129 lines
3.8 KiB
Go
129 lines
3.8 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package create contains functions for to create Resource objects. This will
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// typically non-files.
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package create
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import (
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"path"
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"path/filepath"
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"strings"
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"github.com/gohugoio/hugo/hugofs/glob"
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"github.com/gohugoio/hugo/hugofs"
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"github.com/gohugoio/hugo/common/hugio"
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"github.com/gohugoio/hugo/resources"
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"github.com/gohugoio/hugo/resources/resource"
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)
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// Client contains methods to create Resource objects.
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// tasks to Resource objects.
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type Client struct {
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rs *resources.Spec
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}
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// New creates a new Client with the given specification.
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func New(rs *resources.Spec) *Client {
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return &Client{rs: rs}
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}
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// Get creates a new Resource by opening the given filename in the assets filesystem.
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func (c *Client) Get(filename string) (resource.Resource, error) {
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filename = filepath.Clean(filename)
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return c.rs.ResourceCache.GetOrCreate(resources.ResourceCacheKey(filename), func() (resource.Resource, error) {
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return c.rs.New(resources.ResourceSourceDescriptor{
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Fs: c.rs.BaseFs.Assets.Fs,
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LazyPublish: true,
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SourceFilename: filename,
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})
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})
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}
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// Match gets the resources matching the given pattern from the assets filesystem.
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func (c *Client) Match(pattern string) (resource.Resources, error) {
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return c.match(pattern, false)
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}
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// GetMatch gets first resource matching the given pattern from the assets filesystem.
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func (c *Client) GetMatch(pattern string) (resource.Resource, error) {
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res, err := c.match(pattern, true)
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if err != nil || len(res) == 0 {
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return nil, err
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}
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return res[0], err
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}
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func (c *Client) match(pattern string, firstOnly bool) (resource.Resources, error) {
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var name string
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if firstOnly {
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name = "__get-match"
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} else {
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name = "__match"
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}
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pattern = glob.NormalizePath(pattern)
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partitions := glob.FilterGlobParts(strings.Split(pattern, "/"))
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if len(partitions) == 0 {
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partitions = []string{resources.CACHE_OTHER}
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}
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key := path.Join(name, path.Join(partitions...))
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key = path.Join(key, pattern)
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return c.rs.ResourceCache.GetOrCreateResources(key, func() (resource.Resources, error) {
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var res resource.Resources
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handle := func(info hugofs.FileMetaInfo) (bool, error) {
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meta := info.Meta()
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r, err := c.rs.New(resources.ResourceSourceDescriptor{
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LazyPublish: true,
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FileInfo: info,
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OpenReadSeekCloser: func() (hugio.ReadSeekCloser, error) {
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return meta.Open()
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},
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RelTargetFilename: meta.Path,
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})
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if err != nil {
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return true, err
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}
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res = append(res, r)
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return firstOnly, nil
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}
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if err := hugofs.Glob(c.rs.BaseFs.Assets.Fs, pattern, handle); err != nil {
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return nil, err
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}
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return res, nil
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})
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}
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// FromString creates a new Resource from a string with the given relative target path.
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func (c *Client) FromString(targetPath, content string) (resource.Resource, error) {
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return c.rs.ResourceCache.GetOrCreate(path.Join(resources.CACHE_OTHER, targetPath), func() (resource.Resource, error) {
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return c.rs.New(
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resources.ResourceSourceDescriptor{
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Fs: c.rs.FileCaches.AssetsCache().Fs,
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LazyPublish: true,
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OpenReadSeekCloser: func() (hugio.ReadSeekCloser, error) {
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return hugio.NewReadSeekerNoOpCloserFromString(content), nil
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},
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RelTargetFilename: filepath.Clean(targetPath),
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})
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})
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}
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