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#!/bin/bash
# Runs tests that are defined in the protobuf crate using Cargo. This also
# performs a publish dry-run, which catches some but not all issues that
# would prevent the crates from being published.
# This is not a hermetic task because Cargo will fetch the needed
# dependencies from crates.io
# --- begin runfiles.bash initialization ---
# Copy-pasted from Bazel's Bash runfiles library (tools/bash/runfiles/runfiles.bash).
set -euo pipefail
if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
if [[ -f "$0.runfiles_manifest" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles_manifest"
elif [[ -f "$0.runfiles/MANIFEST" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles/MANIFEST"
elif [[ -f "$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
export RUNFILES_DIR="$0.runfiles"
fi
fi
if [[ -f "${RUNFILES_DIR:-/dev/null}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
source "${RUNFILES_DIR}/bazel_tools/tools/bash/runfiles/runfiles.bash"
elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
source "$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \
"$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)"
else
echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash"
exit 1
fi
# --- end runfiles.bash initialization ---
TMP_DIR=$(mktemp -d)
trap 'rm -rf -- "$TMP_DIR"' EXIT
CARGO_HOME=$TMP_DIR/cargo_home
mkdir $CARGO_HOME
CRATE_ROOT=$TMP_DIR/protobuf
mkdir $CRATE_ROOT
PROTOBUF_TAR=$(rlocation com_google_protobuf/rust/release_crates/protobuf/protobuf_crate.tar)
echo "Expanding protobuf crate tar"
tar -xvf $PROTOBUF_TAR -C $CRATE_ROOT
CODEGEN_ROOT=$TMP_DIR/protobuf_codegen
mkdir $CODEGEN_ROOT
CODEGEN_TAR=$(rlocation com_google_protobuf/rust/release_crates/protobuf_codegen/protobuf_codegen_crate.tar)
echo "Expanding protobuf_codegen crate tar"
tar -xvf $CODEGEN_TAR -C $CODEGEN_ROOT
EXAMPLE_ROOT=$TMP_DIR/protobuf_example
mkdir $EXAMPLE_ROOT
EXAMPLE_TAR=$(rlocation com_google_protobuf/rust/release_crates/protobuf_example/protobuf_example_crate.tar)
echo "Expanding protobuf_example crate tar"
tar -xvf $EXAMPLE_TAR -C $EXAMPLE_ROOT
MACROS_ROOT=$TMP_DIR/protobuf_macros
mkdir $MACROS_ROOT
MACROS_TAR=$(rlocation com_google_protobuf/rust/release_crates/protobuf_macros/protobuf_macros_crate.tar)
echo "Expanding protobuf_macros crate tar"
tar -xvf $MACROS_TAR -C $MACROS_ROOT
WELL_KNOWN_TYPES_ROOT=$TMP_DIR/protobuf_well_known_types
mkdir $WELL_KNOWN_TYPES_ROOT
WELL_KNOWN_TYPES_TAR=$(rlocation com_google_protobuf/rust/release_crates/protobuf_well_known_types/protobuf_well_known_types_crate.tar)
echo "Expanding protobuf_well_known_types crate tar"
tar -xvf $WELL_KNOWN_TYPES_TAR -C $WELL_KNOWN_TYPES_ROOT
# Put the Bazel-built protoc at the beginning of $PATH
PATH=$(dirname $(rlocation com_google_protobuf/protoc)):$PATH
cd $CRATE_ROOT
CARGO_HOME=$CARGO_HOME cargo test
CARGO_HOME=$CARGO_HOME cargo publish --dry-run
cd $CODEGEN_ROOT
CARGO_HOME=$CARGO_HOME cargo test
CARGO_HOME=$CARGO_HOME cargo publish --dry-run
cd $EXAMPLE_ROOT
CARGO_HOME=$CARGO_HOME cargo test
cd $MACROS_ROOT
# Macros should be tested by the main protobuf test suite.
CARGO_HOME=$CARGO_HOME cargo publish --dry-run
cd $WELL_KNOWN_TYPES_ROOT
CARGO_HOME=$CARGO_HOME cargo test
# TODO: Cannot enable this dry-run yet because it checks that the versions of
# its dependencies are published on crates.io, which they are definitely not
# in this case.
# See also https://github.com/rust-lang/cargo/issues/1169.
# CARGO_HOME=$CARGO_HOME cargo publish --dry-run
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