ducktape: retry tinygo command

Tinygo has some race/bugs where it fails due to
tinygo-org/tinygo#4206

Add retries to mitigate.

Signed-off-by: Tyler Rockwood <[email protected]>

tests/docker/ducktape-deps/tinygo-wasi-transforms

@@ -2,19 +2,38 @@
 set -e
 set -x
 
+function retry {
+ local retries=$1
+ shift
+
+ local count=0
+ until "$@"; do
+ exit=$?
+ wait=$((2 ** $count))
+ count=$(($count + 1))
+ if [ $count -lt $retries ]; then
+ echo "Retry $count/$retries exited $exit, retrying..."
+ else
+ echo "Retry $count/$retries exited $exit, no more retries left."
+ return $exit
+ fi
+ done
+ return 0
+}
+
 mkdir -p /opt/transforms/tinygo/
 
 cd /transform-sdk/go/transform/internal/testdata
 
-tinygo build -target wasi -opt=z \
+retry 5 tinygo build -target wasi -opt=z \
  -panic print -scheduler none \
  -o "/opt/transforms/tinygo/identity.wasm" ./identity
 
-tinygo build -target wasi -opt=z \
+retry 5 tinygo build -target wasi -opt=z \
  -panic print -scheduler none \
  -o "/opt/transforms/tinygo/identity_logging.wasm" ./identity_logging
 
-tinygo build -target wasi -opt=z \
+retry 5 tinygo build -target wasi -opt=z \
  -panic print -scheduler none \
  -o "/opt/transforms/tinygo/tee.wasm" ./tee