| 60 | + elif [ "$TRAVIS_PULL_REQUEST" == "false" ] |
| 61 | + then |
| 62 | + TOLERANT="yes" |
| 63 | + else |
| 64 | + TOLERANT="no" |
| 65 | + fi |
| 66 | + shift |
| 67 | + else |
| 68 | + print_usage |
| 69 | + exit 1 |
| 70 | + fi |
| 71 | +done |
| 72 | + |
| 73 | +# Determining latest commit |
| 74 | +parent_hashes=(`git show -s --format=%p HEAD | head -1`) |
| 75 | + |
| 76 | +if [ "${#parent_hashes[@]}" -eq 1 ] |
| 77 | +then |
| 78 | + commit_hash=`git show -s --format=%h HEAD | head -1` |
| 79 | +elif [ "${#parent_hashes[@]}" -eq 2 ] |
| 80 | +then |
| 81 | + commit_hash=${parent_hashes[1]} |
| 82 | +else |
| 83 | + echo "$0: cannot handle commit with ${#parent_hashes[@]} parents ${parent_hashes[@]}" |
| 84 | + exit 1 |
| 85 | +fi |
| 86 | + |
| 87 | +# Checking the last line |
| 88 | +actual_signed_off_by_line=`git show -s --format=%B $commit_hash | sed '/^$/d' | tr -d '\015' | tail -n 1` |
| 89 | + |
| 90 | +if [ "$TOLERANT" == "no" ] |
| 91 | +then |
| 92 | + author_name=`git show -s --format=%an $commit_hash` |
| 93 | + author_email=`git show -s --format=%ae $commit_hash` |
| 94 | + required_signed_off_by_line="JerryScript-DCO-1.0-Signed-off-by: $author_name $author_email" |
| 95 | + |
| 96 | + if [ "$actual_signed_off_by_line" != "$required_signed_off_by_line" ] |
| 97 | + then |
| 98 | + echo -e "\e[1;33mSigned-off-by message is incorrect. The following line should be at the end of the $commit_hash commit's message: '$required_signed_off_by_line'. \e[0m" |
| 99 | + exit 1 |
| 100 | + fi |
| 101 | +else |
| 102 | + echo -e "\e[1;33mWarning! The name and email address of the author of the $commit_hash commit is not checked in tolerant mode! \e[0m" |
| 103 | + if echo "$actual_signed_off_by_line" | grep -q -v '^JerryScript-DCO-1.0-Signed-off-by:' |
| 104 | + then |
| 105 | + echo -e "\e[1;33mSigned-off-by message is incorrect. The following line should be at the end of the $commit_hash commit's message: '$required_signed_off_by_line'. \e[0m" |
| 106 | + exit 1 |
| 107 | + fi |
| 108 | +fi |
| 109 | + |
| 110 | +exit 0 |
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