#
# Writing this as "! git checkout ../outerspace" is wrong, because
# the failure could be due to a segv. We want a controlled failure.
+#
+# Accepts the following options:
+#
+# ok=<signal-name>[,<...>]:
+# Don't treat an exit caused by the given signal as error.
+# Multiple signals can be specified as a comma separated list.
+# Currently recognized signal names are: sigpipe, success.
+# (Don't use 'success', use 'test_might_fail' instead.)
test_must_fail () {
case "$1" in
#
# Writing "git config --unset all.configuration || :" would be wrong,
# because we want to notice if it fails due to segv.
+#
+# Accepts the same options as test_must_fail.
test_might_fail () {
test_must_fail ok=success "$@"
"$@"
)
}
+
+# convert stdin to pktline representation; note that empty input becomes an
+# empty packet, not a flush packet (for that you can just print 0000 yourself).
+packetize() {
+ cat >packetize.tmp &&
+ len=$(wc -c <packetize.tmp) &&
+ printf '%04x%s' "$(($len + 4))" &&
+ cat packetize.tmp &&
+ rm -f packetize.tmp
+}
+
+# Parse the input as a series of pktlines, writing the result to stdout.
+# Sideband markers are removed automatically, and the output is routed to
+# stderr if appropriate.
+#
+# NUL bytes are converted to "\\0" for ease of parsing with text tools.
+depacketize () {
+ perl -e '
+ while (read(STDIN, $len, 4) == 4) {
+ if ($len eq "0000") {
+ print "FLUSH\n";
+ } else {
+ read(STDIN, $buf, hex($len) - 4);
+ $buf =~ s/\0/\\0/g;
+ if ($buf =~ s/^[\x2\x3]//) {
+ print STDERR $buf;
+ } else {
+ $buf =~ s/^\x1//;
+ print $buf;
+ }
+ }
+ }
+ '
+}