| # Copyright 2019 The Hafnium Authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # Fail on any error. |
| set -e |
| # Fail on any part of a pipeline failing. |
| set -o pipefail |
| # Treat unset variables as an error. |
| set -u |
| # Display commands being run. |
| set -x |
| |
| # Returns absolute path to a file or a directory. The path must exist. |
| function abs_path() { |
| local rel_path="$1" |
| if [ -d "$rel_path" ] |
| then |
| # Parameter is a directory |
| local rel_dir="$rel_path" |
| local rel_base="" |
| elif [ -f "$rel_path" ] |
| then |
| # Parameter is a regular file |
| local rel_dir="$(dirname "$rel_path")" |
| local rel_base="/$(basename "$rel_path")" |
| else |
| # File does not exist |
| echo "File not found: $rel_path" >&2 |
| exit 1 |
| fi |
| echo "$(cd $rel_dir && pwd)$rel_base" |
| return 0 |
| } |
| |
| # Returns true if the environment contains Kokoro build variables. |
| function is_kokoro_build() { |
| [ -v KOKORO_JOB_NAME ] |
| return $? |
| } |
| |
| # Returns true if the `.repo_manifest` folder exists. The folder should contain |
| # the manifest and be present in all Repo builds. Eventually this should be |
| # obsolete as we switch exclusively to Repo. |
| function is_repo_build() { |
| [ -d "${ROOT_DIR}/.repo_manifest" ] |
| return $? |
| } |
| |
| # Returns absolute path to the source file that called this function. |
| function get_script_path() { |
| abs_path "${BASH_SOURCE[1]}" |
| } |
| |
| # Returns absolute path to the directory containing the source file that called |
| # this function. |
| function get_script_dir() { |
| local caller_path="${BASH_SOURCE[1]}" |
| local caller_abs_path="$(abs_path $caller_path)" |
| dirname "$caller_abs_path" |
| } |
| |
| # Assigns value (second arg) of a variable (first arg) if it is not set already. |
| function default_value { |
| local var_name=$1 |
| local value=$2 |
| export ${var_name}=${!var_name:-${value}} |
| } |
| |
| # Returns true if `git status` reports uncommitted changes in the source tree. |
| # Runs on all projects if Repo is detected. |
| function is_repo_dirty() { |
| local cmd=(git status --porcelain=v1) |
| |
| # Temporary workaround for b/152398137 (all symlinks dirty on Kokoro). |
| # All affected files are in submodules, skip them. |
| if [ "${HAFNIUM_IGNORE_SUBMODULE_STATUS:-false}" == "true" ] |
| then |
| cmd+=(--ignore-submodules) |
| fi |
| |
| if is_repo_build |
| then |
| # This source tree was checked out using `repo`. Check the |
| # status of all projects. |
| cmd=(${REPO} forall -c "${cmd[@]}") |
| fi |
| ! (u="$(${cmd[@]})" && test -z "$u") |
| return $? |
| } |
| |
| # Prepares the source directory for building. This includes setting global |
| # variables and workaronuds for different build environments. |
| function init_build() { |
| ## |
| ## Find Hafnium's root directory. |
| ## |
| ROOT_DIR="$(abs_path $(get_script_dir)/../..)" |
| # Temporary workaround for Repo builds. Check if there is a project |
| # folder specific to Repo builds in a parent directory. If it is, the |
| # root is further one level up. |
| if [ -d "${ROOT_DIR}/../.repo_manifest" ] |
| then |
| ROOT_DIR="$(dirname ${ROOT_DIR})" |
| fi |
| |
| ## |
| ## Paths to tools |
| ## |
| CLANG="${ROOT_DIR}/prebuilts/linux-x64/clang/bin/clang" |
| REPO="${ROOT_DIR}/prebuilts/generic/repo/repo" |
| |
| ## |
| ## Workarounds for Kokoro+Repo builds. |
| ## |
| if is_kokoro_build && is_repo_build |
| then |
| # Kokoro does not correctly initialize the `.repo` folder which |
| # causes `is_repo_dirty` checks to fail. We check out the |
| # manifest as one of the projects and use it to initialize the |
| # `.repo` folder here. |
| (cd "${ROOT_DIR}/.repo_manifest" && git branch master) |
| (cd "${ROOT_DIR}" && "${REPO}" init -u .repo_manifest) |
| # Kokoro does not support '<linkfile>' manifest tags. Parse the |
| # manifest and symlink files here. |
| "$(get_script_dir)/symlink_repo.py" "${ROOT_DIR}" |
| fi |
| |
| ## |
| ## Temporary workaround for b/152398137 (all symlinks dirty on Kokoro). |
| ## The `is_kokoro_build` check does not work inside container builds. |
| ## Use an environment variable with HAFNIUM_ prefix to pass that |
| ## information into the container (run_in_container.sh propagates them). |
| ## |
| if is_kokoro_build |
| then |
| export HAFNIUM_IGNORE_SUBMODULE_STATUS=true |
| fi |
| } |