mirror of https://gerrit.osmocom.org/osmo-ci
Introduce artifacts holding dependencies to speed up builds.
Basically, osmo-build.sh holds logic to check whether the necessary artifact is available. If so it fetches artifact, unpacks it and triggers the actual build. In case the necessary artifact is not available osmo-build.sh simply builds all dependencies from source by using osmo-build-dep.sh and archives deps to the ARTIFACT_STORE afterwards. The necessary functions to determine the artifact name from remote and local repositories as well as the handling of artifact files live in osmo-artifacts.sh, which is sourced by osmo-build.sh. osmo-build.sh will be sourced by the contrib/jenkins.sh build script inside each git repository and invoked via 'build'. See jenkins-openBsc.sh [1] for more details. Artifacts will be stored as follows: $ARTIFACT_STORE/$JOB_NAME/<dep_1>.<branch_1>.<rev_1>_... ..._<dep_n>.<branch_n>.<rev_n>.tar.gz Furthermore, ARTIFACT_STORE environment variable has to be set on all jenkins slaves. The JOB_NAME variables is injected to each jenkins job by jenkins. [1] https://github.com/blobbsen/diy-artifacts/blob/master/jenkins-openBSC.sh Change-Id: Ifee0a2f837d23b19aa5326f810234d5452e47484
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#!/bin/bash
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#
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# This script enables artifacts holding dependencies on a jenkins job level to
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# speed up builds. Basically, it holds logic to check whether the necessary artifact
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# is available. If so it fetches artifact, unpacks it and if cp/tar succeeded
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# it triggers the actual build.
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#
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# Otherwise it simply builds all dependencies from source by using osmo-build-dep.sh
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# and archives deps to the ARTIFACT_STORE afterwards. Revisions of locally built
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# dependencies are detrmined after dependencies are built to ensure catching new
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# changes in dep_n+1 meanwhile dep_n building.
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#
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# Furthermore, ARTIFACT_STORE environment variable has to be set on all jenkins slaves.
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# The JOB_NAME variables will be injected to each jenkins' job by jenkins itself.
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# When using script within a docker container one must inject jenkins' JOB_NAME variable
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# to the container and ensure that ARTIFACT_STORE is mounted to the container's
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# internal ARTIFACT_STORE.
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#
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# Artifacts will be stored as follows:
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#
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# $ARTIFACT_STORE/$JOB_NAME/<dep_1>.<branch_1>.<rev_1>_...
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# ..._<dep_n>.<branch_n>.<rev_n>.tar.gz
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#
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# Note: each matrix-build has its own directory inside ARTIFACT_STORE.
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#
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# In order to make use of osmo-build.sh one needs to source it, e.g. from
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# ./contrib/jenkins.sh. Furthermore, jenkins should check out the git tree of
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# the project to be built in the workspace root. Following functions needs to be
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# declared within a build script that sources osmo-build.sh:
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#
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# - generic_deps()
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# - build_project()
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#
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# This is an example for building "libosmo-netif" which depends on "libosmocore"
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# and "libosmo-abis".
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#
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# #!/bin/bash
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#
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# # osmo-build.sh must be in PATH
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# source osmo-build.sh
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#
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# generic_deps() {
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# # Holds all required dependencies in the following form:
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# #
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# # x="$(<PARALLEL_MAKE> $1 <dep_project> <branch> <config>)"
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# #
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# # $1 will be one of these script/functions:
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# # - osmo-build-dep.sh: build a source tree
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# # - artifact_name_by_local_repos()
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# # - artifact_name_by_remote_repos()
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# #
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# # The arguments are:
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# #
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# # - PARALLEL_MAKE: override global PARALLEL_MAKE used for make,
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# # (e.g. PARALLEL_MAKE="-j1" to disable mutlithreading)
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# # - dep_project: the git repository name, gets places in a git.osmocom.org URL.
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# # - branch: branch (optional: default = master)
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# # - arg 3: configuration (optional: $cfg used in osmo-build-dep.sh)
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#
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# x="$($1 libosmocore master ac_cv_path_DOXYGEN=false)"
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# "$deps"/libosmocore/contrib/verify_value_string_arrays_are_terminated.py $(find . -name "*.[hc]")
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# x="${x}_$($1 libosmo-abis)"
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#
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# echo "${x}.tar.gz"
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# }
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#
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# build_project() {
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# # Necessary commands to build the project, expecting all dependencies have
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# # been build or fetched. Commands within build_project() will be executed
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# # in jenkins' $WORKSPACE.
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#
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# autoreconf --install --force
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# ./configure --enable-sanitize
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# $MAKE $PARALLEL_MAKE
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# $MAKE distcheck || cat-testlogs.sh
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# }
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#
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# build
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#
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# BUILD FUNCTIONS
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init_build() {
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if [ -z "$JOB_NAME" ]; then
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set +x
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echo
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echo "[ERROR] JOB_NAME variable is not set, running in Jenkins?"
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echo
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set -x
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exit 1
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fi
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if [ -z "$ARTIFACT_STORE" ]; then
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set +x
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echo
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echo "[ERROR] ARTIFACT_STORE variable is not set on this build slave"
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echo
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set -x
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exit 1
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fi
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base="$(pwd)"
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deps="$base/deps"
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inst="$deps/install"
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# obtain the project name from the git clone found in the workspace root
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project=$(git config --get --local remote.origin.url \
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| cut -d '/' -f4 | cut -d '.' -f1)
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# replace invalid char for dirs in jenkins variable
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# ( '/' separates job name and matrix-axis)
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job_name="${JOB_NAME//\//__}"
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export base deps inst project job_name
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export PKG_CONFIG_PATH="$inst/lib/pkgconfig:$PKG_CONFIG_PATH"
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export LD_LIBRARY_PATH="$inst/lib"
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}
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build_deps() {
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set +x
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echo
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echo "[INFO] Compile $project dependencies from source."
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echo
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set -x
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mkdir -p "$deps"
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rm -rf "$inst"
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generic_deps "osmo-build-dep.sh"
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}
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build() {
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init_build
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needed_artifact="$(artifact_name_by_remote_repos)"
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if [ -f "$ARTIFACT_STORE/$job_name/$needed_artifact" ]; then
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fetch_artifact "$ARTIFACT_STORE/$job_name" "$needed_artifact"
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else
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build_deps
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archive_artifact
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fi
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set +x
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echo
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echo " ============================= $project =========================="
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echo
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set -x
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build_project
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}
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# ARTIFACT FUNCTIONS
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artifact_name_by_local_repos() {
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generic_deps "branch_and_rev_of_local_repo"
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cd "$base"
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}
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artifact_name_by_remote_repos() {
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generic_deps "branch_and_rev_of_remote_repo"
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}
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branch_and_rev_of_local_repo() {
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cd "$deps/$1"
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rev=$(git rev-parse --short HEAD)
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branch=$(git rev-parse --abbrev-ref HEAD)
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echo "$1.${branch//\//__}.${rev}"
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}
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branch_and_rev_of_remote_repo() {
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if [ -z "${2+x}" ]; then branch="master"; else branch="$2"; fi
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rev=$(git ls-remote "https://git.osmocom.org/$1" "refs/heads/$branch")
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echo "$1.${branch//\//__}.${rev:0:7}"
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}
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archive_artifact() {
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set +x
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echo
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echo "[INFO] Archiving artifact to artifactStore."
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echo
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set -x
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cd "$base"
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artifact="$(artifact_name_by_local_repos)"
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# temp_job_store is necessary to atomically move it to production.
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temp_job_store="$ARTIFACT_STORE/tmp/$job_name/"
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job_store="$ARTIFACT_STORE/$job_name/"
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if [ ! -f "$temp_job_store/$artifact" ]; then
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mkdir -p "$job_store" "$temp_job_store"
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# remove outdated artifact first to avoid temporarily
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# doubling of artifact storage consumption
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rm -f "$job_store/*"
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tar czf "$temp_job_store/$artifact" "deps"
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mv -n "$temp_job_store/$artifact" "$job_store/$artifact"
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rm -rf "$temp_job_store"
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log_artifact_hashes "$job_store/$artifact"
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fi
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}
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fetch_artifact() {
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set +x
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echo
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echo "[INFO] Fetching artifact from artifactStore."
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echo
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set -x
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log_artifact_hashes "$1/$2"
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cp "$1/$2" .
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log_artifact_hashes "$2"
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tar xzf "$2"
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if [ $? -gt 0 ]; then
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set +x
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echo
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echo "[INFO] Artifact could not be fetched, triggering build_deps()"
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set -x
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build_deps()
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fi
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}
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# checksum is not used by this script itself,
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# but might be handy in logs when debugging.
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log_artifact_hashes() {
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set +x
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echo
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echo "[INFO] name: $1"
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echo "[INFO] sha256: $(sha256sum "$1" | cut -d ' ' -f1)"
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echo
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set -x
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}
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