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lazygit/pkg/commands/git_commands/reflog_commit_loader.go

78 lines
2.5 KiB
Go

package git_commands
import (
"fmt"
"strconv"
"strings"
"github.com/jesseduffield/lazygit/pkg/commands/models"
"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
"github.com/jesseduffield/lazygit/pkg/common"
)
type ReflogCommitLoader struct {
*common.Common
cmd oscommands.ICmdObjBuilder
}
func NewReflogCommitLoader(common *common.Common, cmd oscommands.ICmdObjBuilder) *ReflogCommitLoader {
return &ReflogCommitLoader{
Common: common,
cmd: cmd,
}
}
// GetReflogCommits only returns the new reflog commits since the given lastReflogCommit
// if none is passed (i.e. it's value is nil) then we get all the reflog commits
func (self *ReflogCommitLoader) GetReflogCommits(lastReflogCommit *models.Commit, filterPath string) ([]*models.Commit, bool, error) {
commits := make([]*models.Commit, 0)
filterPathArg := ""
if filterPath != "" {
filterPathArg = fmt.Sprintf(" --follow -- %s", self.cmd.Quote(filterPath))
}
cmdObj := self.cmd.New(fmt.Sprintf(`git -c log.showSignature=false log -g --abbrev=40 --format="%s"%s`, "%h%x00%ct%x00%gs%x00%p", filterPathArg)).DontLog()
onlyObtainedNewReflogCommits := false
err := cmdObj.RunAndProcessLines(func(line string) (bool, error) {
fields := strings.SplitN(line, "\x00", 4)
if len(fields) <= 3 {
return false, nil
}
unixTimestamp, _ := strconv.Atoi(fields[1])
parentHashes := fields[3]
parents := []string{}
if len(parentHashes) > 0 {
parents = strings.Split(parentHashes, " ")
}
commit := &models.Commit{
Sha: fields[0],
Name: fields[2],
UnixTimestamp: int64(unixTimestamp),
Status: "reflog",
Parents: parents,
}
// note that the unix timestamp here is the timestamp of the COMMIT, not the reflog entry itself,
// so two consecutive reflog entries may have both the same SHA and therefore same timestamp.
// We use the reflog message to disambiguate, and fingers crossed that we never see the same of those
// twice in a row. Reason being that it would mean we'd be erroneously exiting early.
if lastReflogCommit != nil && commit.Sha == lastReflogCommit.Sha && commit.UnixTimestamp == lastReflogCommit.UnixTimestamp && commit.Name == lastReflogCommit.Name {
onlyObtainedNewReflogCommits = true
// after this point we already have these reflogs loaded so we'll simply return the new ones
return true, nil
}
commits = append(commits, commit)
return false, nil
})
if err != nil {
return nil, false, err
}
return commits, onlyObtainedNewReflogCommits, nil
}