Files
gitea/modules/setting/cache_test.go
mohammad rahimi 1e42317b66 feat(setting): add shared [redis] section as default for redis-backed subsystems (#38550)
Adds a shared `[redis]` config section with a single `CONN_STR` key that
acts as the default Redis connection for every redis-backed subsystem
whose own connection string is empty: `[cache].HOST`,
`[session].PROVIDER_CONFIG`, `[queue].CONN_STR` and
`[global_lock].SERVICE_CONN_STR`.

Precedence: per-subsystem value > shared `[redis].CONN_STR` > existing
built-in defaults. Fully backward compatible: when `[redis]` is not set,
every code path behaves exactly as before.

Motivation: today an admin with one Redis instance has to repeat the
same connection string in up to four places (five once WebSocket lands).
Requested by @wxiaoguang in [this review
discussion](https://github.com/go-gitea/gitea/pull/36965#discussion_r3613306976)
as a prerequisite for #36965. This follows the pattern used by GitLab
and Mastodon: one global Redis definition, per-subsystem overrides fall
back to it.

Since #12385 all identical connection strings already share one client
via `nosql.Manager`, so pointing all subsystems at `[redis].CONN_STR`
naturally converges onto a single shared connection pool.

Covered by table-driven unit tests per subsystem (fallback applies, own
value wins, absent `[redis]` = unchanged behavior). A config-cheat-sheet
update for gitea/docs will follow once this is merged.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: TheFox0x7 <thefox0x7@gmail.com>
2026-07-24 08:11:20 +00:00

72 lines
1.3 KiB
Go

// Copyright 2026 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package setting
import (
"testing"
"gitea.dev/modules/test"
"github.com/stretchr/testify/assert"
)
func TestCacheRedisSharedConnFallback(t *testing.T) {
tests := []struct {
name string
iniStr string
wantConn string
}{
{
name: "redis adapter with empty HOST falls back to shared [redis]",
iniStr: `
[redis]
CONN_STR = redis://127.0.0.1:6379/0
[cache]
ADAPTER = redis
`,
wantConn: "redis://127.0.0.1:6379/0",
},
{
name: "cache HOST wins over shared [redis]",
iniStr: `
[redis]
CONN_STR = redis://127.0.0.1:6379/0
[cache]
ADAPTER = redis
HOST = redis://10.0.0.1:6379/1
`,
wantConn: "redis://10.0.0.1:6379/1",
},
{
name: "no shared [redis] keeps previous behavior (empty conn)",
iniStr: `
[cache]
ADAPTER = redis
`,
wantConn: "",
},
{
name: "memcache adapter is never affected by shared [redis]",
iniStr: `
[redis]
CONN_STR = redis://127.0.0.1:6379/0
[cache]
ADAPTER = memcache
`,
wantConn: "",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
defer test.MockVariableValue(&Redis)()
cfg, err := NewConfigProviderFromData(tt.iniStr)
assert.NoError(t, err)
loadRedisFrom(cfg)
loadCacheFrom(cfg)
assert.Equal(t, tt.wantConn, CacheService.Conn)
})
}
}