func mdPrintChanges()

in tools/relnotes/relnotes.go [185:247]
58 lines of code
22 McCabe index (conditional complexity)

func mdPrintChanges(changes []*generic.Changelist, byCategory bool) {
	printChange := func(change *generic.Changelist) {
		fmt.Printf("- ")
		content := change.Subject
		note := releaseNote(change)
		if note != "" && note != "yes" && note != "y" {
			// The release note contains content.
			content = note
		}

		fmt.Printf("%s", content)
		if len(change.AssociatedIssues) > 0 {
			fmt.Printf(" (")
			for i, issue := range change.AssociatedIssues {
				if i == 0 {
					fmt.Printf("[Issue %d](https://%s)", issue.Number, issue.Link)
				} else {
					fmt.Printf(", [%d](https://%s)", issue.Number, issue.Link)
				}
			}
			fmt.Printf(")")
		}
		fmt.Printf(" <!-- CL %d -->\n", change.Number)
	}
	// Group CLs by category or by first associated issue number.
	if byCategory {
		pkgMap := map[string][]*generic.Changelist{}
		for _, change := range changes {
			pkgMap[change.Category()] = append(pkgMap[change.Category()], change)
		}
		for _, changes := range pkgMap {
			for _, change := range changes {
				printChange(change)
			}
		}
	} else {
		sort.Slice(changes, func(i, j int) bool {
			// Sort first by associated issue, then by CL number.
			var iIssue, jIssue int // first associated issues
			if len(changes[i].AssociatedIssues) > 0 {
				iIssue = changes[i].AssociatedIssues[0].Number
			}
			if len(changes[j].AssociatedIssues) > 0 {
				jIssue = changes[j].AssociatedIssues[0].Number
			}
			if iIssue != 0 && jIssue != 0 {
				return iIssue < jIssue // sort CLs with issues first
			}
			return iIssue != 0 || changes[i].Number < changes[j].Number
		})

		currentChange := -1
		for i, change := range changes {
			if len(change.AssociatedIssues) > 0 && change.AssociatedIssues[0].Number != currentChange {
				currentChange = change.AssociatedIssues[0].Number
				fmt.Printf("CL(s) for issue %d:\n", currentChange)
			} else if len(change.AssociatedIssues) == 0 && (i == 0 || len(changes[i-1].AssociatedIssues) > 0) {
				fmt.Printf("CL(s) not associated with any issue:\n")
			}
			printChange(change)
		}
	}
}