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resources: Create a common ResourceFinder interface

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And make both .Resources and resources implement it.

This gets us 2 new methods/functions, so you can now also do:

* .Resources.Get
* resources.ByType

Note that GetRemote is not covered by this interface, as that is only available as a global template function.

Fixes #8653
This commit is contained in:
Bjørn Erik Pedersen 2021-10-20 10:11:48 +02:00
parent 20162518c4
commit e58a540895
7 changed files with 148 additions and 36 deletions
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2
common/types/hstring/stringtypes_test.go
View file

@ -21,7 +21,7 @@ import (
"github.com/spf13/cast"
)
func TestStringTypes(t *testing.T) {
func TestRenderedString(t *testing.T) {
c := qt.New(t)
// Validate that it will behave like a string in Hugo settings.

2
hugolib/hugo_sites_build_test.go
View file

@ -397,6 +397,8 @@ func doTestMultiSitesBuild(t *testing.T, configTemplate, configSuffix string) {
c.Assert(bundleFr, qt.Not(qt.IsNil))
c.Assert(len(bundleFr.Resources()), qt.Equals, 1)
logoFr := bundleFr.Resources().GetMatch("logo*")
logoFrGet := bundleFr.Resources().Get("logo.png")
c.Assert(logoFrGet, qt.Equals, logoFr)
c.Assert(logoFr, qt.Not(qt.IsNil))
b.AssertFileContent("public/fr/bundles/b1/index.html", "Resources: image/png: /blog/fr/bundles/b1/logo.png")
b.AssertFileContent("public/fr/bundles/b1/logo.png", "PNG Data")

3
hugolib/pagebundler_test.go
View file

@ -553,7 +553,8 @@ HEADLESS {{< myShort >}}
headlessResources := headless.Resources()
c.Assert(len(headlessResources), qt.Equals, 3)
c.Assert(len(headlessResources.Match("l*")), qt.Equals, 2)
res := headlessResources.Match("l*")
c.Assert(len(res), qt.Equals, 2)
pageResource := headlessResources.GetMatch("p*")
c.Assert(pageResource, qt.Not(qt.IsNil))
p := pageResource.(page.Page)

11
hugolib/resource_chain_test.go
View file

@ -696,6 +696,8 @@ func TestResourcesMatch(t *testing.T) {
b.WithContent("page.md", "")
b.WithSourceFile(
"assets/images/img1.png", "png",
"assets/images/img2.jpg", "jpg",
"assets/jsons/data1.json", "json1 content",
"assets/jsons/data2.json", "json2 content",
"assets/jsons/data3.xml", "xml content",
@ -704,7 +706,9 @@ func TestResourcesMatch(t *testing.T) {
b.WithTemplates("index.html", `
{{ $jsons := (resources.Match "jsons/*.json") }}
{{ $json := (resources.GetMatch "jsons/*.json") }}
{{ printf "JSONS: %d" (len $jsons) }}
{{ printf "jsonsMatch: %d" (len $jsons) }}
{{ printf "imagesByType: %d" (len (resources.ByType "image") ) }}
{{ printf "applicationByType: %d" (len (resources.ByType "application") ) }}
JSON: {{ $json.RelPermalink }}: {{ $json.Content }}
{{ range $jsons }}
{{- .RelPermalink }}: {{ .Content }}
@ -715,7 +719,10 @@ JSON: {{ $json.RelPermalink }}: {{ $json.Content }}
b.AssertFileContent("public/index.html",
"JSON: /jsons/data1.json: json1 content",
"JSONS: 2", "/jsons/data1.json: json1 content")
"jsonsMatch: 2",
"imagesByType: 2",
"applicationByType: 3",
"/jsons/data1.json: json1 content")
}
func TestResourceMinifyDisabled(t *testing.T) {

92
resources/resource/resources.go
View file

@ -18,35 +18,64 @@ import (
"strings"
"github.com/gohugoio/hugo/hugofs/glob"
"github.com/spf13/cast"
)
var _ ResourceFinder = (*Resources)(nil)
// Resources represents a slice of resources, which can be a mix of different types.
// I.e. both pages and images etc.
type Resources []Resource
// var _ resource.ResourceFinder = (*Namespace)(nil)
// ResourcesConverter converts a given slice of Resource objects to Resources.
type ResourcesConverter interface {
ToResources() Resources
}
// ByType returns resources of a given resource type (ie. "image").
func (r Resources) ByType(tp string) Resources {
// ByType returns resources of a given resource type (e.g. "image").
func (r Resources) ByType(typ any) Resources {
tpstr, err := cast.ToStringE(typ)
if err != nil {
panic(err)
}
var filtered Resources
for _, resource := range r {
if resource.ResourceType() == tp {
if resource.ResourceType() == tpstr {
filtered = append(filtered, resource)
}
}
return filtered
}
// Get locates the name given in Resources.
// The search is case insensitive.
func (r Resources) Get(name any) Resource {
namestr, err := cast.ToStringE(name)
if err != nil {
panic(err)
}
namestr = strings.ToLower(namestr)
for _, resource := range r {
if strings.EqualFold(namestr, resource.Name()) {
return resource
}
}
return nil
}
// GetMatch finds the first Resource matching the given pattern, or nil if none found.
// See Match for a more complete explanation about the rules used.
func (r Resources) GetMatch(pattern string) Resource {
g, err := glob.GetGlob(pattern)
func (r Resources) GetMatch(pattern any) Resource {
patternstr, err := cast.ToStringE(pattern)
if err != nil {
return nil
panic(err)
}
g, err := glob.GetGlob(patternstr)
if err != nil {
panic(err)
}
for _, resource := range r {
@ -67,10 +96,15 @@ func (r Resources) GetMatch(pattern string) Resource {
// Match matches by using the value of Resource.Name, which, by default, is a filename with
// path relative to the bundle root with Unix style slashes (/) and no leading slash, e.g. "images/logo.png".
// See https://github.com/gobwas/glob for the full rules set.
func (r Resources) Match(pattern string) Resources {
g, err := glob.GetGlob(pattern)
func (r Resources) Match(pattern any) Resources {
patternstr, err := cast.ToStringE(pattern)
if err != nil {
return nil
panic(err)
}
g, err := glob.GetGlob(patternstr)
if err != nil {
panic(err)
}
var matches Resources
@ -121,3 +155,43 @@ func (r Resources) MergeByLanguageInterface(in any) (any, error) {
type Source interface {
Publish() error
}
// ResourceFinder provides methods to find Resources.
// Note that GetRemote (as found in resources.GetRemote) is
// not covered by this interface, as this is only available as a global template function.
type ResourceFinder interface {
// Get locates the Resource with the given name in the current context (e.g. in .Page.Resources).
//
// It returns nil if no Resource could found, panics if name is invalid.
Get(name any) Resource
// GetMatch finds the first Resource matching the given pattern, or nil if none found.
//
// See Match for a more complete explanation about the rules used.
//
// It returns nil if no Resource could found, panics if pattern is invalid.
GetMatch(pattern any) Resource
// Match gets all resources matching the given base path prefix, e.g
// "*.png" will match all png files. The "*" does not match path delimiters (/),
// so if you organize your resources in sub-folders, you need to be explicit about it, e.g.:
// "images/*.png". To match any PNG image anywhere in the bundle you can do "**.png", and
// to match all PNG images below the images folder, use "images/**.jpg".
//
// The matching is case insensitive.
//
// Match matches by using a relative pathwith Unix style slashes (/) and no
// leading slash, e.g. "images/logo.png".
//
// See https://github.com/gobwas/glob for the full rules set.
//
// See Match for a more complete explanation about the rules used.
//
// It returns nil if no Resources could found, panics if pattern is invalid.
Match(pattern any) Resources
// ByType returns resources of a given resource type (e.g. "image").
// It returns nil if no Resources could found, panics if typ is invalid.
ByType(typ any) Resources
}

25
resources/resource_factories/create/create.go
View file

@ -65,26 +65,27 @@ func (c *Client) Get(filename string) (resource.Resource, error) {
// Match gets the resources matching the given pattern from the assets filesystem.
func (c *Client) Match(pattern string) (resource.Resources, error) {
return c.match(pattern, false)
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(pattern, true)
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(pattern string, firstOnly bool) (resource.Resources, error) {
var name string
if firstOnly {
name = "__get-match"
} else {
name = "__match"
}
func (c *Client) match(name, pattern string, matchFunc func(r resource.Resource) bool, firstOnly bool) (resource.Resources, error) {
pattern = glob.NormalizePath(pattern)
partitions := glob.FilterGlobParts(strings.Split(pattern, "/"))
if len(partitions) == 0 {
@ -110,6 +111,10 @@ func (c *Client) match(pattern string, firstOnly bool) (resource.Resources, erro
return true, err
}
if matchFunc != nil && !matchFunc(r) {
return false, nil
}
res = append(res, r)
return firstOnly, nil

49
tpl/resources/resources.go
View file

@ -16,9 +16,10 @@ package resources
import (
"fmt"
"path/filepath"
"sync"
"github.com/gohugoio/hugo/common/herrors"
"github.com/gohugoio/hugo/common/maps"
"github.com/pkg/errors"
@ -73,6 +74,8 @@ func New(deps *deps.Deps) (*Namespace, error) {
}, nil
}
var _ resource.ResourceFinder = (*Namespace)(nil)
// Namespace provides template functions for the "resources" namespace.
type Namespace struct {
deps *deps.Deps
@ -107,15 +110,19 @@ func (ns *Namespace) getscssClientDartSass() (*dartsass.Client, error) {
return ns.scssClientDartSass, err
}
// Get locates the filename given in Hugo's assets filesystem and
// creates a Resource object that can be used for
// further transformations.
func (ns *Namespace) Get(filename any) (resource.Resource, error) {
// Get locates the filename given in Hugo's assets filesystem
// and creates a Resource object that can be used for further transformations.
func (ns *Namespace) Get(filename any) resource.Resource {
filenamestr, err := cast.ToStringE(filename)
if err != nil {
return nil, err
panic(err)
}
return ns.createClient.Get(filepath.Clean(filenamestr))
r, err := ns.createClient.Get(filenamestr)
if err != nil {
panic(err)
}
return r
}
// GetRemote gets the URL (via HTTP(s)) in the first argument in args and creates Resource object that can be used for
@ -168,13 +175,23 @@ func (ns *Namespace) GetRemote(args ...any) resource.Resource {
// It looks for files in the assets file system.
//
// See Match for a more complete explanation about the rules used.
func (ns *Namespace) GetMatch(pattern any) (resource.Resource, error) {
func (ns *Namespace) GetMatch(pattern any) resource.Resource {
patternStr, err := cast.ToStringE(pattern)
if err != nil {
return nil, err
panic(err)
}
return ns.createClient.GetMatch(patternStr)
r, err := ns.createClient.GetMatch(patternStr)
if err != nil {
panic(err)
}
return r
}
// ByType returns resources of a given resource type (e.g. "image").
func (ns *Namespace) ByType(typ any) resource.Resources {
return ns.createClient.ByType(cast.ToString(typ))
}
// Match gets all resources matching the given base path prefix, e.g
@ -193,13 +210,19 @@ func (ns *Namespace) GetMatch(pattern any) (resource.Resource, error) {
// It looks for files in the assets file system.
//
// See Match for a more complete explanation about the rules used.
func (ns *Namespace) Match(pattern any) (resource.Resources, error) {
func (ns *Namespace) Match(pattern any) resource.Resources {
defer herrors.Recover()
patternStr, err := cast.ToStringE(pattern)
if err != nil {
return nil, err
panic(err)
}
return ns.createClient.Match(patternStr)
r, err := ns.createClient.Match(patternStr)
if err != nil {
panic(err)
}
return r
}
// Concat concatenates a slice of Resource objects. These resources must