File: deflake.bash

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (26 lines) | stat: -rwxr-xr-x 772 bytes parent folder | download | duplicates (30) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
#!/usr/bin/env bash
# This script is used to deflake inherently flaky tsan tests.
# It is invoked from lit tests as:
# %deflake $THRESHOLD  mybinary
# which is then substituted by lit to:
# $(dirname %s)/deflake.bash $THRESHOLD mybinary
# - When TSAN_TEST_DEFLAKE_THRESHOLD is defined to a positive integer value,
#   THRESHOLD will be the defined value.
# - When TSAN_TEST_DEFLAKE_THRESHOLD is not defined, THRESHOLD will be 10.
# The script runs the target program up to $THRESHOLD times,
# until it fails (i.e. produces a race report).

THRESHOLD="${1}"
shift

# Early exit if $THRESHOLD is not a non-negative integer
[[  "${THRESHOLD}" =~ ^[0-9]+$ ]] || exit 1

while (( THRESHOLD-- )); do
	OUT=`$@ 2>&1`
	if [[ $? != 0 ]]; then
		echo "$OUT"
		exit 0
	fi
done
exit 1