73 lines
1.4 KiB
Go
73 lines
1.4 KiB
Go
package git
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import (
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"fmt"
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"github.com/go-git/go-git/v5"
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"github.com/go-git/go-git/v5/plumbing"
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"github.com/go-git/go-git/v5/plumbing/object"
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)
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type GitRepo struct {
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r *git.Repository
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h plumbing.Hash
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}
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func Open(path string, ref string) (*GitRepo, error) {
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var err error
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g := GitRepo{}
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g.r, err = git.PlainOpen(path)
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if err != nil {
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return nil, fmt.Errorf("opening %s: %w", path, err)
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}
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if ref == "" {
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head, err := g.r.Head()
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if err != nil {
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return nil, fmt.Errorf("getting head of %s: %w", path, err)
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}
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g.h = head.Hash()
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} else {
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hash, err := g.r.ResolveRevision(plumbing.Revision(ref))
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if err != nil {
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return nil, fmt.Errorf("resolving rev %s for %s: %w", ref, path, err)
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}
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g.h = *hash
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}
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return &g, nil
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}
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func (g *GitRepo) Commits() ([]*object.Commit, error) {
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ci, err := g.r.Log(&git.LogOptions{From: g.h})
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if err != nil {
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return nil, fmt.Errorf("commits from ref: %w", err)
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}
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commits := []*object.Commit{}
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ci.ForEach(func(c *object.Commit) error {
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commits = append(commits, c)
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return nil
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})
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return commits, nil
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}
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func (g *GitRepo) FileContent(path string) (string, error) {
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c, err := g.r.CommitObject(g.h)
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if err != nil {
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return "", fmt.Errorf("commit object: %w", err)
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}
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tree, err := c.Tree()
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if err != nil {
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return "", fmt.Errorf("file tree: %w", err)
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}
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file, err := tree.File(path)
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if err != nil {
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return "", err
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}
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return file.Contents()
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}
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