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Nikita Fomichev a78bcc708e utils: add auto-bisect script for ClickHouse regression bisection
Adds `utils/auto-bisect/` — a shell-based bisection framework that
downloads pre-built CI binaries and runs a user-supplied test script
to find the first bad commit.

Key features:
- Downloads public CI binaries from S3 by default; private CloudFront
  builds with `--private` (credentials via `CH_CI_BASIC_AUTH` env var,
  `CH_CI_USER`/`CH_CI_PASSWORD`, or `/etc/netrc`)
- Three environment modes: `single` (one server), `replicateddb` (two
  nodes + Keeper, Replicated database), `sharedcatalog` (two nodes +
  Keeper, SharedCatalog)
- Uses `git bisect --no-checkout` by default so the work tree is not
  modified during bisection
- Walker mode (`--walker`) for linear commit-by-commit testing
- Example test scripts in `tests/`

Tested locally: `--env nothing`, `--env single`, and `--env replicateddb`
all verified working.
2026-03-28 10:39:03 +01:00

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#!/bin/bash
set -e
#./bisect.sh --test tests/test_rmv_definer.sh --good af9a4c6a --bad b7c20bd6 --path /home/nik/work/clickhouse-private1/ --env nothing
(
cd $GIT_WORK_TREE/tests/integration || exit 1
echo "$PWD"
export CLICKHOUSE_TESTS_SERVER_BIN_PATH=$CH_PATH
# ODBC bridge isn't used
export CLICKHOUSE_TESTS_ODBC_BRIDGE_BIN_PATH=$CH_PATH
export CLICKHOUSE_TESTS_LIBRARY_BRIDGE_BIN_PATH=$CH_PATH
# If you want to reproduce it, copy the test directory and do not track it with git, otherwise you will encounter git conflicts
if ./runner test_storage_s3_pp/test_sts_smoke.py 2>&1 | tee /dev/tty | grep -q "Distributed task iterator is not initialized"; then
echo "Exiting with 1."
exit 1
else
echo "Exiting with 0."
exit 0
fi
)