Start using template context function (#26254)

Before:

* `{{.locale.Tr ...}}`
* `{{$.locale.Tr ...}}`
* `{{$.root.locale.Tr ...}}`
* `{{template "sub" .}}`
* `{{template "sub" (dict "locale" $.locale)}}`
* `{{template "sub" (dict "root" $)}}`
* .....

With context function: only need to `{{ctx.Locale.Tr ...}}`

The "ctx" could be considered as a super-global variable for all
templates including sub-templates.


To avoid potential risks (any bug in the template context function
package), this PR only starts using "ctx" in "head.tmpl" and
"footer.tmpl" and it has a "DataRaceCheck". If there is anything wrong,
the code can be fixed or reverted easily.

1 files changed, 2 insertions, 2 deletions

diff --git a/modules/test/context_tests.go b/modules/test/context_tests.go
index 9e7095e116..92d7f8b22b 100644
--- a/modules/test/context_tests.go
+++ b/modules/test/context_tests.go
@@ -150,11 +150,11 @@ func LoadGitRepo(t *testing.T, ctx *context.Context) {
 
 type mockRender struct{}
 
-func (tr *mockRender) TemplateLookup(tmpl string) (templates.TemplateExecutor, error) {
+func (tr *mockRender) TemplateLookup(tmpl string, _ gocontext.Context) (templates.TemplateExecutor, error) {
 	return nil, nil
 }
 
-func (tr *mockRender) HTML(w io.Writer, status int, _ string, _ any) error {
+func (tr *mockRender) HTML(w io.Writer, status int, _ string, _ any, _ gocontext.Context) error {
 	if resp, ok := w.(http.ResponseWriter); ok {
 		resp.WriteHeader(status)
 	}