Files
go-semantic-release/internal/gitutil/gitutil.go

141 lines
2.6 KiB
Go

package gitutil
import (
"fmt"
"sort"
"github.com/Masterminds/semver"
log "github.com/sirupsen/logrus"
"gopkg.in/src-d/go-git.v4"
"gopkg.in/src-d/go-git.v4/plumbing/object"
)
type Commit struct {
Message string
Author string
Hash string
}
type GitUtils struct {
Repository *git.Repository
}
func New(folder string) (*GitUtils, error) {
r, err := git.PlainOpen(folder)
if err != nil {
return nil, err
}
utils := &GitUtils{
Repository: r,
}
return utils, nil
}
func (g *GitUtils) GetHash() (string, error) {
ref, err := g.Repository.Head()
if err != nil {
return "", err
}
return ref.Hash().String(), nil
}
func (g *GitUtils) GetBranch() (string, error) {
ref, err := g.Repository.Head()
if err != nil {
return "", err
}
if !ref.Name().IsBranch() {
return "", fmt.Errorf("No branch found, found %s, please checkout a branch (git checkout <BRANCH>)", ref.Name().String())
}
return ref.Name().Short(), nil
}
func (g *GitUtils) GetLastVersion() (*semver.Version, string, error) {
log.Debugf("GetLastVersion")
tagObjects, err := g.Repository.TagObjects()
if err != nil {
return nil, "", err
}
var tags []*semver.Version
err = tagObjects.ForEach(func(t *object.Tag) error {
v, err := semver.NewVersion(t.Name)
if err != nil {
log.Debugf("Tag %s is not a valid version, skip", t.Name)
} else {
log.Debugf("Add tag %s", t.Name)
tags = append(tags, v)
}
return nil
})
if err != nil {
return nil, "", err
}
sort.Sort(sort.Reverse(semver.Collection(tags)))
if len(tags) == 0 {
log.Debugf("Found no tags")
return nil, "", nil
}
log.Debugf("Found old version %s", tags[0].String())
tag, err := g.Repository.Tag(tags[0].Original())
if err != nil {
return nil, "", err
}
tagObject, err := g.Repository.TagObject(tag.Hash())
if err != nil {
return nil, "", err
}
log.Debugf("Found old hash %s", tagObject.Target.String())
return tags[0], tagObject.Target.String(), nil
}
func (g *GitUtils) GetCommits(lastTagHash string) ([]Commit, error) {
log.Printf("Read head")
ref, err := g.Repository.Head()
if err != nil {
return nil, err
}
cIter, err := g.Repository.Log(&git.LogOptions{From: ref.Hash(), Order: git.LogOrderCommitterTime})
if err != nil {
return nil, err
}
var commits []Commit
var foundEnd bool
err = cIter.ForEach(func(c *object.Commit) error {
if c.Hash.String() == lastTagHash {
log.Infof("%s == %s", c.Hash.String(), lastTagHash)
foundEnd = true
}
if !foundEnd {
commit := Commit{
Message: c.Message,
Author: c.Committer.Name,
Hash: c.Hash.String(),
}
commits = append(commits, commit)
}
return nil
})
return commits, nil
}