From faa5ca8fab23176d390e9522f1485d467851545b Mon Sep 17 00:00:00 2001
From: Runxi Yu <me@runxiyu.org>
Date: Sun, 6 Apr 2025 01:55:21 +0800
Subject: Move stuff into internal/unsorted

---
 internal/unsorted/git_misc.go | 87 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 internal/unsorted/git_misc.go

(limited to 'internal/unsorted/git_misc.go')

diff --git a/internal/unsorted/git_misc.go b/internal/unsorted/git_misc.go
new file mode 100644
index 0000000..ceda3d1
--- /dev/null
+++ b/internal/unsorted/git_misc.go
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"context"
+	"errors"
+	"io"
+	"iter"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+// openRepo opens a git repository by group and repo name.
+//
+// TODO: This should be deprecated in favor of doing it in the relevant
+// request/router context in the future, as it cannot cover the nuance of
+// fields needed.
+func (s *Server) openRepo(ctx context.Context, groupPath []string, repoName string) (repo *git.Repository, description string, repoID int, fsPath string, err error) {
+	err = s.database.QueryRow(ctx, `
+WITH RECURSIVE group_path_cte AS (
+	-- Start: match the first name in the path where parent_group IS NULL
+	SELECT
+		id,
+		parent_group,
+		name,
+		1 AS depth
+	FROM groups
+	WHERE name = ($1::text[])[1]
+		AND parent_group IS NULL
+
+	UNION ALL
+
+	-- Recurse: join next segment of the path
+	SELECT
+		g.id,
+		g.parent_group,
+		g.name,
+		group_path_cte.depth + 1
+	FROM groups g
+	JOIN group_path_cte ON g.parent_group = group_path_cte.id
+	WHERE g.name = ($1::text[])[group_path_cte.depth + 1]
+		AND group_path_cte.depth + 1 <= cardinality($1::text[])
+)
+SELECT
+	r.filesystem_path,
+	COALESCE(r.description, ''),
+	r.id
+FROM group_path_cte g
+JOIN repos r ON r.group_id = g.id
+WHERE g.depth = cardinality($1::text[])
+	AND r.name = $2
+	`, pgtype.FlatArray[string](groupPath), repoName).Scan(&fsPath, &description, &repoID)
+	if err != nil {
+		return
+	}
+
+	repo, err = git.PlainOpen(fsPath)
+	return
+}
+
+// commitIterSeqErr creates an [iter.Seq[*object.Commit]] from an
+// [object.CommitIter], and additionally returns a pointer to error.
+// The pointer to error is guaranteed to be populated with either nil or the
+// error returned by the commit iterator after the returned iterator is
+// finished.
+func commitIterSeqErr(commitIter object.CommitIter) (iter.Seq[*object.Commit], *error) {
+	var err error
+	return func(yield func(*object.Commit) bool) {
+		for {
+			commit, err2 := commitIter.Next()
+			if err2 != nil {
+				if errors.Is(err2, io.EOF) {
+					return
+				}
+				err = err2
+				return
+			}
+			if !yield(commit) {
+				return
+			}
+		}
+	}, &err
+}
-- 
cgit v1.2.3