check-retry

Overview ¶

check-retry checks that variables modified inside retry callbacks are properly reset at the beginning of the callback body.

When a function like WithRetry or ReadWriteTransaction retries the callback, variables from the outer scope retain values from previous attempts. This can cause inflated counters, duplicate entries, or stale results.

Usage ¶

check-retry ./...

Bad ¶

rows := []int{}
WithRetry(func() {
    rows = append(rows, 123)
})

Good ¶

var rows []int
WithRetry(func() {
    rows = []int{}
    rows = append(rows, 123)
})