hugo/langs/i18n/translationProvider.go
Bjørn Erik Pedersen 9185e11eff Reimplement archetypes
The old implementation had some issues, mostly related to the context (e.g. name, file paths) passed to the template.

This new implementation is using the exact same code path for evaluating the pages as in a regular build.

This also makes it more robust and easier to reason about in a multilingual setup.

Now, if you are explicit about the target path, Hugo will now always pick the correct mount and language:

```bash
hugo new content/en/posts/my-first-post.md
```

Fixes #9032
Fixes #7589
Fixes #9043
Fixes #9046
Fixes #9047
2021-10-16 15:22:03 +02:00

143 lines
3.7 KiB
Go

// Copyright 2017 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package i18n
import (
"encoding/json"
"strings"
"github.com/gohugoio/hugo/common/paths"
"github.com/gohugoio/hugo/common/herrors"
"golang.org/x/text/language"
yaml "gopkg.in/yaml.v2"
"github.com/gohugoio/go-i18n/v2/i18n"
"github.com/gohugoio/hugo/helpers"
toml "github.com/pelletier/go-toml/v2"
"github.com/gohugoio/hugo/deps"
"github.com/gohugoio/hugo/hugofs"
"github.com/gohugoio/hugo/source"
_errors "github.com/pkg/errors"
)
// TranslationProvider provides translation handling, i.e. loading
// of bundles etc.
type TranslationProvider struct {
t Translator
}
// NewTranslationProvider creates a new translation provider.
func NewTranslationProvider() *TranslationProvider {
return &TranslationProvider{}
}
// Update updates the i18n func in the provided Deps.
func (tp *TranslationProvider) Update(d *deps.Deps) error {
spec := source.NewSourceSpec(d.PathSpec, nil, nil)
bundle := i18n.NewBundle(language.English)
bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
bundle.RegisterUnmarshalFunc("yml", yaml.Unmarshal)
bundle.RegisterUnmarshalFunc("json", json.Unmarshal)
// The source dirs are ordered so the most important comes first. Since this is a
// last key win situation, we have to reverse the iteration order.
dirs := d.BaseFs.I18n.Dirs
for i := len(dirs) - 1; i >= 0; i-- {
dir := dirs[i]
src := spec.NewFilesystemFromFileMetaInfo(dir)
files, err := src.Files()
if err != nil {
return err
}
for _, file := range files {
if err := addTranslationFile(bundle, file); err != nil {
return err
}
}
}
tp.t = NewTranslator(bundle, d.Cfg, d.Log)
d.Translate = tp.t.Func(d.Language.Lang)
return nil
}
const artificialLangTagPrefix = "art-x-"
func addTranslationFile(bundle *i18n.Bundle, r source.File) error {
f, err := r.FileInfo().Meta().Open()
if err != nil {
return _errors.Wrapf(err, "failed to open translations file %q:", r.LogicalName())
}
b := helpers.ReaderToBytes(f)
f.Close()
name := r.LogicalName()
lang := paths.Filename(name)
tag := language.Make(lang)
if tag == language.Und {
name = artificialLangTagPrefix + name
}
_, err = bundle.ParseMessageFileBytes(b, name)
if err != nil {
if strings.Contains(err.Error(), "no plural rule") {
// https://github.com/gohugoio/hugo/issues/7798
name = artificialLangTagPrefix + name
_, err = bundle.ParseMessageFileBytes(b, name)
if err == nil {
return nil
}
}
return errWithFileContext(_errors.Wrapf(err, "failed to load translations"), r)
}
return nil
}
// Clone sets the language func for the new language.
func (tp *TranslationProvider) Clone(d *deps.Deps) error {
d.Translate = tp.t.Func(d.Language.Lang)
return nil
}
func errWithFileContext(inerr error, r source.File) error {
fim, ok := r.FileInfo().(hugofs.FileMetaInfo)
if !ok {
return inerr
}
meta := fim.Meta()
realFilename := meta.Filename
f, err := meta.Open()
if err != nil {
return inerr
}
defer f.Close()
err, _ = herrors.WithFileContext(
inerr,
realFilename,
f,
herrors.SimpleLineMatcher)
return err
}