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prow.sh: avoid creating paths unless really running tests #143

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Apr 27, 2021
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prow.sh: avoid creating paths unless really running tests #143

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37 changes: 23 additions & 14 deletions prow.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -159,11 +159,6 @@ kindest/node:v1.14.10@sha256:3fbed72bcac108055e46e7b4091eb6858ad628ec51bf693c21f
# Use kind node-image --type=bazel by default, but allow to disable that.
configvar CSI_PROW_USE_BAZEL true "use Bazel during 'kind node-image' invocation"

# Work directory. It has to allow running executables, therefore /tmp
# is avoided. Cleaning up after the script is intentionally left to
# the caller.
configvar CSI_PROW_WORK "$(mkdir -p "$GOPATH/pkg" && mktemp -d "$GOPATH/pkg/csiprow.XXXXXXXXXX")" "work directory"

# By default, this script tests sidecars with the CSI hostpath driver,
# using the install_csi_driver function. That function depends on
# a deployment script that it searches for in several places:
Expand Down Expand Up @@ -361,10 +356,23 @@ configvar CSI_SNAPSHOTTER_VERSION "$(default_csi_snapshotter_version)" "external
# to all the K8s versions we test against
configvar CSI_PROW_E2E_SKIP 'Disruptive|different\s+node' "tests that need to be skipped"

# This is the directory for additional result files. Usually set by Prow, but
# if not (for example, when invoking manually) it defaults to the work directory.
configvar ARTIFACTS "${CSI_PROW_WORK}/artifacts" "artifacts"
mkdir -p "${ARTIFACTS}"
# This creates directories that are required for testing.
ensure_paths () {
# Work directory. It has to allow running executables, therefore /tmp
# is avoided. Cleaning up after the script is intentionally left to
# the caller.
configvar CSI_PROW_WORK "$(mkdir -p "$GOPATH/pkg" && mktemp -d "$GOPATH/pkg/csiprow.XXXXXXXXXX")" "work directory"

# This is the directory for additional result files. Usually set by Prow, but
# if not (for example, when invoking manually) it defaults to the work directory.
configvar ARTIFACTS "${CSI_PROW_WORK}/artifacts" "artifacts"
mkdir -p "${ARTIFACTS}"

# For additional tools.
CSI_PROW_BIN="${CSI_PROW_WORK}/bin"
mkdir -p "${CSI_PROW_BIN}"
PATH="${CSI_PROW_BIN}:$PATH"
}

run () {
echo "$(date) $(go version | sed -e 's/.*version \(go[^ ]*\).*/\1/') $(if [ "$(pwd)" != "${REPO_DIR}" ]; then pwd; fi)\$" "$@" >&2
Expand All @@ -384,11 +392,6 @@ die () {
exit 1
}

# For additional tools.
CSI_PROW_BIN="${CSI_PROW_WORK}/bin"
mkdir -p "${CSI_PROW_BIN}"
PATH="${CSI_PROW_BIN}:$PATH"

# Ensure that PATH has the desired version of the Go tools, then run command given as argument.
# Empty parameter uses the already installed Go. In Prow, that version is kept up-to-date by
# bumping the container image regularly.
Expand Down Expand Up @@ -1098,6 +1101,9 @@ main () {
local images ret
ret=0

# Set up work directory.
ensure_paths

images=
if ${CSI_PROW_BUILD_JOB}; then
# A successful build is required for testing.
Expand Down Expand Up @@ -1259,6 +1265,9 @@ gcr_cloud_build () {
# Required for "docker buildx build --push".
gcloud auth configure-docker

# Might not be needed here, but call it just in case.
ensure_paths

if find . -name Dockerfile | grep -v ^./vendor | xargs --no-run-if-empty cat | grep -q ^RUN; then
# Needed for "RUN" steps on non-linux/amd64 platforms.
# See https://github.com/multiarch/qemu-user-static#getting-started
Expand Down