hugo/hugofs/fs.go
Bjørn Erik Pedersen 597e418cb0
Make Page an interface
The main motivation of this commit is to add a `page.Page` interface to replace the very file-oriented `hugolib.Page` struct.
This is all a preparation step for issue  #5074, "pages from other data sources".

But this also fixes a set of annoying limitations, especially related to custom output formats, and shortcodes.

Most notable changes:

* The inner content of shortcodes using the `{{%` as the outer-most delimiter will now be sent to the content renderer, e.g. Blackfriday.
  This means that any markdown will partake in the global ToC and footnote context etc.
* The Custom Output formats are now "fully virtualized". This removes many of the current limitations.
* The taxonomy list type now has a reference to the `Page` object.
  This improves the taxonomy template `.Title` situation and make common template constructs much simpler.

See #5074
Fixes #5763
Fixes #5758
Fixes #5090
Fixes #5204
Fixes #4695
Fixes #5607
Fixes #5707
Fixes #5719
Fixes #3113
Fixes #5706
Fixes #5767
Fixes #5723
Fixes #5769
Fixes #5770
Fixes #5771
Fixes #5759
Fixes #5776
Fixes #5777
Fixes #5778
2019-03-23 18:51:22 +01:00

88 lines
2.4 KiB
Go

// Copyright 2019 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 hugofs provides the file systems used by Hugo.
package hugofs
import (
"os"
"github.com/gohugoio/hugo/config"
"github.com/spf13/afero"
)
// Os points to an Os Afero file system.
var Os = &afero.OsFs{}
// Fs abstracts the file system to separate source and destination file systems
// and allows both to be mocked for testing.
type Fs struct {
// Source is Hugo's source file system.
Source afero.Fs
// Destination is Hugo's destination file system.
Destination afero.Fs
// Os is an OS file system.
// NOTE: Field is currently unused.
Os afero.Fs
// WorkingDir is a read-only file system
// restricted to the project working dir.
WorkingDir *afero.BasePathFs
}
// NewDefault creates a new Fs with the OS file system
// as source and destination file systems.
func NewDefault(cfg config.Provider) *Fs {
fs := &afero.OsFs{}
return newFs(fs, cfg)
}
// NewMem creates a new Fs with the MemMapFs
// as source and destination file systems.
// Useful for testing.
func NewMem(cfg config.Provider) *Fs {
fs := &afero.MemMapFs{}
return newFs(fs, cfg)
}
// NewFrom creates a new Fs based on the provided Afero Fs
// as source and destination file systems.
// Useful for testing.
func NewFrom(fs afero.Fs, cfg config.Provider) *Fs {
return newFs(fs, cfg)
}
func newFs(base afero.Fs, cfg config.Provider) *Fs {
return &Fs{
Source: base,
Destination: base,
Os: &afero.OsFs{},
WorkingDir: getWorkingDirFs(base, cfg),
}
}
func getWorkingDirFs(base afero.Fs, cfg config.Provider) *afero.BasePathFs {
workingDir := cfg.GetString("workingDir")
if workingDir != "" {
return afero.NewBasePathFs(afero.NewReadOnlyFs(base), workingDir).(*afero.BasePathFs)
}
return nil
}
func isWrite(flag int) bool {
return flag&os.O_RDWR != 0 || flag&os.O_WRONLY != 0
}