| 1 | #!/bin/bash |
| 2 | # shellcheck disable=SC2103 |
| 3 | # |
| 4 | # Copyright (C) 2020 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com> |
| 5 | # |
| 6 | # This program is free software: you can redistribute it and/or modify |
| 7 | # it under the terms of the GNU General Public License as published by |
| 8 | # the Free Software Foundation, either version 3 of the License, or |
| 9 | # (at your option) any later version. |
| 10 | # |
| 11 | # This program is distributed in the hope that it will be useful, |
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | # GNU General Public License for more details. |
| 15 | # |
| 16 | # You should have received a copy of the GNU General Public License |
| 17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | |
| 19 | set -exu |
| 20 | |
| 21 | #Required variables |
| 22 | GERRIT_NAME=${GERRIT_NAME:-} |
| 23 | WORKSPACE=${WORKSPACE:-} |
| 24 | conf=${conf:-} |
| 25 | |
| 26 | gerrit_url="https://${GERRIT_NAME}" |
| 27 | gerrit_query="&o=CURRENT_REVISION&o=DOWNLOAD_COMMANDS" |
| 28 | gerrit_json_query=".[0].revisions[.[0].current_revision].ref" |
| 29 | gerrit_json_query_status=".[0].status" |
| 30 | |
| 31 | possible_depends_on="lttng-ust|lttng-modules|userspace-rcu" |
| 32 | re="Depends-on: (${possible_depends_on}): ([^'$'\n'']*)" |
| 33 | property_file="${WORKSPACE}/gerrit_custom_dependencies.properties" |
| 34 | |
| 35 | # Create the property file even if it ends up being empty |
| 36 | touch "$property_file" |
| 37 | |
| 38 | # Move to lttng-tools source directory |
| 39 | pushd "${WORKSPACE}/src/lttng-tools" |
| 40 | |
| 41 | git rev-list --format=%B --max-count=1 HEAD | while read -r line; do |
| 42 | # Deactivate debug mode to prevent the gcc warning publisher from picking up |
| 43 | # compiler error present in the commit message. |
| 44 | set +x |
| 45 | if ! [[ ${line} =~ ${re} ]]; then |
| 46 | set -x |
| 47 | continue |
| 48 | fi |
| 49 | set -x |
| 50 | |
| 51 | project=${BASH_REMATCH[1]} |
| 52 | gerrit_id=${BASH_REMATCH[2]} |
| 53 | |
| 54 | project_sanitize=${BASH_REMATCH[1]//-/_} |
| 55 | |
| 56 | if [ "$conf" = "no-ust" ] && [ "$project" = "lttng-ust" ]; then |
| 57 | # No need to checkout lttng-ust for this configuration axis |
| 58 | continue |
| 59 | fi |
| 60 | |
| 61 | if [ "$project" = "lttng-modules" ]; then |
| 62 | if [ -d "$WORKSPACE/src/lttng-modules" ]; then |
| 63 | # Remove the regular modules sources to replace them with those |
| 64 | # from the gerrit change |
| 65 | rm -rf "$WORKSPACE/src/lttng-modules" |
| 66 | else |
| 67 | # This job does not require modules sources |
| 68 | continue |
| 69 | fi |
| 70 | fi |
| 71 | |
| 72 | # Export the GERRIT_DEP_... into the property file for further jenkins usage |
| 73 | echo "GERRIT_DEP_${project_sanitize^^}=${gerrit_id}" >> "$property_file" |
| 74 | # Deactivate tests for the project |
| 75 | echo "${project_sanitize^^}_RUN_TESTS=no" >> "$property_file" |
| 76 | |
| 77 | # Get the change latest ref |
| 78 | case $project in |
| 79 | lttng-*) |
| 80 | # This is necessary since a cherry pick can have the same change id |
| 81 | # across branches. Still this is only valid for projects where the |
| 82 | # branch name fits the same branch name style of the lttng-tools |
| 83 | # project. |
| 84 | # We will need to be much more clever if the situation arise where |
| 85 | # we need to depends-on a cherry picked change id for the |
| 86 | # userspace-rcu or babeltrace project. Until then let's use this |
| 87 | # hack. The quick solution to this is to tell the committer to change |
| 88 | # the change id. We could also be clever and require that the |
| 89 | # "branch name" be included in the `Depends-on` clause. |
| 90 | local_query="${gerrit_url}/changes/?q=change:${gerrit_id}+branch:${GERRIT_BRANCH}${gerrit_query}" |
| 91 | default_branch="${GERRIT_BRANCH}" |
| 92 | ;; |
| 93 | *) |
| 94 | local_query="${gerrit_url}/changes/?q=change:${gerrit_id}${gerrit_query}" |
| 95 | default_branch="master" |
| 96 | ;; |
| 97 | esac |
| 98 | |
| 99 | json_doc=$(curl "$local_query" | tail -n+2) |
| 100 | count=$(jq -r '. | length' <<< "$json_doc") |
| 101 | if [ "$count" != "1" ]; then |
| 102 | echo "Expected an array of size 1 got $count" |
| 103 | exit 1 |
| 104 | fi |
| 105 | |
| 106 | ref=$(jq -r "$gerrit_json_query" <<< "$json_doc") |
| 107 | change_status=$(jq -r "$gerrit_json_query_status" <<< "$json_doc") |
| 108 | if [ "$change_status" == "MERGED" ]; then |
| 109 | # When the change we depends on is merged use master as the ref. |
| 110 | # This is not ideal CI time wise since we do not reuse artifacts. |
| 111 | # This solve a tricky situation where we actually want to use master |
| 112 | # instead of the change available on gerrit. Intermediary changes |
| 113 | # present in master could have an impact on the change under test. |
| 114 | echo "Depends-on change is MERGED. Defaulting to ${default_branch}" |
| 115 | ref="refs/heads/$default_branch" |
| 116 | elif [ "$change_status" == "ABANDONED" ]; then |
| 117 | # We have a situation where the "HEAD" commit for feature branch are |
| 118 | # not merged and abandoned. Default to the master branch and hope |
| 119 | # for the best. This is far from ideal but we need might also need |
| 120 | # to find a better way to handle feature branch here. In the |
| 121 | # meantime use master for such cases. |
| 122 | echo "Depends-on change is ABANDONED. Defaulting to ${default_branch}" |
| 123 | ref="refs/heads/${default_branch}" |
| 124 | fi |
| 125 | |
| 126 | # The build.sh script from userspace-rcu expects the source to be located in |
| 127 | # `liburcu` instead of userspace-rcu. Accommodate for this here. |
| 128 | if [ "$project" = "userspace-rcu" ]; then |
| 129 | clone_directory="liburcu" |
| 130 | else |
| 131 | clone_directory="$project" |
| 132 | fi |
| 133 | |
| 134 | clone_directory="$WORKSPACE/src/$clone_directory" |
| 135 | |
| 136 | git clone "${gerrit_url}/${project}" "$clone_directory" |
| 137 | pushd "$clone_directory" |
| 138 | git fetch "${gerrit_url}/${project}" "$ref" |
| 139 | git checkout FETCH_HEAD |
| 140 | popd |
| 141 | done |
| 142 | |
| 143 | popd |