Custom regexp external issues (#17624)
* Implement custom regular expression for external issue tracking. Signed-off-by: Alexander Beyn <malex@fatelectrons.org> * Fix syntax/style * Update repo.go * Set metas['regexp'] * gofmt * fix some tests * fix more tests * refactor frontend * use LRU cache for regexp * Update modules/markup/html_internal_test.go Co-authored-by: Alexander Beyn <malex@fatelectrons.org> Co-authored-by: techknowlogick <techknowlogick@gitea.io> Co-authored-by: Lauris BH <lauris@nix.lv> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>tokarchuk/v1.17
Sandro Santilli
2 years ago
committed by
GitHub
parent
5f618248a9
commit
52c2e82813
@ -0,0 +1,45 @@ |
||||
// Copyright 2022 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package regexplru |
||||
|
||||
import ( |
||||
"regexp" |
||||
|
||||
"code.gitea.io/gitea/modules/log" |
||||
|
||||
lru "github.com/hashicorp/golang-lru" |
||||
) |
||||
|
||||
var lruCache *lru.Cache |
||||
|
||||
func init() { |
||||
var err error |
||||
lruCache, err = lru.New(1000) |
||||
if err != nil { |
||||
log.Fatal("failed to new LRU cache, err: %v", err) |
||||
} |
||||
} |
||||
|
||||
// GetCompiled works like regexp.Compile, the compiled expr or error is stored in LRU cache
|
||||
func GetCompiled(expr string) (r *regexp.Regexp, err error) { |
||||
v, ok := lruCache.Get(expr) |
||||
if !ok { |
||||
r, err = regexp.Compile(expr) |
||||
if err != nil { |
||||
lruCache.Add(expr, err) |
||||
return nil, err |
||||
} |
||||
lruCache.Add(expr, r) |
||||
} else { |
||||
r, ok = v.(*regexp.Regexp) |
||||
if !ok { |
||||
if err, ok = v.(error); ok { |
||||
return nil, err |
||||
} |
||||
panic("impossible") |
||||
} |
||||
} |
||||
return r, nil |
||||
} |
||||
@ -0,0 +1,27 @@ |
||||
// Copyright 2022 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package regexplru |
||||
|
||||
import ( |
||||
"testing" |
||||
|
||||
"github.com/stretchr/testify/assert" |
||||
) |
||||
|
||||
func TestRegexpLru(t *testing.T) { |
||||
r, err := GetCompiled("a") |
||||
assert.NoError(t, err) |
||||
assert.True(t, r.MatchString("a")) |
||||
|
||||
r, err = GetCompiled("a") |
||||
assert.NoError(t, err) |
||||
assert.True(t, r.MatchString("a")) |
||||
|
||||
assert.EqualValues(t, 1, lruCache.Len()) |
||||
|
||||
_, err = GetCompiled("(") |
||||
assert.Error(t, err) |
||||
assert.EqualValues(t, 2, lruCache.Len()) |
||||
} |
||||
Loading…
Reference in new issue