feat: wiki search using git-grep

+ add release note

modules/git/grep.go

@@ -27,6 +27,7 @@ type GrepResult struct {
 type GrepOptions struct {
 	RefName           string
 	MaxResultLimit    int
+	MatchesPerFile    int
 	ContextLineNumber int
 	IsFuzzy           bool
 	PathSpec          []setting.Glob
@@ -54,6 +55,9 @@ func GrepSearch(ctx context.Context, repo *Repository, search string, opts GrepO
 	var results []*GrepResult
 	cmd := NewCommand(ctx, "grep", "--null", "--break", "--heading", "--fixed-strings", "--line-number", "--ignore-case", "--full-name")
 	cmd.AddOptionValues("--context", fmt.Sprint(opts.ContextLineNumber))
+	if opts.MatchesPerFile > 0 {
+		cmd.AddOptionValues("--max-count", fmt.Sprint(opts.MatchesPerFile))
+	}
 	if opts.IsFuzzy {
 		words := strings.Fields(search)
 		for _, word := range words {

modules/git/grep_test.go

@@ -44,6 +44,31 @@ func TestGrepSearch(t *testing.T) {
 		},
 	}, res)
 
+	res, err = GrepSearch(context.Background(), repo, "world", GrepOptions{MatchesPerFile: 1})
+	assert.NoError(t, err)
+	assert.Equal(t, []*GrepResult{
+		{
+			Filename:    "i-am-a-python.p",
+			LineNumbers: []int{1},
+			LineCodes:   []string{"## This is a simple file to do a hello world"},
+		},
+		{
+			Filename:    "java-hello/main.java",
+			LineNumbers: []int{1},
+			LineCodes:   []string{"public class HelloWorld"},
+		},
+		{
+			Filename:    "main.vendor.java",
+			LineNumbers: []int{1},
+			LineCodes:   []string{"public class HelloWorld"},
+		},
+		{
+			Filename:    "python-hello/hello.py",
+			LineNumbers: []int{1},
+			LineCodes:   []string{"## This is a simple file to do a hello world"},
+		},
+	}, res)
+
 	res, err = GrepSearch(context.Background(), repo, "no-such-content", GrepOptions{})
 	assert.NoError(t, err)
 	assert.Len(t, res, 0)

options/locale/locale_en-US.ini

@@ -2016,6 +2016,8 @@ wiki.pages = Pages
 wiki.last_updated = Last updated %s
 wiki.page_name_desc = Enter a name for this Wiki page. Some special names are: "Home", "_Sidebar" and "_Footer".
 wiki.original_git_entry_tooltip = View original Git file instead of using friendly link.
+wiki.search = Search wiki
+wiki.no_search_results = No results
 
 activity = Activity
 activity.navbar.pulse = Pulse

release-notes/8.0.0/feat/3847.md

@@ -0,0 +1,3 @@
+Basic wiki content search using git-grep
+    - The search results include the first ten matched files
+    - Only the first three matches per file are displayed

routers/web/repo/wiki.go

@@ -40,6 +40,7 @@ const (
 	tplWikiRevision base.TplName = "repo/wiki/revision"
 	tplWikiNew      base.TplName = "repo/wiki/new"
 	tplWikiPages    base.TplName = "repo/wiki/pages"
+	tplWikiSearch   base.TplName = "repo/wiki/search"
 )
 
 // MustEnableWiki check if wiki is enabled, if external then redirect
@@ -795,3 +796,20 @@ func DeleteWikiPagePost(ctx *context.Context) {
 
 	ctx.JSONRedirect(ctx.Repo.RepoLink + "/wiki/")
 }
+
+func WikiSearchContent(ctx *context.Context) {
+	keyword := ctx.FormTrim("q")
+	if keyword == "" {
+		ctx.HTML(http.StatusOK, tplWikiSearch)
+		return
+	}
+
+	res, err := wiki_service.SearchWikiContents(ctx, ctx.Repo.Repository, keyword)
+	if err != nil {
+		ctx.ServerError("SearchWikiContents", err)
+		return
+	}
+
+	ctx.Data["Results"] = res
+	ctx.HTML(http.StatusOK, tplWikiSearch)
+}

routers/web/web.go

@@ -1417,6 +1417,7 @@ func registerRoutes(m *web.Route) {
 		})
 
 		m.Group("/wiki", func() {
+			m.Get("/search", repo.WikiSearchContent)
 			m.Get("/raw/*", repo.WikiRaw)
 		}, repo.MustEnableWiki)
 

services/wiki/wiki.go

@@ -407,3 +407,19 @@ func DeleteWiki(ctx context.Context, repo *repo_model.Repository) error {
 	system_model.RemoveAllWithNotice(ctx, "Delete repository wiki", repo.WikiPath())
 	return nil
 }
+
+func SearchWikiContents(ctx context.Context, repo *repo_model.Repository, keyword string) ([]*git.GrepResult, error) {
+	gitRepo, err := git.OpenRepository(ctx, repo.WikiPath())
+	if err != nil {
+		return nil, err
+	}
+	defer gitRepo.Close()
+
+	return git.GrepSearch(ctx, gitRepo, keyword, git.GrepOptions{
+		ContextLineNumber: 0,
+		IsFuzzy:           true,
+		RefName:           repo.GetWikiBranchName(),
+		MaxResultLimit:    10,
+		MatchesPerFile:    3,
+	})
+}

templates/repo/wiki/search.tmpl

@@ -0,0 +1,12 @@
+{{if .Results}}
+    {{range .Results}}
+        <a class="item" href="{{$.RepoLink}}/wiki/{{.Filename}}">
+            <b class="tw-block tw-mb-2">{{.Filename}}</b>
+            {{range .LineCodes}}
+                <p class="tw-my-0">{{.}}</p>
+            {{end}}
+        </a>
+    {{end}}
+{{else}}
+    <div class="item muted">{{ctx.Locale.Tr "repo.wiki.no_search_results"}}</div>
+{{end}}

templates/repo/wiki/view.tmpl

@@ -32,6 +32,15 @@
 				{{template "repo/clone_buttons" .}}
 				{{template "repo/clone_script" .}}
 			</div>
+			<div class="ui floating dropdown jump">
+				<div class="ui icon search input">
+					<i class="icon">{{svg "octicon-search"}}</i>
+					<input type="search" name="q" hx-get="{{$.RepoLink}}/wiki/search" hx-target="#wiki-search" hx-swap="innerHTML" hx-trigger="keyup changed delay:.5s" placeholder="{{ctx.Locale.Tr "repo.wiki.search"}}..." />
+				</div>
+				<div id="wiki-search" class="menu tw-absolute tw-mt-3 tw-rounded right">
+					<div class="item muted">{{ctx.Locale.Tr "repo.wiki.no_search_results"}}</div>
+				</div>
+			</div>
 		</div>
 		<div class="ui dividing header">
 			<div class="ui stackable grid">

tests/integration/repo_wiki_test.go

@@ -15,9 +15,26 @@ import (
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/tests"
 
+	"github.com/PuerkitoBio/goquery"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestWikiSearchContent(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	req := NewRequest(t, "GET", "/user2/repo1/wiki/search?q=This")
+	resp := MakeRequest(t, req, http.StatusOK)
+	doc := NewHTMLParser(t, resp.Body)
+	res := doc.Find(".item > b").Map(func(_ int, el *goquery.Selection) string {
+		return el.Text()
+	})
+	assert.Equal(t, []string{
+		"Home.md",
+		"Page-With-Spaced-Name.md",
+		"Unescaped File.md",
+	}, res)
+}
+
 func TestWikiBranchNormalize(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()