Merge nucleic/sleek-thistle-egret-fyej into dev
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Executable
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#!/bin/bash
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set -euo pipefail
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# Script to test shell script execution across different shells with detailed tracing
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# Usage: test-across-shells.sh --output-dir=DIR --oracle-shell=SHELL --test-shell=SHELL SCRIPT [ARGS...]
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# Color codes for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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usage() {
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cat >&2 <<EOF
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Usage: $0 [OPTIONS] [--] SCRIPT [ARGS...]
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Execute a shell script under both an oracle shell and a test shell, capturing
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stdout, stderr, and execution traces for comparison.
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Required Options:
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--output-dir=DIR Directory where output files will be placed
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--test-shell=SHELL Path to the shell under test
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Optional Options:
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--oracle-shell=SHELL Path to the oracle shell (default: bash)
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Arguments:
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-- Stop processing options (useful if SCRIPT starts with -)
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SCRIPT Path to the shell script to execute
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ARGS... Arguments to pass to the script (may include options like -v)
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Output Structure:
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<output-dir>/
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oracle/
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stdout.txt Standard output from oracle shell
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stderr.txt Standard error from oracle shell
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trace.txt Execution trace (set -x output)
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exit_code.txt Exit code from oracle shell
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test/
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stdout.txt Standard output from test shell
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stderr.txt Standard error from test shell
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trace.txt Execution trace (set -x output)
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exit_code.txt Exit code from test shell
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The script sets BASH_XTRACEFD=3 to redirect trace output to fd 3, enables
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tracing with 'set -x', and sets PS4 to include script name and line number.
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EOF
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exit 1
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}
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# Parse command-line arguments
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output_dir=""
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oracle_shell="bash"
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test_shell=""
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script_path=""
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declare -a script_args=()
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parsing_options=true
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while [[ $# -gt 0 ]]; do
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if [[ "$parsing_options" == true ]]; then
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case "$1" in
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--output-dir=*)
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output_dir="${1#*=}"
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shift
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;;
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--oracle-shell=*)
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oracle_shell="${1#*=}"
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shift
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;;
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--test-shell=*)
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test_shell="${1#*=}"
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shift
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;;
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--help|-h)
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usage
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;;
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--)
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# Stop parsing options, everything after this is for the script
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parsing_options=false
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shift
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;;
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-*)
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echo -e "${RED}Error: Unknown option: $1${NC}" >&2
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usage
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;;
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*)
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# First non-option argument is the script path
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script_path="$1"
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parsing_options=false
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shift
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;;
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esac
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else
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# We've stopped parsing options
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if [[ -z "$script_path" ]]; then
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script_path="$1"
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else
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script_args+=("$1")
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fi
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shift
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fi
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done
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# Validate required arguments
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if [[ -z "$output_dir" ]]; then
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echo -e "${RED}Error: --output-dir is required${NC}" >&2
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usage
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fi
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if [[ -z "$test_shell" ]]; then
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echo -e "${RED}Error: --test-shell is required${NC}" >&2
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usage
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fi
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if [[ -z "$script_path" ]]; then
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echo -e "${RED}Error: SCRIPT path is required${NC}" >&2
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usage
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fi
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if [[ ! -f "$script_path" ]]; then
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echo -e "${RED}Error: Script file not found: $script_path${NC}" >&2
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exit 1
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fi
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# Verify shells exist and are executable
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for shell_name in oracle_shell test_shell; do
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shell_path="${!shell_name}"
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if ! command -v "$shell_path" >/dev/null 2>&1; then
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echo -e "${RED}Error: Shell not found or not executable: $shell_path${NC}" >&2
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exit 1
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fi
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done
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# Create output directory structure
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mkdir -p "$output_dir/oracle"
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mkdir -p "$output_dir/test"
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# Log the parsed configuration
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echo -e "${BLUE}📋 Configuration:${NC}"
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echo " Oracle shell: $oracle_shell"
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echo " Test shell: $test_shell"
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echo " Script: $script_path"
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if [[ ${#script_args[@]} -gt 0 ]]; then
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echo " Arguments: ${script_args[*]}"
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else
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echo " Arguments: (none)"
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fi
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echo " Output dir: $output_dir"
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echo ""
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# Function to execute script under a given shell
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execute_with_shell() {
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local shell_path="$1"
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local output_subdir="$2"
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local stdout_file="$output_dir/$output_subdir/stdout.txt"
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local stderr_file="$output_dir/$output_subdir/stderr.txt"
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local trace_file="$output_dir/$output_subdir/trace.txt"
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local exit_code_file="$output_dir/$output_subdir/exit_code.txt"
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# Execute the shell with:
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# - BASH_XTRACEFD=3 set in the environment
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# - PS4 set to include script name and line number
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# - fd 3 redirected to trace file
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# - -x flag to enable tracing
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# - stdout to stdout file
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# - stderr to stderr file
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env BASH_XTRACEFD=3 PS4='+${BASH_SOURCE:-}:${LINENO:-}: ' \
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"$shell_path" -x "$script_path" "${script_args[@]}" \
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>"$stdout_file" \
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2>"$stderr_file" \
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3>"$trace_file"
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local exit_code=$?
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echo "$exit_code" > "$exit_code_file"
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return $exit_code
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}
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# Execute under oracle shell
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echo -e "${BLUE}🔍 Executing under oracle shell ($oracle_shell)...${NC}"
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if execute_with_shell "$oracle_shell" "oracle"; then
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oracle_exit=0
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echo -e "${GREEN}✅ Oracle shell completed successfully (exit code: 0)${NC}"
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else
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oracle_exit=$?
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echo -e "${YELLOW}⚠️ Oracle shell exited with code: $oracle_exit${NC}"
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fi
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# Execute under test shell
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echo -e "${BLUE}🧪 Executing under test shell ($test_shell)...${NC}"
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if execute_with_shell "$test_shell" "test"; then
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test_exit=0
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echo -e "${GREEN}✅ Test shell completed successfully (exit code: 0)${NC}"
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else
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test_exit=$?
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echo -e "${YELLOW}⚠️ Test shell exited with code: $test_exit${NC}"
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fi
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# Report results
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echo ""
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echo -e "📁 Execution complete. Output written to: $output_dir"
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echo " Oracle shell exit code: $oracle_exit"
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echo " Test shell exit code: $test_exit"
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echo ""
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if [[ $oracle_exit -eq $test_exit ]]; then
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echo -e "${GREEN}✅ Exit codes match ✓${NC}"
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else
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echo -e "${RED}❌ Exit codes differ ✗${NC}"
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fi
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# Exit with non-zero if the test results differ
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if [[ $oracle_exit -ne $test_exit ]]; then
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exit 1
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fi
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exit 0
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