Use a general approach to access custom/static/builtin assets (#24022)

The idea is to use a Layered Asset File-system (modules/assetfs/layered.go)

For example: when there are 2 layers: "custom", "builtin", when access
to asset "my/page.tmpl", the Layered Asset File-system will first try to
use "custom" assets, if not found, then use "builtin" assets.

This approach will hugely simplify a lot of code, make them testable.

Other changes:

* Simplify the AssetsHandlerFunc code
* Simplify the `gitea embedded` sub-command code

---------

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
This commit is contained in:
wxiaoguang 2023-04-12 18:16:45 +08:00 committed by GitHub
parent 42919ccb7c
commit 50a72e7a83
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36 changed files with 689 additions and 1055 deletions

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@ -6,15 +6,18 @@ package svg
import (
"fmt"
"html/template"
"path"
"regexp"
"strings"
"code.gitea.io/gitea/modules/html"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/public"
)
var (
// SVGs contains discovered SVGs
SVGs map[string]string
SVGs = map[string]string{}
widthRe = regexp.MustCompile(`width="[0-9]+?"`)
heightRe = regexp.MustCompile(`height="[0-9]+?"`)
@ -23,17 +26,29 @@ var (
const defaultSize = 16
// Init discovers SVGs and populates the `SVGs` variable
func Init() {
SVGs = Discover()
func Init() error {
files, err := public.AssetFS().ListFiles("img/svg")
if err != nil {
return err
}
// Remove `xmlns` because inline SVG does not need it
r := regexp.MustCompile(`(<svg\b[^>]*?)\s+xmlns="[^"]*"`)
for name, svg := range SVGs {
SVGs[name] = r.ReplaceAllString(svg, "$1")
reXmlns := regexp.MustCompile(`(<svg\b[^>]*?)\s+xmlns="[^"]*"`)
for _, file := range files {
if path.Ext(file) != ".svg" {
continue
}
bs, err := public.AssetFS().ReadFile("img/svg", file)
if err != nil {
log.Error("Failed to read SVG file %s: %v", file, err)
} else {
SVGs[file[:len(file)-4]] = reXmlns.ReplaceAllString(string(bs), "$1")
}
}
return nil
}
// Render render icons - arguments icon name (string), size (int), class (string)
// RenderHTML renders icons - arguments icon name (string), size (int), class (string)
func RenderHTML(icon string, others ...interface{}) template.HTML {
size, class := html.ParseSizeAndClass(defaultSize, "", others...)