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1#!/bin/bash -eux
2
3source "$(dirname $0)/target_lists.sh"
4cd "$(dirname $0)/../../.."
5OUT_DIR=$(realpath ${OUT_DIR:-out})
6DIST_DIR=$(realpath ${DIST_DIR:-out/dist})
7
8
9read -ra PRODUCTS <<<"$(build/soong/soong_ui.bash --dumpvar-mode all_named_products)"
10
11FAILED_PRODUCTS=()
12PRODUCTS_WITH_BP2BUILD_DIFFS=()
13
14function report {
15  # Turn off -x so that we can see the printfs more clearly
16  set +x
17  # check if FAILED_PRODUCTS is not empty
18  if (( ${#FAILED_PRODUCTS[@]} )); then
19    printf "Failed products:\n"
20    printf '%s\n' "${FAILED_PRODUCTS[@]}"
21
22    # TODO(b/262192655): Support riscv64 products in Bazel.
23    # TODO(b/261023967): Don't fail the build until every product is OK and we want to prevent backsliding.
24    # exit 1
25  fi
26  if (( ${#PRODUCTS_WITH_BP2BUILD_DIFFS[@]} )); then
27    printf "\n\nProducts that produced different bp2build files from aosp_arm64:\n"
28    printf '%s\n' "${PRODUCTS_WITH_BP2BUILD_DIFFS[@]}"
29
30    # TODO(b/261023967): Don't fail the build until every product is OK and we want to prevent backsliding.
31    # exit 1
32  fi
33}
34
35trap report EXIT
36
37rm -rf "${DIST_DIR}/multiproduct_analysis"
38mkdir -p "${DIST_DIR}/multiproduct_analysis"
39
40# Create zip of the bp2build files for aosp_arm64. We'll check that all other products produce
41# identical bp2build files.
42# We have to run tar and gzip as separate commands because tar with -z doesn't provide an option
43# to not include a timestamp in the gzip header. (--mtime is only for the tar parts, not gzip)
44export TARGET_PRODUCT="aosp_arm64"
45build/soong/soong_ui.bash --make-mode --skip-soong-tests bp2build
46tar c --mtime='1970-01-01' -C out/soong/bp2build . | gzip -n > "${DIST_DIR}/multiproduct_analysis/reference_bp2build_files_aosp_arm64.tar.gz"
47
48total=${#PRODUCTS[@]}
49count=1
50
51for product in "${PRODUCTS[@]}"; do
52  echo "Product ${count}/${total}: ${product}"
53
54  # Ensure that all processes later use the same TARGET_PRODUCT.
55  export TARGET_PRODUCT="${product}"
56
57  # Re-run product config and bp2build for every TARGET_PRODUCT.
58  build/soong/soong_ui.bash --make-mode --skip-soong-tests bp2build
59  # Remove the ninja_build output marker file to communicate to buildbot that this is not a regular Ninja build, and its
60  # output should not be parsed as such.
61  rm -f out/ninja_build
62
63  rm -f out/multiproduct_analysis_current_bp2build_files.tar.gz
64  tar c --mtime='1970-01-01' -C out/soong/bp2build . | gzip -n > "${DIST_DIR}/multiproduct_analysis/bp2build_files_${product}.tar.gz"
65  if diff -q "${DIST_DIR}/multiproduct_analysis/bp2build_files_${product}.tar.gz" "${DIST_DIR}/multiproduct_analysis/reference_bp2build_files_aosp_arm64.tar.gz"; then
66    rm -f "${DIST_DIR}/multiproduct_analysis/bp2build_files_${product}.tar.gz"
67  else
68    PRODUCTS_WITH_BP2BUILD_DIFFS+=("${product}")
69  fi
70
71  STARTUP_FLAGS=(
72    # Keep the Bazel server alive, package cache hot and reduce excessive I/O
73    # and wall time by ensuring that max_idle_secs is longer than bp2build which
74    # runs in every loop. bp2build takes ~20 seconds to run, so set this to a
75    # minute to account for resource contention, but still ensure that the bazel
76    # server doesn't stick around after.
77    --max_idle_secs=60
78  )
79
80  FLAGS=(
81    --config=bp2build
82    --config=ci
83    --nobuild
84    --keep_going
85  )
86
87  build/bazel/bin/bazel ${STARTUP_FLAGS[@]} build ${FLAGS[@]} --config=linux_x86_64 -- ${BUILD_TARGETS} || \
88    FAILED_PRODUCTS+=("${product} --config=linux_x86_64")
89
90  build/bazel/bin/bazel ${STARTUP_FLAGS[@]} build ${FLAGS[@]} --config=android -- ${BUILD_TARGETS} || \
91    FAILED_PRODUCTS+=("${product} --config=android")
92
93  count=$((count+1))
94done
95
96