95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
// Copyright 2026 Alibaba Group
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmdutil
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import (
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"fmt"
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"strconv"
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"strings"
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"time"
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)
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// FlexTimeLayouts is the ordered list of time formats tried by ParseISOTimeToMillis.
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var FlexTimeLayouts = []string{
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time.RFC3339,
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"2006-01-02T15:04:05Z",
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"2006-01-02T15:04:05-07:00",
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"2006-01-02T15:04:05",
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"2006-01-02 15:04:05",
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"2006-01-02T15:04",
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"2006-01-02 15:04",
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"2006-01-02",
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"2006/01/02 15:04:05",
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"2006/01/02",
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"20060102",
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}
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// ParseISOTimeToMillis parses a time string into a millisecond Unix timestamp.
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// Supports RFC3339, UTC Z, timezone-less, space-separated, date-only, and more.
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// When the input lacks an explicit timezone, Asia/Shanghai is assumed.
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func ParseISOTimeToMillis(flagName, value string) (int64, error) {
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value = strings.TrimSpace(value)
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value = strings.Trim(value, "\"'")
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if value == "" {
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return 0, fmt.Errorf("flag --%s is required\n hint: example: 2026-03-10T14:00:00+08:00", flagName)
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}
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if isDecimalDigits(value) {
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switch len(value) {
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case 13:
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ms, err := strconv.ParseInt(value, 10, 64)
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if err == nil {
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return ms, nil
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}
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case 10:
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sec, err := strconv.ParseInt(value, 10, 64)
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if err == nil {
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return sec * 1000, nil
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}
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}
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}
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loc, _ := time.LoadLocation("Asia/Shanghai")
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if loc == nil {
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loc = time.Local
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}
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for _, layout := range FlexTimeLayouts {
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t, err := time.ParseInLocation(layout, value, loc)
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if err == nil {
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return t.UnixMilli(), nil
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}
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}
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return 0, fmt.Errorf(
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"cannot parse time for --%s (input: %q)\n hint: supported formats: 2026-03-23T14:00:00+08:00, 2026-03-23 14:00:00, 2026-03-23",
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flagName, value)
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}
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func isDecimalDigits(value string) bool {
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if value == "" {
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return false
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}
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for _, r := range value {
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if r < '0' || r > '9' {
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return false
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}
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}
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return true
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}
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// ValidateTimeRange checks that endMs is strictly after startMs.
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func ValidateTimeRange(startMs, endMs int64) error {
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if endMs <= startMs {
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return fmt.Errorf("--end must be after --start\n hint: swap the values or adjust the time range")
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}
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return nil
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}
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