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// 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 create contains functions for to create Resource objects. This will
// typically non-files.
package create
import (
"net/http"
"path"
"path/filepath"
"strings"
"time"
"github.com/gohugoio/hugo/hugofs/glob"
"github.com/gohugoio/hugo/hugofs"
"github.com/gohugoio/hugo/cache/filecache"
"github.com/gohugoio/hugo/common/hugio"
"github.com/gohugoio/hugo/resources"
"github.com/gohugoio/hugo/resources/resource"
)
// Client contains methods to create Resource objects.
// tasks to Resource objects.
type Client struct {
rs *resources.Spec
httpClient *http.Client
cacheGetResource *filecache.Cache
}
// New creates a new Client with the given specification.
func New(rs *resources.Spec) *Client {
return &Client{
rs: rs,
httpClient: &http.Client{
Timeout: 10 * time.Second,
},
cacheGetResource: rs.FileCaches.GetResourceCache(),
}
}
// Copy copies r to the new targetPath.
func (c *Client) Copy(r resource.Resource, targetPath string) (resource.Resource, error) {
return c.rs.ResourceCache.GetOrCreate(resources.ResourceCacheKey(targetPath), func() (resource.Resource, error) {
return resources.Copy(r, targetPath), nil
})
}
// Get creates a new Resource by opening the given filename in the assets filesystem.
func (c *Client) Get(filename string) (resource.Resource, error) {
filename = filepath.Clean(filename)
return c.rs.ResourceCache.GetOrCreate(resources.ResourceCacheKey(filename), func() (resource.Resource, error) {
return c.rs.New(resources.ResourceSourceDescriptor{
Fs: c.rs.BaseFs.Assets.Fs,
LazyPublish: true,
SourceFilename: filename,
})
})
}
// Match gets the resources matching the given pattern from the assets filesystem.
func (c *Client) Match(pattern string) (resource.Resources, error) {
return c.match("__match", pattern, nil, false)
}
func (c *Client) ByType(tp string) resource.Resources {
res, err := c.match(path.Join("_byType", tp), "**", func(r resource.Resource) bool { return r.ResourceType() == tp }, false)
if err != nil {
panic(err)
}
return res
}
// GetMatch gets first resource matching the given pattern from the assets filesystem.
func (c *Client) GetMatch(pattern string) (resource.Resource, error) {
res, err := c.match("__get-match", pattern, nil, true)
if err != nil || len(res) == 0 {
return nil, err
}
return res[0], err
}
func (c *Client) match(name, pattern string, matchFunc func(r resource.Resource) bool, firstOnly bool) (resource.Resources, error) {
pattern = glob.NormalizePathCaseSensitive(pattern)
partitions := glob.FilterGlobParts(strings.Split(pattern, "/"))
if len(partitions) == 0 {
partitions = []string{resources.CACHE_OTHER}
}
key := path.Join(name, path.Join(partitions...))
key = path.Join(key, pattern)
return c.rs.ResourceCache.GetOrCreateResources(key, func() (resource.Resources, error) {
var res resource.Resources
handle := func(info hugofs.FileMetaInfo) (bool, error) {
meta := info.Meta()
r, err := c.rs.New(resources.ResourceSourceDescriptor{
LazyPublish: true,
FileInfo: info,
OpenReadSeekCloser: func() (hugio.ReadSeekCloser, error) {
return meta.Open()
},
RelTargetFilename: meta.Path,
})
if err != nil {
return true, err
}
if matchFunc != nil && !matchFunc(r) {
return false, nil
}
res = append(res, r)
return firstOnly, nil
}
if err := hugofs.Glob(c.rs.BaseFs.Assets.Fs, pattern, handle); err != nil {
return nil, err
}
return res, nil
})
}
// FromString creates a new Resource from a string with the given relative target path.
func (c *Client) FromString(targetPath, content string) (resource.Resource, error) {
return c.rs.ResourceCache.GetOrCreate(path.Join(resources.CACHE_OTHER, targetPath), func() (resource.Resource, error) {
return c.rs.New(
resources.ResourceSourceDescriptor{
Fs: c.rs.FileCaches.AssetsCache().Fs,
LazyPublish: true,
OpenReadSeekCloser: func() (hugio.ReadSeekCloser, error) {
return hugio.NewReadSeekerNoOpCloserFromString(content), nil
},
RelTargetFilename: filepath.Clean(targetPath),
})
})
}
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