From 175c29b6db614b43145f38c0616d165fcfa76876 Mon Sep 17 00:00:00 2001
From: TEC <git@tecosaur.net>
Date: Tue, 9 Jan 2024 14:36:31 +0800
Subject: Potentially working initial implementation?

---
 module.go | 56 +++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 41 insertions(+), 15 deletions(-)

(limited to 'module.go')

diff --git a/module.go b/module.go
index 7b9fc56..72a5901 100644
--- a/module.go
+++ b/module.go
@@ -1,17 +1,15 @@
 package caddyfsgit
 
 import (
-	"errors"
-	"io"
 	"io/fs"
-	"path"
-	"strings"
-	"time"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
+	"go.uber.org/zap"
 
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
-	"github.com/go-git/go-git/v5/plumbing/filemode"
-	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/thediveo/gitrepofs"
 )
 
 func init() {
@@ -27,10 +25,10 @@ var (
 // FS provides a view into a specific git tree.
 type FS struct {
 	fs.ReadDirFS `json:"-"`
-	repoPath string `json:"path,omitempty"`
-	revision string `json:"revision,omitempty"`
-	repo  *git.Repository
-	logger *zap.Logger
+	repoPath     string `json:"path,omitempty"`
+	revision     string `json:"revision,omitempty"`
+	repo         *git.Repository
+	logger       *zap.Logger
 }
 
 // CaddyModule returns the Caddy module information.
@@ -44,13 +42,41 @@ func (FS) CaddyModule() caddy.ModuleInfo {
 func (fs *FS) Provision(ctx caddy.Context) error {
     repo, err := git.PlainOpen(fs.repoPath)
     if err != nil {
-        return fmt.Errorf("failed to open git repository: %w", err)
+		fs.logger.Error("failed to open git repository", zap.Error(err))
+        return err
     }
-	// TODO
-	return nil
+	fs.repo = repo
+    return nil
 }
 
 func (fs *FS) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
-	// TODO
+	// Do I need to do anything?
 	return nil
 }
+
+func (gfs *FS) RepoFS() (fs.FS, error) {
+    hash, err := gfs.repo.ResolveRevision(plumbing.Revision(gfs.revision))
+    if err != nil {
+		gfs.logger.Error("failed to resolve revision", zap.Error(err))
+        return nil, err
+    }
+    commit, err := gfs.repo.CommitObject(*hash)
+    if err != nil {
+		gfs.logger.Error("failed to get commit object", zap.Error(err))
+        return nil, err
+    }
+    tree, err := commit.Tree()
+    if err != nil {
+        gfs.logger.Error("failed to get tree object", zap.Error(err))
+		return nil, err
+    }
+	return gitrepofs.New(gfs.repo, tree, commit.Author.When), nil
+}
+
+func (gfs *FS) Open(name string) (fs.File, error) {
+	repofs, err := gfs.RepoFS()
+	if err != nil {
+		return nil, err
+	}
+	return repofs.Open(name)
+}
-- 
cgit v1.2.3-70-g09d2