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package main
import (
"crypto/sha1"
_ "embed"
"encoding/hex"
"errors"
"flag"
"io"
"io/fs"
"log"
"os"
"path/filepath"
"text/template"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
)
const configFile = ".ht_git2html"
//go:embed config.tmpl
var tmpl string
func main() {
var project string
var repo string
var link string
var branches string
var quiet bool
var force bool
flag.StringVar(&project, "p", "My project", "Choose a project name")
flag.StringVar(&repo, "r", "/path/to/repo", "Repository to clone from")
flag.StringVar(&link, "l", "http://host.org/project.git", "Public link to repo")
flag.StringVar(&branches, "b", "all", "List of branches")
flag.BoolVar(&quiet, "q", false, "Be quiet")
flag.BoolVar(&force, "f", false, "Force rebuilding of all pages")
flag.Parse()
log.Printf("%v %v %v %v %v %v", project, repo, link, branches, quiet, force)
args := os.Args
// if len(args) != 2 {
// log.Fatalf("jimmy: please specify a single target path")
// }
targetDir := args[len(args)-1]
if ok := filepath.IsAbs(targetDir); !ok {
cwd, err := os.Getwd()
if err != nil {
log.Fatalf("jimmy: %v", err)
}
targetDir = filepath.Join(cwd, targetDir)
}
// TODO: Look up more mode for 755 or 644.
if err := os.MkdirAll(targetDir, os.ModePerm); err != nil {
log.Fatalf("jimmy: unable to create target directory: %v", err)
}
configTmpl := template.Must(template.New("default").Parse(tmpl))
// TODO: Check file permissions are set to 0666.
// TODO: Read file if it exists.
outFile, err := os.Create(filepath.Join(targetDir, configFile))
if err != nil {
log.Fatalf("jimmy: unable to create config file: %v", err)
}
h := sha1.New()
if _, err := io.Copy(h, outFile); err != nil {
log.Fatal(err)
}
configTmpl.Execute(outFile, struct {
Project string
Repository string
PublicRepository string
Target string
Branches string
// SHA1SUM
Template string
}{
Project: project,
Repository: repo,
PublicRepository: link,
Target: targetDir,
Branches: branches,
Template: hex.EncodeToString(h.Sum(nil)),
})
// Repository
dirs := []string{"branches", "commits", "objects"}
for _, dir := range dirs {
d := filepath.Join(targetDir, dir)
// Clear existing dirs if force true.
if force && dir != "branches" {
if err := os.RemoveAll(d); err != nil {
log.Printf("jimmy: unable to remove directory: %v", err)
}
}
if err := os.MkdirAll(d, os.ModePerm); err != nil {
log.Printf("jimmy: unable to create directory: %v", err)
}
}
var pathError *fs.PathError
repoPath := filepath.Join(targetDir, "repository")
_, err = os.Stat(repoPath)
if errors.As(err, &pathError) {
localRepo, err := git.PlainClone(repoPath, false, &git.CloneOptions{
URL: repo,
Progress: os.Stdout,
})
commitObjects, err := localRepo.CommitObjects()
if err != nil {
log.Printf("%v", err)
}
commitObjects.ForEach(func(c *object.Commit) error {
log.Print(c)
return nil
})
localBranches, err := localRepo.Branches()
if err != nil {
log.Printf("%v", err)
}
branch, err := localBranches.Next()
if err != nil {
log.Printf("jimmy: failed to list branches: %v", err)
}
ref := plumbing.NewHashReference(branch.Name(), branch.Hash())
if err != nil {
log.Printf("jimmy: failed to create ref: %v", err)
}
workTree, err := localRepo.Worktree()
if err != nil {
log.Printf("jimmy: failed to open worktree: %v", err)
}
err = workTree.Checkout(&git.CheckoutOptions{
Hash: ref.Hash(),
})
if err != nil {
log.Printf("jimmy: failed to checkout detached HEAD: %v", err)
}
err = localRepo.Storer.RemoveReference(ref.Name())
if err != nil {
log.Printf("jimmy: failed to delete branch: %v", err)
}
}
}
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