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Improve template helper functions: string/slice (#24266)

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Follow #23328

The improvements:

1. The `contains` functions are covered by tests
2. The inconsistent behavior of `containGeneric` is replaced by
`StringUtils.Contains` and `SliceUtils.Contains`
3. In the future we can move more help functions into XxxUtils to
simplify the `helper.go` and reduce unnecessary global functions.

FAQ:

1. Why it's called `StringUtils.Contains` but not `strings.Contains`
like Golang?

Because our `StringUtils` is not Golang's `strings` package. There will
be our own string functions.

---------

Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
wxiaoguang 2023-04-23 02:16:22 +08:00 • committed by GitHub
parent c0d105609f
commit 8820191476
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
11 changed files with 105 additions and 40 deletions
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36
modules/templates/helper.go
View file

@ -15,7 +15,6 @@ import (
"mime"
"net/url"
"path/filepath"
"reflect"
"regexp"
"strings"
"time"
@ -68,11 +67,15 @@ func NewFuncMap() []template.FuncMap {
"PathEscape": url.PathEscape,
"PathEscapeSegments": util.PathEscapeSegments,
// utils
"StringUtils": NewStringUtils,
"SliceUtils": NewSliceUtils,
// -----------------------------------------------------------------
// string / json
// TODO: move string helper functions to StringUtils
"Join": strings.Join,
"DotEscape": DotEscape,
"HasPrefix": strings.HasPrefix,
"EllipsisString": base.EllipsisString,
"DumpVar": dumpVar,
@ -144,35 +147,6 @@ func NewFuncMap() []template.FuncMap {
return fmt.Sprint(time.Since(startTime).Nanoseconds()/1e6) + "ms"
},
// -----------------------------------------------------------------
// slice
"containGeneric": func(arr, v interface{}) bool {
arrV := reflect.ValueOf(arr)
if arrV.Kind() == reflect.String && reflect.ValueOf(v).Kind() == reflect.String {
return strings.Contains(arr.(string), v.(string))
}
if arrV.Kind() == reflect.Slice {
for i := 0; i < arrV.Len(); i++ {
iV := arrV.Index(i)
if !iV.CanInterface() {
continue
}
if iV.Interface() == v {
return true
}
}
}
return false
},
"contain": func(s []int64, id int64) bool {
for i := 0; i < len(s); i++ {
if s[i] == id {
return true
}
}
return false
},
// -----------------------------------------------------------------
// setting
"AppName": func() string {

0
modules/templates/util.go → modules/templates/util_dict.go
View file

35
modules/templates/util_slice.go Normal file
View file

@ -0,0 +1,35 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package templates
import (
"fmt"
"reflect"
)
type SliceUtils struct{}
func NewSliceUtils() *SliceUtils {
return &SliceUtils{}
}
func (su *SliceUtils) Contains(s, v any) bool {
if s == nil {
return false
}
sv := reflect.ValueOf(s)
if sv.Kind() != reflect.Slice && sv.Kind() != reflect.Array {
panic(fmt.Sprintf("invalid type, expected slice or array, but got: %T", s))
}
for i := 0; i < sv.Len(); i++ {
it := sv.Index(i)
if !it.CanInterface() {
continue
}
if it.Interface() == v {
return true
}
}
return false
}

20
modules/templates/util_string.go Normal file
View file

@ -0,0 +1,20 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package templates
import "strings"
type StringUtils struct{}
func NewStringUtils() *StringUtils {
return &StringUtils{}
}
func (su *StringUtils) HasPrefix(s, prefix string) bool {
return strings.HasPrefix(s, prefix)
}
func (su *StringUtils) Contains(s, substr string) bool {
return strings.Contains(s, substr)
}

36
modules/templates/util_test.go
View file

@ -4,6 +4,9 @@
package templates
import (
"html/template"
"io"
"strings"
"testing"
"github.com/stretchr/testify/assert"
@ -41,3 +44,36 @@ func TestDict(t *testing.T) {
assert.Error(t, err)
}
}
func TestUtils(t *testing.T) {
execTmpl := func(code string, data any) string {
tmpl := template.New("test")
tmpl.Funcs(template.FuncMap{"SliceUtils": NewSliceUtils, "StringUtils": NewStringUtils})
template.Must(tmpl.Parse(code))
w := &strings.Builder{}
assert.NoError(t, tmpl.Execute(w, data))
return w.String()
}
actual := execTmpl("{{SliceUtils.Contains .Slice .Value}}", map[string]any{"Slice": []string{"a", "b"}, "Value": "a"})
assert.Equal(t, "true", actual)
actual = execTmpl("{{SliceUtils.Contains .Slice .Value}}", map[string]any{"Slice": []string{"a", "b"}, "Value": "x"})
assert.Equal(t, "false", actual)
actual = execTmpl("{{SliceUtils.Contains .Slice .Value}}", map[string]any{"Slice": []int64{1, 2}, "Value": int64(2)})
assert.Equal(t, "true", actual)
actual = execTmpl("{{StringUtils.Contains .String .Value}}", map[string]any{"String": "abc", "Value": "b"})
assert.Equal(t, "true", actual)
actual = execTmpl("{{StringUtils.Contains .String .Value}}", map[string]any{"String": "abc", "Value": "x"})
assert.Equal(t, "false", actual)
tmpl := template.New("test")
tmpl.Funcs(template.FuncMap{"SliceUtils": NewSliceUtils, "StringUtils": NewStringUtils})
template.Must(tmpl.Parse("{{SliceUtils.Contains .Slice .Value}}"))
// error is like this: `template: test:1:12: executing "test" at <SliceUtils.Contains>: error calling Contains: ...`
err := tmpl.Execute(io.Discard, map[string]any{"Slice": struct{}{}})
assert.ErrorContains(t, err, "invalid type, expected slice or array")
}

2
templates/repo/graph/commits.tmpl
View file

@ -35,7 +35,7 @@
{{range $commit.Refs}}
{{$refGroup := .RefGroup}}
{{if eq $refGroup "pull"}}
{{if or (not $.HidePRRefs) (containGeneric $.SelectedBranches .Name)}}
{{if or (not $.HidePRRefs) (SliceUtils.Contains $.SelectedBranches .Name)}}
<!-- it's intended to use issues not pulls, if it's a pull you will get redirected -->
<a class="ui labelled icon button basic tiny gt-mr-2" href="{{$.RepoLink}}/{{if $.Repository.UnitEnabled $.Context $.UnitTypePullRequests}}pulls{{else}}issues{{end}}/{{.ShortName|PathEscape}}">
{{svg "octicon-git-pull-request" 16 "gt-mr-2"}}#{{.ShortName}}

2
templates/repo/header.tmpl
View file

@ -217,7 +217,7 @@
{{end}}
{{if or (.Permission.CanRead $.UnitTypeWiki) (.Permission.CanRead $.UnitTypeExternalWiki)}}
<a class="{{if .PageIsWiki}}active {{end}}item" href="{{.RepoLink}}/wiki" {{if and (.Permission.CanRead $.UnitTypeExternalWiki) (not (HasPrefix ((.Repository.MustGetUnit $.Context $.UnitTypeExternalWiki).ExternalWikiConfig.ExternalWikiURL) (.Repository.Link)))}} target="_blank" rel="noopener noreferrer" {{end}}>
<a class="{{if .PageIsWiki}}active {{end}}item" href="{{.RepoLink}}/wiki" {{if and (.Permission.CanRead $.UnitTypeExternalWiki) (not (StringUtils.HasPrefix ((.Repository.MustGetUnit $.Context $.UnitTypeExternalWiki).ExternalWikiConfig.ExternalWikiURL) (.Repository.Link)))}} target="_blank" rel="noopener noreferrer" {{end}}>
{{svg "octicon-book"}} {{.locale.Tr "repo.wiki"}}
</a>
{{end}}

2
templates/repo/issue/list.tmpl
View file

@ -227,7 +227,7 @@
{{end}}
{{$previousExclusiveScope = $exclusiveScope}}
<div class="item issue-action" data-action="toggle" data-element-id="{{.ID}}" data-url="{{$.RepoLink}}/issues/labels">
{{if contain $.SelLabelIDs .ID}}{{if $exclusiveScope}}{{svg "octicon-dot-fill"}}{{else}}{{svg "octicon-check"}}{{end}}{{end}} {{RenderLabel $.Context .}}
{{if SliceUtils.Contains $.SelLabelIDs .ID}}{{if $exclusiveScope}}{{svg "octicon-dot-fill"}}{{else}}{{svg "octicon-check"}}{{end}}{{end}} {{RenderLabel $.Context .}}
</div>
{{end}}
</div>

4
templates/repo/issue/milestone_issues.tmpl
View file

@ -65,7 +65,7 @@
<span class="info">{{.locale.Tr "repo.issues.filter_label_exclude" | Safe}}</span>
<a class="item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&assignee={{$.AssigneeID}}&poster={{$.PosterID}}">{{.locale.Tr "repo.issues.filter_label_no_select"}}</a>
{{range .Labels}}
<a class="item label-filter-item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.QueryString}}&assignee={{$.AssigneeID}}&poster={{$.PosterID}}" data-label-id="{{.ID}}">{{if .IsExcluded}}{{svg "octicon-circle-slash"}}{{else if contain $.SelLabelIDs .ID}}{{svg "octicon-check"}}{{end}} {{RenderLabel $.Context .}}</a>
<a class="item label-filter-item" href="{{$.Link}}?q={{$.Keyword}}&type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{.QueryString}}&assignee={{$.AssigneeID}}&poster={{$.PosterID}}" data-label-id="{{.ID}}">{{if .IsExcluded}}{{svg "octicon-circle-slash"}}{{else if SliceUtils.Contains $.SelLabelIDs .ID}}{{svg "octicon-check"}}{{end}} {{RenderLabel $.Context .}}</a>
{{end}}
</div>
</div>
@ -171,7 +171,7 @@
<div class="menu">
{{range .Labels}}
<div class="item issue-action" data-action="toggle" data-element-id="{{.ID}}" data-url="{{$.RepoLink}}/issues/labels">
{{if contain $.SelLabelIDs .ID}}{{svg "octicon-check"}}{{end}} {{RenderLabel $.Context .}}
{{if SliceUtils.Contains $.SelLabelIDs .ID}}{{svg "octicon-check"}}{{end}} {{RenderLabel $.Context .}}
</div>
{{end}}
</div>

4
templates/repo/issue/view_content/attachments.tmpl
View file

@ -8,7 +8,7 @@
<div class="gt-f1 gt-p-3">
<a target="_blank" rel="noopener noreferrer" href="{{.DownloadURL}}" title='{{$.ctxData.locale.Tr "repo.issues.attachment.open_tab" .Name}}'>
{{if FilenameIsImage .Name}}
{{if not (containGeneric $.Content .UUID)}}
{{if not (StringUtils.Contains $.Content .UUID)}}
{{$hasThumbnails = true}}
{{end}}
{{svg "octicon-file"}}
@ -29,7 +29,7 @@
<div class="ui small thumbnails">
{{- range .Attachments -}}
{{if FilenameIsImage .Name}}
{{if not (containGeneric $.Content .UUID)}}
{{if not (StringUtils.Contains $.Content .UUID)}}
<a target="_blank" rel="noopener noreferrer" href="{{.DownloadURL}}">
<img alt="{{.Name}}" src="{{.DownloadURL}}" title='{{$.ctxData.locale.Tr "repo.issues.attachment.open_tab" .Name}}'>
</a>

4
templates/repo/settings/tags.tmpl
View file

@ -92,14 +92,14 @@
{{if or .AllowlistUserIDs (and $.Owner.IsOrganization .AllowlistTeamIDs)}}
{{$userIDs := .AllowlistUserIDs}}
{{range $.Users}}
{{if contain $userIDs .ID}}
{{if SliceUtils.Contains $userIDs .ID}}
<a class="ui basic label" href="{{.HomeLink}}">{{avatar $.Context . 26}} {{.GetDisplayName}}</a>
{{end}}
{{end}}
{{if $.Owner.IsOrganization}}
{{$teamIDs := .AllowlistTeamIDs}}
{{range $.Teams}}
{{if contain $teamIDs .ID}}
{{if SliceUtils.Contains $teamIDs .ID}}
<a class="ui basic label" href="{{$.Owner.OrganisationLink}}/teams/{{PathEscape .LowerName}}">{{.Name}}</a>
{{end}}
{{end}}