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gitea/modules/templates/dynamic.go
zeripath 7d2545d183
Add nicer error handling on template compile errors (#21350)
There are repeated issues reported whereby users are unable to interpret
the template errors. This PR adds some (somewhat complex) error handling
to the panic recovery for template renderering but hopefully makes the
interpretation of the error easier.

Reference #21344

Signed-off-by: Andrew Thornton <art27@cantab.net>
2022-10-07 22:02:24 +01:00

90 lines
2.6 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 templates
import (
"html/template"
"io/fs"
"os"
"path/filepath"
texttmpl "text/template"
"code.gitea.io/gitea/modules/setting"
)
var (
subjectTemplates = texttmpl.New("")
bodyTemplates = template.New("")
)
// GetAsset returns asset content via name
func GetAsset(name string) ([]byte, error) {
bs, err := os.ReadFile(filepath.Join(setting.CustomPath, name))
if err != nil && !os.IsNotExist(err) {
return nil, err
} else if err == nil {
return bs, nil
}
return os.ReadFile(filepath.Join(setting.StaticRootPath, name))
}
// GetAssetFilename returns the filename of the provided asset
func GetAssetFilename(name string) (string, error) {
filename := filepath.Join(setting.CustomPath, name)
_, err := os.Stat(filename)
if err != nil && !os.IsNotExist(err) {
return filename, err
} else if err == nil {
return filename, nil
}
filename = filepath.Join(setting.StaticRootPath, name)
_, err = os.Stat(filename)
return filename, err
}
// walkTemplateFiles calls a callback for each template asset
func walkTemplateFiles(callback func(path, name string, d fs.DirEntry, err error) error) error {
if err := walkAssetDir(filepath.Join(setting.CustomPath, "templates"), true, callback); err != nil && !os.IsNotExist(err) {
return err
}
if err := walkAssetDir(filepath.Join(setting.StaticRootPath, "templates"), true, callback); err != nil && !os.IsNotExist(err) {
return err
}
return nil
}
// GetTemplateAssetNames returns list of template names
func GetTemplateAssetNames() []string {
tmpls := getDirTemplateAssetNames(filepath.Join(setting.CustomPath, "templates"))
tmpls2 := getDirTemplateAssetNames(filepath.Join(setting.StaticRootPath, "templates"))
return append(tmpls, tmpls2...)
}
func walkMailerTemplates(callback func(path, name string, d fs.DirEntry, err error) error) error {
if err := walkAssetDir(filepath.Join(setting.StaticRootPath, "templates", "mail"), false, callback); err != nil && !os.IsNotExist(err) {
return err
}
if err := walkAssetDir(filepath.Join(setting.CustomPath, "templates", "mail"), false, callback); err != nil && !os.IsNotExist(err) {
return err
}
return nil
}
// BuiltinAsset will read the provided asset from the embedded assets
// (This always returns os.ErrNotExist)
func BuiltinAsset(name string) ([]byte, error) {
return nil, os.ErrNotExist
}
// BuiltinAssetNames returns the names of the embedded assets
// (This always returns nil)
func BuiltinAssetNames() []string {
return nil
}