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|
package commands
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"regexp"
"strconv"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/lazygit/pkg/i18n"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/sirupsen/logrus"
)
// context:
// here we get the commits from git log but format them to show whether they're
// unpushed/pushed/merged into the base branch or not, or if they're yet to
// be processed as part of a rebase (these won't appear in git log but we
// grab them from the rebase-related files in the .git directory to show them
// if we find out we need to use one of these functions in the git.go file, we
// can just pull them out of here and put them there and then call them from in here
const SEPARATION_CHAR = "|"
// CommitListBuilder returns a list of Branch objects for the current repo
type CommitListBuilder struct {
Log *logrus.Entry
GitCommand *GitCommand
OSCommand *OSCommand
Tr *i18n.Localizer
CherryPickedCommits []*Commit
}
// NewCommitListBuilder builds a new commit list builder
func NewCommitListBuilder(log *logrus.Entry, gitCommand *GitCommand, osCommand *OSCommand, tr *i18n.Localizer, cherryPickedCommits []*Commit) (*CommitListBuilder, error) {
return &CommitListBuilder{
Log: log,
GitCommand: gitCommand,
OSCommand: osCommand,
Tr: tr,
CherryPickedCommits: cherryPickedCommits,
}, nil
}
// extractCommitFromLine takes a line from a git log and extracts the sha, message, date, and tag if present
// then puts them into a commit object
// example input:
// 8ad01fe32fcc20f07bc6693f87aa4977c327f1e1|10 hours ago|Jesse Duffield| (HEAD -> master, tag: v0.15.2)|refresh commits when adding a tag
func (c *CommitListBuilder) extractCommitFromLine(line string) *Commit {
split := strings.Split(line, SEPARATION_CHAR)
sha := split[0]
unixTimestamp := split[1]
author := split[2]
extraInfo := strings.TrimSpace(split[3])
message := strings.Join(split[4:], SEPARATION_CHAR)
tags := []string{}
if extraInfo != "" {
re := regexp.MustCompile(`tag: ([^,\)]+)`)
tagMatch := re.FindStringSubmatch(extraInfo)
if len(tagMatch) > 1 {
tags = append(tags, tagMatch[1])
}
}
unitTimestampInt, _ := strconv.Atoi(unixTimestamp)
return &Commit{
Sha: sha,
Name: message,
Tags: tags,
ExtraInfo: extraInfo,
UnixTimestamp: int64(unitTimestampInt),
Author: author,
}
}
type GetCommitsOptions struct {
Limit bool
FilterPath string
}
// GetCommits obtains the commits of the current branch
func (c *CommitListBuilder) GetCommits(options GetCommitsOptions) ([]*Commit, error) {
commits := []*Commit{}
var rebasingCommits []*Commit
rebaseMode, err := c.GitCommand.RebaseMode()
if err != nil {
return nil, err
}
if rebaseMode != "" && options.FilterPath == "" {
// here we want to also prepend the commits that we're in the process of rebasing
rebasingCommits, err = c.getRebasingCommits(rebaseMode)
if err != nil {
return nil, err
}
if len(rebasingCommits) > 0 {
commits = append(commits, rebasingCommits...)
}
}
unpushedCommits := c.getUnpushedCommits()
cmd := c.getLogCmd(options)
err = RunLineOutputCmd(cmd, func(line string) (bool, error) {
if strings.Split(line, " ")[0] != "gpg:" {
commit := c.extractCommitFromLine(line)
_, unpushed := unpushedCommits[commit.ShortSha()]
commit.Status = map[bool]string{true: "unpushed", false: "pushed"}[unpushed]
commits = append(commits, commit)
}
return false, nil
})
if err != nil {
return nil, err
}
if rebaseMode != "" {
currentCommit := commits[len(rebasingCommits)]
blue := color.New(color.FgYellow)
youAreHere := blue.Sprintf("<-- %s ---", c.Tr.SLocalize("YouAreHere"))
currentCommit.Name = fmt.Sprintf("%s %s", youAreHere, currentCommit.Name)
}
commits, err = c.setCommitMergedStatuses(commits)
if err != nil {
return nil, err
}
return commits, nil
}
// getRebasingCommits obtains the commits that we're in the process of rebasing
func (c *CommitListBuilder) getRebasingCommits(rebaseMode string) ([]*Commit, error) {
switch rebaseMode {
case "normal":
return c.getNormalRebasingCommits()
case "interactive":
return c.getInteractiveRebasingCommits()
default:
return nil, nil
}
}
func (c *CommitListBuilder) getNormalRebasingCommits() ([]*Commit, error) {
rewrittenCount := 0
bytesContent, err := ioutil.ReadFile(fmt.Sprintf("%s/rebase-apply/rewritten", c.GitCommand.DotGitDir))
if err == nil {
content := string(bytesContent)
rewrittenCount = len(strings.Split(content, "\n"))
}
// we know we're rebasing, so lets get all the files whose names have numbers
commits := []*Commit{}
err = filepath.Walk(fmt.Sprintf("%s/rebase-apply", c.GitCommand.DotGitDir), func(path string, f os.FileInfo, err error) error {
if rewrittenCount > 0 {
rewrittenCount--
return nil
}
if err != nil {
return err
}
re := regexp.MustCompile(`^\d+$`)
if !re.MatchString(f.Name()) {
return nil
}
bytesContent, err := ioutil.ReadFile(path)
if err != nil {
return err
}
content := string(bytesContent)
commit, err := c.commitFromPatch(content)
if err != nil {
return err
}
commits = append([]*Commit{commit}, commits...)
return nil
})
if err != nil {
return nil, err
}
return commits, nil
}
// git-rebase-todo example:
// pick ac446ae94ee560bdb8d1d057278657b251aaef17 ac446ae
// pick afb893148791a2fbd8091aeb81deba4930c73031 afb8931
// git-rebase-todo.backup example:
// pick 49cbba374296938ea86bbd4bf4fee2f6ba5cccf6 third commit on master
// pick ac446ae94ee560bdb8d1d057278657b251aaef17 blah commit on master
// pick afb893148791a2fbd8091aeb81deba4930c73031 fourth commit on master
// getInteractiveRebasingCommits takes our git-rebase-todo and our git-rebase-todo.backup files
// and extracts out the sha and names of commits that we still have to go
// in the rebase:
func (c *CommitListBuilder) getInteractiveRebasingCommits() ([]*Commit, error) {
bytesContent, err := ioutil.ReadFile(fmt.Sprintf("%s/rebase-merge/git-rebase-todo", c.GitCommand.DotGitDir))
if err != nil {
c.Log.Info(fmt.Sprintf("error occurred reading git-rebase-todo: %s", err.Error()))
// we assume an error means the file doesn't exist so we just return
return nil, nil
}
commits := []*Commit{}
lines := strings.Split(string(bytesContent), "\n")
for _, line := range lines {
if line == "" || line == "noop" {
return commits, nil
}
if strings.HasPrefix(line,
|