scripts/lttng-tools/gerrit-depends-on.sh

   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=".revisions[.current_revision].ref"
  29 gerrit_json_query_status=".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
  75     # Get the change latest ref
  76     ref=$(curl "${gerrit_url}/changes/${gerrit_id}${gerrit_query}" | tail -n+2 | jq -r "$gerrit_json_query")
  77     change_status=$(curl "${gerrit_url}/changes/${gerrit_id}${gerrit_query}" | tail -n+2 | jq -r "$gerrit_json_query_status")
  78     if [ "$change_status" == "MERGED" ]; then
  79             # When the change we depends on is merged use master as the ref.
  80             # This is not ideal CI time wise since we do not reuse artifacts.
  81             # This solve a tricky situation where we actually want to use master
  82             # instead of the change available on gerrit. Intermediary changes
  83             # present in master could have an impact on the change under test.
  84             ref="refs/heads/master"
  85     elif [ "$change_status" == "ABANDONED" ]; then
  86             # We have a situation where the "HEAD" commit for feature branch are
  87             # not merged and abandoned. Default to the master branch and hope
  88             # for the best. This is far from ideal but we need might also need
  89             # to find a better way to handle feature branch here. In the
  90             # meantime use master for such cases.
  91             echo "Depends-on change is ABANDONED. Defaulting to master"
  92             ref="refs/heads/master"
  93     fi
  94
  95     # The build.sh script from userspace-rcu expects the source to be located in
  96     # `liburcu` instead of userspace-rcu. Accommodate for this here.
  97     if [ "$project" = "userspace-rcu" ]; then
  98         clone_directory="liburcu"
  99     else
 100         clone_directory="$project"
 101     fi
 102
 103     clone_directory="$WORKSPACE/src/$clone_directory"
 104
 105     git clone "${gerrit_url}/${project}" "$clone_directory"
 106     pushd "$clone_directory"
 107     git fetch "${gerrit_url}/${project}" "$ref"
 108     git checkout FETCH_HEAD
 109     popd
 110 done
 111
 112 popd