Restart Init

git/repo.go

@@ -0,0 +1,104 @@
+package git
+
+import (
+	"fmt"
+	"os"
+	"sync"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+)
+
+type Repo struct {
+	Repo   *git.Repository
+	Path   string
+	URL    string
+	Branch string
+	latest *Commit
+	mu     sync.Mutex
+}
+
+func (r *Repo) String() string {
+	if r == nil {
+		return "<nil>"
+	}
+	return fmt.Sprintf("Path: %s\nURL: %s\nBranch: %s", r.Path, r.URL, r.Branch)
+}
+
+// INFO: If this return true, there are new commit(s) available
+func (c *Repo) Pull() (bool, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.URL == "" {
+		return false, NoURLProvidedError
+	}
+
+	if c.Branch == "" {
+		return false, NoPathProvidedError
+	}
+
+	if c.Path == "" {
+		return false, NoPathProvidedError
+	}
+
+	if c.Repo == nil {
+		return false, InvalidStateError
+	}
+
+	br := plumbing.NewBranchReferenceName(c.Branch)
+
+	wt, err := c.Repo.Worktree()
+	if err != nil {
+		return false, err
+	}
+	defer wt.Clean(&git.CleanOptions{Dir: true})
+
+	if err := wt.Pull(&git.PullOptions{
+		RemoteName:    "origin",
+		ReferenceName: br,
+		Progress:      os.Stdout,
+	}); err != nil && err != git.NoErrAlreadyUpToDate {
+		return false, err
+	} else if err == git.NoErrAlreadyUpToDate {
+		return false, nil
+	}
+
+	return true, nil
+}
+
+func (r *Repo) Latest() (*Commit, error) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if r.latest != nil {
+		c := *r.latest
+		return &c, nil
+	}
+
+	log, err := r.Repo.Log(&git.LogOptions{})
+	if err != nil {
+		return nil, err
+	}
+	defer log.Close()
+
+	commit, err := log.Next()
+	if err != nil {
+		return nil, err
+	}
+
+	r.latest = &Commit{
+		Repo:   r,
+		Branch: r.Branch,
+		Path:   r.Path,
+		URL:    r.URL,
+		Name:   commit.Author.Name,
+		Email:  commit.Author.Email,
+		Hash:   commit.Hash.String(),
+		Date:   commit.Author.When,
+	}
+
+	// WARNING: do not change this, return a copy of the data
+	// otherwise the commit might change unexpectedly
+	c := *r.latest
+	return &c, nil
+}