forgejo/modules/options/dynamic.go
zeripath bb0ff77e46
Share HTML template renderers and create a watcher framework (#20218)
The recovery, API, Web and package frameworks all create their own HTML
Renderers. This increases the memory requirements of Gitea
unnecessarily with duplicate templates being kept in memory.

Further the reloading framework in dev mode for these involves locking
and recompiling all of the templates on each load. This will potentially
hide concurrency issues and it is inefficient.

This PR stores the templates renderer in the context and stores this
context in the NormalRoutes, it then creates a fsnotify.Watcher
framework to watch files.

The watching framework is then extended to the mailer templates which
were previously not being reloaded in dev.

Then the locales are simplified to a similar structure.

Fix #20210 
Fix #20211
Fix #20217

Signed-off-by: Andrew Thornton <art27@cantab.net>
2022-08-28 10:43:25 +01:00

129 lines
3.7 KiB
Go

// Copyright 2016 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.
//go:build !bindata
package options
import (
"fmt"
"io/fs"
"os"
"path"
"path/filepath"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
)
var directories = make(directorySet)
// Dir returns all files from static or custom directory.
func Dir(name string) ([]string, error) {
if directories.Filled(name) {
return directories.Get(name), nil
}
var result []string
customDir := path.Join(setting.CustomPath, "options", name)
isDir, err := util.IsDir(customDir)
if err != nil {
return []string{}, fmt.Errorf("Unabe to check if custom directory %s is a directory. %v", customDir, err)
}
if isDir {
files, err := util.StatDir(customDir, true)
if err != nil {
return []string{}, fmt.Errorf("Failed to read custom directory. %v", err)
}
result = append(result, files...)
}
staticDir := path.Join(setting.StaticRootPath, "options", name)
isDir, err = util.IsDir(staticDir)
if err != nil {
return []string{}, fmt.Errorf("unable to check if static directory %s is a directory. %v", staticDir, err)
}
if isDir {
files, err := util.StatDir(staticDir, true)
if err != nil {
return []string{}, fmt.Errorf("Failed to read static directory. %v", err)
}
result = append(result, files...)
}
return directories.AddAndGet(name, result), nil
}
// Locale reads the content of a specific locale from static or custom path.
func Locale(name string) ([]byte, error) {
return fileFromDir(path.Join("locale", name))
}
// WalkLocales reads the content of a specific locale from static or custom path.
func WalkLocales(callback func(path, name string, d fs.DirEntry, err error) error) error {
if err := walkAssetDir(filepath.Join(setting.StaticRootPath, "options", "locale"), callback); err != nil && !os.IsNotExist(err) {
return fmt.Errorf("failed to walk locales. Error: %w", err)
}
if err := walkAssetDir(filepath.Join(setting.CustomPath, "options", "locale"), callback); err != nil && !os.IsNotExist(err) {
return fmt.Errorf("failed to walk locales. Error: %w", err)
}
return nil
}
// Readme reads the content of a specific readme from static or custom path.
func Readme(name string) ([]byte, error) {
return fileFromDir(path.Join("readme", name))
}
// Gitignore reads the content of a specific gitignore from static or custom path.
func Gitignore(name string) ([]byte, error) {
return fileFromDir(path.Join("gitignore", name))
}
// License reads the content of a specific license from static or custom path.
func License(name string) ([]byte, error) {
return fileFromDir(path.Join("license", name))
}
// Labels reads the content of a specific labels from static or custom path.
func Labels(name string) ([]byte, error) {
return fileFromDir(path.Join("label", name))
}
// fileFromDir is a helper to read files from static or custom path.
func fileFromDir(name string) ([]byte, error) {
customPath := path.Join(setting.CustomPath, "options", name)
isFile, err := util.IsFile(customPath)
if err != nil {
log.Error("Unable to check if %s is a file. Error: %v", customPath, err)
}
if isFile {
return os.ReadFile(customPath)
}
staticPath := path.Join(setting.StaticRootPath, "options", name)
isFile, err = util.IsFile(staticPath)
if err != nil {
log.Error("Unable to check if %s is a file. Error: %v", staticPath, err)
}
if isFile {
return os.ReadFile(staticPath)
}
return []byte{}, fmt.Errorf("Asset file does not exist: %s", name)
}
// IsDynamic will return false when using embedded data (-tags bindata)
func IsDynamic() bool {
return true
}