1 #!/bin/bash 2 # 3 # Copyright (C) 2016 The Android Open-Source Project 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 18 set -e -u 19 20 base_dir=$(realpath $(dirname $0)) 21 cd "${base_dir}" 22 23 UPSTREAM_GIT="https://github.com/curl/curl" 24 UPSTREAM="github_curl" 25 README_FILE="README.version" 26 27 TEMP_FILES=() 28 cleanup() { 29 trap - INT TERM ERR EXIT 30 if [[ ${#TEMP_FILES[@]} -ne 0 ]]; then 31 rm -f "${TEMP_FILES[@]}" 32 fi 33 } 34 trap cleanup INT TERM ERR EXIT 35 36 # Prints the URL to the package for the passed version. 37 upstream_url() { 38 local version="$1" 39 echo "https://curl.haxx.se/download/curl-${version}.tar.gz" 40 } 41 42 # Update the contents of the README.version with the new version string passed 43 # as the first parameter. 44 update_readme() { 45 local version="$1" 46 local sha="$2" 47 local tmp_readme=$(mktemp update_readme.XXXXXX) 48 TEMP_FILES+=("${tmp_readme}") 49 local url 50 url=$(upstream_url "${version}") 51 52 cat >"${tmp_readme}" <<EOF 53 URL: ${url} 54 Version: ${version} 55 Upstream commit: ${sha} 56 EOF 57 grep -v -E '^(URL|Version|Upstream commit):' "${README_FILE}" \ 58 >>"${tmp_readme}" 2>/dev/null || true 59 cp "${tmp_readme}" "${README_FILE}" 60 } 61 62 63 # Print the current branch name. 64 git_current_branch() { 65 git rev-parse --abbrev-ref HEAD 66 } 67 68 # Setup and fetch the upstream remote. While we have mirroring setup of the 69 # remote, we need to fetch all the tags from upstream to identify the latest 70 # release. 71 setup_git() { 72 local current_branch 73 current_branch=$(git_current_branch) 74 if [[ "${current_branch}" == "HEAD" ]]; then 75 echo "Not working on a branch, please run 'repo start [branch_name] .'" \ 76 " first." >&2 77 exit 1 78 fi 79 80 # Setup and fetch the remote. 81 if ! git remote show | grep "^${UPSTREAM}\$" >/dev/null; then 82 echo "Adding remote ${UPSTREAM} to ${UPSTREAM_GIT}" 83 git remote add -t master "${UPSTREAM}" "${UPSTREAM_GIT}" 84 fi 85 86 TRACKING_BRANCH=$(git rev-parse --abbrev-ref --symbolic-full-name @{u}) 87 OUR_REMOTE="${TRACKING_BRANCH%/*}" 88 89 echo "Fetching latest upstream code..." 90 git fetch --quiet "${UPSTREAM}" master 91 } 92 93 94 main() { 95 setup_git 96 97 # Load the current version's upstream hash. 98 local current_sha current_version 99 current_version=$(grep '^Version: ' "${README_FILE}" | cut -d ' ' -f 2-) 100 current_sha=$(grep '^Upstream commit: ' "${README_FILE}" | cut -d ' ' -f 3) 101 102 if [[ -z "${current_sha}" ]]; then 103 echo "Couldn't determine the upstream commit the current code is at." \ 104 "Please update ${README_FILE} to include it." >&2 105 exit 1 106 fi 107 108 local target_sha target_versio 109 target_sha="${1:-}" 110 if [[ -z "${target_sha}" ]]; then 111 cat >&2 <<EOF 112 Usage: $0 [target_sha] 113 114 Pass the upstream commit SHA of the release you want to update to. 115 Candidate values are: 116 EOF 117 # Find the list of potential target_version values. 118 git --no-pager log "${UPSTREAM}/master" --not "${current_sha}" --oneline \ 119 --grep=RELEASE-NOTES --grep=THANKS -- RELEASE-NOTES docs/THANKS 120 exit 1 121 fi 122 123 # Expand the hash to the full value: 124 target_sha=$(git rev-list -n 1 "${target_sha}") 125 target_version=$(git show ${target_sha}:include/curl/curlver.h | \ 126 grep '^#define LIBCURL_VERSION ') 127 target_version=$(echo "${target_version}" | cut -f 2 -d '"') 128 target_version="${target_version%-DEV}" 129 130 # Sanity check that the passed hash is forward in the chain. 131 if [[ $(git log --oneline "${target_sha}" --not "${current_sha}" | wc -l) \ 132 == 0 ]]; then 133 echo "The target SHA (${target_sha}) is not forward from ${current_sha}.">&2 134 exit 1 135 fi 136 137 echo "Current version: ${current_version} / ${current_sha}" 138 echo "Target version: ${target_version} / ${target_sha}" 139 echo 140 141 # Generate the log message. 142 local log_message=$(mktemp log_message.XXXXXX) 143 TEMP_FILES+=("${log_message}") 144 145 (cat <<EOF 146 Update libcurl from ${current_version} to ${target_version}. 147 148 Bug: COMPLETE 149 Test: COMPLETE 150 151 Note: This patch includes the following squashed commits from upstream: 152 153 EOF 154 git --no-pager log "${target_sha}" \ 155 --not "${current_sha}")>"${log_message}" 156 157 # Land the changes and commit. 158 update_readme "${target_version}" "${target_sha}" 159 git add "README.version" 160 161 git cherry-pick --no-commit "${target_sha}" --not "${current_sha}" 162 git commit --file="${log_message}" 163 164 cat <<EOF 165 166 Run: 167 git commit --amend 168 169 edit the message to add the bug number and test it. 170 171 EOF 172 } 173 174 main "$@" 175
