1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
// 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 commands
import (
"os"
"path/filepath"
"github.com/gohugoio/hugo/hugolib/filesystems"
"github.com/fsnotify/fsnotify"
"github.com/gohugoio/hugo/helpers"
"github.com/spf13/fsync"
)
type staticSyncer struct {
c *commandeer
}
func newStaticSyncer(c *commandeer) (*staticSyncer, error) {
return &staticSyncer{c: c}, nil
}
func (s *staticSyncer) isStatic(filename string) bool {
return s.c.hugo().BaseFs.SourceFilesystems.IsStatic(filename)
}
func (s *staticSyncer) syncsStaticEvents(staticEvents []fsnotify.Event) error {
c := s.c
syncFn := func(sourceFs *filesystems.SourceFilesystem) (uint64, error) {
publishDir := c.hugo().PathSpec.PublishDir
// If root, remove the second '/'
if publishDir == "//" {
publishDir = helpers.FilePathSeparator
}
if sourceFs.PublishFolder != "" {
publishDir = filepath.Join(publishDir, sourceFs.PublishFolder)
}
syncer := fsync.NewSyncer()
syncer.NoTimes = c.Cfg.GetBool("noTimes")
syncer.NoChmod = c.Cfg.GetBool("noChmod")
syncer.ChmodFilter = chmodFilter
syncer.SrcFs = sourceFs.Fs
syncer.DestFs = c.Fs.Destination
if c.renderStaticToDisk {
syncer.DestFs = c.Fs.DestinationStatic
}
// prevent spamming the log on changes
logger := helpers.NewDistinctErrorLogger()
for _, ev := range staticEvents {
// Due to our approach of layering both directories and the content's rendered output
// into one we can't accurately remove a file not in one of the source directories.
// If a file is in the local static dir and also in the theme static dir and we remove
// it from one of those locations we expect it to still exist in the destination
//
// If Hugo generates a file (from the content dir) over a static file
// the content generated file should take precedence.
//
// Because we are now watching and handling individual events it is possible that a static
// event that occupies the same path as a content generated file will take precedence
// until a regeneration of the content takes places.
//
// Hugo assumes that these cases are very rare and will permit this bad behavior
// The alternative is to track every single file and which pipeline rendered it
// and then to handle conflict resolution on every event.
fromPath := ev.Name
relPath, found := sourceFs.MakePathRelative(fromPath)
if !found {
// Not member of this virtual host.
continue
}
// Remove || rename is harder and will require an assumption.
// Hugo takes the following approach:
// If the static file exists in any of the static source directories after this event
// Hugo will re-sync it.
// If it does not exist in all of the static directories Hugo will remove it.
//
// This assumes that Hugo has not generated content on top of a static file and then removed
// the source of that static file. In this case Hugo will incorrectly remove that file
// from the published directory.
if ev.Op&fsnotify.Rename == fsnotify.Rename || ev.Op&fsnotify.Remove == fsnotify.Remove {
if _, err := sourceFs.Fs.Stat(relPath); os.IsNotExist(err) {
// If file doesn't exist in any static dir, remove it
toRemove := filepath.Join(publishDir, relPath)
logger.Println("File no longer exists in static dir, removing", toRemove)
if c.renderStaticToDisk {
_ = c.Fs.DestinationStatic.RemoveAll(toRemove)
} else {
_ = c.Fs.Destination.RemoveAll(toRemove)
}
} else if err == nil {
// If file still exists, sync it
logger.Println("Syncing", relPath, "to", publishDir)
if err := syncer.Sync(filepath.Join(publishDir, relPath), relPath); err != nil {
c.logger.Errorln(err)
}
} else {
c.logger.Errorln(err)
}
continue
}
// For all other event operations Hugo will sync static.
logger.Println("Syncing", relPath, "to", publishDir)
if err := syncer.Sync(filepath.Join(publishDir, relPath), relPath); err != nil {
c.logger.Errorln(err)
}
}
return 0, nil
}
_, err := c.doWithPublishDirs(syncFn)
return err
}
|
