changeloguru/internal/changelog/markdown.go

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package changelog
import (
"fmt"
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"strings"
"time"
"github.com/haunt98/changeloguru/internal/convention"
"github.com/haunt98/changeloguru/internal/markdown"
"github.com/haunt98/clock"
)
const (
title = "CHANGELOG"
defaultNodesLen = 10
firstLevel = 1
secondLevel = 2
thirdLevel = 3
)
func GenerateMarkdown(commits []convention.Commit, scopes map[string]struct{}, version string, when time.Time) []markdown.Node {
if len(commits) == 0 {
return nil
}
commitBases := make(map[string][]markdown.Node)
commitBases[addedType] = make([]markdown.Node, 0, defaultNodesLen)
commitBases[fixedType] = make([]markdown.Node, 0, defaultNodesLen)
commitBases[othersType] = make([]markdown.Node, 0, defaultNodesLen)
for _, commit := range commits {
// If scopes is empty or commit scope is empty, pass all commits
if len(scopes) != 0 && commit.Scope != "" {
// Skip commit outside scopes
if _, ok := scopes[commit.Scope]; !ok {
continue
}
}
t := getType(commit.Type)
switch t {
case addedType:
commitBases[addedType] = append(commitBases[addedType], markdown.NewListItem(commit.String()))
case fixedType:
commitBases[fixedType] = append(commitBases[fixedType], markdown.NewListItem(commit.String()))
case othersType:
commitBases[othersType] = append(commitBases[othersType], markdown.NewListItem(commit.String()))
default:
continue
}
}
// Adding each type and header to nodes
nodes := make([]markdown.Node, 0, len(commitBases[addedType])+len(commitBases[fixedType])+len(commitBases[othersType]))
if len(commitBases[addedType]) != 0 {
nodes = append(nodes, markdown.NewHeader(thirdLevel, addedType))
nodes = append(nodes, commitBases[addedType]...)
}
if len(commitBases[fixedType]) != 0 {
nodes = append(nodes, markdown.NewHeader(thirdLevel, fixedType))
nodes = append(nodes, commitBases[fixedType]...)
}
if len(commitBases[othersType]) != 0 {
nodes = append(nodes, markdown.NewHeader(thirdLevel, othersType))
nodes = append(nodes, commitBases[othersType]...)
}
// Adding title, version to nodes
versionHeader := fmt.Sprintf("%s (%s)", version, clock.FormatDate(when))
nodes = append([]markdown.Node{
markdown.NewHeader(firstLevel, title),
markdown.NewHeader(secondLevel, versionHeader),
}, nodes...)
return nodes
}
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func ParseMarkdown(data string) []markdown.Node {
lines := strings.Split(data, string(markdown.NewlineToken))
nodes := markdown.Parse(lines)
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// Remove title
if len(nodes) > 0 && markdown.Equal(nodes[0], markdown.NewHeader(firstLevel, title)) {
nodes = nodes[1:]
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}
return nodes
}