42 lines
861 B
Go
42 lines
861 B
Go
package proptools
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import (
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"errors"
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"math"
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"strings"
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)
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func ShardBySize[T ~[]E, E any](toShard T, shardSize int) []T {
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if len(toShard) == 0 {
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return nil
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}
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ret := make([]T, 0, (len(toShard)+shardSize-1)/shardSize)
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for len(toShard) > shardSize {
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ret = append(ret, toShard[0:shardSize])
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toShard = toShard[shardSize:]
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}
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if len(toShard) > 0 {
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ret = append(ret, toShard)
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}
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return ret
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}
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func ShardByCount[T ~[]E, E any](toShard T, shardCount int) []T {
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return ShardBySize(toShard, int(math.Ceil(float64(len(toShard))/float64(shardCount))))
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}
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// MergeErrors merges a list of errors into a single error.
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func MergeErrors(errs []error) error {
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if errs != nil {
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var sb strings.Builder
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for i, err := range errs {
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if i != 0 {
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sb.WriteString("\n")
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}
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sb.WriteString(err.Error())
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}
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return errors.New(sb.String())
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}
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return nil
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}
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