Add retries to syntestdata

synctestdata.ps1

@@ -1,5 +1,34 @@
 # Script that synchronizes the local test data
 
+Function Retry
+{
+	param(
+		[scriptblock]$Command
+	)
+
+	$Attempt = 1
+	$Sleep = 4
+
+	while ($true)
+	{
+		try
+		{
+			& $Command
+			return
+		}
+		catch
+		{
+			if ($Attempt -ge 5)
+			{
+				throw
+			}
+			Start-Sleep -Seconds $Sleep
+			$Attempt++
+			$Sleep = $Sleep * 2
+		}
+	}
+}
+
 $TestsInputDirectory = "tests\input"
 $TestSet = "public"
 $TestFiles = "outlook.pst"
@@ -24,5 +53,5 @@ ForEach ($TestFile in ${TestFiles} -split " ")
 	$Url = "https://raw.githubusercontent.com/libyal/testdata/refs/heads/main/pst/${UrlTestFile}"
 
 	$ProgressPreference = 'SilentlyContinue'
-	Invoke-WebRequest -Uri ${Url} -OutFile "${TestsInputDirectory}\${TestSet}\${TestFile}"
+	Retry { Invoke-WebRequest -Uri ${Url} -OutFile "${TestsInputDirectory}\${TestSet}\${TestFile}" }
 }

synctestdata.sh

@@ -5,6 +5,31 @@ TESTS_INPUT_DIRECTORY="tests/input"
 TEST_SET="public"
 TEST_FILES="outlook.pst"
 
+# Retries a command
+retry()
+{
+	ATTEMPT=1
+	SLEEP=4
+
+	while test ${ATTEMPT} -le 5
+	do
+		if "$@"
+		then
+			return 0
+		fi
+		if test ${ATTEMPT} -eq 5
+		then
+			echo "Unable to run: $*"
+
+			exit 1
+		fi
+		sleep ${SLEEP}
+
+		ATTEMPT=`expr ${ATTEMPT} + 1`
+		SLEEP=`expr ${SLEEP} \* 2`
+	done
+}
+
 mkdir -p "${TESTS_INPUT_DIRECTORY}/.pffexport_recovered"
 echo "-mrecovered" > "${TESTS_INPUT_DIRECTORY}/.pffexport_recovered/options"
 
@@ -14,5 +39,5 @@ for TEST_FILE in ${TEST_FILES}
 do
 	URL="https://raw.githubusercontent.com/libyal/testdata/refs/heads/main/pst/${TEST_FILE}"
 
-	curl -L -o "${TESTS_INPUT_DIRECTORY}/${TEST_SET}/${TEST_FILE}" ${URL}
+	retry curl -L -o "${TESTS_INPUT_DIRECTORY}/${TEST_SET}/${TEST_FILE}" ${URL}
 done