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#!/hint/bash
# Copyright © Tavian Barnes <tavianator@tavianator.com>
# SPDX-License-Identifier: 0BSD
## Argument parsing
# Print usage information
usage() {
local pad=$(printf "%*s" ${#0} "")
color cat <<EOF
Usage: ${GRN}$0${RST} [${BLU}--bfs${RST}=${MAG}path/to/bfs${RST}] [${BLU}--sudo${RST}[=${BLD}COMMAND${RST}]] [${BLU}--stop${RST}]
$pad [${BLU}--no-clean${RST}] [${BLU}--update${RST}] [${BLU}--verbose${RST}[=${BLD}LEVEL${RST}]] [${BLU}--help${RST}]
$pad [${BLU}--posix${RST}] [${BLU}--bsd${RST}] [${BLU}--gnu${RST}] [${BLU}--all${RST}] [${BLD}TEST${RST} [${BLD}TEST${RST} ...]]
${BLU}--bfs${RST}=${MAG}path/to/bfs${RST}
Set the path to the bfs executable to test (default: ${MAG}./bin/bfs${RST})
${BLU}--sudo${RST}[=${BLD}COMMAND${RST}]
Run tests that require root using ${GRN}sudo${RST} or the given ${BLD}COMMAND${RST}
${BLU}--stop${RST}
Stop when the first error occurs
${BLU}--no-clean${RST}
Keep the test directories around after the run
${BLU}--update${RST}
Update the expected outputs for the test cases
${BLU}--verbose${RST}=${BLD}commands${RST}
Log the commands that get executed
${BLU}--verbose${RST}=${BLD}errors${RST}
Don't redirect standard error
${BLU}--verbose${RST}=${BLD}skipped${RST}
Log which tests get skipped
${BLU}--verbose${RST}=${BLD}tests${RST}
Log all tests that get run
${BLU}--verbose${RST}
Log everything
${BLU}--help${RST}
This message
${BLU}--posix${RST}, ${BLU}--bsd${RST}, ${BLU}--gnu${RST}, ${BLU}--all${RST}
Choose which test cases to run (default: ${BLU}--all${RST})
${BLD}TEST${RST}
Select individual test cases to run (e.g. ${BLD}posix/basic${RST}, ${BLD}"*exec*"${RST}, ...)
EOF
}
# Parse the command line
parse_args() {
PATTERNS=()
SUDO=()
STOP=0
CLEAN=1
UPDATE=0
VERBOSE_COMMANDS=0
VERBOSE_ERRORS=0
VERBOSE_SKIPPED=0
VERBOSE_TESTS=0
for arg; do
case "$arg" in
--bfs=*)
BFS="${arg#*=}"
;;
--posix)
PATTERNS+=("posix/*")
;;
--bsd)
PATTERNS+=("posix/*" "common/*" "bsd/*")
;;
--gnu)
PATTERNS+=("posix/*" "common/*" "gnu/*")
;;
--all)
PATTERNS+=("*")
;;
--sudo)
SUDO=(sudo)
;;
--sudo=*)
read -a SUDO <<<"${arg#*=}"
;;
--stop)
STOP=1
;;
--no-clean|--noclean)
CLEAN=0
;;
--update)
UPDATE=1
;;
--verbose=commands)
VERBOSE_COMMANDS=1
;;
--verbose=errors)
VERBOSE_ERRORS=1
;;
--verbose=skipped)
VERBOSE_SKIPPED=1
;;
--verbose=tests)
VERBOSE_TESTS=1
;;
--verbose)
VERBOSE_COMMANDS=1
VERBOSE_ERRORS=1
VERBOSE_SKIPPED=1
VERBOSE_TESTS=1
;;
--help)
usage
exit 0
;;
-*)
color printf "${RED}error:${RST} Unrecognized option '%s'.\n\n" "$arg" >&2
usage >&2
exit 1
;;
*)
PATTERNS+=("$arg")
;;
esac
done
# Try to resolve the path to $BFS before we cd, while also supporting
# --bfs="./bin/bfs -S ids"
read -a BFS <<<"${BFS:-$BIN/bfs}"
BFS[0]=$(_realpath "$(command -v "${BFS[0]}")")
if ((${#PATTERNS[@]} == 0)); then
PATTERNS=("*")
fi
TEST_CASES=()
ALL_TESTS=($(cd "$TESTS" && quote {posix,common,bsd,gnu,bfs}/*.sh))
for TEST in "${ALL_TESTS[@]}"; do
TEST="${TEST%.sh}"
for PATTERN in "${PATTERNS[@]}"; do
if [[ $TEST == $PATTERN ]]; then
TEST_CASES+=("$TEST")
break
fi
done
done
if ((${#TEST_CASES[@]} == 0)); then
color printf "${RED}error:${RST} No tests matched" >&2
color printf " ${BLD}%s${RST}" "${PATTERNS[@]}" >&2
color printf ".\n\n" >&2
usage >&2
exit 1
fi
}
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