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// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileContributor: Runxi Yu <https://runxiyu.org>
package main
import (
"fmt"
"io"
"net/http"
"os/exec"
)
func handle_repo_info(w http.ResponseWriter, r *http.Request, params map[string]any) (err error) {
var group_name, repo_name, repo_path string
group_name, repo_name = params["group_name"].(string), params["repo_name"].(string)
if err = database.QueryRow(r.Context(),
"SELECT r.filesystem_path FROM repos r JOIN groups g ON r.group_id = g.id WHERE g.name = $1 AND r.name = $2;",
group_name, repo_name,
).Scan(&repo_path); err != nil {
return err
}
w.Header().Set("Content-Type", "application/x-git-upload-pack-advertisement")
w.WriteHeader(http.StatusOK)
cmd := exec.Command("git", "upload-pack", "--stateless-rpc", "--advertise-refs", repo_path)
stdout, err := cmd.StdoutPipe()
if err != nil {
return err
}
defer func() {
_ = stdout.Close()
}()
cmd.Stderr = cmd.Stdout
if err = cmd.Start(); err != nil {
return err
}
if err = pack_line(w, "# service=git-upload-pack\n"); err != nil {
return err
}
if err = pack_flush(w); err != nil {
return
}
if _, err = io.Copy(w, stdout); err != nil {
return err
}
if err = cmd.Wait(); err != nil {
return err
}
return nil
}
// Taken from https://github.com/icyphox/legit, MIT license
func pack_line(w io.Writer, s string) error {
_, err := fmt.Fprintf(w, "%04x%s", len(s)+4, s)
return err
}
// Taken from https://github.com/icyphox/legit, MIT license
func pack_flush(w io.Writer) error {
_, err := fmt.Fprint(w, "0000")
return err
}
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