| #!/bin/bash -u |
| # |
| # Copyright 2016 Google Inc. All Rights Reserved. |
| # |
| # This script is intended to be used by binary_search_state.py. It is to |
| # be used for testing/development of the binary search triage tool |
| # itself. It waits for the test setup script to build and install the |
| # image, then checks the hashes in the provided file. |
| # If the real hashes match the checksum hashes, then the image is 'good', |
| # otherwise it is 'bad'. This allows the rest of the bisecting tool |
| # to run without requiring help from the user (as it would if we were |
| # dealing with a real 'bad' image). |
| # |
| |
| # |
| # Initialize the value below before using this script!!! |
| # |
| # Make an md5sum of all the files you want to check. For example if you want |
| # file1, file2, and file3 to be found as bad items: |
| # |
| # md5sum file1 file2 file3 > checksum.out |
| # |
| # (Make sure you are hashing the files from your good build and that the hashes |
| # from good to bad build differ) |
| # |
| # Then set HASHES_FILE to be the path to 'checksum.out' |
| # In this example, file1, file2, file3 will be found as the bad files |
| # because their hashes won't match when from the bad build tree. This is |
| # assuming that the hashes between good/bad builds change. It is suggested to |
| # build good and bad builds at different optimization levels to help ensure |
| # each item has a different hash. |
| # |
| # WARNING: |
| # Make sure paths to all files are absolute paths or relative to |
| # binary_search_state.py |
| # |
| # cros_pkg bisector example: |
| # 1. Build good packages with -O1, bad packages with -O2 |
| # 2. cros_pkg/switch_to_good.sh pkg1 pkg2 pkg3 |
| # 3. md5sum pkg1 pkg2 pkg3 > checksum.out.cros_pkg |
| # 4. Set HASHES_FILE to be checksum.out.cros_pkg |
| # 5. Run the bisector with this test script |
| # |
| # |
| HASHES_FILE= |
| |
| if [[ -z "${HASHES_FILE}" || ! -f "${HASHES_FILE}" ]]; |
| then |
| echo "ERROR: HASHES_FILE must be intialized in common/hash_test.sh" |
| exit 3 |
| fi |
| |
| md5sum -c --status ${HASHES_FILE} |
| md5_result=$? |
| |
| |
| exit $md5_result |