s

gitcmd/plumbing.go

@@ -0,0 +1,76 @@
+package gitcmd
+
+import (
+	"fmt"
+	"strings"
+)
+
+func (r *Repository) refSHA(ref string) (string, error) {
+	out, _, err := NewCommand("rev-parse", "--verify", "--quiet").
+		AddDynamicArguments(ref).
+		WithDir(r.Path).RunStdString(r.ctx)
+	if err != nil {
+		return "", nil
+	}
+	return strings.TrimSpace(out), nil
+}
+
+func (r *Repository) hashObject(content, dir string) (string, error) {
+	out, _, err := NewCommand("hash-object", "-w", "--stdin").
+		WithStdin(strings.NewReader(content)).
+		WithDir(dir).RunStdString(r.ctx)
+	if err != nil {
+		return "", fmt.Errorf("hash-object: %w", err)
+	}
+	return strings.TrimSpace(out), nil
+}
+
+func (r *Repository) commitTree(tree, message, authorName, authorEmail, dir string, parents ...string) (string, error) {
+	cmd := NewCommand("commit-tree").AddDynamicArguments(tree).WithDir(dir)
+	for _, p := range parents {
+		cmd.Add("-p").AddDynamicArguments(p)
+	}
+	cmd.WithEnv(
+		"GIT_AUTHOR_NAME="+authorName,
+		"GIT_AUTHOR_EMAIL="+authorEmail,
+		"GIT_COMMITTER_NAME="+authorName,
+		"GIT_COMMITTER_EMAIL="+authorEmail,
+	).WithStdin(strings.NewReader(message))
+	out, _, err := cmd.RunStdString(r.ctx)
+	if err != nil {
+		return "", fmt.Errorf("commit-tree: %w", err)
+	}
+	return strings.TrimSpace(out), nil
+}
+
+func (r *Repository) updateRef(ref, newSHA, expectedSHA string) error {
+	cmd := NewCommand("update-ref").AddDynamicArguments(ref, newSHA).WithDir(r.Path)
+	if expectedSHA != "" {
+		cmd.AddDynamicArguments(expectedSHA)
+	}
+	if _, _, err := cmd.RunStdString(r.ctx); err != nil {
+		return fmt.Errorf("update-ref %s: %w", ref, err)
+	}
+	return nil
+}
+
+func (r *Repository) isAncestor(ancestor, descendant string) bool {
+	err := NewCommand("merge-base", "--is-ancestor").
+		AddDynamicArguments(ancestor, descendant).
+		WithDir(r.Path).Run(r.ctx)
+	return err == nil
+}
+
+func (r *Repository) removePathFromIndex(dir, path string, env ...string) error {
+	entry := "0 " + strings.Repeat("0", 40) + "\t" + path + "\x00"
+	cmd := NewCommand("update-index", "--remove", "-z", "--index-info").
+		WithStdin(strings.NewReader(entry)).
+		WithDir(dir)
+	if len(env) > 0 {
+		cmd.WithEnv(env...)
+	}
+	if _, _, err := cmd.RunStdString(r.ctx); err != nil {
+		return fmt.Errorf("update-index --index-info (remove): %w", err)
+	}
+	return nil
+}